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High Voltage Insulation Tester 3128
High Voltage Insulation Tester
Microprocessor controlled high voltage insulation resistance tester with Diagnostic functions.
- Suitable for analyzing the insulation characteristics of cables, transformers, motors, generators, high-pressure switches, insulators, wiring installations, etc.
- 6 ranges: 500V, 1000V, 2500V, 5000V, 10000V, 12000V
Fine adjustment of voltage setting at each range is also possible - Graphic representation of the insulation resistance and leakage current versus time on large display with bar graph and backlight.
- Can be operated from built-in rechargeable battery or from AC line.
- Automatic discharge after test with monitoring of the discharge voltage.
- Internal memory can store about 40,000 data (max).
- Robust design for field use with IP64 rating (with lid closed).
Insulation resistance (*): Accuracy is not guaranteed with setting of 250V or less
| Rated voltage | 500V | 1000V | 2500V | 5000V | 10000V | 12000V |
| Max measurement value |
500GΩ | 1TΩ | 2.5TΩ | 5TΩ | 35TΩ | |
| Accuracy | 0~50GΩ ±5%rdg±3dgt (*) |
0~100GΩ ±5%rdg±3dgt |
0~250GΩ ±5%rdg±3dgt |
0~500GΩ ±5%rdg±3dgt |
0~1TΩ ±5%rdg±3dgt |
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| 50G~500GΩ ±20%rdg (*) |
100G~1TΩ ±20%rdg |
250G~2.5TΩ ±20%rdg |
500G~5TΩ ±20%rdg |
1T~10TΩ ±20%rdg |
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| 10T~35TΩ Values are displayed, but accuracy isn't guaranteed |
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| Short circuit current | Max 5.0mA | |||||
| Load resistor to output rated voltage | 0.5MΩ or more | 1MΩ or more | 2.5MΩ or more | 5MΩ or more | 20MΩ or more | |
Output voltage
| Rated voltage | 500V | 1000V | 2500V | 5000V | 10000V | 12000V | ||
| Monitor accuracy | ±10%±20V | ±10%±20V | ±10%±20V | ±10%±20V | ±10%±20V | ±10%±20V | ||
| Output accuracy | 0~+20% | 0~+10% | 0~+10% | 0~+10% | -5~+5% | -5~+5% | ||
| Selectable range | 50~600V (in steps of 5V) |
610~1200V (in steps of 10V) |
1225~3000V (in steps of 25V) |
3050~6000V (in steps of 50V) |
6100~10000V (in steps of 100V) |
10100~12000V (in steps of 100V) |
Voltage measurement
| Measuring range | DCV : ±30~±600V, ACV : 30~600V (50/60Hz) |
| Accuracy | ±2%rdg±3dgt |
Current measurement
| Measuring range | 5.0nA~2.40mA (Depending on the insulation resistance) |
Capacitance measurement
| Measuring range | 5.0nF~50.0µF | 5.0nF~1.0µF (display range: 5.0nF~50.0µF) |
| Accuracy | ±5%rdg±5dgt | |
General
| Withstand voltage | AC8770V : between line terminal and enclosure / 5sec (50/60Hz) AC6880V : between the measuring terminal and enclosure / 5sec (50/60Hz) AC2330V : between the power connector and enclosure / 5sec (50/60Hz) |
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| Operating temperature & humidity range |
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| Storage temperature & humidity range | -20ºC~60ºC / Relative humidity 75% or less (no condensation) | ||||
| Applicable standards | IEC 61010-1 CAT.IV 600V Pollution degree 2, IEC 61010-031, IEC 61326, IEC 60529 (IP64): with the lid closed. |
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| Power source | Rechargeable Lead storage battery (12V)* Charging time: approx. 8 hours / AC Power supply (100V~240V, 50/60Hz) * Continuous measuring time: approx. 4 hours a load of 100MΩ at the Insulation resistance 12000V Range. |
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| Dimension | 330 (L) × 410 (W) × 180 (D) mm *Instrument and Hard case | ||||
| Weight | 9kg approx. (including battery) *Instrument and Hard case | ||||
| Accessories | 7170 (Main cord), 7224 (Earth cord), 7225 (Guard cord), 7226 (Line probe), 7227 (Line probe with alligator clip), 8029 (Extension prod), 8212-USB-W (USB adaptor with KEW Windows (Software)), Instruction manual, Calibration Certificate |
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