Landis & Gyr Cashpower Gemini PLC User manual - page 21
Meter Operation - Prepayment Mode Released
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Cashpower Gemini PLC
– User Guide
© Landis+Gyr (Pty) Ltd
7.5.2.2
Key Change
It is generally desirable to „hide‟ a key-change sequence from the customer. To this end, some
variable amount of credit is also embedded in the voucher.
This is a limited range of credit values i.e. a choice of 8 pre-defined values in
102.4kWh steps.
7.5.2.3
Initial Key Change Voucher
An initial key change number is treated in exactly the same way as a normal key change number
–
7.5.2.2.
7.5.2.4
Tamper Reset Voucher
If a meter has been tampered, normal operation can only be restored by entering a tamper reset
voucher. Note that these vouchers also reset the power-fail counter
– 11.18.
7.5.2.5
Set Power Limit Level Voucher
Unlike STS, there are a limited number (16) of pre-defined current limit settings available on the
proprietary algorithm:
0, 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, 65, 70 and 100 Amps.
A value of 0 disables the power limiting function.
NB: These current limit values get converted to an equivalent power limit value based on the
nominal system voltage personalized into the meter at the time of manufacture. Although the
meter will disconnect the customer‟s load when the measured power limit threshold is exceeded,
variations in line voltage will result in this happening at proportionately different current levels.
On accepting a power limit level number, the meter loads the appropriate power limit level in amps
from the power limit table and converts it to Watts by multiplying by the nominal system voltage (as
indicated on the meter label).
Note: It is possible to configure the meter at the time of manufacture to display the power limit
setting in either Amps or Watts when viewed via the information registers
– 11.11 and 11.15.
7.5.2.6
Set Credit Levels Voucher
On accepting a set credit level number, the meter sets the appropriate high and low credit levels.
These are the levels at which the segments in the „wedge‟ of the LCD credit indicator toggle – 6.6.
7.5.2.7
Reset Meter (Clear Credit Register) Voucher
On accepting a reset meter voucher, the meter clears any remaining credit to zero and opens the
load switch, thus interrupting the supply to the customer.
7.5.2.8
Clear Log Voucher
On accepting a clear log number, the meter clears all existing log entries and the log starts afresh.
7.5.2.9
Non Meter-Specific Initiate Breaker Test Voucher
On accepting a non meter-specific initiate breaker test voucher, the meter opens the load switch for
a short period of time (factory-defined setting of approximately 15 seconds) and then returns to
normal operation.
The non meter-specific initiate breaker test voucher number is:
9999 9208 1566 9249