HBM MP85A Operating Manual page 34

34
Fig. 4.3: Switch for the CAN bus termination resistor (basic diagram)
Replacing the battery
The MP85A process controller has a real-time clock, which is fed by a
CR2032-type lithium battery. It can be removed from the battery holder and
replaced at the point shown in Fig. 4.4. The battery should be replaced about
every five years.
NOTE
The MP85A process controller must be removed from the DIN rail to
replace the battery.
1
Unscrew the
cover
Fig. 4.4: Opening the housing; battery position (basic diagram)
CAUTION
Make sure that the battery is the right way round
HBM
S2
ON OFF
MP85A process controller
Toggle switch S2 for the
termination resistor
2
Battery
for the
real-time clock
A2392−5.0 en