Operating instructions
Service and maintenance 
OMEGA ACTIVE Emergency power supply    19 
Service and maintenance 
 Have the Emergency Power Supply serviced and its perfect 
functioning verified every six months by CEStronics or a 
CEStronics partner. 
 Replace the batteries in line with a defined maintenance 
schedule for the Emergency Power Supply. 
 Make sure you have replacement batteries ready in good 
time. 
Trouble shooting 
Symptom 
Possible cause and remedy 
Emergency 
opening is not 
possible. 
The batteries of your Emergency Power 
Supply are flat. 
 Check the batteries of your Emergency 
Power Supply. 
Your locking medium is not authorized 
for the locking cylinder concerned. 
 Use the authorized locking medium for 
the locking cylinder concerned. 
The connection between the Emergency 
Power Supply and the locking cylinder is 
faulty. 
 Make sure that the connection has 
been properly established. 
Firmware update 
is not possible. 
The "OMEGA ACTIVE Firmware-Update" 
software is not configured correctly. 
 Ensure proper functioning of the 
software. 










