Helmer Scientific i.Series
®
and Horizon Series
™
Freezer - Undercounter
Service and Maintenance Manual
360417/A
29
4.2
Test and Replace Back-up Batteries
i.C
3
Monitoring System Back-up Battery
On all i.C³ screens, the Battery icon will appear in the header bar when the system is running on battery power and the screen
brightness will automatically be reduced. The monitoring system will automatically disable some features to extend battery life.
Check the Battery.
1. Switch the AC power switch OFF.
2. The screen should continue to display information with reduced brightness and the battery icon will appear on the
screen. If the display is blank, replace the battery.
3. When completed, switch the AC power switch ON.
Note
Use only a battery which meets manufacturer’s specifications.
Access Control Back-up Battery (Optional)
During an AC power failure, the Access Control back-up battery provides back-up power to operate the magnetic
Access Control lock.
Test Access Control Back-up Battery.
1. Ensure the monitoring system/Access Control battery key switch is switched ON.
2. Switch AC power switch OFF.
3. Attempt to open the cabinet door.
4. If the door remains locked, the battery is functional.
5. If the door does not remain locked, replace the battery.
6. Switch AC power switch ON.
Remove and Replace Battery
Take care not to short the battery terminals to the bracket or to each other when removing or attaching terminal
connectors, bracket or bracket screws.
1. Switch the battery back-up switch OFF; switch the AC power switch OFF; disconnect the AC power cord from the
power receptacle.
2. Use a #2 Phillips screwdriver to remove the top and bottom
center screws and loosen the four screws in the corners of the
right-side panel.
3. Slide the cover upward to disengage the four screws from the
keyhole openings and carefully rotate the panel outward.
4. Locate the 12V battery, remove the wires from the terminals and using
a #2 Phillips screwdriver remove the screw from the mounting bracket.
Remove the old battery.
5. Place the new battery in the same location as the one removed.
6. Install the bracket over the battery and secure with the screw.
7. Reconnect the wires to the correct terminals.
8. Reinstall the right-side panel by placing the keyhole openings in the
four corners of the panel over the four screws and slide downward making sure not to pinch wires between the panel
and the base of the unit. Tighten screws using a #2 Phillips screwdriver.
9. Install the remaining two screws and tighten.
10. Reconnect the AC power cord; switch the AC power switch to ON; switch the battery back-up switch to ON.
Chart Recorder Back-up Battery (if included)
Refer to Temperature Chart Recorder Operation and Service Manual.
i.Series
