Checking And Testing The Power Supply Units; Led And Buzzer Test - Siemens FDA241 Technical Manual

7.7
7.8
Building Technologies
Fire Safety

Checking and testing the power supply units

The power supply units must be checked and tested in accordance with the
manufacturer's instructions, both on first commissioning and at regular intervals.

LED and buzzer test

During the test, the following is checked:
Function test of the detector indicator

LED light test in three brightness levels

Sound of the buzzer at three different sound levels

The test is activated with the
LEDs.
 The aspirating smoke detector is ready for use.
Press the button for 5 seconds.

 The LED and buzzer test is carried out. The test is automatically
undertaken in three stages.
– Stage 1: All the LEDs light up consecutively for one second at full
brightness. The buzzer sounds loudly.
– Stage 2: All the LEDs light up consecutively for one second at reduced
brightness. The buzzer sounds quieter.
– Stage 3: All the LEDs light up consecutively for one second at faint
brightness. The buzzer sounds quietly.
 The fault indicator
corresponding LED indicator lights up at the same time for 3 seconds for Fault
analysis [➙ 104].
 The indicators go out once the test has been completed successfully.
 If a fault is present, the fault indicator flashes.
 During normal operation, the three green LEDs light up.
Normal operation, green LEDs light up
See also
 Fault analysis [➙ 104]
 Normalization [➙ 90]
 Table of faults [➙ 102]
Checking and testing the power supply units
button and the result indicated with the
lights up briefly. If a fault is present, the
Commissioning
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2015-09-29