Model 185 and 185B

WEIGHT INDICATOR
INSTALLATION and TECHNICAL MANUAL

8400-0181-OM Rev E x 185 and 185B Installation & Technical

8400-0181-OM Rev E x 185 and 185B Installation & Technical
 TABLE OF CONTENTS
Specifications x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 1
Site Preparation Requirements x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 3
Installation x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 5
Unpacking x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 5
Mounting x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 5
AC Power Adapter x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 5
Batteries (Model 185B only) x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 6
Battery Status x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 6
Low Battery Indicator x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 6
Battery Charging x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 6
Battery Installation/Replacement x x x x x x x x x x x x x x x x x x x x x x Page 7
Load Cell Connection x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 8
Load Cell Connections with over 30 Feet of Cable x x x x x x x x x x x Page 8
Scale End Load Cell Cable Ferrite Core x x x x x x x x x x x x x x x x x x x Page 9
Serial Port Cable Installation x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 9
Main PCB and Jumpers x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 10
Re-Installing the Rear Panel x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 10
Keypad Functions x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 11
Annunciators x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 13
Setup and Calibration x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 15
Re-Installing the Rear Panel x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 22
Fine Span Adjustment x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 23
Setup Review x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 24
Serial Data Formats x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 25
Piece Counting x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 27
Error Codes x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 28
Millivolts Display x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 28
Event Counters x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 29
Security Seal Installation x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 30
Before You Call Service x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 31
Care and Cleaning x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 31
Parts Identification x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x x Page 32

SERIAL NUMBER _____________________

DATE OF PURCHASE _________________
PURCHASED FROM __________________
____________________________________
____________________________________
____________________________________
RETAIN THIS INFORMATION FOR FUTURE USE

PRECAUTIONS
Before using this indicator, read this manual and pay special attention to all
"NOTIFICATION" symbols:

IMPORTANT ELECTRICAL STATIC

WARNING SENSITVE

8400-0181-OM Rev E x 185 and 185B Installation & Technical I

 FCC COMPLIANCE STATEMENT
This equipment generates uses, can radiate radio frequency, and if not installed and used in
accordance with the instruction manual, may cause interference to radio communications. It
has been designed within the limits for a Class A computing device pursuant to Subpart J of
Part 15 of FCC rules to provide reasonable protection against such interference when
operated in a commercial environment. Operation of this equipment in a residential area may
cause interference, in which case the user will be responsible to take whatever measures
necessary to correct the interference.

You may find the booklet “How to Identify and Resolve Radio TV Interference Problems”
prepared by the Federal Communications Commission helpful. It is available from the U.S.
Government Printing Office, Washington, D.C. 20402. Request stock No. 001-000-00315-4.

PROPER DISPOSAL
When this device reaches the end of its useful life, it must be properly disposed of. It must not
be disposed of as unsorted municipal waste. Within the European Union, this device should be
returned to the distributor from where it was purchased for proper disposal. This is in
accordance with EU Directive 2002/96/EC. Within North America, the device should be
disposed of in accordance with the local laws regarding the disposal of waste electrical and
electronic equipment.

It is everyone’s responsibility to help maintain the environment and to reduce

the effects of hazardous substances contained in electrical and electronic
equipment on human health. Please do your part by making certain that this
device is properly disposed of. The symbol shown to the right indicates that
this device must not be disposed of in unsorted municipal waste programs.

CAUTION
CAUTION: RISK OF EXPLOSION IF BATTERY IS REPLACED BY AN INCORRECT
TYPE. DISPOSE OF USED BATTERIES ACCORDING TO THE INSTRUCTIONS.

ATTENTION: RISQUE D'EXPLOSION SI LA BATTERIES EST REMPLACE'E PAR

UN TYPE INCORRECT. REJETEZ LES BATTERIES UTILISE'ES SELON LES
INSTRUCTIONS.

COPYRIGHT
All rights reserved. Reproduction or use, without expressed written permission, of editorial or
pictorial content, in any manner, is prohibited. No patent liability is assumed with respect to the
use of the information contained herein.

DISCLAIMER
While every precaution has been taken in the preparation of this manual, the Seller assumes
no responsibility for errors or omissions. Neither is any liability assumed for damages resulting
from use of the information contained herein. All instructions and diagrams have been checked
for accuracy and ease of application; however, success and safety in working with tools
depend to a great extent upon the individual accuracy, skill and caution. For this reason, the
Seller is not able to guarantee the result of any procedure contained herein. Nor can they
assume responsibility for any damage to property or injury to persons occasioned from the
procedures. Persons engaging the procedures do so entirely at their own risk.

II 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 SPECIFICATIONS
Power Requirements:
Model 185: Included: 100 to 240 VAC 50/60Hz 12 VDC 1 A wall plug-in UL/CSA listed
AC power adapter with US plug (Cardinal Part Number 8400-0182-0A).
Optional: 100 to 240 VAC 50/60Hz 12 VDC 1 A wall plug-in AC power
adapter with International Interchangeable plug (Cardinal Part Number
8400-0182-1A).
Power Requirements: Six “AA” Alkaline, 2700mAh Ni-MH, or Ni-Cad batteries (not included) -OR-
Model 185B: Included: 100 to 240 VAC 50/60Hz 12 VDC 1 A wall plug-in UL/CSA listed
AC power adapter with US plug (Cardinal Part Number 8400-0182-0A).
Optional: 100 to 240 VAC 50/60Hz 12 VDC 1 A wall plug-in AC power
adapter with International Interchangeable plug (Cardinal Part Number
8400-0182-1A).
Construction: IP66 ABS indicator enclosure with versatile stainless-steel wall or desktop
mounting bracket.
CAUTION! The AC power adapters (Cardinal part number 8400-0182-0A
and 8400-0182-1A) are not IP66 rated.
Operating Environment: Temperature: 14 to 104 ºF (-10 to +40 ºC)
Humidity: 90% non-condensing (maximum)
Weight Display: Six-digit, seven-segment, 1.0” (25mm) high, backlit green LCD
Load Cell Excitation: 5.0 VDC
Signal Input Range: 0mV min. to 40mV max.
Number of Load Cells: Up to 4 at 350 Ohm minimum resistance
Load Cell Cable Length: 1500 feet (450 meters) maximum with sense lines
30 feet (9 meters) maximum without sense lines
Division Value: 1, 2 or 5 x 10, 1, 0.1, 0.01, 0.001
Sensitivity:
NON-COMMERCIAL 0.4uV/e
NTEP 1.2uV/e (Class III/IIIL)
OIML 1.2uV/e (Class 3)
Scale Divisions:
NON-COMMERCIAL 100 to 100,000
NTEP 100 to 6,000 (Class III/IIIL)
OIML 100 to 6,000 (Class 3)
Internal Resolution: 1 part in 16,777,216
Tare Capacity: Scale Capacity
Sample Rate: 10 samples per second
Auto Zero Range: 0.5 or 1 through 9 divisions
Weighing Units: Pounds (lb), Ounces (oz), Kilograms (kg), Grams (g)
Keypad: 7-key Membrane type
Keys: ON/OFF, ZERO, TARE/ , NET/GROSS, UNITS/W, FN/S, PRINT
Standard I/O: (1) bi-directional RS-232
Standard Features: Piece Counting, Millivolt Display Diagnostic Function

8400-0181-OM Rev E x 185 and 185B Installation & Technical 1

 SPECIFICATIONS, CONT.
Enclosure Dimensions: 7.7” W x 4.7” H x 2.6” D (19.6 cm W x 11. 9 cm H x 6. 6 cm D)
Net Weight:
Model 185: 2.3 lb (1.04 kg)
Model 185B: 2.5 lb (1.13 kg)
Shipping Dimensions: 13” L x 11” W x 8” H (33 cm L x 28 cm W x 20.3 cm H)
Shipping Weight:
Model 185: 3.2 lb (1.45 kg)
Model 185B: 3.4 lb (1.54 kg)
Country of Origin: USA
Certifications: NTEP: Certificate No. 18-075
Measurement Canada: Approval No. AM-6109
OIML: Certificate No. R-76/2006-A-DK2-18.04
EU Type-Examination: Certificate No. 0200-NAWI-03187

2 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 SITE PREPARATION REQUIREMENTS
The Model 185 and 185B Weight Indicators are precision weight indicating instruments. As
with any precision instrument, it requires an acceptable environment to operate at peak
performance and reliability. This section is provided to assist you in obtaining such an
environment.

Environmental
The Model 185 and 185B Weight Indicators
meet or exceed all certification
requirements within a temperature range of
14 to 104 °F (-10 to +40 °C).

In order to keep cooling requirements to a

minimum, the indicator should be placed
out of direct sunlight, and the area around
the indicator kept clear to provide adequate
air circulation.

Do not place the indicator directly in front of

a heating or cooling vent. Such a location
will subject the indicator to sudden
temperature changes, which may result in
unstable weight readings.

Make sure the indicator has good, clean AC

power, and is properly grounded. In areas
subject to lightning strikes, additional
protection to minimize lightning damage,
such as surge suppressors, should be
installed.

Electrical Power
The Model 185 and 185B Weight Indicators
have been designed to operate from either
an included 100 to 240 VAC 50/60Hz 12
VDC 1 A wall plug-in UL/CSA listed AC
power adapter with US plug (Cardinal Part
Number 8400-0182-0A) or an optional 100
to 240 VAC 50/60Hz 12 VDC 1 A wall plug-in AC power adapter with International
Interchangeable plug (Cardinal Part Number 8400-0182-1A).

CAUTION! The AC power adapters (Cardinal part number 8400-0182-0A and

8400-0182-1A) are not IP66 rated.

ƒ The socket-outlet supplying power to the indicator should be on a separate circuit from the
distribution panel and dedicated to the exclusive use of the indicator.
ƒ The socket-outlet shall be installed near the equipment and shall be easily accessible.
ƒ The wiring should conform to national and local electrical codes and ordinances, and
should be approved by the local inspector to assure compliance.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 3

Electrical Noise Interference
To prevent electrical noise interference, make certain all other wall outlets for use with air
conditioning and heating equipment, lighting or other equipment with heavily inductive loads,
such as welders, motors, and solenoids are on circuits separate from the indicator. Many of
these disturbances originate within the building itself and can seriously affect the operation of
the indicator. These sources of disturbances must be identified and steps must be taken to
prevent possible adverse effects on the indicator. Examples of available alternatives include
isolation transformers, power regulators, uninterruptible power supplies, or simple line filters.

Transient Suppression
The following recommendations will help to reduce transients:
y Always use shielded cables to connect signal wires to the weight indicator.
y Connect the cable shield (indicator end only) to a ground point inside the indicator. Keep
wires that extend beyond the shield as short as possible.
y Do not run load cell or signal cables from the weight indicator along side or parallel to
wiring carrying AC power. If unavoidable, position the load cell and signal cables a
minimum of 24" (~60 cm) away from all AC wiring.
y Always use arc suppressors across all AC power relay contacts.
y Use zero voltage switching relays, optically isolated if possible.

RFI Immunity
The operation of sensitive electronic equipment can be adversely affected by RF (Radio
Frequency) radio transmissions. Digital weight indicators are one such type of equipment.
Radio transmissions come from things like hand-held radio transmitters and cell phones. One
symptom of RFI (Radio Frequency Interference) in a digital weight indicator is weight indication
instability during a radio transmission.

Cardinal digital weight indicators are designed with special grounding and RFI shielding to
achieve a high degree of immunity to common RFI. To maximize the digital weight indicator’s
immunity to radio transmissions, follow these guidelines:
1. ALWAYS use shielded cable for all I/O (Input/Output) connections to the digital weight
indicator.
2. NEVER operate any radio transmitter within 6 feet (~2 meters) of the weight indicator.
3. NEVER connect un-terminated serial, digital, or analog I/O cables to the internal printed
circuit boards of the digital weight indicator.
4. KEEP the intended external I/O device connected to I/O cables entering the digital
weight indicator.
5. ALWAYS connect the shield of the shielded cable to the indicator back panel gland
connector or other closest ground terminal inside the indicator.
6. ALWAYS connect the shield of the shielded I/O cable at the indicator end only. Leave
the shield unconnected at the I/O device.

4 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 INSTALLATION
Unpacking
Carefully remove the indicator from the shipping carton and inspect it for any evidence of
damage that may have taken place during shipment. Keep the carton and packing material for
return shipment if it should become necessary. The purchaser is responsible for filing all claims
for any damages or loss incurred during transit.

Should your indicator come already installed on a scale, the following

installation information does not apply to you.

Mounting
The Model 185 and 185B indicators are housed in an ABS IP66 wall or desk-mount enclosure.
The gimbal may be mounted on a desktop or other smooth, flat, horizontal surface or may be
mounted on a wall. Refer to Figure No. 1 for a layout of wall-mounting bolts.

Clearance for #10 Figure No. 1

(5 mm) size screw

2.00"
(5.1 cm)

6.25" (15.88 cm)

NOTE: Your gimbal may only have two mounting holes, spaced 6.00” (15.24 cm) apart.

If wall mounted, make certain the mounting surface is strong enough to support the indicator.
The mounting location should be where the display is easily viewed while being close enough
to provide the operator easy access to the keypad. Carefully lay out the mounting hole
locations, then drill and install the anchor bolts. Attach the gimbal to the wall and securely
tighten the retaining bolts.

AC Power Load Cell Serial Port

Adapter Connector Connector

Figure No. 2

AC Power Adapter
To power the Model 185 or 185B using the 12 VDC wall plug-in AC power adapter, connect
the plug from the adapter into the power jack on the bottom panel of the indicator and then
plug the power adapter into the proper electrical outlet. Refer to Figure No. 2.
NOTE: Although the indicator is IP66 rated, the AC power adapters are not.
8400-0181-OM Rev E x 185 and 185B Installation & Technical 5
 NOTE: The following sections (Batteries, Battery Status, Low Battery Indicator,
Battery Charging, and Battery Installation/Replacement) only apply to the
Model 185B Weight Indicator.

Batteries
The Model 185B indicator can use 6 "AA" size Alkaline, 2700mAh NiMH, or Ni-Cad batteries
(not included). You must first obtain and install the batteries before operations can begin.
Batteries are contained in a battery holder inside the indicator. Access is via removing the back
panel from the main housing.

CAUTION! When operating the Model 185B from Alkaline, NiMH, or Ni-Cad
batteries, all six (6) batteries must be of the same type. They must all be Alkaline, all
NiMH, or all Ni-Cad. DO NOT mix Alkaline, NiMH, and Ni-Cad batteries.

IMPORTANT! The AC power adapter is also used to recharge the batteries, when
the Model 185B is operated from rechargeable batteries. The indicator will detect the
type of battery installed and only charge if they are a rechargeable type battery.

To determine battery chemistry, the Model 185B will send a charge into all types of
batteries for less than 1 second. During this time, the charge indicator will scroll as
if the batteries are being charged. This is normal and is not harmful to the Alkaline
batteries.

NOTE: Once Alkaline batteries are detected, the chemistry detection is stopped and
Alkaline batteries are assumed to be installed until the indicator is completely
powered off and back on.

Battery Status
The Model 185B indicator will operate for up to 70 hours (with one 350-ohm load cell) on new
Alkaline batteries or 2700mAh NiMH batteries depending on the condition of the batteries
(from new to about 500 recharges). Note that due to the lower milliamp hour capacity of Ni-
Cad batteries, the operating time will be less. The battery bar graph on the display indicates
the battery capacity in 4 steps:

4 segments - the full battery capacity is available,

3 segments - the battery is at 75% of capacity,
2 segments - the battery is at 50% of capacity,
1 segment: - the battery is at 25% capacity.

Low Battery Indicator

When the battery voltage drops too low for accurate weighing, the Model 185B indicator will
show !6; briefly, and then shut off. You will be unable to turn the indicator back on until the
Alkaline batteries have been replaced or if using NiMH or Ni-Cad batteries, the AC power
adapter is connected to the indicator to recharge the batteries.

Battery Charging
To recharge the NiMH or Ni-Cad batteries, the AC power adapter must be connected to a
power outlet and plugged into the indicator. Note that when the AC power adapter is
connected to the indicator and is charging the batteries, the charge level status bars will scroll.
It will take approximately 8 to 10 hours to fully recharge the batteries. Charging the batteries
for more than 10 hours will not damage them.

NOTE: The Model 185B indicator may be operated while the batteries are charging.

6 8400-0181-OM Rev E x 185 and 185B Installation & Technical

Battery Installation/Replacement
IMPORTANT! If changing from Alkaline batteries to rechargeable batteries, be
sure to completely power off the indicator first. If this step is not performed,
the batteries will not charge.

To install or remove the batteries, the following steps should be followed:

1. Make sure the AC power adapter is
unplugged.
2. Remove the indicator from the mounting
bracket and turn the indicator over so
that the display is facing away from you.
3. Remove the four (4) Phillips screws
securing the back panel to the main Push in
housing. and lift
here.
4. To install or replace the batteries, lift the
rear panel from the main housing and
turn it over so the back is facing away
Figure No. 3
from you, exposing the battery holder.
5. Next, remove the battery holder cover by
pushing in on the tab and lifting it up.
Refer to Figure No. 3. + + +
- - -
6. If installing new batteries, referring to
Figure No.4 and the polarity markings
- - -
located in the battery holder, install 6 new + + +
“AA” size batteries in the battery holder.
See Figure No. 5.
7. If replacing the batteries, remove all 6
batteries from the battery holder, and
then referring to Figure No.4 and the
polarity markings located in the battery Figure No. 4
holder, install 6 new “AA” size batteries in
the battery holder. See Figure No. 5.
8. After placing all 6 batteries in the battery
holder, replace the battery cover.
9. Turn the main housing over (display
facing up) and press the ON/OFF key.
10. If the display turns on, the batteries have
been installed correctly. If not, remove
the battery cover, and check for one or
more improperly positioned batteries.
11. Next, make certain no cables or wires are
exposed between the main housing and Figure No. 5
the rear panel, and then place the rear panel onto the main housing.
12. Secure the rear panel to the main housing with the four (4) Phillips screws removed earlier,
torqueing them to 20 inch-pounds (2.26 newton-metre). The Model 185B is ready for
normal operations.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 7

Load Cell Cable Connection
The following instructions describe the load cell connection through a standard gland
connector. Refer to Figure No. 2 for illustration of connector layout.

1. Remove the four (4) Phillips screws securing the back panel to main housing, and then
loosen the center gland connector for the load cell cable. Refer to Figure No. 2 for
illustration of connector layout.
2. Slip the single cable from the load cell or load cell junction box through the gland connector
and into the enclosure.
3. Remove 2" (50mm) of the outer insulation jacket, 2”/50mm
then remove 1/4" (6mm) of insulation from each
of the 4 wires and shield (without sense leads) or
6 wires and shield (with sense leads). Refer to
Figure No. 6.
1/4”/6mm
4. Connect each of the wires to terminal block P2
referring to labels on circuit board for terminal
connections. Refer to Figure No. 7 for terminal
block location.
Figure No. 6
5. To terminate a wire, first press down on release
bar for the terminal, insert wire into terminal
opening then allow release bar to return to its Press Down Here
original position, locking wire in place. Repeat
procedure until all of wires are in place.
6. Attach the included tubular snap-on ferrite core to
the outer insulation jacket inside the enclosure
near the end of the jacket. Make sure sufficient
pressure is applied to completely latch the core
to the cable. See Figure No. 8.

Tubular Snap-on
Ferrite Core Load Cell Insert Wire
Cable
Figure No. 7

Figure No. 8

LOAD CELL TERMINAL BLOCK P2

TERMINAL NO. Function TERMINAL NO. Function
1 – +EXC + EXCITATION 5 – -SIG - SIGNAL
2 – +SEN + SENSE¾ 6 – -SEN - SENSE¾
3 – +SIG + SIGNAL 7 – -EXC - EXCITATION
4 – SHLD SHIELD (Connect the load cell cable shield wire here).

¾
NOTE: If the sense leads are NOT used, you must install plug-in jumpers at J1 and J2
adjacent to the terminal block. These jumpers attach the sense leads to the excitation leads.
If sense leads ARE used (as in motor truck scales), these plug-in jumpers should be
positioned on one plug-in pin only or removed and stored for later use (see Figure No. 11).

Load Cell Connections with Over 30 Feet of Cable

For installations with over 30 feet (9 meters) of cable between the indicator and the load cells,
sense wires should be used. The sense wires must be connected between the +SENS, -SENS
terminals on the indicator and the +EXCITATION, -EXCITATION wires of the load cells or the
+SENS, -SENS terminals of the load cell trim board or the section seal trim board.

8 8400-0181-OM Rev E x 185 and 185B Installation & Technical

Scale End Load Cell Cable Ferrite Core
The included round snap-on ferrite core must be attached to the load cell cable near the scale
end of the cable. The ferrite core must be attached to the cable with one turn as shown in
Figure No. 9. Wrap the load cell cable around one side of the core, and then snap it closed.
Make sure sufficient pressure is applied to completely latch the core to the cable.

Front View
Round Snap-on Round Snap-on
Back of Scale Ferrite Core Ferrite Core

Load Cell Cable

Wrap one turn of load cell

cable around ferrite core.

Figure No. 9

Serial I/O Cable Installation

The Model 185 and 185B may be connected to a printer to record weight and associated data
or it may be connected to a remote display or to a computer for transmission of weight data.
The weight data, may be transmitted on demand (pressing the PRINT key or on receipt of a
command from the computer). Refer to the Setup, SIO Serial I/O section of this manual.

1. Remove the four (4) Phillips screws securing the back panel to main housing, and then
loosen the right gland connector for the serial cable. Refer to Figure No. 2 for illustration of
connector layout.
2. Slip the serial cable through the gland connector and into the enclosure.
3. Remove 2" (50mm) of the outer insulation jacket then
remove 1/4" (6mm) of insulation from each of the
wires (refer to Figure No. 6). Tighten
4. Connect each of the wires to the Serial Data terminal Screw
block (P6) referring to Figure No. 11 for terminal
block locations.
5. To terminate, make sure the terminal screw is
backed off enough, insert the wire into the opening,
then tighten the screw. Repeat the procedure until all
of the wires are in place. Insert
Wire
Figure No. 10

8400-0181-OM Rev E x 185 and 185B Installation & Technical 9

Main PCB and Jumpers
NOTE: Loosen the four captive screws securing the rear housing to the front housing, and
remove the rear housing to access the jumpers.

J1 J2 J3
+SEN -SEN CAL

Figure No. 11

J3 - CALIBRATION JUMPER
Jumper J3 must be installed to operate the indicator. To begin the setup and calibration
procedure, J3 must be removed and re-installed with the indicator powered on.

J1 and J2 - SENSE JUMPERS

If sense leads are NOT used, you must install plug-in jumpers at J1 and J2 (adjacent to the P2
connector). These jumpers attach the sense leads to the excitation leads. If sense leads ARE
used, these plug-in jumpers should be positioned on one plug-in pin only or removed and
stored for later use.

Re-Installing the Rear Panel

After all terminations have been made:
1. Remove the excess cable from the indicator enclosure and securely tighten each of the
cable gland connectors.
y Do not over-tighten these connectors but make certain they are snug.
y DO NOT USE TOOLS! Finger-tighten only!
2. Make certain no cables or wires are exposed between the main housing and rear
panel, and then place the rear panel onto the main housing.
3. Secure the rear panel to the main housing with the four (4) Phillips screws removed
earlier, torqueing them to 20 inch-pounds (2.26 newton-metre).

10 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 KEYPAD FUNCTIONS
The Model 185 and 185B Weight Indicators are equipped with a 7-key keypad. The keypad is
used to enter commands and data into the indicator. This section describes each key along
with its normal function. It is helpful to refer to the actual indicator while reading this section.

Figure No. 12

The membrane keypad is not to be operated with pointed objects (pencils,

pens, fingernails, etc.). Damage to keypad resulting from this practice is NOT
covered under warranty.

ON/OFF
Pressing this key when the indicator is off will apply power to the indicator.

Pressing this key when the indicator is on will turn the indicator off.

The following key functions are available if the 185 or 185B are functioning as a weight
indicator and not as a remote display.

ZERO
Pressing this key will perform a zero-load adjustment. The adjustment will not
take place unless the weight display is stable. There is a setup option to limit
the amount of adjustment to plus or minus two percent of scale capacity.

TARE  (Enter)
Pressing this key will set the tare weight to the current gross weight. The
display indication will switch to net weight display mode if the tare weight is
not zero. The weight display must be stable for the operation to occur.

NET/GROSS
If the tare weight is greater than zero, pressing this key will toggle between
the gross and net weight display modes.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 11

 UNITS/W W (Left Arrow)
If more than one weighing unit was selected in setup, pressing this key will
toggle between the selected weighing units.

Fn/S (Up Arrow)

If the tare weight is greater than zero, pressing this key followed by the TARE
key will briefly display the tare weight.

See the PIECE COUNT, SETUP REVIEW, and DISPLAY MILLIVOLTS

sections for other uses for this key.

PRINT
If continuous serial output was not selected in setup, pressing this key will
initiate the transmission of ASCII data via the serial port.

NOTE: The indicator will not respond to the print command unless the weight
display is stable. If the gross weight is being displayed, only the gross weight
will be printed. If the net weight is being displayed, the gross, tare, and net
weights will be printed.

12 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 ANNUNCIATORS
The Model 185 Weight Indicator is equipped with annunciators that are turned on to indicate
that the display is in the mode corresponding to the annunciator label or that the status
indicated by the label is active. This section describes each annunciator.

Symbol Name Description

Æ0Å
Å ZERO This annunciator is turned on to indicate that the weight
displayed is within ± 1/4 division of true zero.
[\ STABLE The stable annunciator will be on when the weight is
stable to within the limits established during setup.
G GROSS This annunciator is turned on to show that gross weight
is displayed. Gross weight will be displayed when no
tare weight is stored.
" NET This annunciator is turned on when the displayed
weight is Net weight (Gross weight less Tare weight).
T TARE This annunciator is turned on to show that the displayed
weight is the tare weight.
lb pounds This annunciator is located to the right of the weight
display and is turned on to show that the displayed
weight unit is pounds.
oz ounces This annunciator is located to the right of the weight
display and is turned on to show that the displayed
weight unit is ounces.
kg kilograms This annunciator is located to the right of the weight
display and is used to indicate that the displayed unit of
weight measurement is kilograms.
g grams This annunciator is located to the right of the weight
display and is used to indicate that the displayed unit of
weight measurement is grams.
 COUNT This annunciator shows that the display is in the Count
mode, and the value displayed is in pieces (the count
quantity) and not weight.
 FINE SPAN This annunciator shows that the indicator is in the Fine
Span Adjustment mode of setup.
` Battery Status The battery status indicator will be displayed on the
Model 185B when batteries are installed. The number
of bars indicates the level of charge.
Note that as the battery approaches full discharge, the
outline of the battery will start to flash.
NOTE: When the AC power adapter is connected to the
indicator and is charging the batteries, the charge level
status bars will scroll.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 13

14 8400-0181-OM Rev E x 185 and 185B Installation & Technical
 SETUP AND CALIBRATION
Your 185 or 185B Weight Indicator has been thoroughly tested and calibrated before being
shipped to you. If you received the indicator attached to a scale, calibration is not necessary. If
the indicator is being connected to a scale for the first time or recalibration is necessary for
other reasons, proceed as indicated.

Calibration of the indicator is accomplished entirely

by the keypad. To enter setup and calibration, the
calibration jumper must be removed and re-installed
while the indicator is on. The calibration jumper is
located on the main printed circuit board. Refer to
Figure No. 13 for the location of the jumper. Loosen
the four (4) Phillips screws securing the rear
housing to the front housing, and remove the rear J3
CAL
housing to access the calibration jumper.

During the setup and calibration process, it will be Figure No. 13

necessary to enter operational parameters via the indicator’s keypad.
x When a prompt for a value is displayed, press the TARE  key to display the current setting.
x Pressing the TARE  key will cause the data entered or displayed to be retained and the
indicator to advance to the next prompt.
x The functions of numeric keys are replaced by using the UNITS/W and the Fn/Ÿ keys.
x The cursor location is identified by the blinking character and can be advanced to the left to
the next position by pressing the UNITS/W key.
x Pressing the Fn/Ÿ key will change the blinking character to the next value. Continue to press
this key to "toggle" between the different available values for the setup parameter.
x Pressing the Fn/Ÿ key when a setup parameter (not a parameter value) is displayed, will
"backup" to the previous prompt.

The membrane keypad is not to be operated with pointed objects (pencils,

pens, fingernails, etc.). Damage to keypad resulting from this practice is
NOT covered under warranty.

Begin Setup and Calibration:

1. With the rear panel removed and the indicator ON, remove the calibration jumper J3.
2. The *&'$ prompt will be displayed.
3. Re-install the calibration jumper and press the TARE  key.
4. The 93-:8> prompt will be displayed.
5. The indicator is now ready for setup and calibration.

93-:8> (Remote Display)

This setting will turn the 185 or 185B indicator into a remote display using the serial port. If
the 185 or 185B is connected to a Cardinal 200 series indicator, it becomes a functional
remote keypad and display.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
(*` 06`
Remote Display Function Enabled Remote Display Function Disabled

If 93-:8>`(* is selected, an additional prompt, ;($> will be displayed.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 15

;=$> (Remote Serial Data Type)
This setting selects the format of data received at the serial port in remote display mode.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
0 = SMA - No remote key presses transmitted
1 = SB-400 - Transmits remote key presses
2 = SB-200 - Transmits remote key presses
3 = Toledo Short - No key presses transmitted
4 = Toledo Long - No key presses transmitted
5 = Rice Lake IQ355 - No key presses transmitted

After selecting the Remote Serial Data Type, the next prompt displayed will be 21<3>.
Proceed to the 2'3> (Serial Port Baud Rate) section to configure the baud rate, parity, and
stop bits for the remote display function.

'*> (Domestic or International)

This is the prompt to select whether the indicator is used in the USA (domestic) or outside the
USA (international).

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
'*>`(* (Domestic) '*>`"6 (International)
Overcapacity status is on when Overcapacity status is on when
Gross weight is greater than 104% Gross weight is greater than
of capacity. capacity plus 9 divisions.
Zero range is up to capacity when Zero range is limited to plus or
;9!>06. minus 2% of capacity.
Piece counting is disabled if Piece counting is enabled
!;>=*.
Power up zero is limited to plus or
minus 20% of capacity.

!&> (Legal For Trade)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
(*` 06`
Legal For Trade Not Legal For Trade

NOTE: When both !;>=4: and '*>=4::

Piece count operation will be disabled.
NOTE: When both !;>06 and '*>=4::
Piece count operation will be enabled.

16 8400-0181-OM Rev E x 185 and 185B Installation & Technical

'0-; > (Weighing Unit 1)
Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
1 = lb (Pounds) 2 = kg (Kilograms) 3 = oz (ounces) 4 = g (Grams)

)0;> (Interval Setting)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are 1, 2, 5, 10, 20, or 50.

3$$> (Decimal Point Position)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
0 = XXXXXX 1= XXXXX.X 2 = XXXX.XX 3 = XXX.XXX

$> (Capacity)
Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value. When
the desired value is displayed, the TARE  key to select the displayed value and proceed to
the next prompt.
Available values are 1 through 999999.

'0-;> (Weighing Unit 2)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
0 = Disabled 1 = lb (Pounds) 2 = kg (Kilograms) 3 = oz (ounces) 4 = g (Grams)

NOTE: The selection for '0-; cannot be the same as '0-; . In addition, for
some settings of -0; (interval) and 388 (decimal point position), not all unit
combinations are available.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 17

!> (Calibration)
With the display showing !>, press the TARE  key. The display will show 06. If the scale
has already been calibrated and you do not wish to calibrate again, press the TARE  key to
keep the current calibration.

To begin calibration, press the Fn/Ÿ key to select (*, and then press the TARE  key. The
display will show ! >.

! > – First Calibration Weight

This is the first of two calibration weights. This weight could be ZERO (NO LOAD) or the
TEST WEIGHTS (TEST LOAD).
x Press the TARE  key.
x Use the UNITS/W and the Fn/Ÿ keys to set the display to the weight on the scale
platform.
x Make sure the platform is stable, and then press the TARE  key.
x Starting at the left and advancing right, a series of dashes will appear on the display.
The dashes will then disappear, starting at the left and proceeding to the right. The
display will change to show !>.

!> - Second Calibration Weight

This is the second of two calibration weights. If the first weight was ZERO (NO LOAD),
then this weight must be the TEST WEIGHT (TEST LOAD). If the first weight was the
TEST WEIGHT (TEST LOAD), then this weight must be ZERO (NO LOAD).
x Press the TARE  key.
x Use the UNITS/W and the Fn/Ÿ keys to set the display to the weight on the scale
platform.
x Make sure the platform is stable, and then press the TARE  key.
x Starting at the left and advancing right, a series of dashes will appear on the display.
The dashes will then disappear, starting at the left and proceeding to the right. The
display will change to show ;91>.

IMPORTANT! During the time the dashes are appearing on the display, make
sure the loaded (or empty) scale is stable.

;9> (Zero Tracking Range)

Zero tracking range is a value in scale divisions that will be automatically zeroed off.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are 0 (disables zero tracking), 0.5, or 1 through 9.
NOTE: In Legal For Trade applications, the Zero Tracking Range should be set in
accordance with weights and measures regulations.

18 8400-0181-OM Rev E x 185 and 185B Installation & Technical

;9!> (± 2% Zero Range)
Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
;9!>=4: ;9!>06
Zero range limited to plus or minus Zero range up to capacity of scale
2% of scale capacity (no limit)

'0*> (Motion Range)

The motion range is the amount of weight change in scale increments allowed before the
unstable indication occurs.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value. When
the desired value is displayed, the TARE  key to select the displayed value and proceed to
the next prompt.
Available values are 1 through 99.
NOTE: In Legal For Trade applications, the Motion Range should be set in accordance with
weights and measures regulations.

*> (Stable Count)

The stable count sets the number of consecutive samples, which must be within the motion
range before the stable annunciator is turned on.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value. When
the desired value is displayed, the TARE  key to select the displayed value and proceed to
the next prompt.
Available values are 0 through 255.

!&> (Digital Filter Level Selection)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
0 = Minimal Filter 1 = Moderate Filter 2 = Heavy Filter 3 = Custom Filter

NOTE: If !&> (Custom Filter) is selected, two additional prompts will be displayed.

> (Filter Level)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value.
When the desired value is displayed, the TARE  key to select the displayed value and
proceed to the next prompt.
Available values are 1 through 99.
Where:
1 = least amount of filtering
99 = greatest amount of filtering

8400-0181-OM Rev E x 185 and 185B Installation & Technical 19

 %> (Break Range)
The break range is difference in divisions between consecutive samples, which will turn
filtering off. Filtering will resume when the difference between samples is less than the break
range. A smaller value for break range will result in a display that is more responsive to
changes in weight.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value.
When the desired value is displayed, the TARE  key to select the displayed value and
proceed to the next prompt.
Available values are 0 (disables break range) through 99.

!+> (Calibration Location Gravity Constant)

This is the acceleration of gravity value of the location where the scale was calibrated.
NOTE: Set to zero (0) if gravity constants are not going to be used.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value. When
the desired value is displayed, the TARE  key to select the displayed value and proceed to
the next prompt.

Consult the factory Tech Support for the appropriate value to enter. Note that if a nonzero
value is entered, then an additional prompt will appear.

6$+> (Operating Gravity Constant)

This is the acceleration of gravity value for the location where the scale will be operated.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value. When
the desired value is displayed, the TARE  key to select the displayed value and proceed to
the next prompt.

Consult the factory Tech Support for the Acceleration of Gravity value for your location.

$'#`> (Power-Up Zero Feature)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to save it.
Available values are:
(*` 06`
Automatic Re-Zero on Power-Up No Re-Zero on Power-Up

*>`(Automatic Shutoff)
Automatic Shutoff will automatically turn the indicator off (when it is not in use) after a period
of inactivity. To turn the indicator back on you must press the ON/OFF key.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are 0 (automatic shutoff disabled) through 9.

20 8400-0181-OM Rev E x 185 and 185B Installation & Technical

2'3> (Serial Port Baud Rate)
Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
12 = 1200 Baud 24 = 2400 Baud 48 = 4800 Baud
96 = 9600 Baud 19 = 19.2k Baud 38 = 38.4k Baud

$9;=> (Serial Port Parity)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
0 = NONE (No Parity) 1 = Odd Parity 2 = Even Parity

NOTE: When using the 185 or 185B as a Remote Display, selecting Odd or
Even parity for the 185 or 185B serial port, requires the local indicator to be
set to send 7 Data Bits.

*;6$> (Serial Port Stop Bits)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
1 = One stop bit 2 = Two stop bits

x If you selected 93-:8>(* (Remote Display Function Enabled), then the setup
process is complete. The indicator will return to the weight display mode. Remove
power from the indicator and re-assemble for use.
x If you selected 93-:8>06 (Remote Display Function Disabled), then the setup process
will continue with the 60;> prompt.

60;> (Continuous Output Serial Port)

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
(*` 06`
Continuous Output No Continuous Output

x If you selected 60;>(4: (Continuous Output), then the ;=$> prompt will be
displayed.
x If you selected 60;>06 (No Continuous Output), then the next prompt will be 6$
(End-of-Print Line Feeds).

8400-0181-OM Rev E x 185 and 185B Installation & Technical 21

;=$> (Continuous Output Format)
Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, press the Fn/Ÿ key to scroll through the available values.
When the desired value is displayed, press the TARE  key to select the displayed value
and proceed to the next prompt.
Available values are:
0 = SMA 1 = SB-400

6$> (End-Of-Print Line Feeds)

At the end of a data transmission to a printer, the indicator can transmit a pre-selected
number of line feed commands to space the paper in the printer to the desired position for
withdrawal or for the next print.

Press the TARE  key to view the current setting. To keep the current setting, press the
TARE  key again. Otherwise, use the Fn/S and UNITS/W keys to enter a new value. When
the desired value is displayed, the TARE  key to select the displayed value and proceed to
the next prompt.
Allowable values are 0 through 99.

Setup and Calibration Completed

The setup and calibration process have been completed. The indicator will reset and then
display weight. Remove power from the indicator and re-install the rear panel.

Re-Installing the Rear Panel

After the setup and calibration process has been completed:
1. Remove the excess cable from the indicator enclosure and securely tighten each of the
cable gland connectors.
y Do not over-tighten these connectors but make certain they are snug.
y DO NOT USE TOOLS! Finger-tighten only!
2. Make certain no cables or wires are exposed between the main housing and rear
panel, and then place the rear panel onto the main housing.
3. Secure the rear panel to the main housing with the four (4) Phillips screws removed
earlier, torqueing them to 20 inch-pounds (2.26 newton-metre).

22 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 FINE SPAN ADJUSTMENT
NOTE: The @*$0 mode requires a load of at least 10% of the scale capacity
be on the platform before adjustments can be made.

5@:810`(Fine Span Adjustment)

If the indicator is not in setup mode:
1. With the indicator ON, remove the rear panel, and then remove the calibration jumper J3.
2. The *&'$ prompt will be displayed.
3. Re-install the calibration jumper, and press the TARE  key.
4. The 93-:8> prompt will be displayed.
5. Press the TARE  key until the !> prompt is displayed.`
6. Remove and re-install the calibration jumper again.
7. The display will change to the 5@:810 prompt.
8. Press the TARE  key.
9. The display will change to show the scale weight. The  annunciator will be on to indicate
Fine Span Mode.
10. Apply a TEST LOAD of at least 10% of the scale capacity.
11. If the displayed weight does not match the TEST LOAD weight, press the Fn/Ÿ key to
increase the displayed weight or the UNITS/Ż key to decrease the displayed weight.
12. Press the TARE  key to return to the !> prompt.

If the indicator is in setup mode:

1. Press the TARE  key until the !> prompt is displayed.`
2. Remove and re-install the calibration jumper J3.
3. The display will change to the 5@:810 prompt.
4. Press the TARE  key.
5. The display will change to show the scale weight. The  annunciator will be on to
indicate Fine Span Mode.
6. Apply a TEST LOAD of at least 10% of the scale capacity.
7. If the displayed weight does not match the TEST LOAD weight, press the Fn/Ÿ key to
increase the displayed weight or the UNITS/Ż key to decrease the displayed weight.
8. Press the TARE  key to return to the !> prompt.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 23

 SETUP REVIEW
Some operational parameters may be changed without having to enter the setup and
calibration mode.
To Enter Setup Review:
1. Press the Fn/Ÿ key followed by the ZERO key.
2. The indicator will show the $'# prompt.
3. Refer to the Setup and Calibration section for information on how to change parameters.
The parameters in the setup review will be processed in the following sequence:
$'#> Enable or Disable automatic zero on power up.
*> Disable or select number of minutes for automatic shutoff timer.
'3> Select baud rate for serial port.
$9;=>` Select serial port parity
:;68>` Select stop bits for serial port
60;> Enable or Disable the continuous output.
&=84>` Select continuous output type
6$> Select the number of End of Print linefeeds printed.

IMPORTANT! Changes to the RS232 control settings '3>, $9;=>, or :;68>

requires power cycling (turning the indicator off and back on) to take effect.

24 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 SERIAL DATA FORMATS
Weight-On-Demand
If the Continuous Output for the serial port was not selected, 60;>06, then a computer
connected to the serial port can send a request for the 185 to transmit weight data. This is
known as Weight-On-Demand. There are two formats for weight on demand: ENQ and SMA
weight request.

ENQ Format
The host computer sends:
ENQ - (hex 05)
The 185 will respond:
<s><xxxxxx><d><_><uu><_><m><_><cc><_><cr>
where:
s= Sign "-" = negative, “ “ (space) for zero and above
xxxxxx.xxx = Weight Six digits
d= Decimal point Embedded in the weight, if enabled in setup
_ Space
uu = Units LB, KG, OZ, or G^, ^ = space
m= Mode G for gross or N for net
cc = Weight Status OC for overcapacity
MO for unstable
CZ for center of zero
EE for weight not displayed, or two spaces
cr = Carriage Return (hex 0D)

SMA Format
The host computer sends:
<lf> W <cr>
The 185 will respond:
<lf><s><r><n><m><f><xxxxxx.xxx><uuu><cr>
where:
lf = Line Feed (hex 0A)
s= Flag Z for center of zero
O for overcapacity
U for negative overcapacity
e for weight not displayed, or space
r= Range 1 (single range)
n= Mode G for gross, N for net
m= Motion M for motion, space for stable
f= Custom Flag Always a space
xxxxxx.xxx = Weight ten digits, including decimal point, right justified
uuu = Units lb^, kg^, oz^, or g^^, ^ = space
cr = Carriage Return (hex 0D)

8400-0181-OM Rev E x 185 and 185B Installation & Technical 25

Continuous Output
If the Continuous Output for the serial port was selected #0;>=4:, then the 185 will transmit
weight repeatedly. The format is determined by the setting of the ;=$> parameter:
0 = SMA 1 = SB-400

SMA Format
<lf><s><r><n><m><f><xxxxxx.xxx><uuu><cr>
where:
lf = Line Feed (hex 0A)
s= Flag Z for center of zero
O for overcapacity
U for negative overcapacity
e for weight not displayed, or space
r= Range 1 (single range)
n= Mode G for gross, N for net
m= Motion M for motion, space for stable
f= Custom Flag Always a space
xxxxxx.xxx = Weight ten digits, including decimal point, right justified
uuu = Units lb^, kg^, oz^, or g^^, ^ = space
cr = Carriage Return (hex 0D)

SB-400 Format
<s><xxxxxx><d><_><uu><_><m><_><cc><_><cr>
where:
s= Sign "-" = negative, “ “ (space) for zero and above
xxxxxx.xxx = Weight Six digits
d= Decimal point Embedded in the weight, if enabled in setup
_ Space
uu = Units LB, KG, OZ, or G^, ^ = space
m= Mode G for gross or N for net
cc = Weight Status OC for overcapacity
MO for unstable
CZ for center of zero
EE for weight not displayed, or two spaces
cr = Carriage Return (hex 0D)

26 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 PIECE COUNTING
The piece-counting feature can be used to convert weight into the number of pieces on the
scale.

NOTE: This function is not available when !;>=4: (Legal-For-trade) and '*>(*
(Domestic) has been selected in setup.

To enter count mode:

1. Press the Fn/Ÿ key twice.
2. If the average piece weight has been previously calculated, the display will show
the number of pieces on the scale.
3. If an average piece weight has not been previously calculated, the display will
change to 33>`.
4. To change the sample size, press the Fn/Ÿ key repeatedly to scroll through the
following sample sizes: 5, 10, 25, 50, and 75.
5. Alternatively, press the UNITS/Ż key and a digit will begin to flash. Press the
Fn/Ÿ key to change the digit. Press the UNITS/Ż key to select a different digit to
change.
6. Add the selected quantity of pieces to the scale and press the TARE  key.
7. The average piece weight will be calculated and the display will change to show
the count of pieces on the scale.

To calculate a new average piece weight:

1. Press the Fn/Ÿ key.
2. The display will change to 33>`.
3. To change the sample size, press the Fn/Ÿ key repeatedly to scroll through the
following sample sizes: 5, 10, 25, 50, and 75.
4. Alternatively, press the UNITS/Ż key and a digit will begin to flash. Press the
Fn/Ÿ key to change the digit. Press the UNITS/Ż key to select a different digit to
change.
5. Add the selected quantity of pieces to the scale and press the TARE/Enter key.
6. The display will change to show the count of pieces on the scale.

x Press the PRINT key to transmit the number of pieces through the serial port.
x Press the NET/GROSS key to return to weight display mode.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 27

 ERROR CODES
The Model 185 Weight Indicator is equipped with software that indicates when an error in the
operation takes place. The following, lists the error codes displayed by the indicator along with
their meaning. Should you encounter an error code please refer to this list for the cause.

Error Cause (A.) and Corrective Action (B.)

3`99 A. Analog to digital circuit has failed.
B. Consult scale service representative.
!2;0` A. Displayed on power-up if the calibration jumper has been removed
from the PC board.
B. Replace calibration jumper.
605-+ A. Calibration required.
B. Calibrate the scale with test weights.
99`` A. The analog input is off scale at the upper end of the input range.
B. Check wiring and load cell.
99`!` A. The analog input is off scale at the lower end of the input range.
B. Check wiring and load cell.
9969 A. Attempt to perform an illegal function:
1. Attempting to zero scale when there is motion present or the scale
is over capacity.
2. Attempting to zero scale when Gross weight is out of ± 2% Zero
Range (;9!>=*).
3. Attempting to print when scale is over capacity.
4. Attempting to tare scale when there is motion present or the
Gross weight is below zero or over capacity.
6$ A. The load on the scale exceeds the capacity of the scale.
B. Remove the excess load.
@6@` A. The indicator is trying to display a positive number greater than
99,999 or a negative number greater than -99,9999.
B. Return to Gross weight mode and review the Tare weight. Might
indicate incorrect calibration.
'0*; A. Motion is present on power up, while attempting to zero the weight
display, or when a print was initiated.
B. Wait for a stable weight indication.
!62;` A. This message is used with the battery operation in the Model 185B to
indicate the battery voltage is too low for accurate weighing and will
turn ON briefly before shutting off the indicator.
B. You will be unable to turn the indicator back on until the Alkaline
batteries have been replaced or if using Ni-Cad or NiMH batteries,
the AC power adapter is connected to recharge the batteries.
@@@@@@` Remote display function is enabled and no serial data is detected.
6` Displayed to indicate the 185 and 185B are turning off.

MILLIVOLTS DISPLAY
As a diagnostic function, the Model 185 Weight Indicator can display the millivolts reading at
the load cell input. To display millivolts, proceed as follows:
1. Press the Fn/Ÿ key followed by the UNITS/Ż key.
2. The indicator will show the millivolts reading.
3. Press the TARE  key to return to the weight display.

28 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 EVENT COUNTERS
The Cardinal Model 185 Weight Indicator has been designed with a Category 1 Audit Trail type
of security seal with two event counters. One counter is for calibration parameters and one is
for configuration parameters. Each event counter can log up to 10,000 events. The data is
maintained in non-volatile memory and can be viewed by a Weights and Measures inspector.

The calibration event counter (!>) will increase by one when Setup mode is exited after
changing any calibration parameter (for example, fine span adjustment).

The configuration event counter (+>) will increase by one when Setup mode is exited after
changing any of the following parameters:
'*` Domestic or International
!;` Legal For Trade
'0-; ` Weighing Units 1
)0;` Interval Setting
3$$` Decimal Point Position
$` Capacity
'0-;` Weighing Units 2
;9` Zero Tracking Range
;9!` ± 2% Zero Limit
'0*` Motion Range
*` Stable Count
!;` Digital Filter Level
` Filter Level
9` Break Range

To Display the Event Counters:

S key.
1. With the indicator ON, press the Fn/S
2. The display will show 0>.
3. Press the NET/GROSS key.
4. The display will change to show !>.
5. Press the TARE  key.
6. The display will change to show the calibration event counter.
7. Press the TARE  key.
8. The display will change to show +>.
9. Press the TARE  key.
10. The display will change to show the configuration event counter.
11. Press the TARE  key.
12. The indicator will return to the normal weight display.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 29

 SECURITY SEAL INSTALLATION
If your metrology laws require the use of physical sealing, a lead and wire security seal can be
installed on the Model 185 and 185B Weight Indicators to prevent access to the calibration
jumper (located on the main printed circuit board) from being removed and re-installed to enter
setup and calibration thereby preventing unauthorized access to the calibration adjustments.

NOTE: In order to install the lead and wire security seal, two enclosure screws must be
replaced with two locking screws. They are available from the Cardinal/Detecto Parts
Department. The part numbers are:
8400-0179-08, 185 LOCKING SCREW, (2) REQUIRED

To install a lead and wire security seal, follow the steps provided and refer to Figures No. 14,
and 15 below for details on the installation of the seal.
1. Remove two of the round-head machine screws securing the back enclosure to the front
enclosure.
2. Replace the two screws removed with the 185 Locking Screws.
3. Make certain the 185 Locking Screws are securely tightened before proceeding.
4. Thread the sealing wire through the hole in the 185 Locking Screws.
5. Pull the wire tight and install the lead seal.
6. The 185 Locking Screws cannot be removed without damaging the lead wire seal.

Figure No. 14

Figure No. 15

30 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 BEFORE YOU CALL FOR SERVICE
The Model 185 and 185B Weight Indicator has been designed to provide you with years of
trouble-free operation. However, should you experience a problem, please refer to the
troubleshooting guide below before you call for service. The following describes several types
of symptoms along with suggested remedies.

PROBLEM POSSIBLE SOLUTIONS

Display does not turn on AC operation:
Is the AC power cord fully inserted into the wall
receptacle?
Check wall receptacle for proper AC power.
Try another electrical appliance in the same
receptacle, does it work?
Check the circuit breaker.
Has there been power failure?

Battery operation:
Check if battery is installed correctly.
Is battery discharged? Replace or recharge.
Rechargeable type batteries will If changing from Alkaline batteries to rechargeable
not charge batteries, be sure to completely power off the indicator
first. If this step is not performed, the batteries will not
charge.
Incorrect weight displayed Has the indicator been calibrated?
Make sure that the scale platform isn't touching an
adjacent object.
Check the load cell connector wiring.
If using four (4) wire load cells, make sure the sense
lead jumpers (J1 & J2) are installed.
Have proper operation procedures been followed?
Indicator will not display weight Refer to Error Codes section and make certain that the
6$ message is not displayed. If so, and the scale is
not loaded, perform the calibration sequence.

CARE AND CLEANING

x DO NOT submerge indicator in water.
x DO NOT use acetone, thinner or other volatile solvents for cleaning.
x DO NOT expose equipment to temperature extremes.
x DO NOT place equipment in front of heating/cooling vents.
x DO clean the indicator with a damp soft cloth and mild non-abrasive detergent.
x DO remove power before cleaning with a damp cloth.
x DO provide clean AC power and adequate protection against lightning damage.
x DO keep the surroundings clear to provide clean and adequate air circulation.

8400-0181-OM Rev E x 185 and 185B Installation & Technical 31

 PARTS IDENTIFICATION – 185
185 Front Panel View

185 Back Panel View

32 8400-0181-OM Rev E x 185 and 185B Installation & Technical

185 Front Inside View

8400-0181-OM Rev E x 185 and 185B Installation & Technical 33

185 Parts Identification
ITEM QTY. DESCRIPTION
8400-0160-08 1 ENCLOSURE, REAR, 185 INDICATOR
8400-0159-08 1 ENCLOSURE, FRONT, 185 INDICATOR
8400-0165-08 1 GIMBAL, 185
8400-0166-08 2 185 HIRTH JOINT PLASTIC, 1"DIA, 15 DEG. STEPS
6540-1052 2 ENCLOSURE KNOB 1.25 DIA W/10-32X1/2 STUD
6650-0123 1 O-RING 7 1/4 ID X 3/32 #168
6610-2248 2 CONN GLAND .187-.312 GRIP .599 MTG BLK UL APPROVED
6540-1104 1 HOLE PLUG, 0.343" X 0.187" X 1" LG, SILICONE RUBBER
8400-0162-0A 1 PC BOARD 185 CONTROLLER
6021-6017 4 SCW ROUND-HEAD BLUNT S.S. SHEET METAL #6X.25
6021-1226 4 SCW ROUND-HEAD MACHINE-SCW 10-32X1.25
8400-0161-08 1 KEYPAD, MODEL 185
8400-0183-0A 1 185 DC POWER CABLE ASSEMBLY
8400-0198-PS 1 SERIAL NUMBER TAG

8400-0182-0A* 1 185 POWER SUPPLY ASSEMBLY, 12V/1A, 100-240VAC INPUT

8400-0182-1A* 185 POWER SUPPLY ASSEMBLY 12V/1A, UNIVERSAL

1
VOLTAGE / INTERNATIONAL PLUG AC SUPPLY
FERRITE SPLIT/CLAMP ON CORE 190 OHMS@100MHZ, 5mm
6650-0021* 1
ID, 13mm OD, 25.5mm L
FERRITE SPLIT/CLAMP ON CORE 120 OHMS @ 100MHZ,
6650-0024* 1
0.591in ID, 1.134in OD, 0.606in L

* NOT SHOWN

34 8400-0181-OM Rev E x 185 and 185B Installation & Technical

 PARTS IDENTIFICATION – 185B
185B Front Panel View

185B Back Panel View

8400-0181-OM Rev E x 185 and 185B Installation & Technical 35

185B Front Inside View

185B Back Inside View

36 8400-0181-OM Rev E x 185 and 185B Installation & Technical

185B Parts Identification
ITEM QTY. DESCRIPTION
8400-0160-08 1 ENCLOSURE, REAR, 185 INDICATOR
8400-0159-08 1 ENCLOSURE, FRONT, 185 INDICATOR
8400-0165-08 1 GIMBAL, 185
8400-0166-08 2 185 HIRTH JOINT PLASTIC, 1"DIA, 15 DEG. STEPS
6540-1052 2 ENCLOSURE KNOB 1.25 DIA W/10-32X1/2 STUD
6650-0123 1 O-RING 7 1/4 ID X 3/32 #168
6610-2248 2 CONN GLAND .187-.312 GRIP .599 MTG BLK UL APPROVED
6540-1104 1 HOLE PLUG, 0.343" X 0.187" X 1" LG, SILICONE RUBBER
6021-6017 4 SCW ROUND-HEAD BLUNT S.S. SHEET METAL #6X.25
6021-1226 4 SCW ROUND-HEAD MACHINE-SCW 10-32X1.25
8400-0161-08 1 KEYPAD, MODEL 185
8400-0193-0A 1 BATTERY HOLDER POWER CABLE, 185B
8400-0162-0A 1 PCBOARD 185 CONTROLLER
8400-0194-0A 1 185B DC POWER CABLE ASSEMBLY
8555-C216-2A 1 PCB ASSY 185B BATTERY CHARGER
6021-1130 2 SCW FLAT-HEAD. MACHINE-SCW 06-32x.250
8400-0192-0A 1 CHARGER TO CONTROLLER POWER CABLE, 185B

8400-0182-0A* 1 185 POWER SUPPLY ASSEMBLY, 12V/1A, 100-240VAC INPUT

8400-0182-1A* 185 POWER SUPPLY ASSEMBLY 12V/1A, UNIVERSAL

1
VOLTAGE / INTERNATIONAL PLUG AC SUPPLY
FERRITE SPLIT/CLAMP ON CORE 190 OHMS@100MHZ, 5mm
6650-0021* 1
ID, 13mm OD, 25.5mm L
FERRITE SPLIT/CLAMP ON CORE 120 OHMS @ 100MHZ,
6650-0024* 1
0.591in ID, 1.134in OD, 0.606in L

* NOT SHOWN

8400-0181-OM Rev E x 185 and 185B Installation & Technical 37

38 8400-0181-OM Rev E x 185 and 185B Installation & Technical
8400-0181-OM Rev E x 185 and 185B Installation & Technical 39
 Cardinal Scale Mfg. Co.
102 E. Daugherty, Webb City, MO 64870 USA
Ph: 417-673-4631 or 1-800-641-2008
Fax: 417-673-2153
www.cardinalscale.com

Technical Support: 1-866-254-8261

Printed in USA E-mail: tech@cardet.com
40 Rev E 01/20 Rev E x 185 and 185B Installation & Technical
8400-0181-0M8400-0181-OM