Inverter Hot Line Coil Resistance Meter SOKEN DAC-HIR-3
Inverter Hot Line Coil Resistance Meter
SOKEN DAC-HIR-3
SOKEN Inverter Hot Line Coil Resistance Meter DAC-HRI-3 can measure resistances of the coil winding of a motor driven inverter power supply (PWM) during applying voltage.
Generally, either the temperature measuring method which measures a partial temperature by using temperature sensor, or the resistance method which measures resistance and converts it by using temperature coefficient, is introduced to temperature rise test of motor. Comparing these 2 methods, the former one is easily influenced by an environmental temperature. DAC-HRI-3, introducing the later method, can measure resistance of the coil windings directly and obtain precise resistance values. Besides, DAC-HRI-3 can measure resistance without turning off the power, it is enable you to have the true temperature of a whole driven motor coil efficiently.
Test Materials
EV Motor
Brushless Motor
Compressor Motor for Air-Conditioner
Rerated Standard
JIS C4203 Single Phase induction motors
JEC 2137 Induction motor
JEC 60034-1 Rotating electrical machines – Part 1 : Rating and performance
Conversion to Temperature
Conversion to Temperature
Conversion to Temperature is possible by input the Initial Resistance value and initial Temperature value through PC by using sample software. Measured values with time are saved and displayed in an Excel Sheet.
Specifications
| Item | Value | |
|---|---|---|
| Measuring range : | 0.2Ω Range | : 0-0.2000Ω (Superimposed Current DC100mA) |
| 2Ω Range | : 0-2.000Ω (Superimposed Current DC100mA) | |
| 20Ω Range | : 0-20.00Ω (Superimposed Current DC10mA) | |
| 200Ω Range | : 0-200.0Ω (Superimposed Current DC1mA) | |
| 2000Ω Range | : 0-2000Ω (Superimposed Current DC0.1mA) | |
| Testing Voltage : | Max AC450V* | |
| *Max 700V type is available as option. (Model DAC-HRI-3 Type 700) | ||
| Frequency : | 10-400Hz | |
| Resolution : | Voltage Meter | : 0.1V |
| Resistance Meter | : 0.1mΩ (0.2ΩRange) | |
| Display : | Voltage Meter | : 4 digit |
| Resistance Meter | : 4 digit 2000FS | |
| Accuracy : | 2Ω/20Ω/200Ω | : ±0.3% FS |
| 0.2Ω Range | : ±0.5% FS | |
| Input impedance : | 0.2Ω/2Ω Range | : Approx. 1.5kΩ |
| 20Ω Range | : Approx. 15kΩ | |
| 200Ω Range | : Approx. 150kΩ | |
| 2000Ω Range | : Approx. 1500kΩ | |
| Interface : | RS232C | |
| Analog output : | DC0-2V | |
| Power Source : | AC100V-240V±10% 50/60Hz | |
| Dimensions : | W430×H200×D385mm Approx. 20kg | |
| Accessories : | 1) 4-terminal probe (6m) | |
| 2) AC Power cable (3P inlet cord with a ground terminal | ||
| 3) Instruction manual | ||
| 4) Inspection certificate (Test Report) | ||
| Option : | DC Blocking Capacitors Box (C-BOX, 7A, 23A, 45A) | |
DC Blocking Capacitors Box
DC Blocking Capacitor must be required for measurement under energized. An appropriate capacitor must be selected in accordance with the rated current of specimen.
Capacitor : Electrolytic Capacitor
Maximum-allowed-current value
470μF…..2A
4,700μF…..7A
47,000μF…..23A
330,000Fμ…..45A
Connecting Diagram
