IM CA500-02EN
25
Measurement Category
The measurement category of this instrument is Other (O).
Measurement
Category
Description Notes
O(None, Other) Other circuits that are not directly
connected to the mains.
Circuits that are not powered
from the mains
CAT II For measurements performed on circuits
that are connected to low-voltage
installations
Household appliances,
portable tools, etc.
CAT III For measuring facility circuits Distribution boards, circuit
breakers, etc.
CAT IV For measurements performed on power
source circuits
Entrance cables, cable
systems, etc.
The estimated transient
overvoltage that may appear at the CA500 and CA550
signal input terminals is 500 V.
Fastening the Shoulder Strap
Fasten the shoulder strap to the strap fastening area at the top section on each side
of the instrument.
Pass the shoulder strap through the fastening area and then the buckle as shown in
the figure. Attach the left and right sides in the same manner.
Buckle
Pass the belt back
through the buckle again
and tighten it.
2 Preparation before Use
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