Description
Overviews
Fixed thread thermal resistance wzp-220 assembled thermal resistance is usually used with display instrument, recording instrument and electronic computer. It can directly measure the surface temperature of liquid, vapor, gas medium and solid in the range of - 200 ~ 500 ℃. In addition, it has the advantages of simple assembly, convenient replacement, pressure spring type temperature sensing element, good anti vibration performance, large measurement range, high mechanical strength and good pressure resistance.
The assembled thermal resistance is mainly composed of junction box, protective tube, terminal block, insulating sleeve and temperature sensing element, and is equipped with various installation and fixing devices.
Specification
Technical index
Temperature range and accuracy
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Thermoelectric resistance category
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Measuring range ℃
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Dividing number
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Allowable deviation t ℃
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WZP platinum resistance
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-200 / 420
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Pt100
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Class B tolerance ±(0.3 or + 0.005 / t /)
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Class A tolerance ±(0.002 or + 0.002 / t /)
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|||
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WZC copper resistance
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-150 / 100
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Cu50
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-50 ≤ 100 ℃ tolerance ±(0.30 × 6.0 × 10 ~ (- 3) t)
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Fixed threaded thermal resistance
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Thermoelectric resistance category
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Product model
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Dividing number
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Measuring range ℃
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Protective pipe material
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Diameter dmm
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Thermal response time T0.5S
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Single platinum thermal resistance
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WZP-220
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Pt100
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-200 / 420
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Stainless steel
1Cr18Ni9Ti
Stainless steel
0Cr18Ni12Mo2Ti
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16
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≤ 90
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WZP-221
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12
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≤ 30
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||||
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WZP-230
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16
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≤ 90
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||||
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WZP-231
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12
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≤ 30
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||||
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Double platinum thermal resistance
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WZP2-220
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16
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≤ 90
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|||
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WZP2-221
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12
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≤ 45
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||||
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WZP2-230
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16
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≤ 90
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||||
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WZP2-231
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12
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≤ 45
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||||
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Single platinum thermal resistance
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WZP-221A
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Stainless steel
1Cr18Ni9Ti
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16
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≤ 90
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||
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Double platinum thermal resistance
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WZP2-221 A
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≤ 90
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||||
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Copper thermal resistance
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WZC-220
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Cu50
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-50 / 100
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Brass H62
Stainless steel
1Cr18Ni9Ti
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12
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≤ 120
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WZC-230
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||||||
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WZC-220A
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Note:1. Nominal pressure: 10MPa
2. Models 220 and 221 are splash-proof junction boxes, and models 230 and 231 are waterproof junction boxes.
