A Comprehensive Guide to the Maintenance and Repair of Insulation Resistance Multimeters
Insulation resistance multimeters generally use automatic calibration technology. Except for indicating replaceable components, components should not be replaced arbitrarily to avoid deviation in technical indicators. Next, Guangzhou Yingxiangjia Instrument Co., Ltd. will share with you how to repair and maintain an insulation resistance multimeter.
1, General maintenance and upkeep
1) Regularly clean the casing of the instrument with a damp cloth and neutral cleaning agent, and do not use abrasives or solvents. Dirt on the terminals and probe terminals can affect the reading, and cleaning agents can be used to clean the dirt on each terminal.
2) When not in use, press the POWER button to turn off the power, and remove the battery for long-term use.
3) Storage of instruments should avoid moisture, high temperatures, and strong magnetic fields.
2, Replace battery
1) Press the POWER button to turn off the power, and remove the probe or test wire from the terminal to completely disconnect the test wire from the circuit being tested.
2) Remove the two screws from the battery cover and take off the battery cover.
3) Remove the battery from the battery compartment.
4) Replace with 6 AA (AM3/LR6) new batteries (standard capacity approximately 2450mAh).
5) Close the battery cover and install two screws.
3, Replace the fuse
To avoid personal injury or instrument damage caused by electric shock or arc, the fuse must be replaced according to the following steps, and only fuses of the same model or electrical specifications can be used for replacement.
1) Press the POWER button to turn off the power, and remove the probe or test wire from the terminal to completely disconnect the test wire from the circuit being tested.
2) Remove the two screws on the battery cover, the two screws on the back cover of the housing, and the one screw on the back of the battery, and then remove the battery cover and the back cover of the housing.
3) Gently pry up one end of the fuse, remove the burnt fuse, and replace it with a fuse of the same model or electrical specification. Ensure that the fuse is securely clamped in the middle of the fuse clip. Insurance specification: F1A240V.
4) After closing the battery cover and the back cover of the housing, tighten the four screws. Do not use the instrument panel until it is locked.
