Landis & Gyr Cashpower Gemini PLC, Руководство пользователя

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22/38 Released Meter Operation - Prepayment Mode
© Gyr (Pty) Ltd Cashpower Gemini PLC
– User Guide
7.5.2.10 Non Meter-Specific Commissioning Voucher
This voucher is typically used to ease the meter installation process by ensuring that the load
remains disconnected and the
tamper detect sensing switch function disabled (meter
decommissioned ). Once the installation is complete and the number entered, the load switch
closes and the tamper detect sensing switch function enabled.
The non meter-specific commissioning voucher number is:
9999 9999 9997 1939
7.5.2.11 Meter-Specific Commissioning Voucher
This is a meter-specific voucher but in all other aspects its operation is the same as described in
7.5.2.10.
7.5.2.12 Meter-Specific Decommissioning Voucher
On accepting a decommissioning voucher, the meter opens the load switch (load disconnected)
and disables the tamper detect sensing switch function.
7.6 Commissioning and Decommissioning the Meter
The function of being able to set the meter into the decommissioned / commissioned mode offers
several advantages to meter installation personnel.
In the case of the Gemini PLC meter, when setting the meter into the decommissioned mode, the
following occurs:

The load switch is set into the open state.

The tamper facility is disabled
When setting the meter into the commissioned mode, the following occurs:

The load switch operates as normal.

The tamper facility is enabled

The meter‟s
commissioned / decommissioned status can be observed in the meter state
register
– 11.13.
7.7 Display Total Units or Remaining Credit at the Meter
This option (configurable at the time of manufacture) is provided for installations where the meter has
a local display and is required to be visually read by a meter reader i.e. the only significant reading
required would be the
total units
– not the normal
remaining credit , which is only of interest to the
customer. Only the meter display will show the total units. The customer interface unit will continue to
reflect
remaining credit .
The status of this function can be observed in the meter option register
– 11.15.
7.8 Power Limiting
The power-limiting feature allows utilities to set the maximum load that can be drawn by customers.
The setting can be changed when necessary via a
set power limit voucher from the prepayment
vending system.
This algorithm is included in the meter‟s software and is implemented as follows: