Dresser-Roots Rotary Natural Gas Meter with Pulse-Output Option.

In order to track and minimize utility costs, a growing number of forward-thinking, modern factories have initiated efforts to monitor utility usage in realtime — including electricity, water, and natural gas.  And such monitoring does not only occur at the utility-owned meters, but within the factory itself so that a breakdown of the utility costs Read More →

VFD_EtherMeter_FlowMeter_001s

In this article, we are going to introduce a novel method of quantifying pump station energy efficiency.  For an automobile, everyone is familiar with Miles-Per-Gallon or MPG.  Today, we are going to introduce an equivalent measure of pump station efficiency that every Telemetry/SCADA system should include: GPK.   Automobile Efficiency… Have you ever calculated the average gas mileage for Read More →

Badger HRE-LCD Meter Register.

SCADAmetrics is pleased to report that the EtherMeter has been verified compatible with the new high-resolution, absolute-encoder water meter registers offered by Badger Meter (Milwaukee, WI). Badger’s new register family — the HR-E (High Resolution Encoder) — offers vastly improved resolution over its legacy absolute encoder, the 6-Digit ADE. The High Resolution Encoder is offered in two variations: Read More →

Accumulating Flow Totals From a 4-20mA Flow-Rate Signal.

When totalizing the total accumulated flow through a non-absolute-encoder flow meter, it is generally preferable to interface with a pulse-per-volume signal (eg. 1 pulse per gallon). However, certain flow meters only offer a 4-20mA signal that is proportional to rate-of-flow. Examples include certain WH Power Meters, Parshall Flume-Type Wastewater Flow Meters, Differential-Pressure Flow Meters, and Read More →

RG600 Tipping Bucket Rain Gauge.

This article describes how to use an EtherMeter to connect a Tipping Bucket Rain Gauge to a SCADA System, yielding a realtime rainfall measurement system that communicates using Modbus, DF1, and EtherNet/IP. This rain measuring instrumentation was a component of the new SCADA System at the DesMoines & Mississippi Levee District (Alexandria, MO).  The electronics were Read More →

KeySpan_USA19HS

In order to set up an EtherMeter, you will need a computer equipped with a serial port, terminal emulation software (eg HyperTerminal), and a SCADAmetrics Serial/Setup Cable. A convenient way to add a serial port to a notebook or desktop computer is with a USB-Serial Adapter. In my experience, the make/model that provides the best combination of performance Read More →

SCADAmetrics Analog Flow-Output Demonstrator Panel

In most cases, EtherMeter users will collect flow rate data via the device’s digital Ethernet and Serial communication channels.  Digital communication protocols include MODBUS (TCP/RTU/ASCII), DF1, and EtherNet/IP™. However, in some instances, the user may wish to interface to 4-20mA analog signals that are proportional to flow.  Replacement of Sensus ACK-PAK instrumentation is just one possible Read More →

Sensus_High_Speed_Pickup_002[1]

In addition to its ability to read most encoder-type flow meters, the EtherMeter also features pulse-input support. The following Application Note details the procedures for connecting a Sensus High-Speed Pickup (Pulse) Register to an EtherMeter; and it also describes an example of modified Setup Menu parameters for the High-Speed Pickup: http://scadametrics.com/PDF/App_Note_014.pdf Note that the Sensus Read More →

Thermistor Demonstration Panel.  AIN1 = 52.13%, Which Corresponds To 9183 Ohms (Thermistor) And 80.5 degF.

A new application note has been posted to scadametrics.com that describes how to set up one of the EtherMeter’s analog input channels to collect temperature data from a thermistor: http://scadametrics.com/PDF/App_Note_011.pdf This type of application could be particularly useful in building automation and industrial control applications where full use of the EtherMeter’s auxiliary I/O channels could Read More →

Williamsville (IL) Pumping Station.  Station features a Ground Storage Tank and Altitude Valve, a Master Meter, 2 Pumps, and a Bypass Valve.  Williamsville's station is run by an intelligent RTU connected to their Radio SCADA system.  Springfield, the bulk seller, monitors the master meter using an Itron radio AMR system.

Recently, an interesting project was completed at the water custody-transfer point between Williamsville (IL) and Springfield (IL), where Williamsville purchases bulk water from Springfield and transmits it through a system of water towers, pumping stations, and distribution mains. In the scope of this project, Williamsville installed EtherMeters into their existing distribution SCADA system for the purpose of automated report Read More →

An EtherMeter Connected To A JACE-Tridium System Via Modbus/RTU over RS485.  The System Is Monitoring Total Consumption And Flow-Rate For Two Connected Water Meters (Sensus SR and Sensus Compound).  This Facility Houses A Fortune-500 Software Company In The Boston Area.  A Pair Of SCADAmetrics Touch-Read Filters Allow Both The Utility AMR System And The Building Automation System To Share The Meter Signals.

The EtherMeter contains an RS485 port for Modbus/RTU and DF1 communications in multi-drop applications. When using the RS485 port, the following EtherMeter terminals are used: 19  –  RS485A (-) 20  –  RS485B (+) 21  –  Signal GND Reference (contains current-limiting resistor) In order to use RS485, attention should be given to the EtherMeter’s dip switch positions: Switch 1  Read More →

3 Preciseline pressure transducers and 1 EtherMeter connected to the pump station's multi-drop Modbus/RTU (RS485) network.  The transducers are monitoring effluent pressure, influent pressure, and ground storage tank level. (Click to zoom.)

The Preciseline Pressure Transducer (manufactured by Keller-America ), like our EtherMeter, offers a digital Modbus-based solution to a water telemetry problem that was previously solved by analog (4-20mA) instrumentation. In the case of the Preciseline, the water pressure signal is converted into Modbus; whereas in the case of our EtherMeter, error-free totalization and flow-rate data is collected Read More →

aps_lajolla_03

The EtherMeter is the only known device that can calculate, transmit, and display rate-of-flow and totalization from all the major encoder-based water meters.  And this fact can come in handy for a multitude of applications. For example, there are often occasions where bulk water users wish to visually monitor flow rate through a variable speed pump or Read More →

Sensus_Prog_013s

A new application note has been posted to the support page of scadametrics.com.  The note documents the procedures for programming a Sensus “ICE” register (index) for maximum metering resolution and EtherMeter compatibility. Maximized resolution improves the connected SCADA system’s ability to monitor realtime flow-rate and totalization from both water and gas meters. While it is preferable (and simpler) for the customer to Read More →

Submeter_Water_Gas_Sensus_001s

The EtherMeter can be used to enable a SCADA system to collect both water and gas meter totalization and instantaneous flow-rate — even simultaneously. An interesting application is the use of a single EtherMeter connected to an encoder-based water meter plus an encoder-based gas meter.  In the example illustrated below, a Sensus SR-II water meter and a Sensus R-275 temperature-compensated Read More →

Actaris_Gas_Water_008sm[1]

A new white paper has been posted to scadametrics.com.  In this paper, methods are described for connecting a combination of water and gas meters to an automation network. Because Itron/Actaris offers encoder-type signaling, in the form of the “Cyble-Coder” technology — in both their water and gas meters — the Itron/Actaris models are emphasized in this article. Click Read More →

Omni_Meter_001sm

When connecting a Sensus Omni Meter (T2, C2, R2, or F2) to an EtherMeter, it is important to connect to the proper Omni cable.  A potential point of confusion is that the Omni meter features two identical, integrated cables.  In order to clarify the wiring, an application note (Application Note #6) has been published on scadametrics.com with wiring Read More →

Over at control.com, a PLC engineer was working to troubleshoot the connection between two PLC’s. Having done this way back when, I decided to post what I think was a pretty nifty solution. (Besides, this could be useful for troubleshooting communications between any two pieces of computer equipment, including an EtherMeter.) In my case, I had both a master Read More →

EtherMeter_Webstore_Large_003

Welcome to the SCADAmetrics Blog… the home of informal news and discussion pertaining to SCADAmetrics’ products and their use. This section of the website is new, so keep checking back in, as I hope to keep it updated with fresh and useful information.