Digital Insulation Resistance Meter (5kV Megohmmeter)
General Information:
EPR50A Digital insulation resistance meter also known as megohmmeter,high voltage insulation resistance tester, etc., for the insulationresistance test. The instrument has a large LCD screen gray backlit display,data storage, data access, alarm, automatic shutdown and other functions. Atthe same time, it also has the function of measuring AC voltage absorptionratio and polarization index of DC voltage. The machine is beautiful andupscale, has a wide range, high resolution, convenient operation, easy tocarry, accurate, reliable, stable performance, strong anti-interference ability.
EPR50A has a shockproof, dustproof, moisture-proof structureand is a commonly used and indispensable instrument for telecommunications, electricity, meteorology, computer rooms, oil fields, electromechanical installationand maintenance, and industrial enterprises that use electricity as industrialpower or energy. It is suitable for measuring the resistance value of variousinsulating materials and the insulation resistance of transformers, motors,cables and electrical equipment.
EPR50A Digital insulation resistance meter consists of medium and large-scale integrated circuits. This meter has high output power and many output voltages levels (there are 6 voltage levels). The rated insulation testvoltage range is 250V
Measuring Range and Accuracy:
| Test Function | Insulation resistance test, voltage test | ||
| Condition | 23°C±5°C，below 75%rh | ||
| Rated voltage (V) | 100V, 250V, 500V, 1000V, 2500V, 5000V | Precision：±3%rdg±5dgt | |
| Measuring voltage(V) | Rated voltage×（1±10%） | ||
| Insulation Resistance Range | 0.01MΩ～2000GΩ | Precision：±3%rdg±5dgt | |
| Insulation Resistance Resolution | 0.01MΩ | ||
| DC voltage range | 0～1000V | Resolution 0.1V | |
| AC voltage range | 0～750V | Resolution 0.1V | |
| Output short circuit current | ≥5mA(5000V) | ||
| Absorption Ratio and Polarization Index Measurement | Have | ||
| Power Supply | 12V rechargeable battery | ||
| Backlight | Controllable gray screen backlight, suitable for use in dim places | ||
| Display mode | 4-bit large LCD display, gray screen backlight | ||
| LCD display size | 108mm×65mm | ||
| Instrument size | 227.2mm (L)×227.5mm (W)×153mm (H) | ||
| USB interface | With USB interface, software monitoring, storage data can be uploaded to the computer, save the print | ||
| Communication Line | USB communication line 1PC | ||
| Test Line | High voltage robs red 3meter, high voltage test line black 1.5meter, green 1.5meter | ||
| Data Storage | 500 groups, "FULL" symbol indicates that storage is full | ||
| Data Review | Data review function: "READ" symbol display | ||
| Overflow Display | Exceed measurement range overflow function: “OL” symbol display | ||
| Alarm Function | Alarm when the measured value exceeds the alarm setting value | ||
| Power Consumption | Standby: 30mA Max (backlight off) | ||
| Turn on backlight: 42mA Max | |||
| Measure：200mA Max (backlight off) | |||
| Instrument weight | 2350g (including battery) | ||
| Battery voltage | | ||
| Automatic shut-down | automatic shutdown after 15 minutes boot | ||
| Insulation Resistance | ≥50MΩ (between Measuring line and shell) | ||
| Pressure Resistance | AC3kV/50Hz 1min | ||
| Working Temperature and Humidity | －10℃～+50℃＜85%RH | ||
| Storage Temperature and Humidity | －15℃～+55℃＜90%RH | ||
| Suitable for Safety Regulations | IEC61010-1, IEC1010-2-31, IEC61557-1,5, IEC60529(IP54), Pollution grade 2, CAT III 300V | ||