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Assembly Thermal Resistance
Time:2023-12-01
Visits: 517

1、 Application

Usually used in conjunction with display instruments, recording instruments, electronic computing, etc. Directly measure the surface temperatures of liquids, vapors, and gas media, as well as solids, within the range of -200 ° C to 500 ° C during various production processes. The company can also customize various special models of thermocouples, thermal resistors, bimetallic thermometers, and flange sleeves according to samples or drawings.

2、 Characteristics

·Spring loaded temperature sensing element with good vibration resistance;

·No need to compensate for wires, saving costs;

·High temperature measurement accuracy;

·High mechanical strength and good pressure resistance;

·Imported thin film resistor components with reliable and stable performance.

3、 Working principle

Thermal resistance measures temperature by utilizing the characteristic that the resistance of a substance changes with temperature. When the resistance value changes, the working instrument will display the temperature value corresponding to the resistance value.

4、 Main technical parameters

Product Execution Standards

IEC751
JB/T18622-1997
JB/T8623-1997

5、 Room temperature insulation resistance

The thermal resistance is measured at an ambient temperature of 15-35 ° C, a relative humidity of not more than 80%, and a test voltage of 10-100V (DC). The insulation resistance between the electrode and the outer casing is greater than 100M Ω.


6、 Measurement range and tolerance

Model

Graduation

Measuring range

Accuracy class

Allowable error

WZP

Pt100

-200-+500

A Grade

±(0.15+0.002)ltl

B Grade

±(0.30+0.005)ltl

WZC

Cu50

 Cu100

-50-+100

---

±(0.30+0.005)ltl

7、 Terminal box form 

图片6.png


8.TYPE NAMING METHOD

W

Temperature Instrument


Z

Thermal Resistance


Thermal Element Materail

P

Pt

C

Cu


Filament

Blank Simplex

2

Duplex


Mounting & Fixing

1

Without fixing device

2

Threaded Connector

3

Moveable Flange

4

Fixed Flange

5

Elbow Tube connector

6

Fixed threaded cone connector

7

Straight tube connector

8

Fixed threaded tube connector

9

Movable threadd tube connector


Junction Box

2

Anti-spray type

3

Water-proof Type


Protection tube Diameter

0

φ16

1

φ12


Measuring End

G

Variable Cross Section



W

Z

P

2-

2

3

1

G

Model Example


9.Type &Specification

Thermal element

图片7.png

NameTypeGraduationMeasuring RangeSpecification
dL
Simplex   Pt Thermal ResistanceWZP-101Pt100-200-500°Cφ3
φ4
φ5
φ6
310
360
410
460
510
560
Duplex Pt Thermal ResistanceWZP2-101

10.Wring Method

图片8.png

Wiring Method (Simplex)       Wiring Method (Duplex)   



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