Appendix A
H6630EM-LIT 49 Rev. 1.0 11/14
Battery Life/Replacement
Controller
The H6630EM controller does not have any internal battery to replace, none is required.
HMI (Human Machine Interface)
While there is a battery within the HMI, its only function is to power the internal clock.
The program does not require a battery backup. If left in an unpowered state, the battery
life is many years. The replacement battery is a common battery same as used in
watches and calculators. If replacement is deemed necessary, it is commercially
available and the part number CR2032 can be obtained from most consumer retail
stores.
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