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9
Instruction manual for current clamp LW-MZ-50
Mechanical protection
• Protection class IP40 (according to EN 60529) with closed clamps or IP30
with clamps open.
Self-extinguishing material
• Clamp jaws: V0 (acc. to UL 94)
9.0 Inspection and maintenance
The LW-MZ-50 current clamp is maintenance-free when used as intended.
maintenance-free.
Inspection or maintenance of the LW-MZ-50 current clamp may only be
carried out by qualified electricians.
Modifications to the unit, unless explicitly described in these operating
instructions, may only be carried out by EPA or persons authorised by EPA.
The accident prevention regulations must be observed.
9.1 Cleaning, care
When cleaning, the LW-MZ-50 current clamp must not enclose a conductor
and must be disconnected from the measuring device. Do not splash the
clamp with water.
• The air gap of the clamp jaws must always be clean. Remove dust and
dirt with a dry soft cloth. Wipe the air gap with an oil-soaked cloth from
time to time to protect it from rust.
• Clean the housing with a cloth and a little soapy water, then wipe with a
damp cloth. Then dry the unit with a cloth or blow it off with max. 70°C
warm air.
9.2 Revision
As with other measuring or testing devices, a regular device check
is required. It is recommended to check the instrument once a year.
For checking and calibration, please contact our approved measuring
laboratories (information and addresses on request) or EPA GmbH directly.
