Operation Manual

Model：DC-788

Edition Date Remark

1st 2004.12
 Shanghai Teraoka Electronic Co., Ltd
Jin Shan Ting Lin Industrial Estate, Shanghai, China Postcode：201505
TEL：+86-21-5723-4888 FAX：+86-21-5723-9330 E-mail: steservice@digi-scale.com
 Contents
1. Summarize.................................2
1.1． General Layout.........................................................................................................................2
1.2.　 Purpose.....................................................................................................................................3
1.3.　 Features....................................................................................................................................3
1.4.　 Operating Conditions............................................................................................................4
1.5.　 Charging Conditions (for Rechargeable battery only).................................................4
1.6.　 Analog Specification.............................................................................................................4
1.7.　 Display and Indicators..........................................................................................................4
1.8.　 Dimensions..............................................................................................................................5
1.9.　 External Connectors..............................................................................................................5
1.10. Capacity/Minimum Graduation/Tare range......................................................................6
1.11.　Keysheet Layout....................................................................................................................6
1.12.　Key Functions........................................................................................................................7

2．Maintenance Mode........................9
2.1 Specification Enter (141)........................................................................................................9
3.1. ON/OFF.....................................................................................................................................13
3.2. Tare Subtraction.....................................................................................................................13
3.3. Unit Weight Entry Operation...............................................................................................14
3.4. Insufficient Sampling Weight Operation..........................................................................15
3.6. Net/Gross Operation.............................................................................................................17
3.7. kg/lb Operation.......................................................................................................................18
3.8. Select 1st Scale or 2nd Scale Operation.............................................................................18
3.9. Item Code Call Up..................................................................................................................18

4．Operations In Program Mode.............20

4.1. Program Item Code................................................................................................................20
4.2. Delete Item Code in Memory...............................................................................................21
4.3. Review Item Code..................................................................................................................24
4.4. Program Setpoint to Operate all Items.............................................................................24
4.5. Date and Time.........................................................................................................................24

5．Error Massage List........................25

1
1. Summarize
1.1．General Layout

2
1.2.　Purpose
To develop a low cost LCD display counting scale which caters to OIML, UL, EU Standard and meets
requirement of major customers.

1.3.　Features
* Low cost counting scale.
* Quick response to weight changes.
* Capacity : 500g; 1kg; 2.5kg; 5kg; 10kg; 25kg; 50kg
* Resolution: Display Resolution 1/10,000.
Internal Resolution 1/1000,000.
* Rechargeable Battery backup for 24 hours of continuous usage (optional).
* Intelligent power control
A. When AC power is available, scale can only use AC power whatever rechargeable battery is installed or
not.
When AC power is shut off, scale will use battery automatically.
B. When scale works on rechargeable battery, if the battery is weak, the battery indictor will light up.
When the power from battery becomes low such that the scale cannot compute accurately, all Displays
will shut off except the Battery indicator. The power is then shut off completely after 1 minute.
C. Scale detects rechargeable battery voltage and control battery charge process automatically.
The battery charge indicator lights up when rechargeable battery is being charged.
* Calibration by software.
* Waterproof keyboard and splash proof housing.
* 24 switch keys
- ON/OFF key.
- 10 Numeric keys.
- 13 Operational keys.
* Large platter : 340 x 243 mm.
* Plastic housing.
* 25 digits with 19 segments Back-light LCD Operator displays.
* RS-232C interface for data communication and printer connection.
- Gross Weight, Tare Weight, Net Weight, Unit Weight, Count, PLU code, Product Description, Product
Lot No., Accumulated count.
* Two scale channels, one for built-in platform, and another for remote platform.
* External printer connectible (RS-232C)
- Label printer : DIGI GP-460R
- Barcode printer : ZEBRA LP-2844
- Receipt printer : EPSON TM-U200
- Slip Printer : EPSON TM-U295
* 100 PLU, each PLU consists of Unit Weight, Tare Weight, Product Description (32 characters), Product Lot No.
(32 characters), Set point(Hi/OK/Low).

3
1.4.　Operating Conditions
* Power Source : AC 240/230/220V, 117/100V.
: DC 6V 5Ah rechargeable battery (optional).
* Operating Temperature : -10℃ ~ +40℃ (OIML).
* Operating Humidity : 15 ~ 85% RH.
* Power Consumption : 18W when using AC power.
: 1W when using rechargeable battery.

1.5.　Charging Conditions (for Rechargeable battery only)

* Power Source : AC 240/230/220V, 117/100V.
* Charge Current : 800 mA.
* Charge Time : 8 - 10 hours.

1.6.　Analog Specification
* Input sensitivity : 1mV/V.
* Zero adjust range : 0 ± 5mV.
* Zero balance range : 0 ± 0.5mV.
* L/C applied voltage : DC 5V.
* Speed of A/D conversion : 30 times/sec.
* Internal Resolution : 1000,000.

1.7.　Display and Indicators

Type A (Standard type with NET/GROSS shift function)

Type B (Special type with kg/lb shift function)

Type B (Special type with WT/100 or APW function)

4
1.7.1.　Display Specifications
* Tare Weight Display : 5 digits.
* Weight Display : 5 digits.
* Unit Weight Display : 5 digits.
* Quantity Display : 7 digits.

1.7.2.　Indicators
* ZERO : On when zero point is adjusted and weight is stable.
* NET : On when tare subtraction is performed.
* kg : On when the item is weighed in kg unit with [kg/lb] key pressed.(type B version only)
* lb : On when the item is weighed in lb unit with [kg/lb] key pressed. (type B version only)
* INSUFF : On when the net weight is below a specific percentage of capacity weight.
* GROSS : On when [Gross/Net] key is pressed. (type A version only)
*SCALE1 : On when the scale 1 is in use.
*SCALE2 : On when the scale 2 is in use.
* RECOMP : On when unit weight recomputing is enable.
* PROG : On when in the programming mode.
* WT/1000 : On when the display unit weight is 1000PCS base. (type B version only)
* APW : On when the display unit weight is one PCS base. (type B version only)
*Σ : On when quantity is accumulating.
*OUT : On when remove a quantity of parts to item inventory.
*IN : On when add a quantity of parts to item inventory.
* BATT : On when Battery is weak and needs to charge (only for rechargeable battery type).
* CHARGE : On when Battery is charging (only for rechargeable battery type).

1.8.　Dimensions
* Platter size : 340 x 243 mm.
* Overall size : 354 x 349 x 115 mm.

1.9.　External Connectors
* AC receptacle.
* RS-232C interface.
* 14 pin female amphenol for external loadcell

5
1.10.　Capacity/Minimum Graduation/Tare range
Capacity Minimum Graduation Tare Rang
500g 0.1g (1e = 200内码) 0 - 249.9g
1kg 0.2g (1e = 20内码) 0 - 0.4998kg
2.5kg 0.5g (1e = 200内码) 0 - 0.9995kg
5kg 1g (1e = 200内码) 0 - 2.499kg
10kg 2g (1e = 200内码) 0 - 4.998kg
25kg 5g (1e = 200内码) 0 - 9.995kg
1lb 0.0002 lb (1e = 200内码) 0 - 0.4998 lb
2.5 lb 0.0005 lb (1e = 200内码) 0 - 0.9995 lb
5 lb 0.001 lb (1e = 200内码) 0 - 2.499 lb
10 lb 0.002 lb (1e = 200内码) 0 - 4.998 lb
25 lb 0.005 lb (1e = 200内码) 0 - 9.995 lb
50 lb 0.01 lb (1e = 200内码) 0 - 24.99 lb

1.11.　Keysheet Layout
A Type

B Type

6
1.12.　Key Functions

ON/OFF key. Turn the power ON or OFF.

to Numeric keys. Input numerical value.

Decimal Point key. Set decimal point.

CLEAR key. Clear numerical values.

Sampling key. Used for computing unit weight by sampling.

TARE key. Set or clear tare value, Stores SPEC changes

RE-ZERO key. Resets weight display to zero.

TYPE A

PLU CODE key. Used to call out PLU data. Change In/OUT status.

MINUS key. Correct operation on products.

PLUS key. Used for accumulation.

Data Setting key. Set up SPEC data or clear TOTAL data. Print.

Select 1st Scale or 2nd Scale

MODE SET key. Used to enter programming mode from weighing mode.

NET/GROSS change key. Used to change display between Gross and Net.

7
 UNIT WEIGHT key. Used to set unit weight and display All digits of Unit
Weight.
TYPE B

PLU CODE key. Used to call out PLU data. Change In/OUT status.

MINUS key. Correct operation on products.

PLUS key. Used for accumulation.

Data Setting key. Set up SPEC data or clear TOTAL data. Print.

Select 1st Scale or 2nd Scale

MODE SET key. Used to enter programming mode from weighing mode.

kg/lb conversion key. Used to convert the weighing unit between kg and lb.

UNIT WEIGHT key. Used to set unit weight and display All digits of Unit
Weight.

8
2．Maintenance Mode
2.1 Specification Enter (141)
1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 - MEMORY
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
[RE-ZERO] [RE-ZERO] 88888 88888 88888 888888
[RE-ZERO] + [1] [4] [1] [RE-ZERO] + SPC00 0000 0000
Enter 1 4 1 while pressing. [RE-ZERO] [1] [4] [1]
'+' key only increase Specification. [+] SPC01 0000 0000
'-' key only decrease Specification. [-] SPC00 0000 0000
Only '1' & '0' are enable. [0] [1] [0] [0] SPC00 0000 0100
Cancel input [C] SPC00 0000 0000
[0] [1] [0] [1] SPC00 0000 0101
'*' to store Specification. [*] SPC01 0000 0000
[-] [-] SPC00 0101 0000
[+] [+] SPC01 0000 0000
Store SPECS to EEPROM & [T] 0.0 0 0 0.0 0 0 0 0
Escape to Weighing mode.

9
2.2 Specification List
SPEC NO. BIT 3 BIT 2 BIT 1 BIT 0
0 Auto Power-off function (for no key operation & weigh operation)

0000 - Auto power-off disable when scale is not in use

0001 - 3 minute
0010 - 10 minutes
0011 - 30 minutes
0100 - 1 hour
0101 - 3 hours
0110 ~ 1111 - Not used
(SP1_OFFT)
1
0 : Not used

2 Buzzer Error alarm Set point alarm

0 - On 0 - On 0 - On 0 : Not used
1 – Off 1 – Off 1 – Off
(SP1_BUZZ) (SP1_ALARM) (SP1_PALARM)
3 Unit weight base per Sampling time for Negative counting Re-zero function
1000PCS or 1PCS unit Weight
display calculation
0 - 1000PCS 0 - Allow 0 - Allow
1 –1PCS 0 - 10 times 1 – Inhibit 1 – Inhibit
(SP1_UW1D) 1 - 5 times (SP1_NCOUNT) (SP_RZF)
(SP1_STFUWC)
4 Order of month, date and year Set point type

00 - MM/DD/YY 00 - % quantity
01 - DD/MM/YY 01 - % Weight
10 - YY/MM/DD 10 - Quantity
11 - Not used 11 – Weight
(SP1_DATEO) (SP1_SPT)
5 Function of RS-232C interface Extent of insufficient samples

00 - PC 0 0 - 0.1 %
01 - Printer 0 1 - 0.2 %
10 - Not used 1 0 - 0.0 %
11 - Not used 1 1 : Not used
(SP1_RS232IF) (SP1_INSUFFRG)

10
SPEC NO. BIT 3 BIT 2 BIT 1 BIT 0
6 RTS/CTS Baud rate of RS-232C
handshaking of RS-
232C 000 - 1200 bps 100 - 19200 bps
001 - 2400 bps 101 - Not used
0 - On 010 - 4800 bps 110 - Not used
1 – Off 011 - 9600 bps 111 - Not used
(SP1_BAUD)
(SP1_RTS)
7 Stop bit of RS-232C Data length of RS- Parity of RS-232C
232C
00 - None
0 - 1 bit 0 - 7 bit 01 - Odd
1 - 2 bit 1 - 8 bit 10 - Even
11 - Not used
(SP1_STOP) (SP1_DLEN) (SP1_PAR)
8 RS-232C PC protocol

0000 - Inhibit data transfer

0001 - Standard stream type (Continuous output)
0010 - Standard manual type
0011 - Standard command type
0100 ~ 1111 - Not used.
(SP1MODE)
9 External printer type

0000 – No
0001 - DIGI GP460R (Label printer)
0010 - ZEBRA LP2844(Barcode printer)
0011 - Epson TMU200 or Star SP2320 (Tape printer)
0100 - Epson TM295 or Star SP298 (Ticket printer)
0101 – TVP1000(Barcode printer)
0110 ~ 1111 - Not used
(SP1PRINTER)
10 Interval of time out error of RS-232C Transmission Additional parity
condition of RS- code in text of RS-
00 - 1 second 232C 232C
01 - 3 second
10 - 5 second 0 - Weight stable 0 - No
11 - 10 second 1 – Unconditional 1 – Yes
(SP1TIME)
(SP1_COND) (SP1_APAR)

11
SPEC NO. BIT 3 BIT 2 BIT 1 BIT 0
11 Tare weight in text Unit weight in text of Gross weight in text Quantity in text of
of RS-232C RS-232C of RS-232C RS-232C

0 - No 0 - No 0 - No 0 - No
1 – Yes 1 – Yes 1 – Yes 1 – Yes
(SP1_TW) (SP1_UW) (SP1_GW) (SP1_TP)
12 DATE&TIME in text Header Code in text Weight range of data
of RS-232C of RS-232C output

0 - No 0 : Not used 0 - No 0 – Always

1 – Yes 1 – Yes 1 – Over 20e
(SP1_DTIME) (SP1_HEAD) (SP1_MINWTL)
13 External printer print format

000 - Default Format

0 : Not used 001 - Customer Format 1
010 - Customer Format 2
……
111 - Customer Format 7
(SP1PRINTER)

12
3．Operations in Weighing Mode
3.1. ON/OFF
1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 - MEMORY
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Display for 1.5 seconds. *Note1 [ON/OFF] 8888888888 88888 888888
Blank for 1.5 seconds.
Display for 1.5 seconds. 88888 88888 88888 888888
Blank for 1.5 seconds.
Weighing mode. 0.0 0 0 0.0 0 0 0 0
OFF [ON/OFF]
Note: 1) Power On Segment Check Style can be selected by setting SPEC08.0. In this example assume SPEC08.0 = 0.

3.2. Tare Subtraction

3.2.1. One Touch Tare Subtraction

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 - MEMORY
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Put tare (e.g. 30 g) on platter 0.0 0 0 0.0 3 0 0 0
Subtract the tare weight. [T] 0.0 3 0 0.0 0 0 0 0
Remove the tare weight 0.0 3 0 - 0.0 3 0 0 0
Clear the tare weight. [T] 0.0 0 0 0.0 0 0 0 0

3.2.2. Digital Tare Subtraction

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Key in the tare weight. (e.g. 50g). [0] [.] [0] [3] 0.0 3
Subtract the tare weight. [T] 0.0 3 0 -0.0 3 0 0 0
Clear the tare weight. [T] 0.0 0 0 0.0 0 0 0 0
Key in the tare weight. (e.g. 2kg). [2] 2
Subtract the tare weight. [T] 2.0 0 0 -2.0 0 0 0 0
Clear the tare weight. [T] 0.0 0 0 0.0 0 0 0 0

13
3.3. Unit Weight Entry Operation

3.3.1. By Sampling
1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Put 10 pieces of samples on platter 0.0 0 0 0.0 9 6 0 0
Compute unit weight. [Pcs] ----- ----- ----- ------
0.0 0 0 0.0 9 6 9.6 3 6 6 10
Clear unit weight. [C] 0.0 0 0 0.0 9 6 0 0
Put 15 pieces of samples on platter 0.0 0 0 0.1 4 4 0 0
Input sampling quantity. [1] [5] 15
Compute unit weight. [Pcs] ----- ----- ----- ------
0.0 0 0 0.0 9 6 9.6 3 2 6 15
Put some more pieces of samples on 0.0 0 0 0.1 9 2 9.6 3 2 6 20
platter (e.g. 5pcs)
Re-compute function enabled while
RECOMP lamp is on.
Re-compute unit weight. [Pcs] ----- ----- ----- ------
The accuracy of unit weight can be 0.0 0 0 0.1 9 2 9.6 2 9 8 20
improved after re-computing.

3.3.2. Digital Unit Weight Operation

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Put weight on platter 0.0 0 0 0.5 2 8 0 0
Key in unit weight. [5] [.] [2] [5] 5.2 5 7 8
[7] [8]
Set unit weight. [UNIT 0.0 0 0 0.5 2 8 5.2 5 7 8 100
WEIGHT]
Clear unit weight. [C] 0.0 0 0 0.5 2 8 0 0

14
3.4. Insufficient Sampling Weight Operation

3.4.1. Add Samples

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Put 10 pieces of samples on platter 0.0 0 0 0.0 1 6 0 0
Add samples till the INSUFF lamp is 0.0 0 0 0.0 2 0 0 0
"OFF" (e.g. 2)
Input sampling quantity before [1] [2] 12
Compute unit weight. [Pcs] ----- ----- ----- ------
0.0 0 0 0.0 2 0 1.7 0 0 0 12

3.4.2. Adopt Suggestion

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Put 10 pieces of samples on platter 0.0 0 0 0.0 1 6 0 0
The INSUFF lamp is "ON" when
sampling weight is under a certain level.
[Pcs] ----- ----- ----- ------
Giving a suggestion. Add 10
Add exactly 10 more pieces of samples Add 0
Compute unit weight. [Pcs] ----- ----- ----- ------
0.0 0 0 0.0 3 2 1.6 0 0 0 20

3.4.3. Ignore Suggestion

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Put 10 pieces of samples on platter 0.0 0 0 0.0 1 6 0 0
The INSUFF lamp is "ON" when
sampling weight is under a certain level.
[Pcs] ----- ----- ----- ------
Giving a suggestion. Add 10
Ignore the suggestion. [Pcs] ----- ----- ----- ------
0.0 0 0 0.0 1 6 1.5 9 0 2 10

15
3.5. Parts Counting Operation

3.5.1. Single Counting Operation

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Enter Unit weight by any means of 19.3 0.0 0 0 0.0 0 0 0.5 0 0 2 0
Unit Weight Entry Operation
Put bulk quantity on platter 0.0 0 0 0.4 0 0 0.5 0 0 2 800
[*] 0.0 0 0 0.4 0 0 0.5 0 0 2 800
Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [*] key.

3.5.2. Accumulation & Subtraction Operation

1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY

OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Enter Unit weight by any means of 19.3 0.0 0 0 0.0 0 0 0.5 0 0 2 0
Unit Weight Entry Operation
Put product on platter 0.0 0 0 0.4 0 0 0.5 0 0 2 800
Accumulate the data. [+] tOtAL 1 800
Return to Weighing mode. [C] 0.0 0 0 0.4 0 0 0.5 0 0 2 800
Remove product from platter 0.0 0 0 0.0 0 0 0.5 0 0 2 0
Put product on platter 0.0 0 0 0.2 5 0 0.5 0 0 2 500
Subtract the data. [-] Corr 0 300
Return to Weighing mode. [C] 0.0 0 0 0.2 5 0 0.5 0 0 2 500
Remove product from platter 0.0 0 0 0.0 0 0 0.5 0 0 2 0
Clear unit weight. [C] 0.0 0 0 0.0 0 0 0 0
Display total when unit weight is 0. [+] tOtAL 0 300
Return to Weighing mode. [C] 0.0 0 0 0.0 0 0 0 0
[1] [0] [0] 100
Accumulate the data. [+] tOtAL 1 400
Return to Weighing mode. [C] 0.0 0 0 0.0 0 0 0 0
[3] [7] 37
Subtract the data. [-] Corr 1 363
Return to Weighing mode. [C] 0.0 0 0 0.0 0 0 0 0
[*] 0.0 0 0 0.0 0 0 0 0
Note: 1) MEMORY lamp bright means there is accumulation data in memory,
(V1.02) While this time if change or clear PLU, DC-788 will remind with ”MEM EXIST”,
One can repress the key to continue operation or press [TARE] to cancel operation.
Note: 2) If DC-788 is connected to printer/PC, the data is printed/output by pressing [+], [-] and [*] key.

16
3.5.3. Negative Counting Function
Method A
1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Put container with parts on platter 0.0 0 0 1.2 5 5 0 0
Subtract the tare weight. [T] 1.2 5 5 0.0 0 0 0.0 0 0 0
Take 10 pcs of parts from container 1.2 5 5 - 0.0 2 5 0 0
Compute unit weight. [Pcs] ----- ----- ----- ------
:
1.2 5 5 - 0.0 2 5 2.4 7 8 10
Take bulk number from container 1.2 5 5 - 0.0 9 9 2.4 7 8 40
[*] 1.2 5 5 - 0.0 9 9 2.4 7 8 40
Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [*] key.

Method B
Must know the tare weight of container to use this method,
1 - ZERO 2 - NET 3 - INSUFF 4 – SCALE1 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Put container with parts on platter 0.0 0 0 1.2 5 5 0 0
Subtract the tare weight. [T] 1.2 5 5 0.0 0 0 0.0 0 0 0
Take 10 pcs of parts from container 1.2 5 5 - 0.0 2 5 0 0
Compute unit weight. [Pcs] ----- ----- ----- ------
:
1.2 5 5 - 0.0 2 5 2.4 7 8 10
Key in actual tare weight of container. [1] [.] [0] [0] 1.0
Subtract the tare weight. [TARE]
1.0 0 0 0.2 5 5 2.4 7 8 103
[*] 1.0 0 0 0.2 5 5 2.4 7 8 103
Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [*] key.

3.6. Net/Gross Operation

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – MEMORY
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Put product on platter 0.0 0 0 0.4 0 0 0 0
Read out Gross weight [Gross] 0.4 0 0
Return to Weighing mode. [Gross] 0.0 0 0 0.4 0 0 0 0
Subtract the tare weight. [T] 0.4 0 0 0.0 0 0 0.0 0 0 0
Read out Gross weight [Gross] 0.4 0 0
Put more product on platter 0.6 5 0
Return to Weighing mode. [Gross] 0.4 0 0 0.2 5 0 0 0
Note: 1) Only type A have Net/Gross function to shift display between Net weight and Gross weight.

17
 3.7. kg/lb Operation
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - kg 6 – lb
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Put product on platter 0.0 0 0 0.4 0 0 0 0
Shift to lb mode [kg/lb] 0.0 0 0 0.8 8 0 0 0
Return to kg mode [kg/lb] 0.0 0 0 0.4 0 0 0 0
[kg/lb] 0.0 0 0 0.8 8 0 0.0 0 0 0
Compute unit weight. [Pcs] ----- ----- ----- ------
0.0 0 0 0.8 8 0 8 7.9 9 2 10
Note: 1) Only type B have kg/lb function to shift weight unit between kg and lb.

3.8. Select 1st Scale or 2nd Scale Operation

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 – Scale1 6 – Scale2
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Select 1 Scale or 2 Scale key
st nd
[Scale] 0.0 0 0 0.0 0 0 0 0
0.0 0 0 0.0 0 0 0 0
Select 1 Scale or 2 Scale key
st nd
[Scale] 0.0 0 0 0.0 0 0 0 0
0.0 0 0 0.0 0 0 0 0
Note: 1) This function available only when SPEC26 2 Scale is enable.
nd

3.9. Item Code Call Up

3.9.1. Recall Numeric Item Code

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - IN 6 – OUT
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter item code. [1] [0] [0] 100
Call up item code. [CODE] 0.0 0 0 0.0 0 0 1.6 9 8 0 0
Select “In-Out” status. [IN/OUT] 0.0 0 0 0.0 0 0 1.6 9 8 0 0
Put bulk parts on platter. 0.0 0 0 0.1 4 5 1.6 9 8 0 84
[*] 0.0 0 0 0.1 4 5 1.6 9 8 0 84
Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [*] key.
And inventory value will update according to the IN/OUT status and Accumulation when quantity is accumulating.
Subtract from inventory when OUT status. Accumulate inventory when IN status.

18
 3.9.2. Recall Alphanumeric Item Code
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - IN 6 – OUT
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
ASCII enter mode. [.] ASC01 000- CODE
Call up PLU. [8] [0] ASC01 080-P CODE
“+” key to move cursor ahead. [+] ASC02 000- CODE
“-” key to move cursor back. [-] ASC01 080-P CODE
“C” key to delete character. [C] ASC02 000- CODE
[6] [5] ASC01 065-A CODE
[+] [6] [6] ASC02 066-b CODE
Call up item code “ABC10”. [CODE] 0.0 0 0 0.0 0 0 1.6 9 8 0 0
Select “In-Out” status. [IN/OUT] 0.0 0 0 0.0 0 0 1.6 9 8 0 0
Put bulk parts on platter. 0.0 0 0 0.1 4 5 1.6 9 8 0 84
[*] 0.0 0 0 0.1 4 5 1.6 9 8 0 84
Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [*] key.
And inventory value will update according to the IN/OUT status and Accumulation when quantity is accumulating. Subtract
from inventory when OUT status. Accumulate inventory when IN status.

3.9.3. Review Current PLU Contents

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - IN 6 – OUT
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter item code. [1] [0] [0] 100
Call up item code. [CODE] 0.0 0 0 0.0 0 0 1.6 9 8 0 0
Select “In-Out” status. [IN/OUT] 0.0 0 0 0.0 0 0 1.6 9 8 0 0
Put bulk parts on platter. 0.0 0 0 0.1 4 5 1.6 9 8 0 84
Review PLU contents[Scale] [Scale] ICODE 100
[Scale] Pno 123A
[Scale] Pname SCREW
[Scale] Lnum 2
[Scale] INVENT 4012
[Scale] 0.0 0 0 0.1 4 5 1.6 9 8 0 84
Note: 1) If DC-788 is connected to printer/PC, the data is printed/output by pressing [*] key.
2) Escape from review mode by pressing [TARE] key.

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4．Operations In Program Mode
4.1. Program Item Code
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. The total [MODE] ProG C 0
number of item codes in memory
appears in QTY column.
To program Item Code. *Note1 [1] [0] [0] 100
[CODE] 0.0 0 0 0.0 0 0 0 0
To program Tare Weight. 0.1 2 0 - 0.1 2 0 0 0
Enter tare WT by any means of 19.2.
To program Unit Weight. 0.1 2 0 0.1 4 5 1.6 9 8 0 84
Enter unit WT by any means of 19.3.
Store the data to program Inventory. [INVENT] 0 INVENT
[6] [0] [0] 600 INVENT
Store the data to program Parts [*] ASC01 000- P- No
Number.
e.g. Parts No is TA12. [8] [4] ASC01 084-T P- No
[6] [5] ASC02 065-A P- No
[4] [9] ASC03 049-1 P- No
[5] [0] ASC04 050-2 P- No
Store the data to program Parts Name. [*] ASC01 000- P-NAME
e.g. Parts Name is SCREW. [8] [3] ASC01 083-S P-NAME
[6] [7] ASC02 067-C P-NAME
[8] [2] ASC03 082-R P-NAME
[6] [9] ASC04 069-E P-NAME
[8] [7] ASC05 087-W P-NAME
Store the data to program Lot Number. [*] ASC01 000- LOt NO
e.g. Lot Number is LT68. [7] [6] [7] [6] ASC01 076-L LOt NO
[8] [4] ASC02 084-T LOt NO
[5] [4] ASC03 054-6 LOt NO
[5] [6] ASC04 056-8 LOt NO
Store the data to program Setpoint 1. [*] SET 1 0
e.g. Setpoint 1 value is 100pcs. [1] [0] [0] SET 1 100
Store the data to program Setpoint 2. [+] SET 2 0
e.g. Set point2 value is 50%. [5] [0] SET 2 50
Store the data. [*] ProG C 1
Quit to Weighing mode. [MODE] 0.0 0 0 0 0

*Note1: To enter alphanumeric character to item code, press [] key to change the screen to the display of alphanumeric entry.

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 4.2. Delete Item Code in Memory

4.2.1. Delete a Certain Item Code

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG

OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
To program Item Code. [1] [0] [0] 100
100 CLEAr
Delete item code. [C] ProG C 19
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

4.2.2. Delete all Item Code

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [0] [RE-ZERO] + ALL CLEAr
Enter . . 0 while pressing. [RE-ZERO] [.] [.] [0]
Delete all item code. [C] ProG C 0
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

4.2.3. Delete all Inventory Value from Memory

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [1] [RE-ZERO] + INVENT CLEAr
Enter . . 1 while pressing. [RE-ZERO] [.] [.] [1]
Delete all invent value. [C] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.。

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 4.2.4. Delete all Unit Weight Value from Memory
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [2] [RE-ZERO] + UNITW CLEAr
Enter . . 2 while pressing. [RE-ZERO] [.] [.] [2]
Delete all Unit Weight value. [C] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

4.2.5. Delete all Tare Weight Value from Memory

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [3] [RE-ZERO] + TAREW CLEAr
Enter . . 3 while pressing. [RE-ZERO] [.] [.] [3]
Delete all Tare Weight value. [C] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

4.2.6. Delete all Parts Numbers from Memory

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG

OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [4] [RE-ZERO] + PARTSNo CLEAr
Enter . . 4 while pressing. [RE-ZERO] [.] [.] [4]
Delete all Parts Number. [C] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

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 4.2.7. Delete all Setpoint Data from Memory
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [5] [RE-ZERO] + SetPOINT CLEAr
Enter . . 5 while pressing. [RE-ZERO] [.] [.] [5]
Delete all Setpoint Data. [C] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

4.2.8. Delete all Parts Name from Memory

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [6] [RE-ZERO] + PName CLEAr
Enter . . 6 while pressing. [RE-ZERO] [.] [.] [6]
Delete all Parts Name. [C] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

4.2.9. Reset Sequence Number to 0

1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U. Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
[RE-ZERO] [RE-ZERO] 88888 88888 88888 8888888
[RE-ZERO] + [.] [.] [7] [RE-ZERO] + SN CLEAr
Enter . . 7 while pressing. [RE-ZERO] [.] [.] [7]
Reset Sequence Number [C] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0
Note: *1) Press [MODE] key to go back to weighing mode without clearing.

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 4.3. Review Item Code
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
[MODE] [MODE] ProG C 20
[CODE] CH1 100
[+] [+] CH2 123
[-] [-] CH1 100
Quit to Program mode. [MODE] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0

4.4. Program Setpoint to Operate all Items

General setpoint value can be programmed to operate on all items. This value is enabled when no code number is
selected or the item code recalled in operation mode has no setpoint data.
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
Setpoint Program mode. [+] SET 1 0 0
[1] [0] [0] SET 1 0 100
Store Setpoint 1 value. [+] SET 2 0 0
[5] [0] SET 2 0 50
Store Setpoint 1 value. [+] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0

4.5. Date and Time

Date and Time will reset if DC788 without any power supply
Battery supply can support Date and Time without AC supply for 20 days in OFF status. After 20 days it will reset.
1 - ZERO 2 - NET 3 - GROSS 4 - INSUFF 5 - RECOMP 6 – PROG
OPERATION Key-in TARE WEIGHT U.Weight QTY. 1 2 3 4 5 6
Weighing mode. 0.0 0 0 0.0 0 0 0 0
Enter into Program mode. [MODE] ProG C 20
Display current date & time. [-] 26-08 0 3 TUE 15-28
[-] EntEr D-M-Y 260803
[2] [8] [0] [8] EntEr D-M-Y 28080 260803
[0] [3] 3
Store date setting. [*] EntEr TIME 15-28
[1] [5] [2] [5] EntEr TIME 1525 15-28
Store time setting. [*] ProG C 20
Quit to Weighing mode. [MODE] 0.0 0 0 0.0 0 0 0 0

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5．Error Massage List
The following error message will appear when an incorrect operation is performed.

Message Remarks Appropriate Operation

OF When displayed weight exceeded capacity+9d, or Remove the item on the platter.
something is on the platter when power on.
UF When displayed minus weight >= 9d. REZERO or ON/OFF again.
Error0 When communication between Main Board and A/D Power off and check the connection.
Board is not complete.
Error1 When calibration operation is not correct. Repeat calibration operation.
88888 When scale is not steady when power on. Place scale on firm, flat base.
If 2 scale is enabling, it must be steady also.
nd
You can press [C] to neglect 2nd scale is
But if 2nd scale hasn’t calibration, this will be neglect. not steady.

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