Jim ‘Slim’ Mimlitz, SCADAmetrics
Emerson / Rosemount manufactures a broad line of flow meters, serving the industrial process, municipal water, and municipal wastewater industries. Here at SCADAmetrics (Wildwood, MO), we manufacture flow metering instrumentation in support of these industries, with the stated mission of helping users extend such meters for enhanced SCADA and AMI interoperability and functionality.
Like many manufacturers of process-oriented flow meters, Rosemount’s signaling options are focused upon 4-20 milliamp, pulse, Modbus, and HART. Today, the new SCADAmetrics model PTE Pulse Encodalizer™ is able to leverage the available pulse output on the Model 8750w magnetic flow meter (and others) to generate additional AMI signaling and display options — thereby bridging the gap to solve the unique challenges facing the Utility AMI sphere.
Within each Rosemount 8750w (and certain other model) Transmitter, a pulse-per-volume output terminal is available. This output can be configured to provide a utility with an encoded AMI signal of forward totalized flow via a SCADAmetrics model PTE Pulse Encodalizer.
Forward Totalization Reported to AMI System
The following graphics illustrate how the Pulse Encodalizer can be used to transmit Forward Totalization to an AMI/AMR system. Most (but not all) municipal metering applications are uni-directional (forward flow only). Note the connection from the 8750w Transmitter Pulse Output Terminals (Pulse+,Pulse-) to the Pulse Input Terminals of the Encodalizer (Terminals 2,3):
Conclusion
The PTE Pulse Encodalizer translates the Rosemount 8750w magnetic flow meter pulse count to a connected AMI/AMR system using the industry-standard, 3-wire encoded protocols: both Sensus Protocol and Neptune Protocol. Therefore, all major AMI systems are supported.
The Encodalizer is powered by a user-replaceable battery pack, which offers a life up to 10 years. The Encodalizer features a 9-digit LCD display of the Pulse Count / Totalization. When commissioning the Encodalizer, the user should pre-edit the 9 digits — in order to synchronize (match) with the totalization displayed on the LCD screen of the Rosemount 8750w.
Anticipated Encodalizer / Rosemount 8750w applications include (but are not limited to):
- Connect distribution magmeters to potable water AMI systems
- Connect wastewater custody transfer flow meters to AMI systems
- Connect wastewater lift station flow meters to AMI systems
In addition to the Rosemount 8750w, the PTE Pulse Encodalizer can be used to connect other types of Rosemount pulse meters to AMI systems, as well. The only requirement is that the connected flow meter provide a 2-wire, passive pulse-per-volume output.
Although this article focuses on Rosemount flow meters, the Pulse Encodalizer is able to count pulses from most 2-wire, pulse-type flow meters (magmeters, wastewater meters, gas meters, steam meters, reclaimed water meters, irrigation meters, etc…) — and convert to the industry-standard 3-Wire Encoded protocol.
Want to Learn More?…
Are you interested in learning more about how SCADAmetrics flow instrumentation, when paired with Rosemount magnetic flow meters, can provide a wealth of value-added AMI and visual display options? Give us a call!… We’ll be glad to discuss the details!