In the scope of this project, Williamsville installed EtherMeters into their existing distribution SCADA system for the purpose of automated report generation, flow monitoring, and leak detection.The custody-transfer master meter was a Badger 6 Inch T2000 Turbo Meter outfitted with an ADE Encoder Register and supplied by Midwest Meter (Edinburg, IL). Springfield concurrently wished to read this meter using a 60W ERT Endpoint (manufactured by Itron) as part of its radio-based AMR system. It was important to both parties that Williamsville’s SCADA/metering system and Springfield’s AMR system coexist without disruption to the other’s system.
To achieve harmonious sharing of the master meter, it was necessary to split the meter signal using a SCADAmetrics RRF-50 “Radio-Read Filter”. This unit was installed within a small junction box within the master meter vault, essentially allowing the two meter-reading devices to be connected in parallel to the single encoder-based register. The vault did not contain power, but this was not a hindrance, since the Radio-Read Filter does not require an external power source.
The flow-metering upgrade to Williamsville’s SCADA system provides tracking of total and zoned consumption — a vital tool for detecting and pinpointing leaks.
A Few Useful Application Notes (Courtesy of Itron Technical Support):
1. The Badger ADE register for the 6 Inch T2000 Turbo Meter was pre-fitted with an Inline Connector for the Itron W60 ERT Endpoint. The internal conductor color-coding for this type of cable is non-standard. The color-coding is as follows: BLACK (Tx or CLK), RED (Rx or DATA), SHIELD/DRAIN (CMN).
2. Before initially connecting an Itron 60W ERT endpoint to the ADE register, ERT initialization is sped up applying the Itron-supplied shorting cap to the ERT. This places the ERT into fast-mode for 15 minutes or until the ADE register is recognized (whichever time period is shorter). Internally, the cap places a jumper/short across the Rx/DATA line (RED) and the CMN line (SHIELD).
3. Hookup Diagram: