Audible signals - Locking cylinder (Z4) DoorMonitoring

Cylinder audible signals

Signal type

Meaning

Action required

2 short audible signals before engaging and a short tone after disengaging

Normal activation

No

1 short audible signal: cylinder does not engage.

Attempted entry with a transponder listed in the locking system, but: booked outside the time zone: no authorisation, cylinder is deactivated

Check authorisations. Read locking device, check status. Check time zone plan

8 short audible signals before engaging: Battery Warning Level 1

Batteries are low

Replace batteries in the cylinder

8 short audible signals 30 seconds long with one second pause each time before engaging: Battery Warning Level 2

Batteries are almost completely empty

Replace batteries in the cylinder immediately.

6 audible signals (long – pause – short): Freeze mode

Battery empty. Cylinder can no longer be opened using an authorised transponder.

Replace batteries and reset with a battery replacement transponder.

8 short audible signals after thumb-turn disengages

Transponder battery is low

Have transponder battery replaced