Resistance thermometer for flush weld Pt100 temperature measurement

PTB

Resistance thermometer for flush weld temperature measurement with Pt100 or Pt1000 elements, -70°C...+300°C standard tip range, AA, A or B tolerance and stainless steel 1.4571 process-side materials

Introduction

Flush weld temperature points need a compact sensor design that measures directly at the process connection without compromising accuracy. PTB resistance thermometers use standardized platinum measuring elements for Pt100 temperature measurement, with Pt1000 and other elements available by request.
 
The sensing element is embedded in magnesium oxide inside the protective tube and hermetically sealed, supporting heat transfer and vibration protection. Standard measuring temperatures at the probe tip cover -70°C...+300°C, with high-temperature versions for +500°C/+600°C and low-temperature versions available by request.
 
Configuration options help adapt the sensor to the installation. The family includes 1x Pt100 in 2-, 3- or 4-wire circuits, tolerance classes AA, A and B according to IEC 60751, seamless stainless steel 1.4571 process-side materials, optional neck tube versions and connection options for terminal block, cable, valve plug or head transmitter.

Flush weld fit
Flush weld fit
Designed for G½" flush weld process connection with TEM-10 or TEM-11 options
Accurate Pt100 sensing
Accurate Pt100 sensing
Pt100 elements are available in AA, A or B tolerance classes according to IEC 60751.
Temperature choice
Temperature choice
Standard tip range is -70°C...+300°C, with +500°C/+600°C versions by request.
Robust process side
Robust process side
Protection tubes and process connections use stainless steel 1.4571.
Flexible connection
Flexible connection
Select terminal block, 1 m cable, valve plug or head transmitter connection.

Features

Platinum measuring element

The sensor uses a Pt100 platinum resistance element. Pt1000 and other measuring elements are available by request.

Sensor circuit options

The product family supports 1x Pt100 in 2-, 3- or 4-wire circuits. Double and triple Pt100 configurations are listed in the source material.

Flush weld process connection

The process connection is intended for G½" flush weld installation, including variants for TEM-10 or TEM-11 weld-in parts.

Neck tube versions

Versions are available without neck tube up to +85°C, with aligned stainless steel neck tube up to +200°C, or with a neck tube length by request.

Connection head options

Connection-side housing materials include aluminum, stainless steel, polypropylene PP and POM polyoxymethylene.

Head transmitter preparation

Connection variants are available for fixed-value 4...20mA or 0...10V transmitters, UTN-500 software programmable transmitters and PTN-600 PROFIBUS PA interface.

Measuring insert

The family includes permanently mounted and changeable measuring insert versions, depending on the selected neck tube and configuration.