40
BM 25A/AW
Instruction Manual
■
It is important that all BM 25AWs intended to be on the same network have the
same network ID.
■
In Controller mode, two BM 25AWs cannot share the same address otherwise you
will get a fault.
Once wireless mode is activated (‘
BM 25
’ or ‘Controller’ mode), you have 5 minutes to
declare another BM 25AW on the same network. When the time is gone and no
communication is established, BM 25AW shows 'COMM ERR' and goes into fault (see
case #1 from table of events).
Figure 26 : COMM ERR, no communication is established
Thereafter, in normal operation, each BM 25AW sends its information over the network
every ten seconds. If a BM 25AW goes into gas alarm or fault condition, then the
information is immediately sent without waiting ten seconds. In
BM 25 mode
, the
number of BM 25AWs that are communicating on the network is shown at the bottom
of the display screen (example 4 shown below).
Figure 27a
– BM 25 mode : Four BM
25AWs communicate with each
other on the same network
Figure 27b
– Controller mode : BM
25AW is communicating with the
controller
When in
BM 25 mode
, BM 25AW displays the radio signal strength as indicated below
in figure 27c. It corresponds to the average of signals received from all BM 25AWs that
the BM 25AW you are looking at is communicating with.
Summary of Contents for BM 25A/AW
Page 1: ...BM 25A AW Area Gas Monitor Part Number NP25AEN Version C 4 User Manual ...
Page 10: ...10 BM 25A AW Instruction Manual Product Overview Figure 2 Product Overview ...
Page 18: ...18 BM 25A AW Instruction Manual ...
Page 34: ...34 BM 25A AW Instruction Manual ...
Page 70: ...70 BM 25A AW Instruction Manual ...
Page 75: ...9 Special Instructions 75 CSA Control Drawing for BM 25A AW Connections ...
Page 78: ...78 BM 25A AW Instruction Manual ...