Fortrans Inc.    Wendell, NC 27591
Sep 20, 2011 Able to treat up to 2,700 gph of process water, Model 5000SP uses safe CO2 gas to lower pH and can be equipped with peristaltic chemical feed pump to inject alkaline solutions to raise pH. Design uses owner-furnished tanks, basins, lagoons, or sumps and does not require mixer in treatment tank. Depending on water quality required prior to discharge, onboard cartridge filter may be used with or without 3 micron filter cartridge. This 39 x 24 x 39 in. system suits mobile/fixed operations.

Fortrans Inc.    Wendell, NC 27591
Feb 28, 2011 Poli-Cut pH control system lowers pH of process water produced in concrete polishing, grinding, and cutting operations so that water can be safely discharged without polluting environment. Self-contained, automated machine utilizes CO₂ gas that is diffused and injected into wastewater to lower pH to 7.0. Mounted on 5 in. polyurethane swivel casters, product has 200 gal tank with 2 in. bottom drain; 2-speed pump, and is able to treat 1,500-3,000 gph.

Walchem Corp.    Holliston, MA 01746 1460
Feb 23, 2009 Accepting 2 electrode signals in any combination of pH and ORP, WDP400 Series dual input pH/ORP controllers suit industrial, commercial, and municipal water treatment applications. There are 4 control outputs, available as on/off control relays, or as pulse proportional outputs to directly drive electronic metering pumps. Each control output can be assigned to either electrode, and relays can be either high or low set point, high or low alarm, in range alarm, out of range alarm, or probe wash.

Norcross Corp.    Newton, MA 02458 1829
Sep 07, 2007 Norcross MP2000 Viscosity Controller has 60 settings to accommodate solvent- or water-based products. It provides level, field-selectable on/off, or proportion control as well as password protected programming. Capable of displaying in piston time-of-fall seconds, Zahn or Shell Cup seconds, or centipoises, single-loop controller can be recalibrated while operating. It also features sealed keypad NEMA-4X enclosure and high- and low-viscosity alarm outputs.

Omega Engineering, Inc.    Stamford, CT 06907
Jul 29, 2005 Manufactured in NEMA 4X polycarbonate enclosure, PHUCN600 and PHUTX600 Series measure pH, ORP, or conductivity. Multi-parameter, microprocessor-based controller, PHUCN600, has LED numeric display with bar graph on outside front panel and 2-line, 16-character LCD on inside. User menu is divided into Calibration, Utilities, Setup, Diagnostics, and Output categories. As 1/4 DIN, 2-wire transmitter, PHUTX600 comes with universal mounting kit for stand-alone operation.

Walchem Corp.    Holliston, MA 01746 1460
Feb 11, 2004 Series W305 pH/ORP controllers support 1 or 2 sensors in any combination of pH or ORP. Digital inputs for each sensor input channel prevent control based on stagnant samples or empty tanks, while control output limit timers prevent runaway chemical addition. Rated NEMA 4X, ½ DIN controllers offer optional calibration reminder, automatic probe wash, and automatic buffer recognition. They have 5 standard relays and support variety of control and alarming modes.

Walchem Corp.    Holliston, MA 01746 1460
Mar 31, 2003 WebMaster® GI General Industrial Controller combines pH/ORP and conductivity products with WebMaster® communications platform. ShoulderTap® Server-On-Demand technology allows real-time access to system parameters. Controller delivers e-mail notifications for alarms and system summaries. It offers 4 sensor inputs, 8 analog inputs, 9 digital inputs, 4 analog outputs, and 8 relays. Set-Point, Time-Based Proportional, Flow-Based, and Timer algorithms are available.

Walchem Corp.    Holliston, MA 01746 1460
Oct 07, 2002 Offered in prewired NEMA 4X wall mount package, WDP Series controllers accept 2 electrode signals in any combination of pH and ORP. Their 4 control outputs may be used as on/off control relays or pulse proportional outputs. Each control output can be assigned to either electrode, and relays can be either high or low set point, high or low alarm, in-range or out-of-range alarm, or probe wash. Differential measurement technique is immune to ground loop problems.

GLI International, Inc.    Milwaukee, WI 53224
Dec 27, 2001 Family consists of Series 63, with true predictive and reactive diagnostics; Series 53, full-featured analyzer; and panel-mounted Series 33, designed for OEMs. All versions accept differential sensors, conventional electrode pairs, and combination electrodes. Series 63 and 53 simultaneously display pH and process temperature on backlit LCDs. Options include multiple analog outputs, relays, and multi-language operation.