Honeywell DCP551 Mark ΙΙ User Manual page 181

Battery replacement procedures
HANDLING PRECAUTIONS
• Replace the old battery with a lithium battery (model no.:81446140-001).
• Do not use metal tools to remove or attach battery connectors as this could
• A capacitor backs up the memory during battery replacement. To charge this
When the BAT LED starts flashing, replace the battery according to the following
instructions.
(1) Leave the power on for about 10 minutes.
(2) Turn off the power.
(3) Open the console key cover and remove the lock screw under the ENTER key
Batteries can be ordered from Honeywell sales or service office.
short-circuit electric circuits inside.
capacitor, supply power to the DCP551 for about 10 minutes. Replace the
battery less than 24 hours after the power supply has been turned off.
using a Phillips screwdriver.
>>Slide the controller out of the case.
Chapter 10. TROUBLESHOOTING
10-9