This file is the user manual for Extech 380375 Digital High Voltage Insulation Tester
The Extech 380375 is a professional digital high voltage insulation tester designed to measure insulation resistance up to 250GΩ. It features four automatic voltage test ranges (500V, 1kV, 2.5kV, and 5kV) and includes safety features such as a live circuit warning, automatic discharge, and an Enersave mode to conserve battery life. The device is intended for use in environments with indoor installation category II and pollution degree 2.
| Max Insulation Resistance | 250 GΩ |
|---|---|
| Test Voltage Ranges | 500V, 1kV, 2.5kV, 5kV |
| Power Source | Eight 1.5V AA cells |
| Battery Life | 40 hrs |
| Operating Temperature | 0 to 40 °C |
| Dimensions | 120 x 170 x 95mm |
Extech warrants the instrument to be free of defects in parts and workmanship for one year from the date of shipment.
Enersave mode reduces the test time from approximately 100 seconds to approximately 10 seconds to conserve battery life.
The meter will sound a warning beeper and display a 'Live Warning… Circuit Live' message.