Changing The Battery - Landis+Gyr E650 Series 4 User Manual

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7.2

Changing the battery

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© Landis+Gyr
If the meter is provided with a battery, this must be changed if one of the
following events occurs:

The symbol appears on the display.

The battery has been in the meter for more than 10 years (preventive
servicing). It is recommended to note the date of insertion on the
battery. The 10 years depend on the product and on the age of the
battery when inserting it into the meter.

The battery operating hours counter indicates over 80,000 hours (can
be read under code C.6.0 in service mode).

The battery charge indicates less than 4.8 V (can be read under code
C.6.1 in service mode).
Meters with or without battery
Only meters parameterised as "fitted with battery" have the
and the battery operating hours counter.
Dangerous voltage on contacts in the battery compartment
The contacts in the battery compartment may have mains voltage applied
(F circuit). Therefore only remove the battery with the existing battery
holder and insert the new battery only with the battery holder. Ensure that
the contacts are never touched.
Replacement battery
As a replacement, use only a lithium battery with a rated voltage of 6 V and
the same construction as the original battery.
Procedure:
1. Remove the front door seal.
2. Open the front door.
The battery compartment is on the left below the liquid crystal display.
Figure 80. Battery compartment
D000062026 en a – E650 Series 4 – ZMD400AT/CT, ZFD400AT/CT – User Manual
Maintenance
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