Siemens OH110 - Internal Alarm Indicator

3
Structure and function
Function
20
Building Technologies A6V10316298_e_en_--
Fire Safety 2014-05-21
3.3.3 Internal alarm indicator
The point detectors have an internal alarm indicator. The internal alarm indicator
shows the point detector's operating status.
When the point detector is in normal operation, the internal alarm indicator does
not light up or flash.
The meaning of the internal alarm indicator's flash signals is explained in the tables
below.
Multi-sensor fire detector OH110
Color
Parameter set
Flashing frequency
Meaning
Red 'Robust' and 'Sensitive' One flash every 1 s Alarm
Yellow 'Robust' and 'Sensitive' One flash every 10 s Fault
Green 'Robust' During the first three minutes of
operation:
Three flashes every 10 s
l Reduced response time
for testing after the
detector line is started up
or reset
l No fault
l Operation with 'Robust'
parameter set
From the 4th…15th minute of
operation:
Two flashes every 5 s
l No fault
l Operation with 'Robust'
parameter set
Green 'Sensitive' During the first 15 minutes of
operation:
One flash every 5 s
l No fault
l Operation with 'Sensitive'
parameter set
Smoke detector OP110
Color
Parameter set
Flashing frequency
Meaning
Red 'Standard' and 'Sensitive' One flash every 1 s Alarm
Yellow 'Standard' and 'Sensitive' One flash every 10 s Fault
Green 'Standard' During the first 15 minutes of
operation:
One flash every 5 s
l No fault
l Operation with 'Standard'
parameter set
Green 'Sensitive' During the first 15 minutes of
operation:
Two flashes every 5 s
l No fault
l Operation with 'Sensitive'
parameter set