During Use; General Notes; Manual Reset; Troubleshooting - Dräger Flame series Gebrauchsanweisung

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Troubleshooting

3.4

During use

3.4.1

General notes

After powering-up, the flame detector requires almost no attention to
function properly, but the following should be noted:
Do not expose the flame detector to radiation of any kind unless

required for testing purposes.
Do not open the detector housing while power is applied - there is

a risk of ignition of hazardous atmospheres.
Do not open the electronic compartment. This part should be kept

closed always and only opened in the factory. Opening the
electronic component side invalidates the warranty.
Only access the wiring compartment to wire or remove the

detector or access RS-485 terminals for maintenance.
3.4.2

Manual reset

Note: Most detectors are used in the non-latching alarm mode. Only
perform a reset when the latching alarm option has been programmed.
Disconnect power (terminal number 1 or terminal number 2).

or
Initiate a manual BIT (Dräger Flame 2000/2500/2700 only).

18
4 Troubleshooting
Problem Cause
Status LED off Flame detector not
Fault relay at N.O. energized
0-20 mA output at
0 mA
Status LED flashes Detector fault
yellow at 4 Hz Low voltage

Fault relay at N.O. Faulty

0-20 mA output at detector
0 mA
Status LED flashes BIT fault
yellow at 4 Hz Faulty

Fault relay at N.O. detector
0-20 mA output at
2 mA
Status LED lights If no fire exists, the
constantly red alarm is latched.
Corrective action
Check that the

correct power is
applied to the
flame detector.
Check power

polarity.
Check wiring in

the flame
detector.
Send the flame

detector to Dräger
for repairs.
Check the voltage

at the flame
flame detector; verify at
least 24 V at the
detector terminal.
Send the flame

detector to Dräger
for repairs.
Clean detector

flame window.
Repower the

flame detector.
Send the flame

detector to Dräger
for repairs.
Reset the flame

detector.