Hioki succeeded in significantly reducing the effects of external noise by drawing on insulation resistance tester measurement technology and design expertise cultivated over many years.
As a result, the BT5525 can perform stable, variation-free insulation resistance testing at a level of quality that lets its detect internal short-circuits caused by contamination.
| Main functions | Insulation resistance test, Break Down Detect function (BDD), Contact check function |
|---|---|
| Output specificationse | Output voltage : 25 V to 500 V, Setting resolution 1 V
Charging current
(Current limit function) : 50 µA to 50 mA*1*2*3, Minimum setting resolution 10 μA Short-circuit current : 60 mA or less Discharge current : 40 mA or greater *1: Constraints involving the output generator will result in an error, making measurement impossible, if a capacitive load of approximately 50 μF or greater is connected while using a current limit setting of 5.1 mA or greater. *2: When using a current limit setting of 5.1 mA or greater, measurement will be forcibly stopped if the output voltage is not at least 20 V at 200 ms after the start of measurement. Measurement will be possible 1 s after forcibly stopped. *3: If the set current limit value is from 5.1 mA to 50.0 mA, the current will be limited to 5 mA after the output voltage reaches the set voltage.V |
| Measurement specifications | Resistance value display range: 0.050 MΩ to 9999 MΩ Resistance range: 2 MΩ, 20 MΩ, 200 MΩ, 2000 MΩ, AUTO |
| Basic accuracy | ±1.5% rdg. ±2 dgt. 25 V ≤ V < 100 V [0.05 MΩ to 2 MΩ] 100 V ≤ V ≤ 500 V [0.2 MΩ to 20 MΩ] |
| Test time | Test time : 0.050 s to 999.999 s, OFF Comparator delay time : 0.001 s to 999.999 s, AUTO Display update speed : 1 PLC Sampling time : 1 PLC to 100 PLC |
| Memory functions | Panel save function : Saves up to 15 sets of measurement conditions Measured value memory function : Saves up to 999 measured values in the instrument's internal memory |
| Judgment functions | Test modes : Continuous test, PASS STOP, FAIL STOP Comparator function : UPPER_FAIL : Measured value > upper limit value PASS : Upper limit value ≥ measured value ≥ lower limit value LOWER_FAIL : Measured value < lower limit value |
| Various functions | Break Down Detect function (BDD) : Detecting minuscule insulation defects caused by contamination Contact check function : 2-terminal capacitance measurement method Automatic data output function : Automatic output of measurement results via communication interface after completion of test Command monitor function : Screen display of commands being sent and received External I/O monitor function : Screen display of output signal ON/OFF and input signal status Analog output function : Converts measured values to 0 to 4 V DC and outputs |
| Interfaces | USB, LAN, RS-232C, EXT. I/O |
| Power supply | 100 V to 240 V AC |
| Power consumption | Approx. 20 VA*4
*4: Power supply conditions are 220 V supply voltage, 50, 60 Hz supply frequency, 200 V test voltage, 2 mA current limit, and load (1 GΩ resistor and 0.1 μF capacitor connected in parallel). |
| Maximum rated power | 100 VA |
| Dimensions and mass | Approx. 215 mm (8.46 in) W × 80 mm (3.15 in) H × 306.5 mm (12.07 in) D (excluding protruding parts), Approx. 2.8 kg (98.8 oz) |
| Included accessories | Power cord ×1, EXT. I/O male connector ×1, EXT. I/O connector cover ×1, EXT. I/O interlock cancellation jig ×1, Startup Guide ×1 |
