Description
Overviews
Movable flange thermal resistance wzp-420 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.
Specification
working principle
The thermal resistance measures the temperature by using the characteristic that the resistance of the substance changes with the change of temperature. The heated part of a thermal resistance.(Temperature sensing element)When there is a temperature gradient in the measured medium, the measured temperature is the average temperature in the dielectric layer in the range of the temperature sensor.
The assembled thermal resistance is mainly composed of junction box, protective pipe, terminal, insulation casing and temperature sensing element, and is composed of various installation and fixing devices.
|
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 /) |
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|
WZC copper resistance |
-150～100 |
Cu50 |
-50 ≤ 100 ℃ tolerance ±(0.30 × 6.0 × 10 ~ (- 3) t) |
Movable flangeThermal 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-420 |
Pt100 |
-200 / 420 |
Stainless steel 1cr18Ni9Ti Stainless steel 0cr18Ni12M0Ti |
16 |
≤ 90 |
|
WZP-421 |
12 |
≤ 30 |
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|
WZP-430 |
16 |
≤ 90 |
||||
|
WZP-431 |
12 |
≤ 30 |
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|
Double platinum thermal resistance |
WZP2-420 |
16 |
≤ 90 |
|||
|
WZP2-421 |
12 |
≤ 45 |
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|
WZP2-43030 |
16 |
≤ 90 |
||||
|
WZP2-431 |
12 |
≤ 90 |
||||
|
Single platinum thermal resistance |
WZP-420A |
Stainless steel 1cr18Ni9Ti |
16 |
≤ 90 |
||
|
Double platinum thermal resistance |
WZP2-420A |
≤ 90 |
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|
Copper thermal resistance |
WZP-420 |
Cu50 |
-50 / 100 |
Stainless steel 1cr18Ni9Ti |
12 |
≤ 120 |
|
WZC-430 |
The fixed flange mounting plate adds three kinds of chemical industry standard specifications, as detailed in the schedule and Table 2 of the assembled thermocouple.
Type420, 421 are splash-proof junction boxes, models 430 and 431 are waterproof junction boxes.
Fixed flange model specification comparison table
|
Product model |
Fixed flange specification |
|||
|
D0 |
D1 |
D2 |
D3 |
|
|
WZP-420 |
95 |
65 |
45 |
16 |
|
WZP-421 |
95 |
65 |
45 |
12 |
|
WZP-430 |
95 |
65 |
45 |
16 |
|
WZP-431 |
95 |
65 |
45 |
12 |
|
WZP2-420 |
95 |
65 |
45 |
16 |
|
WZP2-421 |
95 |
65 |
45 |
12 |
|
WZP2-43030 |
95 |
65 |
45 |
|
