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Hot Line Coil Winding Resistance & Temperature Meter
DAC-HRT-1
DAC-HRT-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-HRT-1 is an essential tool for ensuring the reliability and efficiency of electrical products.
DAC-HRT-1 complies with the following standards:
■ IEC 60279 (Normative reference of IEC 60034-1), JIS C 4034-1:
Measurement of the winding resistance of an A.C. machine during operation at alternating voltage.
■ IEC 1007, JIS C5311:
Measurement procedures for transformers and inductors for use in electronic and telecommunication equipment.
Advantage of resistance measurement Without Operation Stop
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-HRT-1
It can give true data on energized windings easily and quickly, assuring high reliability of test data.
Use of DAC-HRT-1 can minimize the testing time and greatly contribute to quality improvement, energy-saving product development, and compliance with safety standards.
Features
Mode DAC-HRT-1
■ Accurate data can be obtained by directly reading both real resistance and temperature 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.
■ Multi-channel measurement of up to 10 points is available with the optional channel selection box (DAC-SCB-2).
■ The optional temperature sensor (DAC-PT-100) can automatically input the ambient temperature int the instrument.
■ Complies with JIS C5311 (IEC 1007) for testing transformers used in electronic equipment.
Test Specimen
Motors, Transformers, Coils, Chokes and etc.
Options
PT sensor Model DAC-PT-100
Ambient temperature is automatically taken in by connecting the sensor with DAC-HRT-1.
Measuring range: -50 to 150 ℃
Accuracy : ±0.5 ℃
Connector type : R05-P6F
Selection control box Model DAC-SCB-2
By combining DAC-SCB-2 with DAC-HRT-1, a sequential test of max 10 different specimens or test points is available.
The number of channels : 10 channels
Testing Power Capacity : AC250V 15A or 450V 10A
Power Source : AC100V/200V ±10% 50/60Hz
Size & Weight : W430xH200xD385mm, Approx. 16kg
DC Blocking capacitor box DAC-CHR-1B
DAC-CHR-1B is one of option Capacitor Boxes which can use by simple connection. (2A, 7A and 23A capacitors built-in)