Trotec BE40 Manuel D'utilisation page 24

Cleaning
Clean the device with a soft, damp and lint-free cloth.
Ensure that no moisture enters the housing. Do not use
any sprays, solvents, alcohol-based cleaning agents or
abrasive cleaners. Only use clean water to moisten the
cloth. After cleaning, do not use the clamp meter for
approx. 5 hours for safety.
Repair
Do not modify the device or install any spare parts. For
repairs or recalibration, contact the manufacturer.
B - 11 EN
Operating Manual – Clamp Meter BE40