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MC142 Multifunction Calibrator 15 ppm basic accuracy |
Powertek |
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Multifunction calibrator MC142 is a precision calibration source and measurement standard used in calibration laboratories and in production lines where verification of electrical measurement equipment & sensors is required. It can be used for calibration and adjustment of meters from the field of voltage, current, resistance, capacitance and frequency. Installed harmonic and non-harmonic signals make it possible to test electrical parameters of meters using a signal with various crest factor. Frequency modes enable to set frequency, amplitude and duty ratio of the output signal. They are suitable for basic calibration of oscilloscopes. The calibrator is equipped with possibility to measure temperature with TC and RTD temperature sensors. Its built-in multimeter can be used independently or in simultaneous operation with source part of the calibrator together. Testing of transducers of various types, regulators and sensors can be performed with it, without the necessity to use any other measuring instrument. |
MC142 multifunction calibrator is available |
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Basic parameters |
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Basic function of the calibrator is the generation of calibrated DC/AC voltage in the range from 0 µV 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 the function of generation the periodic non-harmonic signals with the defined crest factor. Thus it makes possible to test sensitivity of multimeters to distorted signals. Next function of the calibrator is simulation of resistance and capacity. With the calibrator, the resistance in range from 0 Ohm to 1000 MOhm and capacitance from 1 nF to 100 µF can be simulated with the enough precision for calibration of common used hand-held multimeters. Basic accuracy of the resistance ranges is 150ppm, of the capacitance ranges it is 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 to calibrate also analogue power-meters which has usually higher consumption. 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 0.04°C to 0.5°C, for TC sensors from 0.4°C to 4.0°C. |
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Built-in multimeter |
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Internal multimeter with basic capability to measure DC
current to 20mA, DC
voltage to 10V, resistance to
2kOhm and frequency to
15kHz is standard part of the calibrator. With accuracy of 100ppm it
enables to measure output signals of various types of transducers. With
external TC or resistance temperature sensor temperature can
be scan and similarly, with external
strange gauge sensors pressure, torsion, strength, etc. can be
measured and displayed. |
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Calibrator – Tester |
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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. |
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User comfort |
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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 MC142 new one offers extended ranges and higher accuracy. |
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SPECIFICATIONS |
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| Voltage range: | 0 to 1000 V |
| Frequency range: | 20 Hz to 100 kHz |
| Resolution: | 6½ dig. |
| Range | % of value + uV | % of value + uV | % of value + uV | % of value + uV |
| DC | 20 Hz - 10 kHz | 10kHz - 50 kHz | 50 kHz - 100 kHz | |
| 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 |
| 200 mV - 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* | - - | - - |
| Current range: | 0 to 30 A |
| Frequency range: | 20 Hz to 10 kHz |
| Resolution Setting: | 6½ dig. |
| Range |
% of value + µA |
% of value + µA | % of value + µA | % of value + µA |
| DC | 20 Hz - 1 kHz | 1 kHz - 5 kHz | 5 kHz - 10 kHz | |
| 1 µA - 200 µA | 0.05 + 0.02 | 0.15 + 0.02 | 0.30 +0.22 | - - |
| 200 µA - 2 mA | 0.02 + 0.1 | 0.07 + 0.2 | 0.20 + 1 | 0.50 + 1.4 |
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2 mA - 20 mA |
0.01 + 0.6 | 0.05 + 1 | 0.20 + 10 | 0.50 + 14 |
| 20 mA - 200 mA | 0.01 + 6 | 0.05 + 10 | 0.20 + 100 | 0.50 + 140 |
| 200 mA - 2 A | 0.015 + 100 | 0.05 + 100 |
- - |
- - |
| 2 A - 20 A | 0.02 + 2 000 | 0.10 + 6000 | - - | - - |
| 20 A - 30 A ** | [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 30 A is 30 s. Maximal period for continuous current 20 A is 60 s.
Function Shape (non-harmonic signals)
| Voltage range: | 1 mV to 200 V |
| Current range: | 100uA to 2 A |
| Wave form: | square positive, negative, symmetrical, saw A, B, triangle limited sin |
| Peak value accuracy: | 0.3 % + 50 uV |
| Displayed values: | peak, calculated rms |
| Frequency range: | to 1000 Hz for voltage, to 120 Hz for current |
| The lowest frequency for square waveforms is 0.1 Hz, for other waveforms 20 Hz. | |
Resistance and Capacitance
| Resistance range: | 0 to 1000 MΩ |
| Capacitance range: | 900pF to 100 µF |
| Resolution: | 4 dig. |
Function Frequency
| Total frequency range: | 0.1 Hz to 20 MHz |
| Resolution: | 6 dig. |
| Accuracy of frequency: | 0.005 % |
| Frequency function modes: | - PWM, fmax = 100 kHz, square waveform with calibrated ratio and amplitude |
| - HF, fmax = 20 MHz, square waveform with calibrated frequency and amplitude | |
| PWM mode (0.1 Hz to 100 kHz): | |
| Voltage range | % of value + uV |
| 1 mV - 20 mV | 0.2 +50 |
| 20 mV - 200 mV | 0.1 + 50 |
| 200 mV - 2 V | 0.1 |
| 2 V - 10 V | 0.1 |
| HF mode (0.1 Hz to 20 MHz): | |
| Output impedance: | 50 Ohm |
| Output waveform: | square symmetrical |
| Amplitude: | 4 V pk-pk |
| Range of amplitude setting: | 0, -10, -20 dB, -30 dB +/- 1 dB |
| Amplitude accuracy: | 10 % |
| Rise time: | < 5 ns |
RTD temperature sensor simulation
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Type |
Temperature range –200 - +250 oC |
Temperature range 250 – 850 oC |
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Pt 100 |
0.1 oC |
0.1 oC |
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Pt 200 |
0.1 oC |
0.2 oC |
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Pt 1000 |
0.2 oC |
0.4 oC |
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Ni 100 |
0.07 oC |
-- 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 - 12 V | 0.01 + 300 uV | 100 uV |
| mA DC | 0 - 25 mA | 0.015 + 150 nA | 100 nA |
| mv DC | 0 - 2 V | 0.02 + 7 uV | 0.1 - 10 uV |
| Resistance | 0 - 2.5 kOhm | 0.02 + 10 mOhm | 1 - 10 mOhm |
| Frequency | 1 Hz - 15 kHz | 0.005 | 10 uHz - 100 mHz |
| Temperature TC | -250 - 1820 oC | 0.4 - 2.5 oC | 0.01 oC |
| Temperature Pt | -200 - 850 oC | 0.1 oC | 0.1 oC |
General data
| Warm up time: | 60 min |
| Working temperature range: | 23 ± 10 oC |
| Stocking temperature range: | 0 to 40 oC at RH bellow 80 % |
| Reference temperature: | 23 ± 2 oC |
| Dimensions: | 450 x 480 x 150 mm |
| Weight: | 23 kg |
| 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 |
| 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 140-01 | Cable adapter with metal sheet for UUT easy connection | With built in temperature sensor |
| Cable GPIB | GPIB cable | 1 m length |
| Cable RS-232 | RS-232, 2m | 1.5 m length |
| WinQbase | Database application software | |
| CALIBER | Application SW for automated and semi automated calibrations. |
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