Sun Yeh Electrical M Series, Operation Manual, Page: 67 / 75

【M Series】Multi-turn Electric Valve Actuator
64
2021.06
9 Servicing and Maintenance
9.1 Battery Maintenance
Definition
：
The battery supports to record the position variation when using the manual override
under power outage.
Types
：
Notices
：

Replace the battery when the main power is energized.
Replacing the battery under power outage will cause the error of the data
logger records.

In normal condition, the battery needs to be replaced every 3 years. The ambient
temperature and operating conditions may affect battery life.

Remove the sealing plug with a 10 mm Alley key to ensure the O-ring exists
when power is energized.
Battery Replacement:
a. Remove the sealing plug with 10mm Allen key.
b. Pull out the battery case.
Do Not pull it out too hard to cause the wires loosed.
c. Tighten the sealing plug after replacing the battery.
d. Set the battery type via LCD interface (Refer to section 8.5.4).
Battery Type Detail Spec.
Quantity
Primary Alkaline battery AA
3 PCS
Primary lithium Battery LS 33600
1 PCS
Primary lithium Battery
Type: LS 33600
Sealing Plug
O-ring
Primary Alkaline battery
Type: AA
Sealing Plug
O-ring