M-133 One-phase Electric Power/Energy Calibrator
Model M-133 master unit is one phase electric power/energy calibrator. It can supply unit under test with one phase accurate AC voltage and current with calibrated phase shift or DC voltage and current. Output voltage can be set in five ranges up to 280 V and output current in six ranges up to 30 A. Simulated electric power can be set independently in each phase. Frequency can be set in range from 20 Hz to 1 kHz with resolution 0.001 Hz to 0.01 Hz. Calibrator is equipped with 5 1/2 digital DC meter with DC ranges 20 mA or 10 V for direct calibrating of various types of power transducers.
M-133 calibrator offers two types of defined distortion of main sinusoidal output signal. The first distortion is based on adding defined amount of harmonic or interharmonic spectral components up to 5 kHz. The second type of distortion is based on amplitude modulation of output sinusoidal signal by sin or squarewave modulation signal in frequency range from 0.001 Hz to 50 Hz. Maximum depth of modulation is 30 %.
Three-phase electric power/energy calibration system can be optionally built-up using one M-133 master unit and two M-133f slave units. The slave units contain power stages of each additional phase output. They are fully controlled from master unit via rear panel special interface. Maximum output voltage between two voltage phases is 560 VAC. Current outputs can be joined together offering total range to 90 A AC/DC.
General technical data
| Voltage range (sin mode) | 1V to 280 V AC or DC |
| Current range (sin mode) | 30 mA to 30 A AC or DC |
| Resolution | 51/2 digit |
| Frequency range | 16 Hz to 1000 Hz |
| Frequency accuracy | 0.005 % (for 50/60 Hz synchronization to mains frequency can be set) |
| Frequency resolution | 0.001 Hz bellow 40 Hz, 0.01 Hz above 40 Hz |
| Distortion of votage output | < 0.05 % |
| Distortion of current output | < 0.1 % |
| Phase shift range | 0.00o to 359.99o |
| Power factor range | -1.000 to +1.000 |
| Total electric power range | 0.03 VA to 8400 VA |
| Total electric energy range | 0.03 VAs to 2333 VAhr |
| Time interval range | 1 s to 10000 s |
| Time interval accuracy | 0.01% + 0.1 s |
Specification
Sin mode
DC/AC Voltage (sin mode)
Range |
% of value+ % of range |
Max.
|
% of value+ % of range |
Max.
|
% of value+ % of range |
Max.
|
|---|---|---|---|---|---|---|
| DC | DC | 16 - 40 Hz 70 - 1000 Hz |
16 - 40 Hz 400 - 1000 Hz |
40 - 70 Hz | 40 - 400 Hz | |
| 1 - 10 V | 0.025 + 0.01 | 100 | 0.03 + 0.02 | 100 | 0.025 + 0.01 | 100 |
| 10 - 30 V | 0.025 + 0.01 | 200 | 0.03 + 0.02 | 200 | 0.025 + 0.01 | 200 |
| 30 - 70 V | 0.025 + 0.01 | 200 | 0.03 + 0.02 | 200 | 0.025 + 0.01 | 300 |
| 70 - 140 V | 0.025 + 0.01 | 200 | 0.03 + 0.02 | 200 | 0.025 + 0.01 | 300 |
| 140 - 280 V | 0.025 + 0.01 | 150 | 0.03 + 0.02 | 150 | 0.025 + 0.01 | 200 |
DC/AC current (sin mode)
Range |
% of value+ % of range |
Max.
|
% of value+ % of range |
% of value+ % of range |
Max.
|
Max.
|
|---|---|---|---|---|---|---|
| DC | DC | 16 - 40 Hz 70 - 1000 Hz |
40 - 70 Hz | 16 - 400 Hz | 400 - 1000 Hz | |
| 30 - 300 mA | 0.03 + 0.01 | 8 | 0.04 + 0.02 | 0.03 + 0.01 | 5.5 | 3.5 |
| 0.3 - 1 A | 0.03 + 0.01 | 8 | 0.04 + 0.02 | 0.03 + 0.01 | 5.5 | 3.5 |
| 1 - 2 A | 0.03 + 0.01 | 8 | 0.04 + 0.02 | 0.03 + 0.01 | 5.5 | 3.5 |
| 2 - 5 A | 0.03 + 0.01 | 5 | 0.04 + 0.02 | 0.03 + 0.01 | 3.5 | 3.5 |
| 5 - 10 A | 0.035 + 0.015 |
5 |
0.05 + 0.02 | 0.035 + 0.015 | 3.5 | 3.5 |
| 10 - 30 A | 0.04 + 0.02 | 5 | 0.06 + 0.02 | 0.04 + 0.02 | 3.5 | 3.5 |
Phase, power factor (sin mode)
Frequency (Hz) |
Accuracy dφ (°) |
|---|---|
| 16 - 40 Hz | 0.1 |
| 40 - 70 Hz | 0.05 |
| 70 - 400 Hz | 0.1 |
| 400 - 1000 Hz | 0.4 |
Accuracy of power factor: dPF = (1-cos(φ+dφ)/cos(φ))
DC/AC power (sin mode)
Accuracy of power is calculated from value of voltage, current and power factor.
Active power (W): dP = square root (dU2 + dI2 + dPF2 + 0.012) [%]
Reactive power (VAr): dP = square root (dU2 + dI2 + dPF*2 + 0.012) [%]
Apparent power (VA): dP = square root (dU2 + dI2 + 0.012) [%]
Where:
- dP is accuracy of power [%]
- dU is accuracy of voltage [%]
- dI is accuracy of current [%]
- dPF is accuracy of power factor (cos φ) [%]
- dPF* is accuracy of sin φ [%]
H/I mode – Harmonic/interharmonic products (not available in M-133i version)
| Fundamental harmonic frequency range | 16 Hz to 1000 Hz |
| Fundamental harmonic amplitude accuracy | 0.2 % of range |
| Frequency range of harmonic products | 32 Hz to 5000 Hz (2nd to 50 th order) |
| Frequency range of interharmonic products | 16 Hz to 1000 Hz |
| Max. number of harmonic products | 50 |
| Number of interharmonic products | 1 |
| H/I products amplitude range | max. 30 % of RMS fundamental harmonic amplitude |
| Amplitude resolution of H/I products | 0.001 % |
| Noise & Distortion | -60 dB |
Output amplitude accuracy
Range |
% of fundamental harmonic amplitude range |
% of fundamental harmonic amplitude range |
|---|---|---|
| 32 Hz to 3000 Hz | 3000 Hz to 5000 Hz | |
| 1.0000 V to 10.000 V | 0.1 | 0.2 |
| 10.0001 - 30.0000 V | 0.1 | 0.2 |
| 30.001 - 70.000 V | 0.1 | 0.2 |
| 70.001 - 140.000 V | 0.1 | 0.2 |
| 140.001 - 280.000 V | 0.1 |
0.2 |
| 0.030000 - 0.300000 A | 0.1 | 0.2 |
| 0.30001 - 1.00000 A | 0.1 | 0.2 |
| 1.00001 - 2.00000 A | 0.1 | 0.2 |
| 2.00001 - 5.00000 A | 0.2 | 0.4 |
| 5.0001 - 10.0000 A | 0.2 | 0.4 |
| 10.0001 - 30.0000 A | 0.4 | 0.8 |
Modulations – Flickes (not available in M-133i version)
| Fundamental harmonic frequency range | 16 Hz to 1000 Hz |
| Single harmonic (2-50) frequency range | 32 Hz to 5000 Hz |
| Modulation frequency range | 0.001 Hz to 50 Hz |
| Modulation depth | 0.000 to 30.000 % |
| Modulation depth resolution | 0.001 % |
| RMS amplitude accuracy | 0.2 % of range |
| Waveform of modulation signal | sin, rectrangular |
| Duty cycle ration of rectrangular modulation signal | 1 % to 99 % |
| Modulation depth accuracy | 0.2 % |
Built-in process multimeter
Function |
Range |
Accuracy |
Resolution |
|---|---|---|---|
| DC voltage | 0.0000 to +/-12.0000 V | 0.01% of value + 0.01% of range | 100 uV |
| DC current | 0.0000 to 25.0000 mA | 0.01% of value + 0.01% of range | 100 nA |
| Frequency | 1.00000 Hz to 15.0000 kHz | 0.005% | 10 uHz - 0.1 Hz |
Download data sheet here.
Accessories
Accessories (included)
| Power cable | 1 pc |
| Option 10/11 Test cable banana-banana 1m 1000V/30A red/black | 2 pc (6 pcs for three-phase system) |
| RS232 cable 1.5m | 1 pc |
| Spare fuse | 1 pc |
| Interface cable | 2 pcs (for three-phase system) |
| Option 133-01 High current adapter | 1 pc (for three-phase hsystem) |
| Operation manual, CD | 1 pc |
| Test report | 1 pc |
Options (extra ordered)
| Option 140-50 | Current coil x25, x50 |
| Option 10 | Test cable banana-banana 1000V/30A,1m,black |
| Option 11 | Test cable banana-banana 1000V/30A,1m,red |
| GPIB cable 2m | Double shielded 2m IEEE488 cable |
| POWER | Application SW for electric power transducers calibration |
