26 - 28 September 2017 // Nuremberg, Germany

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Zoom product LOGO_Miniature resistance thermometer For sanitary applications Model TR21-A, with flange connection

Miniature resistance thermometer For sanitary applications Model TR21-A, with flange connection

LOGO_Miniature resistance thermometer For sanitary applications Model TR21-A, with flange connection

Miniature resistance thermometer For sanitary applications Model TR21-A, with flange connection

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  • Sanitary applications
  • Food and beverage industry
  • Bio and pharmaceutical industry, production of active ingredients

Special features

  • Sensor can be calibrated without having to open the process
  • Compact design for space-saving fitting
  • Simple and fast connection using an M12 plug connector
  • With direct sensor output (Pt100/Pt1000 in 3 or 4-wire version) or integrated transmitter with 4 ... 20 mA output signal, individually parameterisable with free-of-charge WIKAsoft-TT PC configuration software
  • Materials and surface finish quality in accordance with standards of hygienic designs


The model TR21-A resistance thermometer provides temperature measurement in sanitary applications and can be used for the measurement of liquid and gaseous media in the range of -50 ... +250 °C. These thermometers are fitted with thermowells, whose process connections meet the stringent requirements, in terms of materials and design, of hygienic measuring points. All electrical components are protected against moisture (IP 67 or IP 69K).

The resistance thermometer is available with direct sensor output or integrated transmitter, which can be configured individually via the PC configuration software WIKAsoft-TT. Measuring range, damping, fault signal per NAMUR NE43 and TAG no. can be adjusted.

For easy calibration or maintenance, the sensor is removable without having to break into the process or disconnect the electrical connection. Thus hygiene risks can be minimised and downtimes can be reduced.

The spring-loading, integrated into the union nut, guarantees the contact between the sensor tip and the bottom of the thermowell and thus ensures a short response time and lasting high accuracy.

Due to the high quality and robust all-metal design of the TR21-A sensor the high ingress protection IP 69k is ensured, which even resists the harsh process conditions (134 ° C, 3 bar saturated vapor pressure) in an autoclave.

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.

Insertion length, process connection, sensor and connection method can each be selected for the respective application within the order information. The electrical connection is made via an M12 x 1 circular connector. An adapter for electrical connection with angular connector per DIN EN 175301-803 form A is optionally available (patent, property right registered under No. 001370985).

Compact pressure gauge with dry measuring cell for sanitary applications

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Miniature resistance thermometer For sanitary applications Model TR21-B, for orbital welding

LOGO_Miniatur-Widerstandsthermometer Für die sterile Verfahrenstechnik Typ TR21-B, zum Orbital-Einschweißen

Resistance thermometer For sanitary applications Model TR22-A, with flange connection

LOGO_Widerstandsthermometer Für die sterile Verfahrenstechnik Typ TR22-A, mit Flanschanschluss

Universal process transmitter: Robust and highly accurate

LOGO_Universeller Prozesstransmitter: Robust und hochgenau

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