User's Manual

Table Of Contents
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REX Meter
3 Operating Instructions Technical Manual
3-6 30 November 2006
Reading the REX
Meter
The REX meter can be read two ways:
visually using the LCD
remotely using the 900 MHz radio and the Elster Electricity AMR system
For more details on the information that can be read on the LCD, see Appendix
B, “Display.”
Table 3-1 shows the information that can be obtained from the REX meter using
the 900 MHz radio.
Table 3-1. Information read from the REX meter using the radio
Category Items
Energy
• kWh energy for up to 4 rates of the selected metered quantity
• Total kWh received
• Total kWh energy of the selected metered quantity (for REX
meter firmware releases 2.0 and higher)
Demand Demand for up to 2 quantities where each quantity may be one
of the following:
• Total kW
• kW for a specific rate
In firmware release 1.0, demand data is read in the format of
4.2 (xxxx.xx). In firmware release 2.0 and higher, demand data
is read in the format of 3.3 (xxx.xxx).
Counters
• Number of demand resets
• Number of power outages
Each counter rolls over after 255 events have occurred.
Status flags
• Demand threshold exceeded since last demand reset
• Meter is scheduled to perform a demand reset at the next
midnight crossing
Error flags
• ROM checksum error
• Power fail data save error
• General configuration error
• Table CRC error
• Improper meter engine operation error
Line voltage per phase rms voltage at the time of the meter read