WamBlee W420 Manuel D'instruction page 44

To change the batteries proceed as follows:

Make sure the knob (1) is in the 'OFF' position.

Use a suitable Phillips screwdriver to remove the 4 screws on the
underside edges of the device (6).

Remove the upper part of the case; if necessary tap the edge
gently.

Remove the three old batteries (8) and replace them with three new
ones. Make sure they are installed the right way round (positive pole
facing top of device).

Press the pushbutton (7) and check the test sequence as described
in 'Periodic checks'.
EN

Re-close the upper lid, making sure the seal is inserted in its seat
correctly and is not damaged. If you notice that the seal is damaged
or see any infiltration of foreign matters inside the device replace
the seal.

Screw the 4 underside edge screws back in; tighten properly but not
excessively.
Approved batteries (non ATEX version)
The batteries approved for your device unit are, at the time this handbook
going to press, the following:

VARTA CR2/3AH

Duracell CR123A, DL123A
This list is continuously updated and can be consulted on the following
website: www.wamblee.it
Troubleshooting
Should the device fail to pass the periodic check it will be necessary to send
your W420(LP/EX) to our after-sales service, which will restore proper
performance.
A list of after-sales authorized dealer to carry out maintenance on your
device can be consulted on our website
44
www.wamblee.it