Description
Overview
GAOTek Digital LCR loop resistance testers, also known as megohmmeters and high-voltage insulation resistance meters, are used for insulation resistance tests. These instruments have the functions of large-screen LCD grey backlight displays, data storage, data queries, alarms, automatic discharge, charging, automatic shutdown, etc. At the same time, they also have the function of measuring DC voltage, AC voltage absorption ratios, and polarization indexes. The whole machine is beautiful, with wide ranges, high resolutions, convenient operations, convenient carrying, accurate, reliable, stable performances, large output powers, and strong anti-interference abilities. They also have shock-proof, dust-proof, and moisture-proof structures and can adapt to harsh working environments. They are commonly used instruments for telecommunication, electric power, meteorology, computer rooms, oil fields, electromechanical installation and maintenance, and industrial enterprise departments that use electric power as industrial power or energy. They are suitable for measuring the insulation resistance of various insulation materials and transformers, motors, cables, and electrical equipment.
Technical Specifications
| Reference condition | 23 °F ± 5 °F (73.4 °C ± 5 °C), below 75% rh |
| Insulation resistance range | 0.01 M Ω to 10 T Ω, 0.01 M Ω to 35 T Ω, 0.01 M Ω to 50 T Ω |
| Rated applied voltage | 100 V； 250 V； 500 V； 1000 V； 2500 V； 5000 V precision rated voltage x （1±10%）
250 V； 500 V； 1000 V； 2500 V； 5000 V； 10 KV precision rated voltage x （1±10%） 500 V； 1000 V； 2500 V； 5000 V； 10 KV； 15 KV precision rated voltage x （1±10%） |
| DC voltage range | 0.1 V to 1000 V |
| AC voltage range | 0.1 V to 750 V |
| DC current measurement | 0.01 mA to 6 mA |
| Capacitance measurement | 10 uF to 50 uF |
| Output short-circuits current | ≥ 6 mA |
| Power supply | 12 V rechargeable battery |
| Backlight | controllable grey white screen backlight |
| LCD display size | 4.25 in x 2.56 in (108 mm x 65 mm) |
| Instrument size | 9.45 in x 7.40 in x 3.35 in (240 mm (length) x 188 mm (width) x 85 mm high) |
| USB interface | with USB interface |
| Test line | Various lengths (as listed) |
| Communication cable | 1 USB communication cable |
| Data storage | 500 groups |
| Overflow display | “OL” symbol display |
| Alarm function | when the measured value exceeds the alarm setting value |
| Power waste | Various (as listed) |
| Instrument mass | 5.16 lb (2340 g) (including battery) |
| Battery voltage | low power symbol displayed if insufficient |
| Automatic shutdown | after about 15 minutes without operation |
| Insulation resistance | ≥ 50 M Ω (between measuring line and shell) |
| Withstand voltage | AC 3 kV/50 Hz 1 min |
| Operating temperature and humidity | – 10 ℉ to +50 ℉ (-23.33 °C to +10 °C) ＜ 85% RH |
| Storage temperature and humidity | – 15 ℉ to +55 ℉ (-26.11 °C to +12.78 °C) ＜ 90% RH |
| Applicable safety regulations | IEC 61010-1, IEC 1010-2-31, IEC 61557-1,5, IEC60529 (IP54), pollution, etc. 2, CAT Ⅲ 300 V |