A 1472, A1579 Leakage current clamp
7
3
Maintenance
3.1 Inspection
To maintain operator safety and ensure reliability of the current clamp
it is
good practice to inspect it on a regular basis. Check that the enclosure and
connections are undamaged.
The jaw surface must be clean. Pollution on jaw surfaces reduces the
current clamp sensitivity.
3.2 Cleaning
Use a soft cloth moistened with soapy water or alcohol to clean non-
metallic surface of the current clamps
and leave them to dry totally before
using it.
Notes!
Do not use liquids based on petrol or hydrocarbons!
Do not spill cleaning liquid over the current clamps!
To clean jaw cut surfaces use slightly oiled soft cloth.
3.3 Service and calibration
It is essential that your clamp is regularly calibrated in order to guarantee
the technical specification listed in this User manual. We recommend 2-
year calibration interval. Metrel encloses an original calibration certificate
with every new instrument and current clamp.
For recalibration and repairs under or out of warranty time please contact
your distributor for further information.
