1.

INTRODUCTION
INDEX
1. INTRODUCTION........................................................................................... 1

2. SAFETY INFORMATION .............................................................................. 2

The Novus Calibrators series DC80 are portable instruments designed to meet the
3. MODEL DC80T ............................................................................................. 2 user needs for measuring and simulating signals such as voltage, current,
resistance, thermocouples and RTDs. The available options depend on the
3.1. MODEL DC80T GENERAL SPECIFICATIONS..................................... 3 particular model. They are:
3.2. MODEL DC80T FRONT PANEL ............................................................ 3
• DC80T, for Thermocouples and mV
3.3. MODEL DC80T OPERATING INSTRUCTIONS.................................... 4
• DC80R, for RTDs and resistance
4. MODEL DC80R............................................................................................. 5
• DC80L, for linear mV, V and mA (provides internal power supply for
4.1. MODEL DC80R GENERAL SPECIFICATIONS .................................... 6
powering 2-wire transmitters)
4.2. MODEL DC80R FRONT PANEL ........................................................... 6
4.3. MODEL DC80R OPERATING INSTRUCTIONS ................................... 7

5. MODEL DC80L ............................................................................................. 8

5.1. MODEL DC80L GENERAL SPECIFICATIONS ..................................... 9
5.2. MODEL DC80L FRONT PANEL ............................................................ 9
5.3. PROTECTION ...................................................................................... 10
5.4. MODEL DC80L OPERATING INSTRUCTIONS .................................. 10

6. MAINTENANCE .......................................................................................... 13

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2. SAFETY INFORMATION 3. MODEL DC80T
To avoid possible electric shock or personal injury: The MODEL DC80T is capable of measuring and generating mV and
thermocouple signals. The specifications shown on the tables below are valid for
• Use the Calibrator only as specified in this manual, or the protection provided the period of one year, at ambient temperatures between 18~28 °C.
by the Calibrator might be impaired.
INPUT/OUTPUT RANGE RESOLUTION ACCURACY
• Do not apply more than the rated voltage between the terminals, as marked on
the Calibrator, or between any terminal to earth. -10 mV to 75 mV 0.01 mV ± (0.025 % + 2 counts)

• Make sure the battery door is closed and latched before operating the
calibrator. Measurement and Simulation specifications for Thermocouples:
• Remove test leads from the calibrator before opening the battery door. Type Range Resolution Accuracy Tamb Error (*)
• Inspect the Calibrator before using it. Do not use the Calibrator if it appears J -200 to 1200 °C / -328 to 2192 °F 0.1 °C / ºF ± (0.15 % Span) ± 0.5 ºC
damaged.
K -200 to 1370 °C / -328 to 2498 °F 0.1 °C / ºF ± (0.15 % Span) ± 0.5 ºC
• Do not operate the calibrator around explosive gas, vapor, or dust.
T -200 to 400 °C / -328 to 752 °F 0.1 °C / ºF ± (0.15 % Span) ± 0.5 ºC
E -200 to 950 °C / -328 to 1742 °F 0.1 °C / ºF ± (0.15 % Span) ± 0.5 ºC
To avoid possible damage the calibrator or system, make sure to use the right
connector and select the appropriate range before using the instrument for R -20 to 1750 °C / -4 to 3182 °F 1 °C / ºF ± (1 ºC + 10 µV) ± 0.5 ºC
measurement or simulation.
S -20 to 1750 °C / -4 to 3182 °F 1 °C / ºF ± (1 ºC + 10 µV) ± 0.5 ºC
B 600 to 1800 °C / 1112 to 3272 °F 1 °C / ºF ± (1 ºC + 10 µV) ± 0.5 ºC
N -250 to 1300 °C / -418 to 2372 °F 0.1 °C / ºF ± (0.3 ºC + 10 µV) ± 0.5 ºC

- (*) Tamb Error is the accuracy of internal ambient temperature sensor

- Maximal input voltage: 30 Vpp.

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3.1. MODEL DC80T GENERAL SPECIFICATIONS 3.2. MODEL DC80T FRONT PANEL
Maximum voltage allowed between any terminal and earth ground or between the The keypad and display functions are shown below:
two input terminals: ............................................................................................ 30 V
Input connector
Storage temperature: ........................................................................ -40 °C ~ 60 °C
Output connector
Operating temperature: .........................................................................0 °C ~ 50 °C
Power ON / OFF switch
Operating altitude: .................................................................3000 meters maximum
Input type selection key
Temperature coefficient:...............±0.02 % / °C on 0 °C ~ 18 °C and 28°C ~ 50 °C
°C / °F key
Relative humidity: ........................................................................... 95 % up to 30 °C
........................................................................................................ 75 % up to 40 °C INPUT / OUTPUT selection key
........................................................................................................ 45 % up to 50 °C Fast increment key
Shock:........................................................................... Random 2 g, 5 Hz to 500 Hz Fast decrement key
Safety: ............................................................................................ 1 meter drop test Increment key
Power requirements: ...............................................................6 x AAA 1.5 V Battery Decrement key
Size:.................................................................................205 mm x 98 mm x 46 mm Low battery indication
Weight: .....................................................................................472 g (with batteries) Input mode indication

Output mode indication

Reading value
Unit (°C / °F / mV) indication
Thermocouple type indication

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3.3. MODEL DC80T OPERATING INSTRUCTIONS Thermocouple or mV Simulation
In thermocouple temperature simulation the calibrator generates the voltage as an
1. Press the power switch to
actual thermocouple, considering both the simulated temperature (hot joint) and
turn on the calibrator.
connection temperature (cold joint). To ensure stated accuracy the user must use
a connection cable between calibrator and calibrated device with the same
2. Press the INPUT / OUTPUT key
thermoelectric properties of the selected thermocouple (extension or
to select OUTPUT mode.
compensation cable).
A K type extension cable (yellow connector) is supplied with the calibrator and 3. Press the TC TYPE selection
should only be used for K type calibration for maximum accuracy. key to configure the desired
Make sure that the appropriate cable with the correct polarity is being used to output signal type.
avoid large calibration errors.
4. Press the increment /
decrement keys
Thermocouple or mV measurement to adjust the value to be
simulated.
1. Press the power switch to turn
on the calibrator. 5. The simulated signal is
delivered at the output
2. Press the INPUT / OUTPUT key connector .
to select INPUT mode.
3. Press the TC TYPE selection key 6. To change output values, press
to configure the instrument to the the increment / decrement keys
until the desired value is
desired input type
presented in the display.
4. Connect the T/C or mV signal to the Changing to other input types is
input connector . accomplished by the TC TYPE
selection key .
5. The measured value is presented in
.

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4. MODEL DC80R
RTD measurement and simulation specifications:

Accuracy ( °C )
Excitation
The MODEL DC80R RTD Process Calibrator measures and simulates resistance Mode Range
Input Input current (mA)
values of 7 distinct types of RTDs, either in °C or °F. Simultaneous measurement 4W 2W/3W
Output
and signal simulation is not provided.
The specifications are valid for the period of one year, at temperatures between -200 ~ 800 °C /
Pt10 385 NOT SPECIFIED 0.1 ~ 3.0
-328 ~ 1472 °F
18~28 °C.
-200 ~ 800 °C /
Pt50 385 0.7 1.0 0.7 0.1 ~ 3.0
Resistance measurement and simulation specifications: -328 ~ 1472 °F
-200 ~ 800 °C /
Pt100 385 0.33 0.5 0.33 0.1 ~ 3.0
Measurement accuracy Simulate Excitation -328 ~ 1472 °F
Range
(4W±Ω) Accuracy ( ± Ω ) current (mA)
-200 ~ 250 °C /
0.2 0.3 0.2
-328 ~ 482 °F
0.15 0.1 ~ 0.5 Pt200 385 0.1 ~ 3.0
250 ~ 630 °C /
0.00 Ω~ 400.00 Ω 0.1 0.8 1.6 0.8
482 ~ 1166 °F
0.1 0.5 ~ 3.0
-200 ~ 500 °C /
0.3 0.6 0.3
-328 ~ 932 °F
400.0 Ω~ 1500.0 Pt500 385 0.05 ~ 0.8
0.5 0.5 0.05 ~ 0.8 500 ~ 630 °C /
Ω 0.4 0.9 0.4
932 ~ 1166 °F
1500.0 Ω~ 1 -200 ~ 100 °C /-
1 0.05 ~ 0.4 0.2 0.4 0.2
3200.0 Ω Pt1000 328 ~ 212 °F
2 0.05 ~ 0.8
385 100 ~ 630 °C
0.2 0.5 0.2
The excitation current applies only to the simulation mode. The excitation current /212 ~ 1166 °F
is provided by the target instrument (OHM meter of RTD meter) connected to the -200 ~ 630 °C /
Pt100 JIS 0.3 0.5 0.3 0.1 ~ 3.0
calibrator. -328 ~ 1166 °F

The excitation current applies only to the simulate mode. The excitation current is
provided by the target instrument (OHM meter of RTD meter) connected to the
calibrator.

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4.1. MODEL DC80R GENERAL SPECIFICATIONS 4.2. MODEL DC80R FRONT PANEL
Maximum voltage allowed between any terminal and earth ground or between the The keypad and display functions are shown below:
two input terminals: ............................................................................................ 30 V
4-wire input terminal (not used
Resolution: .................................................RTD 0.1 °C / °F; Resistance 0.01 / 0.1 Ω for output)
2-wire input / output terminal
Storage temperature: ........................................................................ -40 °C ~ 60 °C
2-wire input / output terminal
Operating temperature: ..................................................................... -10 °C ~ 55 °C 3-wire input terminal (not used
for output)
Operating altitude: .................................................................3000 meters maximum
Power ON / OFF switch
Temperature coefficient:................ ±0.01 % / °C (0 °C ~ 18 °C and 28 °C ~ 50 °C) RTD type selection key
Relative humidity: ............................................................................ 95 % up to 30 °C °C / °F selection key
....................................................................................................................... 75 % up to 40 °C INPUT/OUTPUT selection key
....................................................................................................................... 45 % up to 50 °C Fast increment key (simulation) /
........................................................................................................ 35 % up to 55 °C wire mode selection
(measurement)
Shock:........................................................................... Random 2 g, 5 Hz to 500 Hz
Fast decrement key (simulation) /
Safety: ............................................................................................ 1 meter drop test wire mode selection
(measurement)
Power requirements: ...............................................................6 x AAA 1.5 V Battery Increment key
Size:.................................................................................205 mm x 98 mm x 46 mm Decrement key
Low battery indication
Weight: ............................................................................. 472 g (including batteries)
INPUT mode indication
OUTPUT mode indication
Reading (measurement) value
indication
Unit (°C / °F) indication
Input type indication

Accessories included: 2 pairs of test leads and alligator clips

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4.3. MODEL DC80R OPERATING INSTRUCTIONS RTD Simulation
RTD measurement 1. Press the power switch to
turn ON the calibrator.
1. Press the power switch to
2. Press the INPUT / OUTPUT key
turn ON the calibrator.
to select OUTPUT mode.
2. Press the INPUT / OUTPUT key 3. Press RTD mode key to
to select INPUT mode. select the desired RTD type.
4. Press the Increment /
3. Press RTD mode key for decrement keys
selecting the RTD type. to set the desired output value.

4. Connect the RTD or Resistance 5. Connect the RTD or Resistance

to the input connector. meter to the input terminals, as
indicated in the drawing at the
right.
5. For 3 W / 4 W mode
measurements, press the wire 6. For simulating signal in 3W / 4W
mode select key and to modes, add the extra wires as
select the desired mode. Then shown in the drawing.
wire the signal to the
corresponding input terminal. 7. To change the output value,
press the increment / decrement
keys until the
6. Get the reading value . desired value is presented on
the display. Changing to
another RTD type is
accomplished by the RTD TYPE
selection key .

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5. MODEL DC80L
Voltage measurement and simulation:

Accuracy ± (% of reading +
Function Range Resolution
Counts)
The DC80L is the calibrator model for measuring and simulating V, mV and mA
signals. The DC80L is capable of measuring and generating 0 to 24 mA DC DC V / mV INPUT 0 ~ 110 mV 0.01 mV ± (0.05 % + 5 counts)
current signals and voltages up to 15 V DC. Simultaneous measurement and Auto range 0 ~ 15 V 0.001 V ± (0.05 % + 5 counts)
signal simulation is not provided.
DC V / mV 0 ~ 100 mV 0.01 mV ± (0.05 % + 5 counts)
Current measurements options are: OUTPUT 0 ~ 15 V 0.001 V ± (0.05 % + 5 counts)
- With use of external power supply provided by the system. In this case, the Input impedance: 2 M Ω (nominal) < 100 pF
calibrator is placed in series to measure the loop current (signal of a 2-wire
Over voltage protection: 30 V
transmitter, for example).
Voltage driver capability: 1 mA
- The calibrator provides the power to the loop. This option makes use of the
DC80L built-in power supply. This configuration applies to measurements of
standalone 4-20 mA transmitters (sink type transmitters). DC mA measurement and simulation

Current simulation possibilities are: Accuracy @ 25 °C

Range Resolution
- The calibrator sources the current to the target instrument. ± (% of reading + Counts)

- The calibrator simulates (behaves as) a 2-wire transmitter. 0 ~ 24 mA

0.001 mA ± 0.03 % + 5
(Input and Output)
The following tables show the DC80L specifications functions and ranges, based
on a one year calibration period, at ambient temperatures ranging from +18 °C to Overload protection: 125 mA, 250 V fast acting fuse
+28 °C. “Counts” means units of the least significant digit. Percent display: 0 % = 4 mA, 100 % = 20 mA
Source mode: compliance 1000 Ω at 20 mA for battery voltage ≥ 6.8 V ( 700 Ω
at 20 mA for battery voltage 5.8 to 6.8 V )
Simulate mode: External loop voltage requirement: 24 V nominal, 30 Vmax, 12 Vmin

Loop Power

Internal power supply 24 V ± 10 % / 25 mA max.

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5.1. MODEL DC80L GENERAL SPECIFICATIONS
Maximum voltage allowed between any terminal and earth ground or between the 5.2. MODEL DC80L FRONT PANEL
two input terminals: ............................................................................................ 30 V
The keypad and display functions are shown below:
Storage temperature: ........................................................................ -40 °C ~ 60 °C
Loop power 24 V to ground
Operating temperature: ..................................................................... -10 °C ~ 55 °C
mA measurement input jack
Operating altitude: .................................................................3000 meters maximum
Input or output negative (GND)
Temperature coefficient:.................................................................... ± 0.005 % / °C jack
(for the temperature range -10 °C to 18 °C and 28 °C to 55 °C)
V / mV input or output jack
Relative humidity: ........................................................................... 95 % up to 30 °C
Power ON / OFF switch
........................................................................................................ 75 % up to 40 °C
........................................................................................................ 45 % up to 50 °C V / mV mode key
........................................................................................................ 35 % up to 55 °C mA / mA % mode key
Shock:........................................................................... Random 2 g, 5 Hz to 500 Hz INPUT / OUTPUT selection key
Safety: ............................................................................................ 1 meter drop test Fast increment key
Power requirement: ...................................................................................... 6 x AAA Fast decrement key
Size:.............................................................. 204 mm (L) x 99 mm (W) x 46 mm (H) Increment key

Weight: ............................................................................. 460 g (including batteries) Decrement key

External power supply .......................................................................9 Vdc / 500 mA Low battery indication

INPUT mode indication
OUTPUT mode indication
Result value
V / mV indication
mA / mA % indication

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5.3. PROTECTION 5.4. MODEL DC80L OPERATING INSTRUCTIONS
The MODEL DC80L calibrator uses two protection fuses, rated 125 mA / 250 V, DC mV and V measurements
internally connected in series with the current terminals (2) and (4).
To avoid personal injury or damage to the calibrator, use only 125 mA / 250 V fast 1. Press the power switch to
fuses. turn on the Calibrator.

Notes on fuses: 2. Press the INPUT / OUTPUT

- Fuse 1 is probably blown out when the display flashes the message OL while mode key to select INPUT
in Voltage output mode with the leads removed from the calibrator. mode.
- Fuse 2 is probably blown out if the calibrator reads 0.000 in mA input mode,
even under the presence of a current input signal 3. Press the V/mV mode key
to select mV input .

4. Plug the red test lead to “V” jack

and the black one to the
“COM” jack .

5. Connect the test leads

according to the signal polarity:
red to the positive polarity, black
to the negative polarity (GND).

6. Measurement value is shown on

the display .

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DC mV and V generation DC mA measurement
a) Using external power supply
1. Press the power switch to
turn on the Calibrator.
1. Press the power switch to turn
on the Calibrator.
2. Press the INPUT / OUTPUT
mode key to select
OUTPUT mode . 2. Press the INPUT / OUTPUT
selection key to select input
mode. The INPUT sign is shown
3. Press the V / mV mode key
on the display .
to select the desired output
scale. The mode indication (V or
mV) is shown in . 3. Press the mA / mA % mode key
, to select mA or mA % .
4. Use the increment / decrement
keys to adjust 4. Plug the red test lead in the mA
the output to the desired value. jack and the black one to
the COM jack .
5. Plug the red test lead in the “V”
jack and the black one to 5. Connect the test lead according
the COM jack . to the signal polarity (red to the
positive, black to the negative).
6. Connect the positive test lead
(red) and the negative test lead 6. The measurement is shown on
(black) to the target equipment. the display .

7. For changing the output value,

use the increment / decrement
keys and the V
/ mV mode key until the
desired value is displayed.

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b) Measurements using calibrator’s internal power supply for powering the DC mA generation
loop a) Sourcing mA
The calibrator provides an internal 24 V power supply for measuring the signal of
2-wire transmitters (sink transmitters). The 24 Vdc is applied between terminals 1. Press the power switch to
+LOOP e COM. The sink transmitter is to be connected between terminals turn the Calibrator ON.
+LOOP (Power supply output) and mA (terminal for the loop current monitoring).
2. Press the input / output mode
1. Press the power switch to key to select OUTPUT
turn on the Calibrator. mode .

2. Choose OUTPUT mode by 3. Press the mA / mA % mode key

pressing the INPUT / OUTPUT to select mA or mA % .
key .
4. Press the increment /
3. Press the mA / mA % mode key decrement keys
to choose the desired unit. to set the desired output value.
The sings mA or mA % will
be presented on the display. 5. Plug the red test lead into the
LOOP jack and the black
4. Plug the red test lead into the one to the V jack .
LOOP jack and the black
one to the mA jack . 6. Connect the test leads such that
the current enters the red lead
5. Connect the test leads such that and returns to the power supply
the current enters the red lead through the black lead.
and returns to the power supply
through the black lead. 7. To change the output value,
press the increment / decrement
6. The measurement is shown on keys and / or
the display . the mA mA % mode key .

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 6. MAINTENANCE
b) Simulating a 2-wireTransmitter (sink transmitter)

1. Press the power switch to

turn on the Calibrator. Cleaning
Periodically wipe the case with a damp cloth and detergent; do not use abrasives
2. Press the INPUT / OUTPUT
mode key to select
or solvents.
OUTPUT mode .
Calibration
3. Press the mA / mA % mode key Calibrate your calibrator once a year to ensure its performance according to the
to select mA or mA % . specifications.

Replacing the Battery

4. Press the increment /
decrement keys Change the battery when the display signs .
to set the desired output value.
Turn off the power, unscrew the battery cover, and replace the batteries.
5. Plug the red test lead into the V
jack and the black one to
the COM jack .

6. Connect the test leads such that

the current enters the red lead
and returns to the power supply
through the black lead.

7. To change the output value,

press the increment / decrement
keys and / or
the mA / mA % mode key .

Accessories: a pair of Test Leads

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