T20 ARMOURED DOOR
LOW BATTERY CHARGE INDICATION
1 - When the electronic card battery charge is low, but with a
good margin before complete exhaustion and therefore board
deactivation, the buzzer on the external plate emits a series of
"beeps" for the 10 seconds while the knob is being unlocked
to indicate low door battery charge and that the battery should
be replaced.
After about 100 opening cycles in the low charge condition,
the battery enters the emergency charge condition, in which the
door can only be unlocked by holding down the C10 key button
(RED, GREEN, GREY) for 10 seconds.
2 - When the C10 key battery charge is low, but with a good
margin before complete exhaustion and therefore board
deactivation, the buzzer on the external plate emits a series of
double beeps at regular intervals for the 10 seconds while the
knob is being unlocked to indicate low door battery charge and
that the battery should be replaced.
REPLACING THE ELECTRONIC CARD BATTERY
W e r e c o m m e n d y o u r e p l a c e t h e b a t t e r y a s
c h a r g e s t a r t s t o r u n l o w ( r e p e a t e d l y i n d i c a t e d b y
buzzer), well before emergency status is reached.
N.B.: The lock must be in the rest state and alarm
system disarmed
To change the battery:
1 - Turn the top of the battery
holder on the outer edge
of the lock side of the
door by 90° and work it
off with a screwdriver or
coin.
2 - Remove the battery,
p u s h i n g a g a i n s t t h e
i n t e r n a l s p r i n g t o
prise it out.
N . B . : t h e n e x t s t e p
must be completed in
no more than 3 minutes
to prevent any loss of
data which would require
initialization procedures
to be repeated (the same
steps as those listed for
" R E P L A C I N G T H E
C10 ELECTRONIC
KEYS").
3 - Insert the new lithium battery from the negative end fi rst.
4 - Replace the top on the battery holder.
MTPBB06-25 - Rev. 00
MAINTENANCE
before changing the battery.
CLOSING CAP
GB
-
+
59