Maintenance / Repair; Performance Check; Testing The Point Detector - Siemens OH110 Technical Manual

7

Maintenance / Repair

Performance check

7 Maintenance / Repair
7.1 Performance check

7.2 Testing the point detector

50
Building Technologies
Fire Safety
The selftest automatically subjects the point detectors to an extensive electrical
performance check. Regular performance checks of the point detectors are
required nonetheless. This may be done with the test gas or hot air fan depending
on the detector type.
Recommendation:
Check the devices every year.
l
Replace heavily soiled or damaged devices.
l
All point detectors should be replaced after 6 to 8 years of service, depending
l
on the ambient conditions.
Depending on the point detector, testing may be performed with one or more of the
following accessories:
Test gas
l
– REF8-S (recommended)
– REF8
Hot air fan
l
Once the detector line has been started up or reset, the smoke detector OH110
has a reduced response time in the 'Robust' parameter set for a period of
3 minutes. It is possible to test the point detector with test gas during this period.
Simplified test readiness of the point detector is indicated by the green LED
flashing three times every 10 s.
The following table shows which point detectors may be tested with which test aids:
Detector
OH110
OP110
HI110
HI112
X = Testing equipment is suitable
– = Testing equipment is not suitable
To trigger a point detector with test gas, normally 2...4 gas discharges are
required at intervals of approx. 2 seconds. When the detector is in test mode,
activation takes place after approximately 10 seconds.
See also
2 Internal alarm indicator [➙ 20]
2 Test mode [➙ 21]
Test gas
X
X
–
–
Hot air fan
X
–
X
X
A6V10316298_e_en_--
2014-05-21