M-133i One-phase electric power/energy calibrator
Model M-133i master unit is one phase electric power/energy calibrator. The unit creates also master unit in three-phase power/energy calibartion systems. 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.
Against full version M-133 the "light" version doesnot offer non-sinusoidal output wavefrmes. Ranges and accuracies of M-133i version sinus output are identical to M-133 model features.
Three-phase electric power/energy calibration system can be optionally built-up using one M-133i master unit and two M-133if 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 phase voltages is 560 VAC. Current outputs can be joined together offering total range to 90 A AC/DC.
Summary specification
| 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 [%]
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 |
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 |
