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Movable threaded pipe-connected thermocouple
- Product Description
-
Movable threaded pipe-connected 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 > 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 11. Waterproof movable threaded pipe-connected thermocouple selection table
Product models Degree number Temperature range: °C Junction box type Protective tube materials Specifications (mm) d L WRM-93 WRM2-93
N 0-1000 M20x1.5 1Cr18Ni9Ti φ3 φ4
φ5
φ6
φ8
245 270
295
345
395
445
545
645
745
899
1149
WRN-93A WRN2-93A
NPT1/2 WRN-93 WRN2-93
K M20x1.5 WRN-93A WRN2-93A
NPT1/2 WRE-93 WRE2-93
E 0-700 M20x1.5 WRE-93A WRE2-93A
NPT1/2 WRC-93 WRC2-93
T 0-350 M20x1.5 WRC-93A WRC2-93A
NPT1/2 WRF-93 WRF2-93
J 0-600 M20x1.5 WRF-93A WRF2-93A
NPT1/2 12. Installation method
1) Models 92 and 92A are blowout protection, with protection rating IP65;
2) Models 93 and 93A are waterproof with IP65 protection rating;
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