20
5. Battery indication
The condition of the battery is indicated by a three-
stage battery symbol in the display.
= battery filled
= battery semi-filled
Many measurements
still can be performed.
= battery empty
The screen backlighting is
deactivated automatically
Attention!
When the empty battery symbol flashes, no more
measurements can be taken.
The battery needs to be replaced.
The battery may only be replaced
outside of Ex-areas.
For replacing the battery the rear cover needs to be
unscrewed.
You may only insert the following types of
batteries: 9 V block IEC 6 LR 61
EP 4Ex: only DAIMON MN1604; IEC 6LR61
The connectors, jacks and contacts have to
be kept clean.
Regularly make sure that the battery does not
leak. In case it does you have to remove the
electrolyte completely and to insert a new battery.
In case of a longer storage period the EP 4Ex
needs to be kept without battery at a dry and
clean place with temperatures between -10° and
+ 70°C.
6. Maintenance
The EP 4 is completely maintenance-free except for
its energy source (see 5.)
Nevertheless, in order to assure safe operation
observe the following information: The Ep 4 always
has to be kept in a dry and clean condition.
The plastic housing can be cleaned with a cloth
dampened with isopropyl (alcohol) or soapy water.
Do not use cleansing material that contains acetone
or similar solvents.
6.1 Repair/Calibration
Repairing is only allowed by the manufacturer or
explicitly authorised repair shops.
In case of damages at the device, in case of failure of
the self-test according to section 3 or for a detailed
inspection/calibration please contact:
or send the device and a
description of failure back to the manufacturer
(address see page 1).
