RKI Instruments 49-8103RK - Manual (Page 9)

49-8103RK Standby Battery • 9
Maintenance
This section describes preventive maintenance and troubleshooting procedures. It also
includes component replacement procedures and a parts list.
Preventive Maintenance
Check the standby battery voltage with a volt meter on a quarterly basis and verify that it
is fully charged. A fully charged standby battery connected to a Beacon 110 or Beacon 200
that trickle charges it will typically measure between 28 volts and 29 volts.
Troubleshooting
The troubleshooting guide describes symptoms, probable causes, and recommended
action for problems you may encounter with the standby battery.
Replacing a Battery
If one of the 12 VDC batteries in the standby battery needs replacement, RKI Instruments,
Inc. recommends that both batteries be replaced. The part number for a replacement
battery is listed in the parts list at the end of this section. Follow the instructions below to
replace the batteries.
1. Turn off the controller.
2. Turn off power to the controller.
3. Open the standby battery housing door.
4. Remove the jumper wire that connects the two batteries. It connects to both batteries
with a push-on lug.
5. Remove the remaining two connections to the batteries, the positive and negative
connections, by removing the push-on lugs from each battery.
6. Fix the positive and negative wires out of the way.
7. Push the each battery to the left and right, rocking it from side to side to loosen the
locking strip on the bottom of the battery from the locking strip on the back of the
housing, then pull the battery out of the housing.
NOTE: Dispose of the old batteries properly.
Condition Symptom(s) Probable Causes Recommended Action
Low Battery
Voltage
• The standby battery
voltage measures
below 28VDC at the
quarterly voltage
check.
• The wiring to the
controller is
disconnected or
misconnected.
• The wire nut
connections in the
standby battery are
not properly made.
• The wiring to the
battery terminals in
the standby battery is
disconnected.
• The controller is not
fully charging the
standby battery.
1. Verify that the wiring at the controller is
correct and secure.
2. Verify that the wire nut connections in the
standby battery are properly made.
3. Verify that the lugs that fit over the battery
terminals are securely and correctly
installed.
4. On the Beacon 200, check the DC fuse.
The Beacon 110 uses a polyfuse that
self-resets to protect the DC input and it
is not user serviceable.
5. If the low voltage condition continues,
contact RKI for further instruction.