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Hot Line Coil Winding Resistance Meter
DAC-HRE-1



DAC-HRE-1 is a high-precision resistance measuring instrument designed for evaluating the operating conditions of motors, transformers, coils, and chokes.
It can conduct temperature rise tests on coils while applying voltage, allowing for real-time monitoring of performance.
Temperature values are automatically calculated and displayed from the measured resistance values.
DAC-HRE-1 is an essential tool for ensuring the reliability and efficiency of electrical products.

Conventional power-cutting method
Coil winding resistance is generally measured with the motor turned off.
This power-cutting method assumes a natural logarithmic change in resistance after the motor is stopped, which does not always match actual conditions. It also requires much time for reading resistance for many points to plot the complete characteristic curves until the data is saturated.


⇒Resistance measurement with DAC-HRE-1
DAC-HRE-1 can measure resistance and temperature of windings without shutting down power.
It can give true data on energized windings easily and quickly, assuring high reliability of test data.
Use of DAC-HRE-1 can minimize the testing time and greatly contribute to quality improvement, energy-saving product development, and compliance with safety standards.

Features

■　Accurate data can be obtained by directly reading real resistance while the winding is in operation.

■　User-friendly operation by manual or PC software.

■　Automatically calculates and displays temperature either in Fahrenheit or Celsius.

■　Resistance-temperature conversion coefficient for copper wire (234.5) is memorized in the CPU. Other coefficient, such as for aluminum, can be input through the numerical keys.

■　Complies with JIS C5311 (IEC 1007) for testing transformers used in electronic equipment.

Test Specimen

Motors, Transformers, Coils, Chokes and etc.

Options

Printer



It is possible to print out measured values and temperature conversion values by connecting the printer directly with DAC-HRE-1.
Print-out every given time is available with an interval mode.
Size : W93xH70xD125(mm)
Weight: Approx. 265g

DC Blocking capacitor box

DAC-CHR-1B is one of option Capacitor Boxes which can use by simple connection. Select an appropriate capacitor range in accordance with testing current.
Built-in Capacitor : Electrolytic Capacitor
Maximum-allowed-current value ：2A, 7A, 23A (one-each capacitor built-in)
Size : W210xH133xD160(mm)
Weight: Approx. 3kg

DC Blocking capacitors

Combining capacitors 2A, 7A, 23A and 45A, customized capacitor boxes (single/Three-phase) are available depending on your test specifications.

Catalog

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