MC142 Multifunction Calibrator 15 ppm basic accuracy

Powertek
UK Tel: +44 1788 519911
US Tel: +1 631 615 6279
Email : info@powertekus.com
Email : info@powertekuk.com

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Multifunction calibrator MC142 is a precision voltage, current and power calibration source serving as a measurement standard in calibration laboratories and production lines; where verification of electrical measurement equipment & sensors is required.  It can be used for calibration and adjustment of meters measuring voltage, current, power, resistance, capacitance and frequency.  Internal harmonic and non-harmonic signals make it possible to test electrical performance of meters using signals with various crest factors. Frequency modes enable selection of frequency, amplitude and duty cycle of the output signal. These are suitable for basic calibration of digital and analog oscilloscopes along with transient recorders. The calibrator is equipped to measure temperature with TC and RTD temperature sensors.  Its built-in multimeter can be used independently or simultaneously with the calibrator output.  Testing of transducers of various types, regulators and sensors can be performed, without the necessity to use any other measuring instrument.

 

MC142 multifunction calibrator is available
 as bench-top or 19" rack housing

Links

MC142 datasheet | MC142 User Manual | MC142 Brochure| MC142 Options/Accessories

Front Panel Display | Front panel terminals


 

Basic parameters

Basic function of the calibrator is the generation of calibrated DC/AC voltage in the range from 0V to 1000V and DC/AC current in the range from 0 to 30A. Using a 50-turn coil the current range can be extended to 1500A. The best accuracy of the calibrator on DC voltage ranges is 15ppm, on AC voltage ranges 250ppm, on DC current ranges 130ppm and on AC current ranges 550ppm. Maximum frequency range is from 20Hz to 100kHz for harmonic output waveform. The calibrator is equipped with a function generator for periodic non-harmonic signals with defined crest factor, making it possible to test sensitivity of multimeters to distorted signals.  In addition the calibrator simulates resistance and capacitance,  the resistance range from 0.0 Ohm to 1000MOhm and capacitance from 1nF to 100F can be simulated exceeding  the required precision for calibration of common hand-held multimeters. Basic accuracies are resistance ranges 150ppm and capacitance ranges 0.1%.

Frequency function of the calibrator makes it possible to generate a square wave signal with adjustable and calibrated duty ratio, frequency and amplitude in range from 1mV to 10V in the frequency band up to 10kHz. In the mode HF the square wave signal up to 20MHz with a very low rise-time can be generated. The frequency functions are suitable for the calibrations of corresponding frequency ranges of the multimeters and for calibration of the channel sensitivities and time bases of the oscilloscopes as well.

For calibrations of DC and one-phase AC power-meters and energy meters, the power  energy mode is determined. Output voltage can be set up to 240V and output current up to 20A with the power factor in range from -1 to +1 in the frequency band from 40Hz to 400Hz. Current capability of the voltage output is 30mA. It allows calibration of analogue power-meters which have higher current draw. For calibrations of the thermometers and temperature regulators, the function of simulation of temperature sensors is determined. Calibrator is able to simulate all common used Pt and Ni resistance sensors and TC sensors of the R, S, B, J, T, E, K and N types as well. Compensation of the TC cold junction is made either by entering value from the keyboard, or automatically by measuring the ambient temperature with Pt-100 sensor. The precision of the simulated resistance and TC sensors depends on set value and type of the sensor. For resistance sensors uncertainty band is in the range from 0.04C to 0.5C, for TC sensors from 0.4C to 4.0C.

Built-in multimeter

The MC142 internal multimeter has a basic capability to measure DC current to 20mA, DC voltage to 10V, resistance to 2kOhm and frequency to 15kHz as standard. With accuracy of 100ppm it enables measurement of output signals of various types of transducers. With external TC or resistance temperature sensors, temperature can be scaled, as can  external strain gauge sensors, for pressure, torsion, strength, etc. actual units can be measured and displayed.
 

Calibrator  Tester

Calibrator can be used in simultaneous mode, i.e. selected output signal is generated and the response of the device under test is measured at the same time by internal multimeter. Programmable capability of the calibrator enables setting of 10 steps defined by output signal function and output value on source side and awaiting response of DUT measured by internal multimeter including allowed limits of the DUT. The testing can run automatically.
 

Ease of use

MC142 Calibrator is equipped with a number of other functions which make its use easier. Among them belong possibility to set relative deviations from the actual value of the selected output signal, displaying of the output signal uncertainty, internal calibration procedure and others. Concept of the calibrator's control and indication uses a large area luminescence display on which all necessary information is concentrated. The control is perform by selection from the menu. Moreover, frequently used functions have firmly assigned keys with direct control. Normally, the calibrator is equipped with the GPIB bus and with the RS-232 serial port making it possible to be controlled by personal computer.

The calibrator can be included into POWERTEK WinQbase/CALIBER software calibration systems.

MC142 calibrator is derived from previous successful model MC-140. Against MC-140 model the new MC142 offers extended ranges and higher accuracy.

Specifications


DC/AC voltage sine output

Voltage range:  0 to 1000V
Frequency range:   20Hz to 100kHz
Resolution:    6½ dig.

 

Range % of value + uV % of value + uV % of value + uV % of value + uV
  DC 20Hz - 10kHz 10kHz - 50kHz 50kHz - 100kHz
0mV - 20mV 0.005 + 6 0.2 + 30 0.20 + 30 1.0 + 30
20mV - 200mV 0.0015 + 8 0.1 + 80 0.15 + 120 0.3 + 120
200mV - 2V 0.0012 + 10 0.018 + 100 0.05 + 200 0.2 + 1000
2V - 20V 0.0010 +50 0.018 + 1000 0.05 + 6000 0.2 + 10000
20V - 240V 0.0015 + 500 0.018 + 10m - - - -
240V - 1000V 0.005 + 20000 0.03 + 200m* - - - -

 

 
DC/AC current sine output
Current range:  0 to 30A
Frequency range: 20Hz to 10kHz
Resolution Setting: 6½ dig.

  

 

Range

% of value + A

% of value + A % of value + A % of value + A
  DC 20Hz - 1kHz 1kHz - 5kHz 5kHz - 10kHz
1A - 200A 0.05 + 0.02   0.15 + 0.02 0.30 +0.22 - -
200A - 2mA 0.02 + 0.1  0.07 + 0.2 0.20 + 1 0.50 + 1.4

2mA - 20mA

0.01 + 0.6 0.05 + 1 0.20 + 10 0.50 + 14
20mA - 200mA 0.01 + 6 0.05 + 10 0.20 + 100  0.50 + 140 
200mA - 2A 0.015 + 100 0.05 + 100

- -

- -

2A - 20A 0.02 + 2 000 0.10 + 6000  - - - -
20A - 30A ** [0.02 + 0.003* (I-20)] + 2000 [0.1 + 0.003* (I-20)] + 6000  - - - -
 
*
I is set current in A. Additional accuracy with Opt.140-50 Current coil is 0.3%. Multiplying coefficient is 25 or 50. 
 ** Maximal period for continuous current 30A is 30s. Maximal period for continuous current 20A is 60s.  
 

Function Shape (non-harmonic signals)

Voltage range: 1mV to 200V
Current range: 100uA to 2A
Wave form: square positive, negative, symmetrical, saw A, B, triangle limited sin
Peak value accuracy:  0.3% + 50uV
Displayed values: peak, calculated rms
Frequency range:  to 1000Hz for voltage, to 120Hz for current
The lowest frequency for square waveforms is 0.1Hz, for other waveforms 20Hz.
 

Resistance and Capacitance

Resistance range:  0 to 1000 MΩ
Capacitance range: 900pF to 100F
Resolution:  4 dig.

                                                        

Function Frequency

Total frequency range: 0.1Hz to 20MHz
Resolution: 6 dig. 
Accuracy of frequency:  0.005 %
Frequency function modes:     PWM, fmax = 100kHz, square waveform with calibrated ratio and amplitude
   HF, fmax = 20MHz, square waveform with calibrated frequency and amplitude
PWM mode (0.1 Hz to 100 kHz):

                                      

Voltage range % of value + uV
1mV - 20mV 0.2 +50
20mV - 200mV 0.1 + 50
200mV - 2V 0.1
2V - 10V 0.1
HF mode  (0.1 Hz to 20 MHz):  
   
Output impedance:  50Ohm
Output waveform: square symmetrical
Amplitude: 4V pk-pk
Range of amplitude setting:  0, -10, -20 dB, -30dB +/- 1dB
Amplitude accuracy: 10%
   
Rise time:  < 5ns

RTD temperature sensor simulation

Type

Temperature range

200 - +250oC

Temperature range

250 850oC

Pt 100 

0.1oC

0.1oC

Pt 200 

0.1oC

0.2oC

Pt 1000 

0.2oC

0.4oC

Ni 100 

 0.07oC

--oC

 TC temperature sensor simulation

J
 range [
oC]
 -50 0 0 - 400 400 - 1000 1000 - 1767
accuracy [oC] 2.0 1.5 0.9 1.0
S range [oC] -50 - 0 0 - 250 250 - 1400 1400 - 1767
accuracy [oC] 1.8 1.5 1.0 1.0
B range [oC] 400 - 800 800 - 1000 1000 - 1500 1500 - 1820
accuracy [oC] 1.9 1.1 1.0 0.9
J range [oC] -210 - -100 -100 - 150 150 - 700 700 - 1200
accuracy [oC] 0.6 0.4 0.3 0.4
T range [oC] -200 - -100 -100 - 0 - 100 100 - 400
accuracy [oC] 0.6 0.4 0.3 0.4
E range [oC] -250 - -100 -100 - 280 280 - 600 600 - 1000
accuracy [oC] 0.9 0.3 0.2 0.2
K range [oC] -200 - -100 -100 - 480 480 - 1000 1000 - 1372
accuracy [oC] 0.7 0.4 0.4 0.5
N range [oC] -200 - -100 -100 - 0 0 - 580 580 - 1300
accuracy [oC] 1.0 0.5 0.5 0.5

Build in process multimeter

Function Range Accuracy (%) Resolution/Range
V DC 0 - 12V 0.01 + 300uV 100uV
mA DC 0 - 25mA 0.015 + 150nA 100nA
mv DC 0 - 2V 0.02 + 7uV 0.1 - 10uV
Resistance 0 - 2.5kOhm 0.02 + 10mOhm 1 - 10mOhm
Frequency 1Hz - 15kHz 0.005 10uHz - 100mHz
Temperature TC -250 - 1820oC 0.4 - 2.5oC 0.01oC
Temperature Pt -200 - 850oC 0.1oC 0.1oC

General data

Warm up time:  60 min
Working temperature range:  23 10oC
Stocking temperature range: 0 to 40oC at RH bellow 80 %
Reference temperature:  23  2oC
Dimensions: 450 x 480 x 150 mm
Weight: 23kg
Power line: 115/230 V  
 

Accessories (included)

Power line cable 1 pc
Operation manual, CD 1 pc
Option 10/11 Test wire banana-banana 1000V-20A 2 pcs
Option 40, 60, 70, 80 Cable adapters  1 pc each
Spare fuse 1 pc
RS232 cable 1 pc
Options (extra ordered)
Option 140-50 Current coil 25/50 turns Calibration of clamp ammeters
Option 10 Test cable 20A/1000V (black) 1m length
Option 11 Test cable 20A/1000V (red) 1m length
Option 20 Test cable BNC BNC 1m length
Option 30 Test cable BNC banana 1m length
Option 40 Cable adapter Canon 25 / 2 x bananan, 1m DC current/voltage measurement
Option 60 Cable adapter Canon 25 / 4 x banana, 1 m 4W resistance measurement
Option 70 Cable adapter 4W resistance simulation
Option 80 Cable adapter Canon 25 / 2 x banana mV DC and TC temperature sensor measurement
Option 90 External Pt temperature sensor Pt 1000 probe
Option 100 Cable adaptor for distance change between panel terminals to 3/4 inch
Option 140-01 Cable adapter with metal sheet for UUT easy connection With built in temperature sensor
Cable GPIB GPIB cable 1m length
Cable RS-232 RS-232, 2m 1.5m length
WinQbase Database application software  
CALIBER Application SW for automated and semi automated calibrations.  

 

Links

MC142 datasheet | MC142 User Manual | MC142 Brochure | MC142 Options/Accessories

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