15. Cleaning and maintenance
a) Cleaning
Do not use aggressive cleaning agents, rubbing alcohol or other chemical solutions as
they can cause damage to the housing and malfunctioning.
• Disconnect the product from the mains before each cleaning.
• Clean the product with a dry, fibre-free cloth.
• If there is any malfunction, stop using the meter and send it for maintenance. Maintenance
and service must only be carried out by qualified professionals.
b) Maintenance
• The DMM should be calibrated once a year for maximum accuracy.
• The DMM does not require maintenance other than battery and fuse replacement.
• Check the device and measuring lines for signs of wear and damage.
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