Datasheet

Guide to Starters Page 10 of 17
9.6 Observation: the lamp does not start, the starter casing has a brown
discoloring
Cause: The starter is at the end of its life, the bimetallic strips can no longer close
Remedy: Replace the lamp and starter
9.6 Observation: radio interference
Cause:
The compensating capacitor is missing from the starter or is faulty
Remedy:
Replace the starter
9.7 Observation: the lamp ignites and goes out at short intervals
Cause:
The lamp is at the end of its life
Remedy: Replace the lamp and starter
9.8 Observation: damp-proof luminaire, cover cap over the opening for the start
discolored brown or the lamp ignites and goes out at short intervals
Cause:
The lamp is at the end of its life. The DEOS
®
SAFETY starter cannot trip because the distance to the
cover cap over the opening for the start is not great correct.
Remedy:
Replace the lamp. Insert an ST LONGLIFE starter; the DEOS SAFETY start is not suitable
here.
9.10 Observation: after the lamp and/or starter has been replaced the SAFETY
starter does not produce ignition
Cause:
The SAFETY starter has tripped.
Remedy:
Check whether the appropriate starter type has been inserted.
Cause:
The SAFETY starter has tripped.
Remedy:
Press the red button (DEOS
®
starter ST 171, ST 172, ST 173 SAFETY) (disconnect from
the power supply first)
9.11 Observation: the DEOS SAFETY starter trips during operation
Cause:
The DEOS SAFETY starter becomes too hot during operation of the lamp due to incorrect placement
in the luminaire (too near the lamp coil) and/or excessively high ambient temperatures (see data sheet)
Remedy:
Use ST 111 HT LONGLIFE.
9.12
Important: ST 171 SAFETY, ST 172 SAFETY, ST 173 SAFETY, before fitting.
Before fitting, it is recommended to press the red bottom on top of the canister of the starters,
ST 171 SAFETY, ST 172 SAFETY, ST 173 SAFETY.
It avoid that the hook of the SAFETY mechanism don’t fit well over the spring of the bimetallic
switch.
None expected switch-off of the starter SAFETY mechanism is avoided after one ore more switch-on
attempts of the lamp.