Technical data

Rittal Modular Safe LMS 9.3 Operation and functionality
We reserve the right to make technical changes Version 2.2
Operator Manual Page 37
Power supply
Power is supplied to the lock via a 9 V block battery (exception: power supply via alarm system). We rec-
ommend the use of an alkaline/manganese battery with reduced heavy metal content.
When replacing batteries, please ensure environmentally-friendly disposal by using recycling/collection
boxes. Never throw empty batteries into fire, water or domestic rubbish.
Undervoltage indicator
Step Display
1. After confirmation of ON. 10 x
2. Change the battery immediately.
A low battery voltage is indicated when the red LED blinks ten times after pressing the ON key.
There is still
enough power left for approx. 50 more openings, but no more programming operations may be undertaken.
If you do not change the battery for an extremely long time, the total number of possible opening operations
may be reduced due to self-discharging of the battery.
If access from the outside is not possible, in the event of the battery running flat or developing a fault, the
lock must be opened using the revision key (see page 37).
Replacing batteries in separate battery boxes
Slide the battery box drawer in the direction indicated by the arrow (ribbing on drawer) and pull it out com-
pletely. Remove the used battery and insert a new one. Insert the drawer and slide it back in until you hear it
click into place.
Inspection flap with key
I
f, for example, you forget the code, the lock can be opened using the revision key. To expose the keyhole,
use a suitable tool to remove the cover on the operating unit.
The lock will interpret the removal of the operating unit as an attempt at sabotage. This removal operation
will be output as a signal on each subsequent operation following code entry. The alarm signal must be
cleared.