User manual
The Flex current probe in connection with an alternate voltage meter (AC-V) permits measurement of the electrical
AC strength in an electrical conductor. The circuit does not have to be interrupted when applying the current probe
and during the measurements. The current probe works according to the Rogowsky principle and determines the
electrical eld that surrounds a conductor through which a current ows. An alternate voltage is output at the exit
that is proportional to the current strength.
The current probe has a protective isolation and can be used to measure isolated and unisolated electrical con-
ductors. At unisolated, actively dangerous conductors, the current probe must only be applied and accepted in the
powered-down circuit.
The voltage in the current measuring circuit against ground potential must not exceed 1,000 V in CAT III or 600 V
in CAT IV. Use of personal protection equipment is recommended for measurements in CAT III and CAT IV environ-
ments.
The connection to a voltage meter takes place via 4 mm safety plugs. They match most voltage meters.
The meter is operated with two conventional 1.5 V micro batteries (type AAA, LR03). The device must only be
operated with the specied battery type. Rechargeable batteries with a cell voltage of 1.2 V must not be used.
The meter must not be operated when it is open, i.e. with an open battery compartment or when the battery com-
partment cover is missing.
Measuring in potentially explosive areas (Ex) or damp rooms or under unfavourable ambient conditions is not
permitted. Unfavourable ambient conditions are: Moisture or high humidity, dust and ammable gases, fumes or
solvents, thunderstorms or thunderstorm conditions like strong electrostatic elds, etc.
For safety reasons, only use measuring lines or accessories which are adjusted to the specications of the meter
when measuring.
The meter must only be operated by persons who are familiar with the required provisions for the measurement and
the possible dangers. Use of personal protection equipment is recommended.
Any use other than that described above will lead to damage to the product and involves additional risks such as, for
example, short circuit, re, electric shock, etc. No part of this product must be modied or converted!
Read the operating instructions carefully and keep them for later reference.
Always observe the safety information!