Operating Mode; Maintenance - Chauvin Arnoux E3N Mode D'emploi

To make a current measurement, switch on the clamp by selecting the 100 mV/A range.
Check that the battery indicator (green) is lit and that the «OL» indicator is not lit.
Connect the clamp to the oscilloscope.
With the clamp closed and without clamping a conductor, select the highest sensitivity
(for example 1 mV/cm) on the oscilloscope and 100 mV/A on the clamp, then set zero on
the clamp with the thumbwheel in relation to a reference chosen on the oscilloscope. Zero
on the oscilloscope makes it possible to adjust this setting.
Select the measurement sensitivities of the clamp and the oscilloscope.
Choose the connection method which is the best adapted to measurement on the
oscilloscope.
Note the direction of the primary current by means of the arrow marked on and under
the case.
Insert the conductor carrying the current to be measured in the clamp and take the
measurement.
If necessary, re-check the origin of the graph, with the jaws not clamped around the
conductor, and make the measurement again.
For maintenance, use only specified spare parts. The manufacturer will not be
held responsible for any accident occurring following a repair done other than
by its After Sales Service or approved repairers.
Jaw faces : It is necessary to always keep the jaw faces clean. Clean them and lightly oil
them to avoid rust. Do not leave the clamp in very damp places, or directly exposed to
water.
Handles and case : Clean with a cloth or a sponge soaked with soapy water, rinse in the
same way without ever getting water on the clamp. Dry with a cloth or in an air flow.
To maintain the performance of the clamp, it is advisable to carry out a check or recali-
bration every year.
CALIBRATION
It is essential that all measuring instruments are regularly calibrated.
For checking and calibration of your instrument, please contact our accredited laboratories
(list on request) or the Chauvin Arnoux subsidiary or Agent in your country.
REPAIRS
Repairs under or out of guarantee: please return the product to your distributor.

OPERATING MODE

MAINTENANCE

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