AEMC DTR 8510 Ratiometer Tests Power, Voltage and Current Transformers

AEMC DTR 8510 High-Performance RatiometerThe AEMC DTR 8510 High-Performance Ratiometer is a portable digital ratio meter for testing power, voltage and current transformers.

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When connected to an uncoupled transformer, the AEMC DTR 8510 accurately measures the primary-to-secondary transformation ratio, while also indicating the polarity and excitation current.

AEMC Ohmmeters are Available for Rent from Protec

AEMC 6250 10A Micro-OhmmeterOhmmeters are an electronic device that measure electrical resistance, and come with different levels of sensitivity. Some are designed to measure low-resistance materials, while others measure higher resistance. The higher resistance the material has, the less current will pass through it.

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An ohmmeter is typically not used to measure resistance across an entire circuit, but rather through various parts of the circuit, although it can be used to test that a circuit is not broken.

AEMC 6250 Offers 7 Test Ranges for Precise Low Resistance Measurements

AEMC 6250 10A Micro-OhmmeterWith results within 0.05%, the AEMC 6250 10A Micro-Ohmmeter utilizing a four-lead Kelvin method, and features a four-input, manual-ranging meter with seven test current/resistance ranges for precise, low-resistance measurements from 0.1 microohm (μΩ) to 2,500 ohms (Ω) of inductive samples such as:

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  • Coils
  • Transformers
  • Motor windings
  • Resistive samples: Ground bonding, Coatings, Contact resistances


The AEMC 6250 10A Micro-Ohmmeter offers three test modes:

Inductive  – for a continuous test