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وصف
Overview
Wzp-120 assembled thermistor without fixed device 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, protection tube, terminal, insulation sleeve and temperature sensing element, and is equipped with various installation and fixing devices.
Specification
Technical index
Temperature range and accuracy
|
Thermoelectric resistance category |
Measuring range ℃ |
Dividing number |
Allowable deviation t ℃ |
|
WZP platinum resistance |
-200～420 |
Pt100 |
Class B tolerance ±(0.3 or + 0.005 / t /) |
|
Class A tolerance ±(0.002 or + 0.002 / t /) |
|||
|
WZC copper resistance |
-150～100 |
Cu50 |
-50 ≤ 100 ℃ tolerance ±(0.30 × 6.0 × 10 ~ (- 3) t)） |
Thermoelectric resistance selection
No fixed mounting thermal resistance
|
Thermoelectric resistance category
|
Product model
|
Dividing number
|
Measuring range ℃
|
Protective pipe material
|
Diameter dmm
|
Thermal response time T0.5S
|
|
Single platinum thermal resistance
|
WZP-120
|
Pt100
|
-200 / 420
|
Stainless steel
1Cr18Ni9Ti
Stainless steel
0Cr18Ni12Mo2Ti
|
16
|
≤ 90
|
|
WZP-121
|
12
|
≤ 30
|
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|
WZP-130
|
16
|
≤ 90
|
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|
WZP-131
|
12
|
≤ 30
|
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|
Double platinum thermal resistance
|
WZP2-120
|
16
|
≤ 90
|
|||
|
WZP2-121
|
12
|
≤ 45
|
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|
WZP2-130
|
16
|
≤ 90
|
||||
|
WZP2-131
|
12
|
≤ 45
|
||||
|
Copper thermal resistance
|
WZC-120
|
Cu50
|
-50 / 100
|
Brass H62
Stainless steel 1Cr18Ni9Ti
|
12
|
≤ 120
|
|
WZC-130
|
1. Models 120 and 121 are splash-proof junction boxes, and models 130 and 131 are waterproof junction boxes.
