Rice Lake 820i Programmable Indicator/Controller - Installation Manual - Manual (Page 15)

Installation 11
2.8 Battery Replacement
The lithium battery on the CPU board maintains the
real-time clock and protects data stored in the system
RAM when the indicator is not connected to AC
power.
Data protected by the CPU board battery includes
time and date, truck and tare memory, onboard
database information, and setpoint configuration.
Use
Revolution to store a copy of the indicator
configuration on a PC before attempting battery
replacement. If any data is lost, the indicator
configuration can be restored from the PC.
Watch for the low battery warning on the LCD display
and periodically check the battery voltage on both the
CPU board and on any installed memory option cards.
Batteries should be replaced when the indicator low
battery warning comes on, or when battery voltage
falls to 2.2 VDC. Life expectancy of the battery is ten
years.
Replacement Procedure
For best results, replace the battery while in weigh
mode and with AC power applied. Use care not to
bend the battery retaining spring.
If the battery must be replaced with power removed,
do the following immediately after restoring power:
1. Place indicator in setup mode.
2. Go to the Version Menu and press the
Reset
Config
softkey. If connected using Revolution ,
configuration can be reset by using monitor
mode to enter the RESETCONFIGURATION
command followed by the RS command.
See Figure 2-3 on page 9 for CPU board battery
location and orientation (positive side up).
Caution
Risk of explosion if battery is replaced
with incorrect type. Dispose of batteries
per manufacturer instruction.
2.9 Parts Kit Contents
Table 2-5 lists the parts kit contents for the universal
model of the 820i .
Table 2-5. Parts Kit Contents
PN Description
14626 Kep nuts, 8-32NC (3)
14862 Machine screws, 8-32NC x 3/8 (12)
75062 Sealing washers (14)
15133 Lock washers, No. 8, Type A (5)
30623 Machine screws, 8-32NC x 7/16 (2)
15631 Cable ties (8)
15665 Reducing gland for 1/2 NPT cord grip (1)
15887 6-position screw terminal for load cell
connection (1–single A/D, 2–dual A/D)
19538 Cord grip plugs (4)
94422 Capacity label (1)
53075 Cable shield ground clamps (5)
76514 6-position screw terminal for J10 (1)
76513 4-position screw terminal (1) for J9
71344 10-position screw terminals for J5 and J11 (2)
42149 Rubber feet for tilt stand (4)
15144 Nylon washers for tilt stand, 1/4 x 1 x 1/16 (2)
68403 Wing knobs for tilt stand (2)
77925 Indicator/HMI Software Tool Kit CD