User Manual

104
17. MAINTENANCE
Except for the battery and the memory card, the instrument contains no parts that can be replaced by personnel
who have not been specially trained and accredited. Any unauthorized repair or replacement of a part by an “equivalent”
may gravely impair safety.
17.1. CLEANING THE CASING
Disconnect the unit completely and switch it OFF.
Use a soft cloth, dampened with soapy water. Rinse with a damp cloth and dry rapidly with a dry cloth or forced air. Do not use
alcohol, solvents, or hydrocarbons.
17.2. MAINTENANCE OF SENSORS
Current sensors must be maintained and calibrated as follows:
 Clean with a sponge and soapy water, rinse with a sponge and clean water, and dry rapidly.
 Keep the air gaps of the clamps (MN93, MN93A, C193, PAC93 and E3N) perfectly clean using a cloth. Lightly oil visible metal
parts to avoid rust.
17.3. REPLACING THE BATTERY
For safety reasons, replace the battery only with the original model (see §19.3).
 Do not throw the battery into a fire.
 Do not expose the battery to a temperature in excess of 100°C.
 Do not short-circuit the terminals of the battery pack.
Remove the old battery.
 To eliminate all risk of electric shock, disconnect the power supply cord and measurement leads of the device.
 Turn the device over, raise the stand, and prop it up against the small yellow stops.
 Use a coin to unscrew the two quarter-turn screws on the back of the housing.
 Using a flat screwdriver, remove the cover from the compartment.
Small yellow stops.