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What is the battery life of the PM800 series meter?

Issue:
A User needs to obtain information regarding the battery life of the PM800 series meter.

Product Line:
PM800 series meters

Environment:
PM800 series meters

Cause:
A User needs to obtain information regarding the battery life of the PM800 series meter.

Resolution:
The PM800 series battery is rated at 120mAh. The battery is used in the absence of control power to keep the processor clock active. The battery is not activated at the factory, but instead when the time is first set in the device.
If the meter does not have control power (inactive) applied:

Battery Capacity: 120mAh
Battery Draw: 0.001mA
Battery Life: Approx 13.7 years

If the meter does have control power (active) applied:

Battery Capacity: 120mAh
Battery Draw: 0.0001mA
Battery Life: Approx 137 years


Note: The PM810 does not have a battery. Only the additional logging module (PM810LOG) gives the PM810 real time clock capability which is what the battery is used for.

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