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Help CenterK Type Thermocouple for Temperature Instrument
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Specifications
1.Easy assembly and convenient for replacement2.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
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