- Temperature-Sensor Element
- Electric Vehicle Industry Temperature Sensors
- Traditional Industrial Temperature Sensors
- Pressure Transmitter
- Temperature Transmitter
- Temperature and Humidity Transmitter
- Automobile exhaust temperature sensors
- The medical industry temperature sensors
- Smart home temperature sensor
Screw-Mounted Assembly Thermocouple Temperature Sensor
Features
1. -280°C ~ +1820°C wide range with K/J/E/N/S/T/R/B thermocouple types;
2. Fully customizable probe diameter (2–20 mm), length (10–2000 mm), thread (M5–M20);
3. Explosion-proof / waterproof / abrasion-resistant options for harsh environments;
4. 316L stainless steel sheath for durability against chemical and mechanical stress;
5. Fast thermal response with small-diameter probe design;
6. Optional 4–20 mA transmitter for simplified long-distance signal transmission;
7.IEC 60584 compliant with Class I / Class II accuracy grade;
8.Easy screw-mount installation with plug-in terminal box, no special tools required;
Application
Screw-mounted assembly thermocouples are widely used in industrial furnaces, chemical & petrochemical plants, power generation, food & pharmaceutical processing, HVAC, semiconductor manufacturing, and automotive & aerospace testing. Explosion-proof and hygienic stainless steel options available for hazardous and sanitary environments.
Structures
Structures
The sensor assembly consists of the following key structural elements:
① Terminal Junction Box — houses the cold junction compensation circuit and provides IP65 or explosion-proof sealed connection;
② Threaded Mounting Fitting — M5–M20 process connection; enables direct installation into pipelines, vessels, or equipment walls;
③ Protection Tube (Sheath) — metallic tube (SUS304/316L/Inconel) protecting the sensing element from mechanical damage and process media;
④ Insulating Filler — high-purity MgO (magnesium oxide) powder filling ensures electrical insulation and effective thermal conduction to the sensing tip；
⑤ Thermocouple Sensing Element — two dissimilar metal wires (e.g., NiCr-NiSi for Type K) fused at the hot junction measuring point；
Product Types Choosing
Product Types Choosing
|
Parameter |
Options / Range |
|
Thermocouple Type (Division Number) |
K / J / N / E / S / T / R / B |
|
Accuracy Class |
Class I, Class II |
|
Temperature Range |
K: -200~1300 °C | J: -200~800 °C | S/R/B: up to 1820 °C (range specified on order) |
|
Wiring Method |
2-wire, 3-wire, 4-wire (thermocouple: no wiring type differentiation) |
|
Probe Diameter D (mm) |
2, 3, 4, 5, 6, 8, 10…20 or as specified |
|
Probe Length L (mm) |
10~2000 or as specified |
|
Thread Specification |
M5, M6, M8, M10, M12, M14, M20 or as specified |
|
Protection Grade |
Standard / Explosion-proof / Moisture-proof / Waterproof |
|
Output Signal |
Thermocouple mV signal / Optional: 4–20 mA (with transmitter) |
|
Sheath Material |
SUS304, SUS316L, Inconel 600 or as specified |
|
Connection Head |
With terminal box / With pull ring / With connector |
Installation and Use
Product Structure Diagram
