WamBlee W470 Manuel D'instruction page 44

in 'Periodic checks'.

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 infltration 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:
EN

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 W470(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