SCADA & Process Control

Nov. 1, 2009
The Model ML04 Water Specialties Propeller Flow Meter™ from McCrometer is available with an optional transmitter ...
Propeller flow meter

The Model ML04 Water Specialties Propeller Flow Meter™ from McCrometer is available with an optional transmitter that provides a 4-20 mA output, which indicates either flow rate or totalized flow volume in support of Supervisory Control and Data Acquisition (SCADA) Systems. The steel flanged-end tube meter has an indicator-totalizer. It features measurement accuracy of ±2 percent, and can be used to measure liquid flow from 40 to 35,000 gpm, depending on line size. The meter is suitable for service in line sizes from 2” to 48” and is designed for temperatures up to 140°F. McCrometer, Hemet, CA, 800-220-2279,

Digital flow meter

The Badger Meter Model 3000 is a full-featured digital flow monitor with a NEMA 4X rated front panel. It conforms to DIN Standard dimensions, 96 mm by 96 mm, for meter sizes and panel cutouts, and a version is also available in a NEMA 4 wall mount configuration. Programming the unit is flexible and menu-driven. All data is entered using the LCD keypad interface. A password gate is included to prevent unauthorized access. The monitor provides two pulse outputs to interface with external data collection devices that accept electronic pulses. Badger Meter, Milwaukee, WI, 800-656-3837,

Gas flow monitoring

The GF90 Mass Flow Meter from Fluid Components International offers improved performance in gas measurement applications, such as chlorinated water disinfection systems, with less maintenance, and lower installation and operating costs. The mass gas flow meter is inserted in chlorine gas process piping, and its 4-20 mA output wired to the input/output (I/O) modules in an automation system. The automation system then continuously measures and controls the amount of chlorine to be dispensed for optimum water purity. Fluid Components International, San Marcos, CA, 800-854-1993,

Portable pH recorder

Analytical Measurements offers a full line of industrial pH and ORP (Redox) instrumentation as well as replacement probes/sensors. The Model 30 combines a pH meter (or ORP) with a strip chart recorder in a compact NEMA enclosure. The monitor can be installed permanently on the wall or used as a portable field instrument. These units are commonly used in municipal wastewater treatment plants to monitor and record pH and/or ORP. Analytical Measurements, Hillside, NJ, 800-635-5580,


The LF-500 from Spectral Evolution offers a 320-1100 nm range in a fiber optic input UV-VIS NIR spectrometer. The fiber input provides a variety of sample interfacing configurations. Optical system-matched fiber optics provides optimal signal to noise ratio. The instrument offers a variety of elements and an Si photodiode array for a range of spectral resolution options. On board calibration, storage, shutter/dark scan, and automatic exposure allow for minimal user configuration. Spectral Evolution, North Andover, MA, 978-687-1833,

Flow meters

GF Piping Systems’ Signet 8550 Meters convert the signal from a Signet flow sensor into a 4-20 mA signal for long distance transmission. Features include single or dual input/output, two optional relays for process control, and scalability for virtually any flow range or engineering unit. Suitable applications include flow control and monitoring, water and wastewater, chemicals, filtration or softeners, regeneration, and leak detection. The meters are available in three packaging options: integral/pipe, universal field mount or panel installation. Performance characteristics include an operating temperature of 14ºF to 158ºF, state-of-the-art electronic design for long-term reliability, signal stability, and simple user setup and operation. GF Piping Systems, Tustin, CA, 800-854-4090,

Pressure sensor

Red Valve’s new Series 45 Pressure Sensor with digital instrumentation is designed specifically for tank level control and indication. The remote digital readout lends itself to easy installation in flange outlets on storage tanks. The instrumentation allows operators to remotely control pumps while filling tanks fully without spillage, increasing the total storage holding capacity of a tank or series of tanks. The sensors are now available in 2” through 12” flange mounting. Red Valve Co. Inc., Carnegie, PA, 412-279-0044,

Ortho-phosphorous analyzer

ASA Analytics has introduced a new line of low cost automatic optical process analyzers, including an ortho-Phosphorous analyzer. The new line of ChemScan® mini™ analyzers has been designed to automatically analyze a single parameter, which significantly reduces costs. The ortho-Phosphorous Analyzer is designed specifically for rapid and automatic batch analysis of ortho-Phosphorous in low solids wastewater effluent or potable water samples through a detection cell. ASA Analytics, Waukesha, WI, 800-665-7133,


The new Hach 2100Q portable turbidimeter offers advanced features such as on-screen
assisted calibration and verification, simplified data transfer, and improved measurement for rapidly settling samples. The device makes it easier to monitor water cleanliness and clarity, to test product quality and consistency, and to meet turbidity regulations where grab samples are used. Single-standard RapidCal™ calibration offers the simplest solution for low-level measurements. Single-step verification and on-screen assisted calibration eliminates the need to reference complicated manuals. Hach Co., Loveland, CO, 800-227-4224,

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