Multi-Function voltage, current calibrator
Model MC140i

Powertek
UK Tel: +44 1788 519911
US Tel: +1 631 744 0294
Email : info@powertekuk.com

return to homepage | info@powertekuk.com | contact us

MC140i Multifunction voltage and current calibrator

click to enlarge
Multifunction calibrator MC140i is ideal for calibration of voltmeters, ammeters, DMMs and panel meters.

  • AC/DC voltage 1uV to 1000V

  • Current 50uA  to 1000A using test coil

  • Deviation control along readout

  • 0.0035% basic dc accuracy

  • 0.03% basic ac accuracy

  • Supplied with RS232 interfaces

  • UKAS/NIST Traceable


Basic parameters

The basic function of the MC140i calibrator is accurate generation of calibrated DC/AC voltage in the range from 0 µV to 1000 V and DC/AC current in the range from 0 to 20 A . Using a 50-turn coil the current range can be extended from 50 µA to 1000 A.  The best accuracy of the calibrator on DC voltage ranges is 0.0035%, on AC voltage ranges 0.03%, on DC current ranges 0.013% and on AC current ranges 0.055%.  Maximum frequency range is from 20 Hz to 100 kHz for harmonic output waveform.  For calibration of thermometers and temperature regulators, the MC140i simulates the temperature sensor.   The MC140i Calibrator is able to simulate all TC sensors of the R, S, B, J, T, E, K and N types as well.  Compensation of the TC cold junction is made by entering value from the keyboard.


Using the MC140i

MC140i Calibrator is equipped with a number of other functions which make it an attractive and useful instrument.  Among them the possibility to set relative deviations from the actual value of the selected output signal, displaying of the output signal uncertainty, internal calibration procedure and more.  The calibrator's control and indication uses a large area luminescence display on which all necessary information is made available.  The control is performed through simple menus.  Moreover, frequently used functions have firmly assigned keys for direct control.  As standard calibrator is equipped with RS-232 serial port making it possible to be controlled by personal computer.  The MC140i calibrator can be included into Powertek's WinQbase software calibration system.
.

MC140i Specifications

DC/AC voltage

range
% of value
+ % of range
% of value
+ % of range
% of value
+ % of range
% of value
+ % of range
 
DC
20 Hz - 10 kHz
10 kHz - 50 kHz
50 kHz - 100 kHz
0 mV - 20 mV **
0.05 + 0.0 + 10 µV
0.20 + 0.05 + 20 µV
0.20 + 0.10 + 20 µV
0.20 + 0.10 + 20 µV
20mV - 200mV
0.01 + 0.0 + 10 µV
0.1 + 0.03 + 20 µV
0.15 + 0.05 + 20 µV
0.15 + 0.05 + 20 µV
200 mV - 2 V
0.003 + 0.0008
0.025 + 0.005
0.05 + 0.01
0.05 + 0.01
2 V - 20 V
0.003 + 0.0005
0.025 + 0.005
0.05 + 0.03
0.05 + 0.03
20 V - 240 V
0.003 + 0.0005
0.025 + 0.010
--
--
240 V - 1000 V
0.005 + 0.005
0.03 + 0.02 *
--
--
* valid for f < 1000 Hz
** 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
% of value
+ % of range
 
DC
 20Hz-1kHz
1kHz - 5kHz
 5kHz-10kHz
1 µA - 200 µA
0.05 + 0.0 + 20 nA
0.15 + 0.0 + 20 nA
0.30 + 0.10 + 20 nA
--
200 µA - 2 mA
0.02 + 0.005
0.07 + 0.01
0.20 + 0.05
0.20 + 0.05
2 mA - 20 mA
0.01 + 0.003
0.05 + 0.005
0.20 + 0.05
0.20 + 0.05
20 mA - 200 mA
0.01 + 0.003
0.05 + 0.005
0.20 + 0.05
0.20 + 0.05
200 mA - 2 A
0.015 + 0.005
0.05 + 0.005
--
--
2 A - 20 A
0.02 + 0.010
0.10 + 0.03
--
--

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 or 50.

Thermocouple sensor simulation

types
R, S, B, J, T, E, K, N
range of temperature
-250 °C - 1820 °C
temperature unc.
0.4 °C - 4.0 °C
temperature scale
ITS 90, IPTS 68

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

Option 140-50
Current coil with 25 and 50 turns.
 
Suitable for clamp ammeters and split core CTs, testing up to 1000 A. Maximum recommended output current into the coil is 20 Arms.
140-50
Option 10
Test cable 20A/1000V (black)
  
Option 11
Test cable 20A/1000V (red)
  
Cable RS-232
RS-232, 2m
  
WinQbase
Application SW for making database of meters and for automatic meter calibration.
  
CALIBER
SW module for automatic calibration of multimeters.
  

 

return to homepage