Wika miniature resistance thermometer TR21-B

Wika miniature resistance thermometer TR21-B

applications

sterile process engineering

food and beverage industry

bio- and pharmaceutical industry, active ingredient production

performance features

Sensor can be calibrated without having to open the process

Electrical connection easy and quick via M12 x 1 connector

With direct sensor output (Pt100/Pt1000 in 3- or 4-wire connection) or integrated transmitter with output signal 4 ... 20 mA, individually parameterizable with free PC configuration software WIKAsoft-TT

Wetted parts made of CrNi steel 1.4435

Self-draining and minimal dead space, materials and surface qualities according to hygienic design standards

Description of Wika miniature resistance thermometer TR21-B

The resistance thermometer type TR21-B is used for temperature measurement in sterile process engineering and can be used to measure liquid and gaseous media in the range -30 ... +150 °C [-22 ... +302 °F]. Intrinsically safe versions are available for use in potentially explosive areas.

The connection ends are smooth and prepared for orbital welding. The process connections meet the high requirements for a hygienic measuring point in terms of material and design. All electrical components are protected against moisture (IP67 or IP69K).

The resistance thermometer is available with a direct sensor output or an integrated transmitter, which can be individually parameterized using the WIKAsoft-TT PC configuration software. The measuring range, damping, error signaling according to NAMUR NE 043 and tag number are adjustable.

For easy calibration or maintenance, the sensor is replaceable without having to open the process. This minimizes hygiene risks and reduces downtime.

The spring integrated in the union nut ensures contact between the sensor tip and the protective tube base, thus guaranteeing a short response time and consistently high accuracy. Installation length, process connection, sensor and circuit type can be selected for the respective application in accordance with the ordering information. Electrical contact is made using a circular connector M12 x 1.

For applications that require sterilization of the device in an autoclave, a special temperature-resistant device version is available.