Overview

This section of the Maras catalogue details various types of thermocouples and temperature sensors, including their specifications, dimensions, materials, sensor types, maximum operating temperatures, and cable lengths. The catalogue also includes information on bayonet adaptors and assembly drawings.

1. Thermocouple Sensor Specifications

• Codes and Dimensions: Multiple sensor codes are listed with dimensions ranging from Ø1.0 mm to Ø8 mm and lengths from 50 mm to 200 mm.
• Cable Length: Standard cable length is 2000 mm for all sensors.
• Material: All sensors are made from AISI304 stainless steel, except one nozzle thermocouple made of brass.
• Sensor Types: Primarily FeCuNi/J type sensors, with some PT-100 sensors included.
• Maximum Temperature: Ranges from 300°C to 650°C depending on sensor type and application.

2. Sensor Types and Applications

• Standard Thermocouples: Codes GM.945050 to GM.9560100, dimensions Ø5-6 mm, max temp 300-400°C.
• Plug-in Thermocouples: Codes GM.94160 and GM.94180, dimensions Ø6-8 mm, max temp 400°C.
• Bayonet Thermocouples and Adaptors: Bayonet adaptors available with different wrench sizes (SW17) and thread types (R1/4", R3/8", M12x1).
• Clamp Thermocouples (Axial and Tang): Codes GM.9725 to GM.9770, dimensions Ø25-Ø90 mm, max temp 400°C.
• Under Nozzle Thermocouples: Codes GM.941050 to GM.9415200, very small diameters (Ø1.0-1.5 mm), max temp 650°C.
• Nozzle Thermocouple: Code GM.9404012, brass material, Ø4x12 mm, max temp 400°C.
• Manifold Thermocouple: Code GM.9404012, AISI304, M8x1/Ø6 mm, max temp 400°C.
• Screw-in Thermocouples: Mentioned but specific details not provided.

3. Materials and Construction

All sensors are constructed from AISI304 stainless steel, ensuring durability and corrosion resistance, except for the nozzle thermocouple which uses brass. The cables are uniformly 2000 mm in length, facilitating standard installation requirements.

4. Assembly and Mechanical Details

• Several assembly drawings are referenced, showing dimensions and mechanical details such as diameters, thread sizes, wrench sizes, and mounting configurations.
• Bayonet adaptors and clamp thermocouples include detailed mechanical specifications for proper installation.
• Weight and scale information is provided for assembly sheets, indicating precise manufacturing standards.

5. Critical Parameters and Recommendations

• Maximum operating temperatures vary by sensor type and application, with under nozzle thermocouples rated up to 650°C, while others are limited to 400°C or 300°C.
• Material choice (AISI304 vs brass) depends on application environment and temperature requirements.
• Standard cable length of 2000 mm should be considered for installation planning.
• Selection of sensor type (FeCuNi/J or PT-100) should align with measurement accuracy and temperature range needs.

Summary

The Maras catalogue section provides comprehensive technical data on a range of thermocouples and temperature sensors designed for industrial applications. It covers sensor dimensions, materials, sensor types, maximum temperatures, and mechanical assembly details. The information supports proper sensor selection, installation, and maintenance to ensure reliable temperature measurement up to 650°C.