
The unit’s dual resistance-reading input channels can measure two winding resistances simultaneously, and four-wire (Kelvin) connections provide high accuracy and require no lead compensation. The WRM-10P provides stable resistance readings of very large transformers by utilizing a 36 VDC power supply capable of providing up to 10 A test current. The resistance reading of a 100 MVA transformer can be achieved in 5 minutes or less. The unit’s power supply is cooled by heavy-duty fans designed for continuous operation.
INPUT POWER | 100-120 VAC or 200-240 VAC (factory preset), 50/60 Hz |
RESISTANCE READING RANGE | 1 micro Ohm - 2000 Ohms |
ACCURACY | 1 - 19,999 micro Ohms: ±0.5% reading, ±1 count 20 - 999 milli Ohms: ±1% reading, ±1 count 1 - 2000 Ohms: ±1.5% reading, ±1 count |
TEST VOLTAGE | 36 VDC max |
TEST CURRENT RANGE | Auto range, 10 A max |
DISPLAY | Back-lit LCD Screen (20 characters by 4 lines); viewable in bright sunlight and low-light levels |
PRINTER | 2.5-inch wide built-in thermal printer |
KEYPAD | Rugged membrane keypad (10 alpha-numeric keys, 6 function keys) |
INTERNAL TEST RECORD STORAGE | Stores 63 test records of 48 readings each |
COMPUTER INTERFACE | One RS-232C port |
PC SOFTWARE | Windows®-based software is included |
SAFETY | Designed to meet IEC61010 (1995), UL61010A-1, CSA-C22.2 standards |
ENVIRONMENT | Operating: -10° to +50°C (+15° to +122°F); Storage: -30° to +70°C (-22° to +158°F) |
HUMIDITY | <90% RH @ 40°C (104°F) non-condensing |
ALTITUDE | 2000 m (6,562 ft) to full safety specifications |
DIMENSIONS & WEIGHT | 17” L x 10 ½” W x 12 1/2 ”H; Weight: 27 lbs (12 kgs) |
CABLES INCLUDED | Three 50’ (15 m) test cables, ground cable, power cord and cable bag |
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