Meter Overview System Architecture
Meters that do not have Reactive or Apparent energy measurements enabled will only be able to
indicate the direction of the kWh energy. These meters will illuminate Quadrant 1 and
Quadrant 4 to indicate energy flowing to a customer and Quadrant 2 and Quadrant 3 to indicate
energy received from a customer.
Data Display — The Data Display is composed of LCD segments that can display letters, digits,
and symbols. The values can be configured as follows:
• Energy, Demand and Power Factor Values:
▪ Display formats: kilo (10
3
), Mega (10
6
), or unity (10
0
)
▪ Display values of up to five (5) digits
▪ Display up to three (3) decimal places
• Date Format
▪ MM-DD-YY
▪ DD-MM-YY
▪ YY-MM-DD
• Time can be displayed in either 12-hour or 24-hour formats as hh:mm:ss
• A minus (-) sign can be displayed for negative net values
Disk Simulator —The Disk Simulator is an eight-segment bar that is under the Data Display. In
normal operating conditions, the Disk Simulator appears to move from left to right (delivered
power) and increments once depending upon the K
h
value. In reverse power conditions, it
appears to move from right to left.
Buttons
Alternate Mode
Activating this button manually changes the meter from its present mode to display and scroll
through the Alternate Display Register List that was configured through iConFig. Also, while in
Test Mode, this button allows you to scroll through the Test Mode Display List items.
Demand Reset
Activating this button causes the meter to:
• Store a copy of all billing register data to the Previous Demand register.
• Add the present Peak Demand values to their associated Cumulative Demand values.
• Resets the Peak Demand value to zero (0).
Test
Activating this button manually changes the meter from its present mode to Test Mode. Pressing
and holding this button for three seconds causes the meter to enter ‘Test Lock’. See
“Test Mode Lock” below.
Infrared LED and Sensor
The infrared LED, sensor, and supporting circuitry combine to make up the electronics of an
ANSI Type 2 optical port. The signal levels conform to the ANSI C12.18-1996 Protocol
Specification for ANSI Type 2 Optical Port.
Version 1.0 Meter Overview 2-13
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