Sauter flexotron®800
ventilation
Other functions
P100012082
112
18.6
Changing the battery
This procedure requires knowledge of proper ESD protection; i.e. an earthed
wristband must be used!
When the alarm
’’Internal Battery’’ is activated and the battery LED lights up red, the
battery for backup of program memory and real-time clock has become too weak. The
battery is replaced as described below. A backup capacitor saves the memory and
keeps the clock running for at least 10 minutes after the power supply is removed.
Therefore, if the battery replacement takes less than 10 minutes, there will be no need
to reload the program, and the clock will continue to run normally.
The replacement battery must be of the type CR2032.
Remove the cover by pressing down the locking torques at the edge of the cover using
a small screwdriver, and at the same time pulling the edges outwards.
Battery location
Grip the battery firmly with your fingers and lift it upwards until it rises from its holder.
Press the new battery firmly down into place. Note that to preserve correct polarity, the
battery can only be inserted the
‘‘right way round’’.
