6
GMC-I Messtechnik GmbH
• All current ranges are equipped with fuses. The maxi-
mum allowable voltage for the measuring current circuit
(= nominal voltage of the fuse) is equal to 600 V
.
•
The device may only be used for measurements of category
CAT II 600 V or CAT III 300 V
.
Please refer to the table of mea-
suring categories below regarding the range of application.
Measuring Categories and their Meaning per IEC 61 010-1
The measurement category and the relevant maximum
rated voltage (e. g. 300 V CAT III) which are shown on the
instrument casing apply to your measuring instrument.
Application of cable set KS17-2
Attention!
Please observe the maximum values of the electrical
safety of the device.
In conformity with standard DIN EN 61010-031,
measurements in an environment according to
measuring category III and IV may only be per-
formed with the safety cap applied to the test
probe of the measurement cable.
For establishing contact in 4 mm jacks you have to remove
the safety cap by levering out the snap lock of the safety
cap with another sharp object (e.g. the second test probe).
Electrical Safety of cable set KS17-2
CAT
Definition
I
Measurements in electrical circuits not directly connected
to the mains system:
e. g. power systems in motor vehicles or aeroplanes,
batteries ...
II
Measurements in electrical circuits directly connected to
the low-voltage system:
via plug, e.g. in households,
offices, laboratories ...
III
Measurements in facility installations:
stationary consumers, distributor connections, devices
attached to a distributor
IV
Measurements at the source of low-voltage installations:
Meters, main terminal, primary overcurrent protection
devices
Maximum Rated Voltage
600 V
1000 V
1000 V
Measuring Category
CAT IV
CAT III
CAT II
Maximum Rated Current
1 A
1 A
16 A
with
safety cap applied
—
without
safety cap applied
—
—