- Direct 3-channel digital reading allows for testing of windings at a time.
- Very fast discharge time.
- High-contrast, large alphanumeric displays can be seen in bright sunlight.
- User-selectable maximum current range ensures protection of small transformers.
- Built-in demagnetization circuitry allows the operator to de-magnetize the transformer core upon completion of resistance testing, or as a stand-alone feature before SFRA testing or when the transformer is put back in service.
- The XWRM allows for test of transformers with on-load tap-changers and provides a “break-before-make” indicator, in the event of any discontinuity.
- For those users who choose to create an external interlock safety perimeter, a safety Emergency Stop is provided.Remote trigger switch is also provided for testing transformers with tap-changers.
- Internal flash memory allows for mass storage of dataset records, for later recall and analysis
| Technical Specifications | |||||||
| Power Supply | |||||||
| 115/230V AC, 50/60 Hz | |||||||
| Test Current | |||||||
| 25A, 10A, 5A, 1A, 100mA & 10mA | |||||||
| Open-Circuit Test Voltage: 60 VDC | |||||||
| Burden: 1500W | |||||||
| Accuracy | |||||||
| + ( 0.25 % of rdg + 0.25 % of FSD) | |||||||
| Resistance Measurement Range | |||||||
| Range Accuracy +(0.25% of FSD + 5.0μΩ ) for 0.1μΩ to 199.9 μΩ only | |||||||
| Test Current | Range (Ω) | Resolution (Ω) | Maximum Display (Ω) | ||||
| 25A | 10A | 1A | 100mA | 10mA | |||
| √ | 200uΩ | 0.01uΩ | 199.99uΩ | ||||
| √ | √ | 2mΩ | 0.1uΩ | 1.9999mΩ | |||
| √ | √ | √ | 20mΩ | 1uΩ | 19.999mΩ | ||
| √ | √ | √ | √ | √ | 200mΩ | 10uΩ | 199.99mΩ |
| √ | √ | √ | √ | 2Ω | 0.1mΩ | 1.9999Ω | |
| √ | √ | √ | 20Ω | 1mΩ | 19.999Ω | ||
| √ | √ | 200Ω | 10mΩ | 199.99Ω | |||
| √ | 2000Ω | 0.1Ω | 1999.9 Ω | ||||
| Test Current | Range (Ω) | Resolution (Ω) | Maximum Display (Ω) | |
| 5A | 4 mΩ | 0.1 µΩ | 4.0000 mΩ | |
| 40 mΩ | 1 µΩ | 40.000 mΩ | ||
| 400 mΩ | 10 µΩ | 400.00 mΩ | ||
| 4 Ω | 0.1mΩ | 4.0000 Ω | ||
| General | ||||
| Principle: 4 wire measurement | ||||
| Measurement Channel: 3 resistance & 1 current channel | ||||
| Temperature Channel: 2 Channel | ||||
| Temperature Range: 0 – 100 °C | ||||
| Display: LCD | ||||
| Indication: LED & veep during test on, & discharge | ||||
| PC Interface: USB | ||||
| Internal memory: 2000 test readings | ||||
| Dimensions: 368 mm(L) X 283 mm(W) X 188 mm(H) | ||||
| Printer: Inbuilt thermal printer | ||||
| Safety & Standards | ||||
| Ingress Protection: IP 54 | ||||
| CE Certification | ||||
| Safety: Compliant with IEC 61010-1 | ||||
| EMC: Compliant with IEC 61326-1 | ||||
| Environmental | ||||
| Conditions Operating Temperature: 0°C to 55°C | ||||
| Storage Temperature: -10°C to 60°C | ||||
| Humidity: 95% RH, Non condensing | ||||
| Physical Specifications | ||||
| Dimensions (L×W×D) mm: 525 x 437 x 213 | ||||
| Weight: 15 kg | ||||
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