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M-141 Portable Multifunction Calibrator

Multifunction calibrator is designed for use in calibration laboratories, quality departments and production lines as a standard for electric quantity meters testing. With model M-141 calibration of voltmeters to 750 V, ammeters to 2 A, resistance ranges of multimeters and industrial evaluation units can be performed easily. Interface RS-232 enables to add the calibrator to the automated calibration and testing systems.
Model M-141 can work under Meatest application SW like WinQbase and Caliber. Version M-141R contains build-in programmable RTD simulator for simulation of Pt/Ni temperature sensors.

Topics

  • Voltage range from 0 to 750 V DC/AC with uncertainty 0.01 %
  • Current range from 0 to 2 A DC/AC with uncertainty 0.02 %
  • Sinusoidal output signal
  • Fix standard resistors from 10 Ohm to 100 MOhm in decade values with uncertainty 0.02 %
  • TC temperature sensor simulation R, S, B, J, T, E, K, N in range from -250 oC to 1850 oC
  • Cold junction point automatic compensation with internal Pt100 sensor
  • Power supply voltage 115/230V 50/60 Hz
  • Interface RS 232, (IEEE488 as option)
  • Comfortable control, large display
  • Weight 8 kg

Specification

DC/AC voltage

range % of value
+ % of range		 % of value
+ % of range		 % of value
+ % of range
  DC 20 Hz - 200 Hz 200 Hz - 1000 Hz
0 mV - 10 mV * 0.05 + 0.0 + 10 µV 0.20 + 0.05 + 20 µV 0.20 + 0.10 + 20 µV
10mV - 100mV 0.01 + 0.001 + 10 µV 0.10 + 0.03 + 20 µV 0.15 + 0.05 + 20 µV
100 mV - 1 V 0.008 + 0.002 0.05 + 0.005 0.07 + 0.01
1 V - 10 V 0.008 + 0.002 0.05 + 0.005 0.07 + 0.03
10 V - 100 V 0.015 + 0.004 0.05 + 0.01 0.07 + 0.03
100 V - 750 V 0.018 + 0.004 0.03 + 0.02 0.10 + 0.03
* DC voltage from 0 µV, AC voltage from 1 mV

DC/AC current

range % of value
+ % of range		 % of value
+ % of range		 % of value
+ % of range
  DC 20 Hz - 200 Hz 200 Hz - 1000 Hz
1 µA - 200 µA 0.05 + 0.0 + 20 nA 0.25 + 0.0 + 20 nA 0.30 + 0.10 + 20 nA
200 µA - 2 mA 0.025 + 0.005 0.10 + 0.01 0.20 + 0.05
2 mA - 20 mA 0.015 + 0.003 0.07 + 0.005 0.20 + 0.05
20 mA - 200 mA 0.015 + 0.003 0.07 + 0.005 0.20 + 0.05
200 mA - 2 A 0.015 + 0.005 0.1 + 0.005 0.25 + 0.05
When option 140-50 Current coil is used, add uncertainty 0.3 % of the set current to the value specified in the above table. Output current is multiplied by factor 25/50.

TC temperature sensor simulation

Type R, S, B, J, T, E, K, N
Temperature range -250 °C - 1820 °C
Uncertainty 0.4 °C až 3.2 °C
Temperature scale ITS 90, IPTS 68
Manual and automatic compensation of cold junction temperature.

Frequency output

Frequency waveform square with fix amplitude 5Vpk-pk
Frequency range 0.1 Hz to 2 MHz
Frequency resolution 5 1/2 digit

Resistance

Nominal value (Ohm) % of value
10 0.03 +
10 mΩ
100 0.05
1 k 0.02
10 k 0.02
100 k 0.02
1 M 0.05
10 M 0.05
100 M 0.2

Accessories

Accessories (included)

Power line cable 1 pc
Operation manual 1 pc
Option 10/11 : Test cable for 1000V - 20 A, black/red 2 pcs

Options (extra ordered)

Option 140-50 Current coil with 25/50 turns.
 
Suitable for clamp A-meters testing up to 100 A.
Option 10 Test cable 20A/1000V (black)  
Option 11 Test cable 20A/1000V (red)  
Cable RS-232 RS-232, 2m  
IEEE488 cable 2m Double shielded 2m IEEE488 cable  
WinQbase Application SW for making database of meters and for automatic meter calibration.  
CALIBER SW module for automatic calibration of multimeters.  

Ordering information

M-141 Basic version with RS-232
M-141 GPIB Version with RS-232 and GPIB interface

 
created by Omega Design