Page 64 of 69
Issue: 1.8
Measures in the Event of Faults
© Gyr
E470 Tokenless Smart Prepayment Meter
14 Measures in the Event of Faults
14.1 Operating Faults
If the LCD window is illegible or the data readout does not function, the
following points should be checked.
Is the mains voltage present? – Are the preliminary fuses intact?
Has the minimum or maximum recommended ambient temperature been
exceeded?
Is the LCD window clear of all debris? – Not misted over, painted over or
soiled in any way.
If none of the above are causing the fault the meter should be disconnected
as per section 12.2, replaced if required as detailed in section 4 and
returned to Gyr as described in section 12.3.
14.2 Disconnecting the Meter
Remove preliminary fuses before continuing
The connecting conductors should not be Live when removing the meter.
Electrically Live parts are a life threatening hazard. Preliminary fuses should
be removed and kept in a safe place until all work is complete, where they
cannot be replaced by anyone unnoticed.
Proceed as follows:
Remove the company seal on the terminal cover (if fitted).
Release the two terminal cover screws and remove terminal cover.
Check with a suitable voltage testing device that the phase
connections are not live. If they are live then remove the
preliminary fuses and keep in a safe place until all work is
complete, where they cannot be replaced by anyone unnoticed.
Remove the signal inputs and outputs by releasing the auxiliary
terminal screws.
Remove the phase connections by releasing the main terminal
screws.
If required fit a suitable replacement meter as described in section
4.
14.3 Repairing the Meter
There are no user serviceable parts inside the meter. Breaking factory
calibration seals will invalidate the calibration status of the meter. In the
event of a meter requiring repair, proceed as follows.
Remove the meter from the installation as detailed in section 12.2.
