Dräger Flame 2000, Instructions For Use Manual

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18
Troubleshooting en
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).
4 Troubleshooting
Problem Cause Corrective action
Status LED off
Fault relay at N.O.
0-20 mA output at
0 mA Flame detector not
energized

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.
Status LED flashes
yellow at 4 Hz
Fault relay at N.O.
0-20 mA output at
0 mA Detector fault

Low voltage

Faulty flame
detector

Check the voltage
at the flame
detector; verify at
least 24 V at the
detector terminal.

Send the flame
detector to Dräger
for repairs.
Status LED flashes
yellow at 4 Hz
Fault relay at N.O.
0-20 mA output at
2 mA BIT fault

Faulty flame
detector

Clean detector
window.

Repower the
flame detector.

Send the flame
detector to Dräger
for repairs.
Status LED lights
constantly red If no fire exists, the
alarm is latched.

Reset the flame
detector.