SONAPHONE
®
E
Operating Manual – Revision: 2.4 | 2020-11-17
Page 19 of 66
5 Operation
5.1 Insert the batteries
Death or serious injury possible.
Incorrect operation, damage to the
device as well as damage to accessories can impair the explosion
protection.
(1) Never open the battery cover in a hazardous area. Never
change the batteries in a hazardous area, with an active USB
connection or when the power is on.
(2) Only the following battery types (alkaline primary cells) are
permitted for operation of the SONAPHONE
®
E:
●
Varta High Energy 4906 MN1500
●
Duracell Plus MN1500
(3) Always observe the installation position (engraved) on the
battery block regarding the polarity of the batteries.
Performing the battery change
Leave the hazardous area, disconnect the USB connection if
necessary and switch off the device.
1. Remove the carrying strap from the battery compartment cover.
2. Hold the battery block and the device firmly in your hand (see
photo below). Turn the locking screw of the battery compartment
back to the stop using the hexagon socket wrench. The battery
block moves in the direction of the locking screw.