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Calibration Business Division

PROMET

Resistance measurement = PROMET

High-precision micro-ohm measuring systems with adjustable DC test current for determining resistances on circuit breakers or inductive loads such as transformers, for example. The high-precision ohm meters of the PROMET series are used to determine very low electrical resistances in the µΩ range. The adjustable test current of up to 600 A in combination with a four-wire measuring method delivers measurement results which meet stringent accuracy requirements. State-of-the-art power electronics coupled with a robust design guarantee excellent reliability for use as a portable device in switching stations and industrial environments. Typical applications include determining the contact resistance of switchgear devices and determining the resistance on inductive loads such as transformers

Key Specifications

  • High-precision ohm meter with an adjustable test current of up to 100 A.
  • The measuring device is equipped with a rechargeable battery for portable use in switching stations and industrial environments.
  • PROMET L100 can also be used to determine the winding resistances of transformers, motors and
    instrument transformers.