Mettler Toledo, Inc.
Columbus, OH 43240
Dec 11, 2008 Inductive conductivity sensor, InPro7250 features hermetically sealed calculation system and safeguard for maintaining stable conductivity for difficult-to-measure developments in pulp and paper processes and industrial waste water. Sensor is inert to strong mineral acids, inorganic bases, inorganic oxidizing agents and salt solutions.

Dwyer Instruments, Inc.
Michigan City, IN 46361 0373
Aug 28, 2008 Mounted in any orientation in tank, tee fitting, or any compatible threaded port, Series CLP determines presence of conductive liquid at set level by sensing conductivity. Probes allow for measurement of conductivity between probe fitting and end, which is isolated by ceramic insulator, or between ends of 2 probes. Offered with ½ in. NPT process connection, probes feature solid stainless steel end for resistance to heat and corrosion.

Motor Protection Electronics, Inc.
Apopka, FL 32703
Jun 18, 2008 Available in 1-, 3-, and 10-point versions with 50 or 100 ft cable lengths, The Level Probe features blue and white PVC body with Avesta 254 Stainless Steel Sensors. Outer jacket of cable is PVC, and each individual conductor jacket is also PVC. Conductor wire is 18 AWG, tinned copper, with each conductor identified by number that corresponds to sensor position on probe. All 10-point probes are available with spacings between stainless steel sensors of 5, 6, 8, 10, and 12 in.

Emerson Process Management / Process Liquid Division / Uniloc Division
Irvine, CA 92606
Dec 10, 2007 Compatible with Model 1056 Intelligent Analyzer, Model 410VP PUR-Sense 4-electrode sensor provides linearity between 0.1 µSiemen/cm to 600 mSiemen/cm. Alternating current is injected through outer electrodes while analyzer measures voltage across inner electrodes. Integrated Pt1000 RTD makes contact with process liquid through SS capsule flush with sensing face. Sanitary connections include 1.5 in. tri-clamp, 2 in. tri-clamp, Ingold G1-¼, or Varivent® Process Connection.

Invensys Systems, Inc.
Foxboro, MA 02035
May 23, 2007 Designed for high-purity measurement in low volume liquid applications, FT10 Model sensors measure conductivity ranging from 0-2000 mS/cm utilizing multi-toroid design. FT10s come equipped with virgin PFA Teflon-wetted materials and leak-free weld connections that eliminate need for internal threads, o-rings, and gasket seals. Sensors are available with Teflon tubes of ½, ¾ and 1 in. and can handle temperatures up to 140°F and pressures up to 100 psig.

Invensys Systems, Inc.
Foxboro, MA 02035
May 11, 2007 Suited for low volume applications, non-invasive FT10 Electrodeless Sensor is equipped with virgin PFA Teflon-wetted materials and leak-free weld connections. It is available with Teflon tube sizes of ½, ¾, or 1 in. and can measure process fluids with temperatures up to 284°F and pressures to 100 psig. Measuring 7 x 5 x 2 in., sensor is constructed of ultra high molecular weight polyethylene with flow-through design, and measures conductivity from 0-2,000 mS/cm.

SciLog, Inc.
Middleton, WI 53562
Apr 04, 2007 Temperature, pressure, and conductivity sensors feature embedded memory for storing data such as calibrations, IDs, and lot numbers, which can then be downloaded into spreadsheet or printed. Sensors can be used once and then disposed of, or they can be sanitized with NaOH or be sterilized by autoclaving, ETO, or gamma. Along with barcode traceability, in-line sensors also enable setting high/low alarms and include 4 TTL alarm outputs.

Emerson Process Management / Process Liquid Division / Uniloc Division
Irvine, CA 92606
Mar 28, 2006 Rosemount Analytical Model 225-08 toroidal conductivity sensor comprises of pair of wire-wound metal toroids overmolded with special grade of PEEK. It can be integrated into DeltaV digital automation system that powers PlantWeb® digital plant architecture. Sensor offers conductivity range from 200 µS/cm to 2 S/cm and incorporates integral temperature sensor for temperature compensation. It is suited for applications such as concentrations of acids, alkalis, and rinse waters.

Mettler-Toledo Ingold
Bedford, MA 01730
Sep 28, 2005 Constructed with chemical resistant PEEK body material and utilizing inductive sensor technology that is not affected by coatings, InPro 7200 is suited for applications in chemical, petrochemical, pulp and paper, pharmaceutical, and food and beverage markets. Unit features pressure rating up to 290 psig and linear response over 6 decades down to 1 µS/cm.

Emerson Process Management / Process Liquid Division / Uniloc Division
Irvine, CA 92606
Feb 14, 2005 Model 225-08 toroidal conductivity sensor consists of pair of wire-wound metal toroids overmolded with U.S.P. Class VI PEEK material. Suited for use in concentrations of acids, alkalis, and rinse waters, product incorporates integral temperature sensor for temperature compensation and has conductivity range from 200 µS/cm to 2 S/cm. Sensor meets requirements of clean-in-place (CIP) liquid analysis for pharmaceutical industry.

Walchem Corp.
Holliston, MA 01746 1460
Oct 13, 2004 Compatible with proprietary WGI controller, PEEK electrodeless conductivity sensors offer built-in signal conditioning and 4 ranges of conductivity: 0.1–1, 1–10, 10–100, and 100–1,000 mS/cm. All sensors are rated to 190°F and come with 1 in. NPTM threads for submersion mounting. Applications include alkaline cleaner solutions and oily chemical solutions. Rated to 158°F, 0.1–1 mS/cm version of CPVC electrodeless conductivity sensor is also available.

MKS, HPS Products
Boulder, CO 80301
Apr 29, 2004 Series 925C MicroPirani® Transducer is a thermal conductivity gauge with pressure measurement range from 10^-5 Torr to atmosphere. Sensor element consists of 1 mm² silicon chip, allowing measurements to be made in very small volume. MEMs-based tranducer includes RS485 or RS232 digital communications, allowing for adjustments and monitoring to be delivered in real-time via host computer. Common gas calibrations can be selected via digital interface.

Emerson Process Management, Intellution Division
St. Louis, MO 63136 8506
Mar 30, 2004 Suited for use in pharmaceutical and biochemical industries, Model 245 flow-through toroidal conductivity sensor handles flowing samples that may be viscous, fibrous, or corrosive. Sensor design consists of one pair of wire-wound toroids, completely isolated from process. Available in 4 line sizes from ½â€“2 in., sensor is manufactured with FDA-compliant wetted materials, including 316L Stainless Steel, EP, and unfilled-PEEK.

Emerson Process Management
Knoxville, TN 37932
Mar 26, 2004 Rosemount Analytical Model 245 flow-through toroidal conductivity sensor works with viscous, fibrous, and corrosive samples. Sensor design consists of one pair of isolated, wire-wound toroids, enabling unit to withstand harsh environments of pharmaceutical, biochemical, and food and beverage processing. Available in 4 line sizes from ½â€“2 in., sensor is manufactured with 316L Stainless Steel, EP, and unfilled-PEEK and meets 3-A sanitary standards.

Georg Fischer Piping Systems
Tustin, CA 92780
Mar 27, 2003 Series 2850 Sensors provide 2-wire, 4-20 mA output or S³L digital interface for conductivity/resistivity measurements without local display. Eight 4-20 mA output ranges, plus ability to invert each range, are selectable by user in the field. With S³L digital interface, conductivity and temperature measurement data are available over single set of wires. Sensors include automatic electrode cell constant recognition and automatic temperature compensation.

Mettler-Toledo Process Analytics
Bedford, MA 01730
Jan 30, 2003 InPro® 7000-VP Sensors have 2 electrodes for low-conductivity ranges and InPro® 7100 Sensors have 4 electrodes for medium- to high-conductivity ranges. All feature watertight VarioPin (VP) cable connection that assures reliable signal transmission even under wetted conditions. Process connections include NPT, 1 ½ and 2 in. Tri-Clamp, and 13.5 and 25 mm fittings. Hygienic designs are available for CIP and SIP applications.

Emerson Process Management, Intellution Division
St. Louis, MO 63136 8506
Oct 24, 2002 Designed for applications in cooling towers and metal plating, Model 247’s body is constructed of solvent-bonded chlorinated polyvinyl chloride (CPVC). Sensor withstands process temperatures to 165°F and pressures to 100 psig. It can be mounted using customized 2 in. CPVC flow tee, or it can be submersed into process after cementing PVC or CPVC 1 in. slip fitting onto its back end.

Emerson Process Management
Knoxville, TN 37932
Oct 09, 2002 Model 242 flow-through toroidal conductivity sensor is suitable for use in viscous, abrasive, and fibrous solutions. It offers pipeline sizes of 1 through 4 in., as well as 25 through 100 mm. Liners are available in Teflon, glass-filled Polyetheretherketone (PEEK) and, upon request, alumina. All wetted parts can be replaced. Conductivity measurement range is from 100 microSiemen up to 2 Siemen per cm. Included junction box protects internal wiring.

Meriam Instrument
Cleveland, OH 44102
Sep 17, 2002 Model RTD1000 measures resistance of RTD sensor types including platinum, copper, nickel, and iron materials with nominal resistances to 1000 ohms. Designed for use with hand-held MFT 4000 Series Multi-Function Tester, it may connect with 2, 3, or 4-wire RTDs via accessory connectors. Menu feature on MFT selects RTD type, nominal resistance, and alpha value. General-purpose connector with alligator clip terminations provides for temporary connections to installed RTDs.

GLI International, Inc.
Milwaukee, WI 53224
Apr 09, 2002 Model 3700E-Series eliminates polarization and electrode coating problems that commonly affect contacting, electrode-type conductivity sensors. Only one wetted material contacts process media. Body materials are polypropylene, PVDF, PEEK(R), or PFA Teflon(R). Sensors are available in convertible or sanitary mounting styles. They can measure solutions with conductivity as high as 2,000,000 microSiemens/cm and temperature range between 0 and 200 deg C.