Honeywell ERX350 User Manual page 182

7.5 Removing and Re-Installing Modem Mounting Cover Plate
7.5.1 Replacing the Battery in a Hazardous DIV-1/ZONE-0 Environment
A special operating mode is provided to allow changing of a battery pack in a hazardous location. (If the
location is known to be non-hazardous, for example, if the location has been tested for the presence of
gas and it has been determined that gas is not present, this section can be skipped. Go to the Replacing
the battery in a non-hazardous environment section). The special operating mode puts the corrector in a
standby condition in which volume continues to be accumulated and event logging and alarms are still
active, but all other functions are stopped to ensure very low power drain. This allows a low power battery
(40-6054) to be plugged in while the main battery pack is changed, and then removed after the new
battery is plugged in.
To replace the battery in a hazardous DIV-1/ZONE-0 environment, perform the following steps:
1. Enter HMI and set the ERX350 to Battery Change mode. You can use the L2.11 or L3.13 HMI
menus.
2. The BATT CHNG message is displayed on the display screen. Press the Enter key.
3. Select Yes and press Enter. The unit is now ready for a battery change out. CHNG BATT THEN ESC
is displayed on the display screen.
4. Plug the Swapout Battery (part no. 40-6054) into the open connector on the battery Y cable.
Honeywell
2023
7.5 Removing and Re-Installing Modem Mounting Cover Plate
7 Maintenance
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