![Bosch LSN Скачать руководство пользователя страница 27](http://html.mh-extra.com/html/bosch/lsn/lsn_product-documentation_43101027.webp)
PI - 32.15a
Product Documentation of the LSN Radio Fire Detection System
Seite 27 von 32
601-F.01U.002.708
A3.en / 28.12.2004
ST-FIR/ PRM1 / deh
9.
Maintenance and service
The functionality of the system must be checked at least once a year
(see also DIN VDE 0833 - 1).
.
Maintenance and inspection work should be carried out regularly by trained
personnel.
9.1. Battery change in RF smoke detector DOW 1171
Under optimum application conditions, lithium batteries have an
operational life of approx. 5 years.
However, we recommend that you replace the batteries after approx.
4 years, as part of a scheduled inspection.
.
Batteries are changed during normal operation.
.
It is not necessary to make any settings on the fire panel.
.
When changing the batteries, various system - specific fault messages are gen-
erated when the detector is removed, these must be reset manually once the
batteries have been changed.
.
Only one detector should be removed from the base to avoid any mix up
when refitting them.
Procedure
D
Turn the bayonet ring to the left and re-
move the detector from the socket.
D
Replace the batteries and then secure the cables so that they do not become
trapped when the detector is mounted.
⇒
The red individual display LED will flash three times in two seconds once the
batteries have been inserted.
D
Refit the detector to the base within 10 minutes of changing the batteries.
⇒
The red individual display LED flashes at a frequency of 1 - 4Hz, depending on
the field strength, indicating that the RF detector is logging on to the RF
expansion module again.
.
The individual display LED will go out once this renewed logon procedure is
complete.
D
The batteries in the next detector are then changed.
Bayonet ring
LED red