Eppendorf CO2 Back-up System - Manual (Page 26)

Maintenance
New Brunswick CO2 Back-up System
English (EN)
26
8.3 Electrical connection maintenance
All electrical cables should be checked every month. Failure to do so may result in failure of the device. If
damage is found, do
not attempt to repair by yourself.
1. Turn off CO
2
Back-up System and unplug the power cord from the mains.
2. Inspect the power cord, door switch cable, solenoid cable, and temperature sensor cable for cuts or
other damage.
3. If damage is found, contact a qualifed service engineer to replace the damaged parts.
8.4 Battery maintenance
The CO
2
Back-up System runs on a rechargeable battery during a power failure.
Contact a qualified service engineer to replace the battery every 5 years or when the Low Battery Alarm
sounds despite it being plugged into the mains.
8.5 Transfer line and manifold maintenance
A qualified service engineer should inspect the CO
2
transfer lines from the gas bottles to the solenoid valve
annually.
8.6 Maintenance forms
WARNING! Battery
 Do not attempt to replace or repair battery by yourself.
 The control unit contains mains voltage.
Period Place the task Task Personnel
Weekly Near device Clean with damp rag if
necessary. User
Weekly Near CO
2
supply Weigh CO
2
supplies to
see if they are full.
User
Monthly Near device Check for cuts or
abrasions on all electrical
wires. User