Maintenance / Repair
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Building Technologies A6V10209291_f_en_--
Fire Safety & Security Products 05.02.2010
7.3.4 Testing detectors with detector exchanger and tester
The easiest way to test the detectors is using detector exchanger and tester
FDUD292 and intelligent detector tester FDUD293. With these devices, the
detectors can also be tested in operating mode without any problems.
A detector can be put into test mode with the detector exchanger and tester
FDUD292 or the intelligent detector tester FDUD293.
For details, see Documents 007227 and 009718.
Selecting the test mode on the detector exchanger and tester does not deactivate
evaluation of the Technical CO Alarm!
7.3.5 Testing detectors without detector exchanger and tester
The fire detectors are highly resistant to deceptive phenomena. Optical fire
detectors thus recognize the immediate occurrence of smoke, as typically occurs
when testing with test gas, as a deceptive phenomenon and do 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 with a hot air fan, the detector must be
switched to test mode.
The detector or detector zones can be switched to test mode on the control panel.
Testing with test gas is then possible without problems.
To trigger a detector with test gas, normally 2 … 4 gas discharges at intervals of
approx. 2 seconds are required. When the detector is in test mode, activation
takes place after approximately 10 seconds.
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