The model TR22-A resistance thermometer is used for temperature measurement in sanitary applications. The process connections meet the stringent requirements, in terms of materials and design, of hygienic measuring points. For increased hygiene requirements for those elements in contact with the surrounding environment, a stainless steel head is available in an optimised hygienic design.Due to the rotatable screw connection to the connection head or the display, it is possible to loosen these components and to adjust them to the desired position. The connection head can be removed together with the measuring insert. This allows the resistance thermometer to be calibrated along with the whole measuring chain, i.e. without disconnecting the electrical connections. As this also avoids opening the process, the hygienic risk is drastically minimised.The spring-loaded measuring insert guarantees the contact between the sensor tip and the bottom of the thermowell and thus ensures a fast response time and high accuracy. The welded junction between the thermowell and the flange makes the use of a sealing as additional material in those areas redundant which are in contact with the product.

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Resistance thermometers of this series are designed for screw-fitting directly into the process, mainly in vessels and pipelines.These thermometers are suitable for liquid and gaseous media under moderate mechanical load and normal chemical conditions. The model TW35 thermowell is made of fully-welded stainless steel and screwed into the connection head. The interchangeable measuring insert can be removed without taking out the complete probe from the plant. This enables inspection, verification of the measuring chain and when servicing is necessary, replacement during operation and while the plant is running. The choice of standard lengths assists with the short delivery times and the possibility of stocking spare parts. Insertion length, process connection, thermowell design, connection head, type and number of sensors, accuracy and method of connection can each be selected to suit the respective application.

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Pressure range -0,25 … 0 bar up to -1 … 24 bar 0 … 0,25 bar up to 0 … 25 bar relative 0 … 0,25 bar up to 0 … 16 bar absolute other units available: PSI, mbar and othersNon-linearity 0.25% BFSLOutput signal 4…20 mA 0…10 V, 0…5 V and othersPressure connection * Clamp (Tri-Clamp, ISO 2852, DIN 32676) * Thread fitting (DIN 11851, SMS-Norm, IDF-Norm) * Aseptic threaded pipe connection per DIN 11 864-1 * Aseptic flanged connection per DIN 11 864-2 * Aseptic clamp connection per DIN 11 864-3 * Neumo BioConnect® * Neumo BioControl® * Varivent® * DRD

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This series of thermometers is designed for installation in pipes and tanks. Versions with and without thermowell offer many possibilities for temperature measurement in liquid and gaseous media.Use of the thermometers in potentially explosive atmospheres is possible without any Ex-specific marking in zones 1 and 2. (gases, ignition groups IIA, IIB, IIC)

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