Network Terminal Installation, Operation, and Maintenance Instructions
P/N 8040375G001
5-1
C
HELIX TECHNOLOGY CORPORATION
-
TI
CRYOGENICS
Section 5 - Maintenance
Memory Backup Battery
The memory backup battery is the only part within the Network Terminal
that you can maintain. This battery provides memory backup capabilities
for items such as rough valve maps, multi-pump REGEN programs, and
the unit serial number when AC power is removed from the Network
Terminal.
The memory backup battery is a 3.0 Volt, Panasonic P/N BR2325 lithium
battery.
Symptoms
You can suspect the battery voltage being low if the following parameters
cannot be retained by the Network Terminal:
•
Rough Valve Maps
•
Multi-pump REGEN Programs
•
Unit Serial Number
Battery Voltage Test
Use the following procedure to see if the memory backup battery is in need
of replacement.
WARNING
Make sure the Network Terminal is disconnected from the supply
voltage before performing this procedure.
CAUTION
Make sure that you and the Network Terminal are properly grounded
to prevent electrostatic damage of chassis components.
1. Turn power OFF to the Network Terminal and remove the
power cord from the power source.
