Landis+Gyr E470 Series User Manual page 136

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Testing:
(note, this should only be attempted if this can be done safely with a
suitable test stand or jig)

Power up meter and perform functional check.
Checks that the display and buttons work and that the meter can
measure energy.

Check the display illuminates on power up.

Check the date and time is correct on the meter.

Briefly loosen the terminal cover screw sufficiently to activate the
terminal cover tamper switch thus activating the Service Menu on the
meter giving access to the "HAN unjoin" function.

Check that the meter has NOT been previously commissioned (as
indicated by the (c) symbol on the HAN display).
If previously commissioned then the meter may contain sensitive data
(e.g. personal data, consumption data, security credentials, firmware
code) and must be returned to Landis+Gyr for refurbishment. To
display the commissioned indicator refer to section 6.5.4.2.

Check that a privacy PIN has NOT been set – if it has then then the
meter may contain sensitive data (e.g. personal data, consumption
data, security credentials, firmware code) and must be returned to
Landis+Gyr for refurbishment. To display the commissioned indicator
refer to section 6.5.4.2.

Perform "HAN unjoin" function to unjoin the meter from the HAN, clear-
ing the ZigBee bindings and thus allowing it to join another HAN in the
future.

Return meter to the field or if meter has been commissioned, or a
privacy PIN has been set, then return it to Landis+Gyr for
refurbishment.

Check and note the firmware version running on the meter to
determine if this is suitable for re-use.

Check meter logs for unexpected entries or repeating patterns.

Check security log (accessible via service menu) for any security
events or tamper attempts.
Recording:

Maintain records of meters that have been through triage keeping
records, where possible, of
o Meter history
o Any commands or service requests sent from customer
systems
o Failure information

Check for meters that have been through the triage process on
multiple occasions but are still not displaying an obvious fault (no fault
found). These meters should be flagged as potentially faulty and may
need to be returned to Landis+Gyr.
D000058620 en a – E470 Series 3 SMETS2 100 mm – ZCX310 – User Manual and Functional Description
Issue 1.2 Measures in the event of faults