When using test probes without protective caps, meas-
urements between the multimeter and the earth poten-
tial must not exceed the CAT II measurement category.
When taking CAT III measurements, the protective
caps must be placed on the probe tips (max. length
of exposed contacts = 4 mm) to avoid accidental short
circuits. These are supplied with the device and pre-mounted on the test probes.
If it is no longer possible to operate the product safely, stop using it and prevent
unauthorised use. DO NOT attempt to repair the product yourself. Safe opera-
tion can no longer be guaranteed if the product:
– is visibly damaged,
– is no longer working properly,
– has been stored for extended periods in poor ambient conditions or
– has been subjected to any serious transport-related stress.
56