CIRCUTOR CPM (Available until stocks) - Manual (Page 11)

--------- MULTIMETER CURRENT CLAMP CPM -------- PG No. 10
-
2.2.- Special precautions
This equipment can be used for Overvoltage Category II installations.
The clamp can be used exclusively for the measurement of current for
installations of up to 600 V with Overvoltage Category IV.
When using the test probes fingers must be kept behind the protection
outcrops.
Maintain the test probes in good condition.
Note the correspondence between the connection of the probes and
the measurement to be taken.
2.3.- Descriptive examples of overvoltage categories
Cat I Low voltage installations isolated from the mains.
Cat II Portable domestic installations.
Cat III Fixed domestic installations.
Cat IV Industrial installations.