User's Manual

VRT T
RANSPONDER
O
VERVIEW
VRT Transponder—User Guide Page 6
AMCO Automated Systems, October 2002 Last Saved:
11/13/2002 10:25 AM
Chapter Three
Chapter ThreeChapter Three
Chapter Three
VRT Transponder Overview
The TRACE VRT Gas Transponder is designed for use with most
residential and commercial diaphragm meters from American Meter,
Equimeter/Invensys®, and Sprague/Schlumberger®. The transponder
can be programmed to work with a fixed factor, pressure-compensating
index. The transponder maintains the current time and date, which are
used to record real-time data for retrieval as required during the normal
read cycle. In addition to maintaining an electronic index (e-index)
reading that corresponds to the meter index reading, the transponder:
• Stores 35 daily index readings in separate e-indexes recorded at the
start of the utility day.
• Maintains up to four time-of-use (TOU) e-indexes that each have
programmable start and stop times.
VRT Transponder and Components
The transponder consists of a high impact plastic housing with rubber
gasket; RF transmitter; receiver; tamper switch; transmit and receive
antennas; battery, and various electronic components.
The transponder is shipped with mounting hardware.
The meter’s existing index and index cover are attached to the
transponder. The index and index cover are not
shipped with the
standard transponder, but in some cases may be purchased separately.
Sprague/Schlumberger
®
Equimeter/Invensys®
American Meter