multicomp pro MP780002 Manual de usuario
1
Temperature Calibrator
Model No. MP780002
2
Read all instructions before using the appliance and retain for future reference.
• Please follow all safety operation instructions.
• Check the test leads, probes and case insulation before using. If you nd any
breakage or abnormality, or you consider the device is broken, stop using the
device immediately.
• Output a test voltage to conrm the calibrator is working properly before use.
• Select the proper function and range according to the measurement requirements.
• Before using the calibrator, make sure the battery cover is closed.
• When using the probes, do not touch the metal part of the probes. Keep your
ngers behind the nger guards on the probes.
• Always connect the common test lead rst then the live test lead. Remove the live
test lead rst when disconnecting.
• Disconnect the test leads before switching to other measurements or outputs.
• Children should be supervised to ensure that they do not play with the product.
• Do not use the product for any purpose other than that for which it is designed.
• Do not operate the product around explosive gas, vapour, or dust.
• Do not operate or store in an environment of high humidity or where moisture may
enter the product as this can reduce insulation and lead to electric shock.
• Turn the meter off when not in use to save the battery.
• Remove the battery if the meter is not to be used for long periods.
• Remove the test leads on the calibrator before opening the battery cover.
• Replace the battery as soon as the low battery warning appears on the display to
avoid possible electric shock or personal injury caused by incorrect readings.
PRODUCT OVERVIEW
WHAT’S INCLUDED
• Calibration meter
• Battery.
• Instruction manual.
• Test leads.
• Alligator clip.
IMPORTANT SAFETY INFORMATION
1. Source/Measure/Loop/Sim indicator
2. Main display
3. Low battery indicator
4. Excitation current too high
5. Excitation current too low
6. Ramp/Step indicator
7. Thermocouple output indicator
8. RTD output indicator
9. Resistance unit
10. Voltage unit
11. Percentage of source/measurement
value
12. Temperature unit
1
4
5
6 78
3
9
10
12
11
2
3
FUNCTIONS
1. Power ON/OFF button
2. Mode button V/Ω
3. RTD output button
4. Thermocouple output mode button
5. SLOPE/STEP mode button
6. C/F Temperature scale button
7. Value setting buttons
8. Test lead connection terminals
Source
• Connect the red test lead to V terminal, black to COM terminal, and connect the red
probe to the positive terminal of voltmeter, black to negative terminal.
• Press the POWER button (>2s) to turn on the calibrator and it will perform self-test,
which includes the internal circuit and LCD display testing. The LCD screen will
display all symbols for 1s during self-test.
• Press V/Ω button to switch between mV low range and high-range output, press
again to switch to resistance output, low and high ranges.
8
4
Auto Power Off
• The calibrator will automatically shut down if there is no button or communication
operation within the 30min (factory setting), which is enabled by default and is
displayed for about 2s during the booting process.
• To disable auto power off, press down LEFT (0%) value button while turning on the
calibrator until the buzzer beeps.
To enable auto power off, press down RIGHT (0%) value button while turning on the
calibrator until the buzzer makes a “beep” sound.
• To adjust the auto power off time, press down RIGHT (0%) value button while
turning on the calibrator until the buzzer beeps, then adjust the time between
1-30 min with the UP or DOWN (25%) value buttons, then short press TC button
to save the setting (if the time is not saved, the calibrator will exit settings mode
automatically in 5 seconds) and then enter the operating mode.
Backlight Brightness Control
• Press down UP (25%) value button while turning on the calibrator until the buzzer
makes a “beep” sound.
• Then adjust the backlight brightness by using the UP or DOWN (25%) value
buttons, the brightness value is displayed on the screen as shown:
• Long press TC button to save the setting (if the settings are not saved, the
calibrator will exit settings mode automatically in 5 seconds) and then enter the
operating mode.
• Briey press the UP or DOWN (25%) value buttons to add or subtract 1 for the
value above the underline (the value is automatically carried and the position of the
underline remains unchanged) and press LEFT (0%) or RIGHT (100%) to change
the position of the underline.
• Long press C/F button until the buzzer beeps, 0mV can be used as the value of 0%.
• Similarly, use the four value buttons to increase the output to 100.0mV
• Long press SLOPE/STEP button until the buzzer beeps, 100mV can be used as the
value of 100%.
• Long press UP or DOWN (25%) value buttons to increase or decrease the output
between 0% and 100% in 25% steps as shown:
5
OPERATION
Voltage Output
• Short press V/Ω and select voltage output, LCD displays ‘mV’ unit, then select the
corresponding range as required.
• Connect the red test lead to V terminal, black to COM
terminal.
• Connect the red probe to positive end of the voltmeter,
black to negative end of the voltmeter.
• Select an output digit by LEFT (0%) or RIGHT (100%)
buttons, and adjust its value with UP or DOWN (25%)
buttons.
• Read the data on the voltmeter.
Resistance Output
• Short press V/Ω and select resistance output, LCD displays ‘Ω’ unit, then select the
corresponding range as required.
• Connect the red test lead to V terminal, black to COM terminal.
• Connect the red probe to positive end of the voltmeter, black to negative end of the
voltmeter.
• Select an output digit by LEFT (0%) or RIGHT (100%) buttons, and adjust its value
with UP or DOWN (25%) buttons.
Lo symbol indicates that the excitation
current is too small and the main display
value will ash.
Hi symbol indicates that the excitation
current is too great and the main display
value will ash.
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Simulating Thermocouples
• Connect the calibrator output to the instrument
being measured with thermocouple wires and
simulate the thermocouple as follows:
• Short press T/C button to choose the
thermocouple function, LCD will display oC unit.
Keep pressing this button to select the required
thermocouple type (oC or oF)
• Connect the thermocouple wires to the calibrator.
Connect the red test lead to TC terminal, black to
COM terminal.
• Select an output digit by pressing LEFT (0%) or
RIGHT (100%) buttons, and adjust its value with
the UP or DOWN (25%) value buttons.
Thermocouple Cold Junction Temperature Compensation
Simulating thermocouples includes auto and manual cold junction temperature
compensation.
• The auto cold junction compensation directly adopts the cold junction temperature
of the device; and for the manual compensation, users can input the custom cold
junction temperature through buttons.
Auto Cold Junction Temperature Compensation
• When entering the thermocouple output mode for the rst time, the default method
of cold junction temperature compensation is Auto, as shown in the gure above.
• To view the current value of auto cold junction temperature compensation, long
press RTD button, and the Auto symbol is replaced by the current value which will
display for 2 seconds and then automatically return to Auto display.
Manual Cold Junction Temperature Compensation
• Users can enter the required cold junction temperature through buttons. The
specic steps are as follows:
• Long press TC button to enter the manual cold junction compensation setting
mode.
• Adjust the manual compensation using the LEFT (0%) or RIGHT (100%) and the
UP or DOWN (25%) buttons.
• Long press TC to save the manual compensation value, device will automatically
return to the thermocouple output mode.
• To return to Auto compensation mode, press and hold RTD.
oC or oF Temperature Display
• In temperature mode short press C/F button to switch modes between oC or oF.
7
Simulating Resistance Temperature Detectors (RTD)
• Connect the calibrator to the instrument being measured according to the gure as
shown, and simulate the RTD as follows:
• Press RTD button to select the RTD type.
• Connect the thermocouple wires to the calibrator as shown above: connect the red
test lead to TC terminal, black to COM terminal.
• Select an output digit by pressing LEFT (0%) or RIGHT (100%) buttons, and adjust
its value with the UP or DOWN (25%) value buttons.
Note: The calibrator can simulate a 2-wire RTD output on the front panel. To connect to
a 3-wire or 4-wire transmitter, use stacking cables to provide additional wiring.
ADVANCED APPLICATIONS
Setting 0% and 100% Output Parameters
• Users need to set the values of 0% and 100% for the step operation and
percentage display. Some values of the calibrator have been set as default.
• The table below lists the factory settings.
Output Functions 0% value 100% Value
mV (100mV) 0,000mV 100.000mV
mV (1000mV) 0.0mV 1000.0mV
Resistance 500Ω 0.0Ω 500.0Ω
Resistance 5000Ω 0.0Ω 5000Ω
Thermocouple type J 0.0oC 1000.0oC
Thermocouple type K 0.0oC 1000.0oC
Thermocouple type T 0.0oC 400.0oC
Thermocouple type E 0.0oC 800.0oC
Thermocouple type R 0.0oC 1500oC
Thermocouple type S 0.0oC 1500oC
Thermocouple type B 600oC 1800oC
Thermocouple type N 0.0oC 1000.0oC
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Output Functions 0% value 100% Value
WRe526 0.0oC 2000.0oC
WRe325 0.0oC 2000.0oC
Pt100 0.0oC 500.0oC
Pt1000 0.0oC 400.0oC
Cu50 0.0oC 150.0oC
Cu100 0.0oC 150.0oC
• These factory settings may not be suitable for your work, you can reset them
according to your requirements so that you can use the step or ramp output
function and get the percentage display.
• Adjust the output value with four VALUE buttons, long press C/F or SLOPE/STEP
until the buzzer makes a “beep” sound to set the new values of 0% and 100%. The
newly set range is automatically saved in the calibrator storage area, and it is still
valid after restarting.
• Now you can use the settings to do the following:
• Long press UP or DOWN (25%) to manually step (increase or decrease) the output
in 25% increments.
• Long press LEFT (0%) or RIGHT (100%) to switch the output between 0% and
100% range.
Auto Ramping (inc/dec) the Output
• The auto ramping function allows you to continuously apply a varying signal from
the calibrator to the transmitter and view the calibrators response.
• Press the SLOPE/STEP button and the calibrator will generate a continuous and
repeating 0% - 100% ramping output.
• Three types of ramping waveforms are available:
1. 0%-100%-0% 40 second smooth ramp
2. 0%-100%-0% 15 second smooth ramp
3. 0%-100%-0% 25% step ramp pausing for 5 seconds at each step
• Press any key to exit the ramping output function.
Restore Factory Settings
• Long press the RTD button while powering on the calibration until the buzzer
sounds. After the factory reset is completes the calibrator will automatically enter
into the operating mode.
• The following factory settings are restored:
1. Operating mode: voltage output mode
2. Auto power off time: 30 mins (enabled)
3. LCD backlight brightness: 60%
4. Output range
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SPECIFICATIONS
Range Max output range Resolution Accuracy ±(% reading + digits)
100mV -10.00~125.00mV 0.001mV 0.05%+3
1000mV 0~1100.0mV 0.1mV 0.05%+3
-10oC~18oC, +28oC~55oC temperature coefcient: ±0.005%FS/oC
Max load: 1mA or 1kΩ, select a small load
Range Range Resolution Accuracy ±(% reading + digits)
Pt100 -200oc~850oc
0.1oC/
0.1oF
0.05%+0.6oC
Pt10 -200oc~850oc0.5%+6oC
Cu50 -50oc~150oc0.05%+0.6oC
Cu100 -50oc~150oc0.05%+0.6oC
External excitation current allowed at output: please refer to the resistance output
function.
Range Max output range Resolution
External
Excitation
Current
Accuracy
±(% reading +
digits)
500Ω 0.0~500.0Ω 0.1Ω 0.075mA~3.0mA 0.05%+2
5000Ω 0.0~5000.0Ω 1Ω 7.5mA~0.3mA 0.05%+2
-10oC~18oC, +28oC~55oC temperature coefcient: ±0.005%FS/oC
DC mV Output
Resistance Output
Temperature RTD
• All specications are based on a one year calibration period and applied to a
working temperature range of +18oC~+28oC unless otherwise specied.
All specications are obtained after a 30 minute period of operation.
Display count: 200000
Range: manual
Operating temperature: 0°C~50°C (32°F~122°F)
Storage temperature: -20°C~70°C (-4°F~158°F)
Relative humidity: 0°C~below 30°C:<75%; 30°C~40°C: <50%
Operating altitude: 0~2000m
Battery: 9Vx1
Dimension: about 96x193x47mm
Weight: about 370g (including battery)
EMC: RF eld (3V/m): overall accuracy= specied
accuracy+ 5% of range RF eld (>3V/m):
no specied calculation
10
Range Max output range Resolution Accuracy ±(% reading + digits)
J-200oc~0oc0.1oC/0.1oF
1.0oC
0.7oC
0oc~1200oc
K
-200oc~0oc
0.1oC/0.1oF
1.2oC
0oc~1370oc 1oC
T
-200oc~0oc
0.1oC/0.1oF
1.2oC
0oc~400oc 0.8oC
E
-200oc~0oc
0.1oC/0.1oF
0.9oC
0oc~950oc 0.7oC
R
-20oc~0oc
1oC/1oF
2.5oC
1.8oC
0oc~500oc
1.4oC
500oc~1750oc
S
-20oc~0oc
1oC/1oF
2.5oC
0oc~500oc1.8oC
500oc~1750oc1.5oC
B
-600oc~800oc
1oC/1oF
2.2oC
800oc~1000oc1.8oC
1000oc~1800oc1.4oC
N-200oc~0oc0.1oC/0.1oF
1.5oC
0.9oC
0oc~1300oc
Wre325 0oc~2000oc 0.1oC/0.1oF 1.8oC
Wre526 0oc~2300oc 0.1oC/0.1oF 1.8oC
The error in this table does not include the error of cold junction temperature
compensation. Cold junction temperature compensation accuracy: 1.5oC
Temperature Thermocouple
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