Description
The WM-01/03 TRMS Power Analyzer is a versatile, compact power measurement device designed for precision testing in both AC and DC systems. Equipped with True RMS voltage, current, and wattage measurement, it ensures accurate readings even with complex, non-linear loads. Its automatic range selection for both power and voltage simplifies testing, while its high-resolution numerical LCD display provides clear visualization of readings, including power (W), voltage (V), current (A), frequency (Hz), and power factor (PF).
With memory capabilities (WM-03 version) to log up to 1012 record sets, and RS-232 computer interface for data transfer, this analyzer is ideal for research, development, quality control, and field maintenance. The unit is portable, lightweight, and can be powered via batteries or AC adapter, making it suitable for both lab and on-site applications. Additional functions such as max hold, datalogging, and direct PF calculation enable detailed analysis of electrical systems and efficient power management.
Specifications
General Specifications:
| Memory Size: (for WM-03 only) |
1012 x 4 |
| Memory Type: (for WM-03 only) |
Non-volatile |
| Memory Life: (for WM-03 only) |
100,000 times of WRITE |
| Numerical Display: |
3 1/2 digits LCD |
| Over Range Indication: |
OL on LCD |
| Sampling Rate: |
2.5 times/sec. |
| Power Source: |
Eight 1.5V AA batteries |
| Power Consumption: |
22 mA approx. |
| Operating Temperature: |
0~40°C |
| Operating Humidity: |
Less than 80% |
| Dimension: |
352(L)x300(W)x100(H)mm
13.9″(L) x 11.8″(W) x 3.9″ (H) |
| Weight: |
1.637 Kg (approx.)
3.6 lbs (approx.) |
| Accessories: |
AC adapter x 1
Power cable x 1
Battery 1.5V x 8 (installed)
RS232 cable x 1
Users manual x 1
Software CD x 1 |
Electrical Specifications: (23℃±5℃)
Watt:(Auto Range, AC+DC, Crest Factor < 5)
| Range |
Resolution |
Accuracy
(40~1KHz) |
Input |
| 200 |
0.1W |
0.9% of rdg ± 5dgts |
0~300V, 0~20A,
40~ 1KHz, PF=0~1 |
| 2000 |
1W |
Voltage:(True RMS, Auto Range, AC+DC, Crest Factor < 5)
| Range |
Resolution |
Accuracy
(0~5KHz) |
Overload Protection |
| 200 |
0.1V |
0.5% of rdg ± 4dgts |
1000VDC/750VAC |
| 750 |
1V |
Current: (True RMS, AC+DC, Crest Factor < 5)
| Range |
Resolution |
Accuracy
(0~5KHz) |
Overload Protection |
| 2A |
0.001A |
0.5% of rdg ± 4dgts |
20A, fused |
| 20A |
0.01A |
PF:(Direct Calculation from W, V, A) PF = Watt / (V * A)
Frequency:(Sensitivity 5V)
| Range |
Resolution |
Accuracy |
| 40~ 20KHz |
1Hz~10Hz |
0.5% of rdg ±2dgts |
