User's Manual

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REX Meter
E Technical Specifications Technical Manual
E-2 07 April 2006
Operating
Characteristics
General
Performance
Characteristics
Power supply burden Less than 4 W
Current burden 0.1 milliohms typical at +25 °C
Voltage burden 0.907 W at 120 V
1.138 W at 240 V
Accuracy The REX meter meets ANSI C12.20 0.5 % accuracy class.
Starting current Class 20 Class 200 Class 320
Form 1S and Form 3S
10 mA 100 mA 160 mA
Form 2S and Form 4S 5mA 50mA 80mA
Form 12S N/A 50 mA 50 mA
Startup delay Less than 2 seconds from power application to pulse accumulation
Creep 0.000 A (no current) No more than 1 pulse measured per quantity, conforming to ANSI C12.1
requirements.
Primary time base Relative time is maintained by a crystal; real time is provided via the 900 MHz
network.