56 Maintenance
HP-327
HIT-4U
3. Lift the display/keypad assembly from the enclosure, making sure the
circuit assembly does not contact the enclosure.
4. Loosen the Velcro strap, disconnect the battery from the J3 connector
on the circuit assembly, and remove the battery from the enclosure.
5. Install the new battery in the enclosure in the same position as the
original battery, and secure the Velcro tightly around the battery.
6. Connect the replacement battery to the J3 connector.
7. Place the circuit assembly over the standoffs and fasten with the two
#4-40 screws, ensuring that all connector wiring is inside the
enclosure.
8. Replace the enclosure cover, threading it onto the enclosure in a
clockwise direction.
NEMA Enclosure:
1.
Loosen, by turning counter-clockwise, the screws in each corner of
the enclosure cover to remove.
2.
Remove four #4-40 thumb screws from the front panel by turning
counter-clockwise.
3.
Lift the display assembly from the enclosure.
4.
Loosen the Velcro strap, disconnect the battery from the J3 connector
on the circuit assembly, and remove the battery from the enclosure.
5.
Install the new battery in the enclosure in the same position as the
original battery, and secure the Velcro tightly around the battery.
6.
Connect the replacement battery to the J3 connector.
7.
Replace the display assembly and enclosure cover.
Important:
The interruption of power to the HIT-4 will cause the
internal clock time to be inaccurate. After replacing the
battery, set the date and time via the HIT-4 Communication
Program or use the front panel keys.
Battery shelf life is estimated at 10 years at a storage temperature of 25° C.
Flow-Tech, Inc. | In MD 410-666-3200 - In VA 804-752-3450 | www.flowtechonline.com
