NOVUS DC80L User Manual

INDEX

1. INTRODUCTION ........................................................................................... 1

1. INTRODUCTION

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

3. MODEL DC80T ............................................................................................. 2

3.1. MODEL DC80T GENERAL SPECIFICATIONS ..................................... 3

3.2. MODEL DC80T FRONT PANEL ............................................................ 3

3.3. MODEL DC80T OPERATING INSTRUCTIONS .................................... 4

4. MODEL DC80R ............................................................................................. 5

4.1. MODEL DC80R GENERAL SPECIFICATIONS .................................... 6

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

The Novus Calibrators series DC80 a re porta bl e ins truments desi gned to meet the user needs for measuring and simulating signals such as voltage, current, resistance, thermocouples and RTDs. The available options depend on the particular model. They are:

• DC80T, for Thermocouples and mV

• DC80R, for RTDs and resistance

• DC80L, for linear mV, V and mA (provides internal power supply for

powering 2-wire transmitters)

2. SAFETY INFORMATION

328 to 2192 °F

328 to 2498 °F

600 to 1800 °C / 1112 to 3272 °F

418 to 2372 °F

(0.3 ºC + 10 µV)

3. MODEL DC80T

To avoid possible electric shock or personal injury:

• Use the Calibrator only as specified in this manual, or the protection provided by the Calibrator might be impaired.

• Do not apply more than the rated voltage between the t erminals, as marked on the Calibrator, or between any terminal to earth.

• Make sure the battery door is closed and latched before operating the calibrator.

• Remove test leads from the calibrator before opening the battery door.

• Inspect the Calibrator befor e using it. Do not use the Calibrator if i t appears

damaged.

• Do not operate the calibrator around explosive gas, vapor, or dust.

To avoid possible damage the cali brator or system, make sure to use the right connector and select the appropriate range before using the instrument for measurement or simulation.

The MODEL DC80T is capable of measuring and generating mV and thermocouple signals. The spec ifications shown on the t ables below are valid for the period of one year, at ambient temperatures between 18~28 °C.

INPUT/OUTPUT RANGE

-10 mV to 75 mV 0.01 mV ± (0.025 % + 2 c ounts)

RESOLUTION

ACCURACY

Measurement and Simulation specifications for Thermocouples:

Type

J -200 to 1200 °C / K -200 to 1370 °C / T -200 to 400 °C / -328 to 752 °F 0.1 °C / ºF

E -200 to 950 °C / -328 to 1742 °F 0.1 °C / ºF R -20 to 1750 °C / -4 to 3 182 °F 1 °C / ºF S -20 to 1750 °C / -4 to 3182 °F 1 °C / ºF B N -250 to 1300 °C / -

Range Resolution Accuracy Tamb Error (*)

0.1 °C / ºF

1 °C / ºF

0.1 °C / ºF

± (0.15 % Span) ± 0.5 ºC ± (0.15 % Span) ± 0.5 ºC ± (0.15 % Span) ± 0.5 ºC ± (0.15 % Span) ± 0.5 ºC ± (1 ºC + 10 µV) ± 0.5 ºC ± (1 ºC + 10 µV) ± 0.5 ºC ± (1 ºC + 10 µV) ± 0.5 ºC

± 0.5 ºC

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

- Maximal input voltage: 30 Vpp.

3.1. MODEL DC80T GENERAL SPECIFICATIONS

Maximum voltage allowed bet ween a ny termi nal and earth g round o r bet ween th e

two input terminals: ............................................................................................ 30 V

Storage temperature: ........................................................................ -40 °C ~ 60 °C

Operating temperature: ......................................................................... 0 °C ~ 50 °C

Operating altitude: ................................................................. 3000 meters maximum

Temperature coefficient: ...............±0.02 % / °C on 0 °C ~ 18 °C and 28°C ~ 50 °C

Relative humidity: ........................................................................... 95 % up to 30 °C

........................................................................................................ 75 % up to 40 °C

........................................................................................................ 45 % up to 50 °C

Shock:........................................................................... Random 2 g, 5 Hz to 500 Hz

Safety: ............................................................................................ 1 meter drop test

Power requirements: ...............................................................6 x AAA 1.5 V Battery

Size:................................................................................. 205 mm x 98 mm x 46 mm

Weight: ..................................................................................... 472 g (with batteries)

3.2. MODEL DC80T FRONT PANEL

The keypad and display functions are shown below:

Input connec tor Output connector Power ON / OFF switch Input type selection key °C / °F key INPUT / OUTP UT s elec t ion k ey Fast increm ent key Fast decrement key Increment key Decrement key Low battery indication Input mode i ndication Output mode indication Reading val ue Unit (°C / °F / mV) indication Thermocouple type indication

3.3. MODEL DC80T OPERATING INSTRUCTIONS

Press the increment / to adjust the value to be

The simulated signal is

livered at the output

until the desired value is

In thermocouple temperature si mul ation the calibrator generates the vol tag e as an actual thermocouple, considering both the simulated temperature (hot joint) and connection temp erature (cold j oint). To ens ure stated accurac y the user mus t use a connection cable between calibrator and calibrated device with the same thermoelectric properties of the selected thermocouple (extension or compensation cable).

A K type extension cabl e (yellow connector) is supplied with the calibrator and should only be used for K type calibration for maximum accuracy.

Make sure that the appropriat e cable with the correct polarity is being us ed to avoid large calibration errors.

Thermocouple or m V measurement

1. Press the po w er switch on the calibr ator.

2. Press the INPUT / OUTPUT key to select INPUT mode.

3. Press the TC TYPE selection key

to configure the instrument to the

desired input type

4. Connect the T /C or mV signal to the input connector

5. The measured value is presented in

to turn

Thermocouple or m V Simulation

1. Press the power switch to turn on the calibrator.

2. Press the INPUT / OUTPUT key

to select OU TP UT mo de.

3. Press the TC TYPE selection

6. To change output values, press

to configure the desired

key output signal type.

decrement keys simulated.

de connector .

the increment / decrement keys presented in the display.

Changing to other input types is accomplished by the TC TYPE selection key

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