InPro 7250HT PEEK Conductivity Sensor

Mettler Toledo Process Analytics electrodeless sensor for aggressive chemicals

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For medium and high conductivity measurements in hazardous areas.

The InPro 7250HT electrodeless sensor made of PEEK is highly resistant to aggressive chemicals and suitable for applications in hazardous areas. The sensors wide temperature range from -20 to 180°C (-4...356 °F) and its technical specifications allow the sensor to be used for the majority of all electrodeless conductivity applications. Typical applications can be found in the chemical process and pulp & paper industries. A variety of available process adapters allow simple installation into almost every type of process.

Features and Benefits

Suitable for a wide range of applications

Made of chemically resistant PEEK (polyetheretherketone), this sensor shows no polarization, is insensitive to contamination, fouling or film formation on the sensor surface, extreme robust, easy to install, has a wide temperature range and approval for usage in hazardous areas.


Highest measurement accuracy

With a resolution of 1 μS/cm, a large dynamic range and an excellent linearity the InPro 7250 HT is the perfect choice also for applications at low conductivity values under harsh conditions.


Compatible with METTLER TOLEDO's "Advanced and Premium Line"transmitters

METTLER TOLEDO transmitters offer a variety of advantages and benefits providing highest reliability, easy operation and advanced diagnostics. Amongst others, advanced software allows concentrations of a wide range of acids and caustic solutions to be displayed.
Cell factor2.175
Accuracy± (0.5 % of measured value + 1 μS)
Measurement range0...2000 mS/cm
Temperature range-20 to 180 °C (-4 to 356 °F)
Max. pressure (bar)20 bar
Max. pressure (psi)290 psi
Sensor materialPEEK, glass-fiber reinforced (GF30)
O-rings, insulationViton®
Temperature sensorPt1000
FM approvalIS/I, II, III/1/ABCDEFG/T6
ATEX Certification  II 1/2G Ex ia IIC T6/T5/T4/T3 Ga/Gb
IECEx Certificate of ConformityEx ia IIC T6/T5/T4/T3 Ga/Gb
ApplicationChemical processes with higher
temperature requirements
Material Number(s)52 002 739 (3m cable length)

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