Industrial Thermal Resistances

Industrial Thermal Resistances

Industrial Thermal resistances are also called Thermal Resistors. It can measure and regulate the temperature of liquid, vapor and gas media as well as solid surfaces in the range of -200~650℃. If equipped with corrosion-resistant protective tube. Can also be used in corrosive media.

Industrial Thermal resistances are divided into platinum resistors and copper resistors according to materials, as well as less commonly used indium resistors, nickel resistors, etc. It is generally composed of temperature sensing components, transition leads, insulating tubes, protective tubes, junction boxes, installation fixtures and other parts. Usually used with display instruments, recorders and electronic regulators.

We at Sino-Inst mainly produce two major types of assembly thermal industrial thermometers: Pt100, Pt10 platinum thermal resistance and Cu50, Cu100 copper thermal resistance.

Technical Parameters:

Thermal Resistor CategoryResistance valueTemperature measurement rangeAccuracy level and tolerance (℃)
WZP Platinum ResistancePt100-200~500℃Grade A: ±(0.15+0.002︱t︱)
Grade B: ±(0.30+0.005︱t︱)
Pt10-200~650℃
WZC Copper ResistanceCu50-50~150℃±(0.30+0.006︱t︱)
Cu100

Note:

︱t︱ is the value of humidity measured by the hygrometer;
Level A accuracy is not suitable for secondary systems, and the thermometer should be calibrated once a year.

Resistance

  • Graduation number Pt100 Grade A: R0=100±0.06Ω; Grade B: R0=100±0.12Ω
  • Graduation number Pt10 R0=10±0.012Ω
  • Graduation number Cu50 R0=50±0.05Ω
  • Graduation number Cu100 R0=100±0.10Ω

Order Guide

PT100 Platinum Resistance accounts for the largest proportion of use. Therefore, what we are mainly discussing here is PT100. If you need other Resistance types, please feel free to contact us!

W Temperature instrument
Z Thermal resistance
PPlatinum Resistance
KArmored type The structure form
1 Single(can be omitted)Temperature measuring element option
2 Double branch
1No fixed deviceInstall fixed form
2Fixed ferrule thread
3Movable ferrule thread
4Fixed ferrule flange
5Movable ferrule flange
0Simple typeThe free end of the form(outlet)
3Waterproof type
4Explosion proof type
6Socket type
7With connecting wire
3φ3mm
Diameter of sensor
4φ4mm
5φ5mm
6φ6mm
8φ8mm
SThe introduction of elements
ADesign of serial number
W Z      P  K    —  2    3   6   S    A                           (example)

Our thermal resistors can also be used with Thermowells.

Industrial Thermal Resistances Types

Simple terminal type
Simple terminal type
ModelResistance valueMeasuring
range(℃)
Accuracy levelThermal
response time (T0.5S)
Diameter (mm)Length  (mm)Installing fixing
device
WZPK-103SAPT100-200~+420℃A or B level ≤3φ3Single length:
100
200
250
300
400
500
750
1000
 
Double branch length:
100
200
250
300
400
500

Note:Special specifications can be customized
Without Fixing device
WZPK-104SA≤5φ4
WZPK-105SA≤8φ5
WZPK-106SA≤12φ6
WZPK2-105S≤8φ5
WZPK2-106S≤12φ6
WZPK-203SA≤3φ3Fixed ferrule thread
WZPK-204SA≤5φ4
WZPK-205SA≤8φ5
WZPK-206SA≤12φ6
WZPK2-205S≤8φ5
WZPK2-206S≤12φ6
WZPK-303SA≤3φ3Movable ferrule
thread
WZPK-304SA≤5φ4
WZPK-305SA≤8φ5
WZPK-306SA≤12φ6
WZPK2-305S≤8φ5
WZPK2-306S≤12φ6
WZPK-403SA≤3φ3Fixed ferrule flange
WZPK-404SA≤5φ4
WZPK-405SA≤8φ5
WZPK-406SA≤12φ6
WZPK2-405S≤8φ5
WZPK2-406S≤12φ6
WZPK-503SA≤3φ3Movable ferrule
flange
WZPK-504SA≤5φ4
WZPK-505SA≤8φ5
WZPK-506SA≤12φ6
WZPK2-505S≤8φ5
WZPK2-506S≤12φ6
Standard waterproof junction box
Standard waterproof junction box
ModelResistance valueMeasuring
range (℃)
Accuracy
level
Thermal
response time (T0.5S)
Diameter(mm)Length(mm)Installing fixing
deyice
WZPK-133SPt100-200~+420℃ A or B≤3φ3
Single length:
    100
    200
    250
    300
    400
    500
    750
    1000


Double branch length:
    100
    200
    250
    300
    400
    500

Note:Specia specifications can be customized
Without fixing device
W7PK-134S≤5φ4
WZPK-135S≤8φ5
W7PK-136S≤12φ6
WZPK²-135SA≤8φ5
WZPK²-136SA≤12φ6
WZPK-233S≤3φ3Fixed ferrile thread
WZPK-234S≤5φ4
WZPK-235S≤8φ5
WZPK-236S≤12φ6
WZPK²-235SA≤8φ5
WZPK²-236SA≤12φ6
WZPK-333S≤3φ3Movable fernile thread
WZPK-334S≤5φ4
WZPK-335S≤8φ5
WZPK-336S≤12φ6
WZPK²-335SA≤8φ5
WZPK²-336SA≤12φ6
WZPK-433S≤3φ3Fixed ferrule flange
WZPK-434S≤5φ4
WZPK-435S≤8φ5
WZPK-436S≤12φ6
WZPK²-435SA≤8φ5
WZPK²-436SA≤12φ6
WZPK-533S≤3φ3
Movable ferrule flange
WZPK-534S≤5φ4
WZPK-535S≤8φ5
WZPK-536S≤12φ6
WZPK²-535SA≤8φ5
WZPK²-536SA≤12φ6

The explosion-proof junction box
The explosion-proof junction box
ModelResistance valueMeasuring
range(℃)
Accuracy levelThermal
response time (T0.5S)
Diameter (mm)Length  (mm)Installing fixing
device
WZPK-143SPt100-200~420℃A or B≤3φ3Single length:
100
200
250
300
400
500
750
1000

Double branch length:
100
200
250
300
400
500

Note:Special specifications can be customized
Without fixing device
WZPK-144S≤5φ4
WZPK-145S≤8φ5
WZPK-146S≤12φ6
WZPK²-145SA≤8φ5
WZPK²-146SA≤12φ6
WZPK-243S≤3φ3Fixed ferrule thread
WZPK-244S≤5φ4
WZPK-245S≤8φ5
WZPK-246S≤12φ6
WZPK²-245SA≤8φ5
WZPK²-246SA≤12φ6
WZPK-343S≤3φ3Movable ferrule thread
WZPK-344S≤5φ4
WZPK-345S≤8φ5
WZPK-346S≤12φ6
WZPK²-345SA≤8φ5
WZPK²-346SA≤12φ6
WZPK-443S≤3φ3Fixed ferrule flange
WZPK-444S≤5φ4
WZPK-445S≤8φ5
WZPK-446S≤12φ6
WZPK²-445SA≤8φ5
WZPK²-446SA≤12φ6
WZPK-543S≤3φ3Movable ferrule flange
WZPK-544S≤5φ4
WZPK-545S≤8φ5
WZPK-546S≤12φ6
WZPK²-545SA≤8φ5
WZPK²-546SA≤12φ6
The aviation plug type terminals
The aviation plug type terminals
ModelResistance valueMeasuring
range(℃)
Accuracy levelThermal
response time (T0.5S)
Diameter (mm)Length  (mm)Installing fixing
device
WZPK-163SPt100-200~+420℃A or B≤3φ3Single length:
     100
     200
     250
     300
     400
     500
     750
     1000

Double branch length:
     100
     200
     250
     300
     400
     500

Note:Specia specification can be customized
Without fixing device
WZPK-164S≤5φ4
WZPK-165S≤8φ5
WZPK-166S≤12φ6
WZPK2-165SA≤8φ5
WZPK2-166SA≤12φ6
WZPK-263S≤3φ3Fixed ferrule thread
WZPK-264S≤5φ4
WZPK-265S≤8φ5
WZPK-266S≤12φ6
WZPK2-265SA≤8φ5
WZPK2-266SA≤12φ6
WZPK-363S≤3φ3Movable ferrule thread
WZPK-364S≤5φ4
WZPK-365S≤8φ5
WZPK-366S≤12φ6
WZPK²-365SA≤8φ5
WZPK²-366SA≤12φ6
WZPK-463S≤3φ3Fixed ferrule flange
WZPK-464S≤5φ4
WZPK-465S≤8φ5
WZPK-466S≤12φ6
WZPK²-465SA≤8φ5
WZPK²-466SA≤12φ6
WZPK-563S≤3φ3Movable ferrule flange
WZPK-564S≤5φ4
WZPK-565S≤8φ5
WZPK-566S≤12φ6
WZPK²-565SA≤8φ5
WZPK²-566SA≤12φ6
Direct line type
Direct line type
ModelResistance valueMeasuring
range(℃)
Accuracy levelThermal
response time (T0.5S)
Diameter (mm)Length  (mm)Installing fixing
device
WZPK-173SPt100-200~+420℃A or B=3φ3Single length:
100
200
250
300
400
500
750
1000


Double branch length:
100
200
250
300
400
500

Note:Special specifications can be customized
Without fixing device
WZPK-174S≤5φ4
WZPK-175S≤8φ5
WZPK-176S≤12φ6
WZPK2-175SA≤8φ5
WZPK2-176SA≤12φ6
WZPK-273S≤3φ3Fixed fernile thread
WZPK-274S≤5φ4
WZPK-275S≤8φ5
WZPK-276S≤12φ6
  WZPK²-275SA≤8φ5
  WZPK²-276SA≤12φ6
   WZPK-373S≤3φ3Movable fernile thread
   WZPK-374S≤5φ4
   WZPK-375S≤8φ5
   WZPK-376S≤12φ6
  WZPK²-375SA≤8φ5
  WZPK2-376SA≤12φ6
   WZPK-473S≤3φ3Fixed ferrule flange
   WZPK-474S≤5φ4
   WZPK-475S≤8φ5
   WZPK-476S≤12φ6
  WZPK²-475SA≤8φ5
  WZPK²-476SA≤12φ6
   WZPK-573S≤3φ3Movable fernule flange
   WZPK-574S≤5φ4
   WZPK-575S≤8φ5
   WZPK-576S≤12φ6
  WZPK²-575SA≤8φ5
  WZPK²-576SA≤12φ6

Wiring instructions

Two-wire temperature sensor wiring
Two-wire temperature sensor wiring

Description:
The two-wire system is suitable for places where the lead wire is not long and the temperature measurement accuracy is low.

Three-wire temperature sensor wiring
Three-wire temperature sensor wiring

Description:
The three-wire system can reduce or eliminate the effect of resistance on ambient temperature and is used for industrial measurements with general accuracy.

Four-wire temperature sensor wiring
Four-wire temperature sensor wiring

Description:
Use two wires at both ends of the resistor to provide a constant current source I for the resistor. A voltage drop occurs on the resistor. Use the other two wires to connect the display instrument for measurement. This completely eliminates the influence of the wire resistance on the ambient temperature. Mainly used for high-precision temperature measurement.

More Featured Temperature Sensors and Measurement Solutions

The temperature measurement principle of thermal resistance is based on the characteristic that the resistance value of a conductor or semiconductor changes with temperature to measure temperature and temperature-related parameters. Most thermal resistors are made of pure metal materials, with platinum and copper being the most widely used. Materials such as nickel, manganese and rhodium have begun to be used to manufacture thermal resistors.

Thermal resistors usually need to transmit resistance signals to computer control devices or other secondary instruments through leads. We at Sino-Inst produce and supply various types of industrial thermal resistors, mainly the PT100 type.

If you need to purchase industrial temperature sensors such as PT100, or have related questions, please feel free to contact us.

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    Industrial Thermal resistances-Pt100-Series Product List

    Industrial Thermal resistances are also called Thermal Resistors. It can measure and regulate the temperature of liquid, vapor and gas media as well as solid surfaces in the range of -200~650℃. If equipped with corrosion-resistant protective tube. Can also be used in corrosive media.

    Product SKU: Industrial Thermal Resistances

    Product Brand: Sino-Inst

    Product Currency: USD

    Product Price: 35.80

    Price Valid Until: 2029-09-09

    Product In-Stock: InStock

    Editor's Rating:
    5