Latching Relay Status Indicators; Information Mode Indicator; Power Indicator (Kwh); Power (W) Indicator - Landis+Gyr Cashpower Gem Lite User Manual

Residential electricity prepayment meters
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Liquid Crystal Display (LCD)
3.5

Latching Relay Status Indicators

Two icons are used to indicate the status of the internal latching relay.
Under normal operating conditions i.e. with the meter in credit, the latch will be „closed‟ and power is supplied to
the consumer. A second „open‟ indicator is used to indicate that the latch is open, e.g. when credit expires.
3.6

Information Mode Indicator

This icon turns on in response to pressing the i-key on the keypad. It indicates that the meter is in information
mode and the contents of various registers can be viewed.
3.7

Power Indicator (kWh)

This function is used whenever the displayed units represent power (kWh). It applies to both normal meter
operation, and when viewing registers via the information mode.
The icon will be ON when the latch is closed and the load exceeds the minimum creep load (typically 40mA)
and the icon will be flashing when the latch is open and there is no load in excess of the creep limit.
3.8

Power (W) Indicator

This function is used whenever the displayed units represent power (W), such as instantaneous power, or
power limit setting. It applies to both normal meter operations, as well as when viewing registers via the
information mode.
3.9

Remaining Credit Indicator

This „wedge‟ provides a quick visual indication of the remaining credit in the meter.
The indicator functions as follows:
All four credit wedge icons are displayed if the value in the current credit register is above the
pre-set high credit level.
The three smallest wedge icons are displayed if the value in the current credit register is
somewhere between the pre-set low credit level and high credit level.
The two smallest wedge icons are displayed if the value in the current credit register is
somewhere between the pre-set low credit level and half of that level.
The smallest wedge icon is displayed if the value in the current credit register is somewhere
between zero and half of the pre-set low credit level.
All the credit wedge icons will be off when the meter runs out of credit (zero or negative
values).
Cashpower Gem Lite – User Guide
Review
Under normal operating conditions e.g. with the meter in credit, the latch
will be closed. It will open when credit expires.
Note that the information mode automatically times out after a period of 1
minute in the absence of any further interrogation.
The power (kWh) icon will flash on and off if no measurable energy is being
consumed.
The actual credit levels at which the individual bars in the „wedge‟ icon
toggle are personalised at the time of manufacture but can be changed at
any time with a maintenance token.
9/27
© Landis+Gyr (Pty) Ltd

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