Specifications

1.Easy assembly and convenient for replacement
2.High mechanical strength and good pressure-resistant performance

Assembly type thermocouples

Application                                    
As sensor for temperature measuring and regulation, assembly thermocouples is usually connected with display meter and other meters to directly measure temperature of liquid, vapor, gas and solid surface ranging from -40°C to 1800°C.

Features                              
1.Easy assembly and convenient for replacement.
2.Spring thermal element with good shock-proof performance.
3.Wide measuring range.
4. High mechanical strength and good pressure-resistant performance.

Principle                                            
Thermocouple is based on physical phenomenon that two conductor of different materials is connected to form return circuit, when temperature on both contact is different, it results in thermoelectric potential in return circuit.
Assembly thermocouple is usually composed with temperature sensing element, Mounting & Fixing device and Junction Box.

 

Main technical parameter                                       
Measuring range and Tolerance 

Type	Graduation	Measuring range °C	Tolerance class
			ClassⅠ	Class Ⅱ
NiCr-NiSi	K	-40~850	±1.5°C or ±0.4%t	±2.5°C or ±0.75%t
		Simplex -40~1200 Duplex  -40~1000
Nicr-Konstantan	E	Simplex -40~650 Duplex  -40~550
PtRh10-Pt	S	0~1600		±1.5°C or ±0.25%t
PtRh30-PtRh6	B	0~1800	Class Ⅲ ±3°C or ±0. 5%t

 

Thermal response time 

Protection tube diameter (mm)	Protevtive tube material	Thermal response timeτ(0.5)S
Φ16	high Al content tube/ corundum tube	≤240
	metal tube	≤180
Φ20	metal tube	≤240
Φ25	high Al content tube/ corundum tube	≤300
tapered protection tube	metal tube

 

 Normal temperature insulation resistance

Length	Normal temperature insulation resistance	Testing voltage
L≤1m	≥100MΩ	500±50V DC
L>1m	≥100 MΩ.m/L

 

Remark: Please identify the following items when ordering:
1. Shutter support Specification
2. Single-ouch or double-ouch
3. Lead Wire Length
4. Lead Wire Material
5. Protection material
6. Protection length
7. Stainless steel armor tube material
8. Stainless steel armor tube length
9. Spring material, ID, OD and length