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Kyoritsu KEW 3128 High Voltage Insulation Testers
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 43,000 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 | 500G/td> | 1T/td> | 2.5T/td> | 5T/td> | 35T/td> | |
| Accuracy | 400k__50G%rdgdgt (*) | 800k__100G5%rdgdgt | 2M__250G%rdgdgt | 4M__500G%rdgdgt | 8M__1T%rdgdgt | |
| 50G__500Gbr />0%rdg (*) | 100G__1Tbr />0%rdg | 250G__2.5Tbr />0%rdg | 500G__5Tbr />0%rdg | 1T__10Tbr />0%rdg | ||
| 10T - 35Tbr />Values are displayed, but accuracy isn't guaranteed | ||||||
| Short circuit current | Max 5.0mA | |||||
| Load resistor to output rated voltage | 0.5Mor more | 1Mor more | 2.5Mor more | 5Mor more | 20Mor more | 24Mor more |
Output voltage
| Rated voltage | 500V | 1000V | 2500V | 5000V | 10000V | 12000V |
|---|---|---|---|---|---|---|
| Monitor accuracy | 0%0V | 0%0V | 0%0V | 0%0V | 0%0V | 0%0V |
| 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__0 __ 00VCV__30 __ 600V _0/60Hz_/td> |
|---|---|
| Accuracy | %rdgdgt |
Current measurement
| Measuring range | 5.00nA - 2.40mA (Depending on the insulation resistance) |
|---|
Capacitance measurement
| Measuring range | 5.0nF __ 50.0F (500V/1000V/2500V/5000V) | 5.0nF - 1.0 (display range: 5.0nF - 50.0) (10000V/12000V) |
|---|---|---|
| Accuracy | %rdgdgt | |
General
| Applicable standards | IEC 61010-1 CAT IV 600V Pollution degree 2, IEC 61010-031, IEC 61326, IEC 60529 (IP64): with the lid closed. |
|---|---|
| Operating temperature & humidity range | -10 - Relative humidity 85% or less 50 /(when operating with an external power supply, no condensation) 0 - 40 /Relative humidity 85% or less (when operating with battery, no condensation) |
| Storage temperature & humidity range | -20 - 60 / Relative humidity 75% or less (no condensation) |
| 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 100Mat the Insulation resistance 12000V Range.) approx. 2 hours (Max current consumption in range while rated currents are maintained.) |
| Dimensions | 330 (L) 410 (W) 180 (D) mm *Instrument and Hard case |
| Weight | 9kg approx. (including battery) *Instrument and Hard case |
| Included Accessories | 7170 (Main cord), 7224A (Earth cord), 7225A (Guard cord), 7226A (Line probe), 7227A (Line probe with alligator clip), 8029 (Extension prod), 8212-USB-W (USB adaptor with KEW Windows (Software)), Instruction manual |
| Optional Accessories | 7254 (Longer Line probe with alligator clip) |