TRM-403 Winding Resistance Meter

18 680,00 € tax incl.
  • Auto-discharge circuit for operator safety
  • Demagnetizes transformer after test
  • Selectable test current from 1A to 40A
  • RS-232C, USB, and Bluetooth computer interfaces
  • Built-in thermal printer
  • 4 channels
  • Perform three phase test on a transformer without the need to switch cables
  • Can provide individual Delta winding resistance values
  • Can provide individual Wye (with no neutral) winding resistance values

    The TRM-403 is a  three phase transformer winding resistance meter that allow the user to connect all test cables to the transformer bushings. The unit will then measure the transformer resistance value for each of the phases without the need to disconnect and reconnect cables for each phase. The TRM-403 can provide a fast and stable reading of very large transformers by utilizing a 60Vdc power supply. It is capable of outputting a selectable test current from 1A to 40A. Since the TRM-403 can accurately measure resistance from 1 micro-ohm to 500 Ohms, it can be used as a micro-ohm meter to measure EHV circuit breaker contact resistance, or for any low resistance measuring application.
TYPE Special-purpose test equipment, portable, micro-ohmmeter
CONTROL Heavy duty keypad: 10 number keys, 6 function keys
SIZE 21" wide by 17" high by 9" deep
WEIGHT 15,8kg.
4 input channels for measuring resistance
RESISTANCE RANGE 1 micro-ohm to 500 ohms
ACCURACY 1-19,999 micro-ohm: ± 0.5% of Reading, ± 1Count
20-999 milliohms: ± 1.0% of Reading, ± 1Count
1-500 ohms: ± 2.0% of Reading, ± 1Count
CURRENT, VOLTAGE RANGES Auto Ranging, 40 Amperes Max
60 Vdc charging, 18V DC max during measurement
DISPLAY Backlit LCD  (128x64 pixels)
MEMORY Store 256 records in Flash EEPROM, up to 111 readings per record
PC SOFTWARE Windows® 95/98/2000/NT/XP - based software included
PRINTER Thermal Printer, 2.5-inch
CABLES 4 sets of 50' Test Cables, Ground Cable, Power Cord and Cable Bag
OPERATING POWER 85 to 132 V ac / 200-240 V ac, 50/60 Hz
ENVIRONMENT Operating: -10ºC to 50ºC (15º to +122º F)
Storage: -30ºC to 70ºC (-22º to +158º F)
OPTIONS Shipping Case
WARRANTY One Year Parts & Labor, Post Warranty Service Contract Available

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