7.3 Testing detectors
Depending on the sensor mode, testing may be performed with one or more of the
following tools:
●
Test gas
●
Hot air
The following table shows which mode may be tested with which test aid.
Mode
Test gas
Hot air
Wireless diagnostic
tool
Sensor mode 1
–
X
Communication
Sensor mode 2
X
–
Communication
The fire detectors are highly resistant to deceptive phenomena. This means that
optical fire detectors, for example, will recognize the immediate occurrence of
smoke (such as that which occurs during testing with test gas) as a deceptive
phenomenon and will not trigger an alarm. This is desirable in normal operation;
however, it does make testing with test gas problematical.
To enable detector testing with test gas or hot air, the detector must be switched to
test mode. Testing with test gas or hot air is performed differently on addressed
detector lines and collective detector lines.
Proceed as follows:
1. First switch the zone to 'Test' on the control panel.
2. Then perform the test using test gas.
To trigger a detector using test gas, normally 2…4 gas discharges at intervals of
approx. 2 seconds are required. When the detector is working in test mode,
activation takes place after approximately 10 seconds.
7.4 Confirming the detector position
Use the manufacturer documentation for the radio gateway to confirm the detector
position.
Maintenance / Repair
Testing detectors
7
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