Stick-in safety thermocouple probe, head connection

TC293

Thermocouple sensor for exhaust gas and air, with 2 x J, K or N isolated thermocouples for STL50 safety limiters, SIL 2/DIN EN 14597, ATEX Ex-ia IIC T6, 25 bar process pressure and IP65 aluminum head.

Introduction

Harsh gas-temperature points need a sensor that reacts quickly and fits safety-related systems without adding uncertainty. This safety thermocouple sensor measures exhaust gas and air and is certified as a sensor for STL50 safety temperature limiters in gaseous media, according to SIL 2 (DIN EN 61508) and DIN EN 14597.
 
The double-thermocouple design uses 2 x isolated thermocouples in type J, K or N, allowing the sensor to match different temperature requirements up to the maximum operating temperature of the selected thermocouple. A typical T63.2% step-response time of 20 s in exhaust gas and 22 s in air supports responsive temperature monitoring.
 
Designed for demanding process installation, the sensor combines a 25 bar process pressure rating with an Inconel 600 protection tube reduced from 9 mm to 3 mm. The BSZ aluminum terminal head with snap-lid provides ingress protection (IP) IP65, while the slide-able G ½ B clamping sleeve supports flexible installation lengths.

Safety certified
Safety certified
Supports STL50 safety limiters for gaseous media, with DIN EN 14597 certification.
Ex-area ready
Ex-area ready
ATEX Ex-ia IIC T6 certification supports use in explosive atmospheres.
Fast gas response
Fast gas response
Typical T63.2% response is 20 s in exhaust gas and 22 s in air.
Robust process fit
Robust process fit
25 bar process pressure, Inconel 600 tube and IP65 aluminum head suit demanding installations.

Features

Double thermocouple design

The sensor uses 2 x isolated thermocouples and can be ordered with type J, K or N elements.

Thermocouple options

Type J covers -100..+600 °C, while type K and type N cover -100..+800 °C.

Protection tube geometry

The protection tube is made from Inconel 600 W-No. 2.4816 and is reduced from 9 mm to 3 mm diameter.

Installation lengths

Standard installation lengths are 100 mm, 160 mm, 250 mm, 400 mm and 600 mm, with custom length on request.

Process connection

The process connection uses a slide-able G ½ B clamping sleeve.

Terminal head

The BSZ aluminum terminal head includes a snap-lid and temperature equalization.