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Fixed threaded joint thermocouple
- Product Description
-
Fixed threaded joint thermocouple
1. Application:
Usually used in conjunction with display instruments, recorders, electronic computing, etc. Directly measures the temperature of liquids, steam, and gas media, as well as solid surfaces, within the 0°C~1300°C range in various production processes.
2. Features
· Simple assembly, easy replacement
· Spring-type temperature sensing elements with good vibration resistance;
· Large temperature measurement
range · High mechanical strength and good
voltage resistance 3. Working Principle The
electrode of a thermocouple consists of two conductors made of different materials. When there is a temperature difference between the measuring and reference terminals, a thermoelectric potential is generated, and the working instrument displays the temperature value corresponding to the thermoelectric potential.
4. Main Technical Parameters
Product Standards
IEC584
IEC1515
GB/T16839-1997
JB/T5582-91
5. Room temperature insulation resistance: The
thermocouple operates at ambient temperatures of 20±15°C, with relative humidity not exceeding 80%. The test voltage is 500±50V (DC). The insulation resistance between the electrode and the outer sleeve is >1000Ω·m.
6. Measurement range and toleranceModel Degree number Allowing for a different grade I II Fair and accurate value Temperature measurement range is °C Fair and accurate value Temperature measurement range is °C WRN K ±1.5°C -40~+375 ±2.5 °C -40~+333 ±0.004ltl 375~1000 ±0.0075 ltl 333~1200 WRM N ±1.5°C -40~+375 ±2.5°C -40~+333 ±0.004 ltl 375~1000 ±0.0075 ltl 333~1200 WRE E ±1.5°C -40~+375 ±1.5°C -40~+333 ±0.004 ltl 375~800 ±0.004 ltl 333~900 WRF J ±1.5°C -40~+375 ±1.5°C -40~+333 ±0.004 ltl 375~750 ±0.004 ltl 333~750 WRC T ±1.5°C -40~+125 ±1°C -40~+133 ±0.004 ltl 125~350 ±0.0075 ltl 133~350 7. Waterproof type: Thermocouple type selection with fixed threaded connectors
Product models Degree number Temperature range: °C Junction box type Protective tube materials Specifications (mm) d L WRM-83 WRM2-83
N 0-1000 M20x1.5 1Cr18Ni9Ti φ3 φ
φ5
φ6
φ8
245 270
295
345
395
445
545
645
745
899
1149
WRN-83A WRN2-83A
NPT1/2 WRN-83 WRN2-83
K M20x1.5 WRN-83A WRN2-83A
NPT1/2 WRE-83 WRE2-83
E 0-700 M20x1.5 WRE-83A WRE2-83A
NPT1/2 WRC-83 WRC2-83
T 0-350 M20x1.5 WRC-83A WRC2-83A
NPT1/2 WRF-83 WRF2-83
J 0-600 M20x1.5 WRF-83A WRF2-83A
NPT1/2 1) Models 82 and 82A are spray-proof with protection rating IP65;
2) Models 83 and 83A are waterproof with IP65 protection rating;
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