OSRAM QUICKTRONIC-M ECG for circular FL 16 mm - Manual (Page 80)

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mercury available to generate UV radiation.
This can be remedied by installing a thermal tube in the luminaire. The
effect always or nearly always occurs in the area of the luminaire where the
ECG is not located. This is due to the power loss of the ECG side of the
lumiaire will always be slightly warmer for the same reason.
Caution: Mercury depletion leads to a reduction in lamp voltage and to an
increase in discharge current. This may result in damage to the
ECG or, in extreme cases to failure of the ECG.
8.5 Trouble Shooting
8.5.1 Lamp does not start Problem:
Lamp does not start (with two-lamp ECGs both lamps fail to start), no
visible glow shortly after start-up. Same behaviour even after being off for 1
minute (internal reset) and restart.
Possible cause:
a)
RSD or other protective device in the installation has operated
Remedy:
Check the wiring on the mains side or insulation resistance. Has the
max. recommended number of ECGs on one phase in a 3-phase
system been exceeded= Make sure that the neutral conductor is
connected properly to all the luminaires and makes good contact.
Check that moisture has not penetrated the luminaire?
Possible cause:
b)
Fault in the wiring on the mains side
Remedy:
Check whether the mains voltage is in the required range for the
ECG. Make sure that the neutral conductor is connected properly
to all the luminaires and makes good contact. Check that the
cables sit correctly in the terminals.
Possible cause:
c)
At least one lamp has reached the end of its life owing to a cathode
break or increase in lamp voltage.
Remedy:
Replace the lamp (for two-lamp ECGs we recommend replacing
both lamps at the same time to keep maintenance time and costs
to a minimum).
Possible cause:
d)
The “fail-safe” overload protection device in the ECG has
responded (the ECG is permanently damaged)
Remedy:
Check whether the lamp(s) operate at other positions. If not, check
whether the mains voltage is within the permissible range. Make
sure that the neutral conductor is connected properly to all the l
uminaires and makes good contact. Replace the ECG and lamp.