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A605, No.5 Bldg, BaiziYuan, Chaoyang, Beijing, 100124, China.

 
       
       
       
       
   

 

 

 

Bimetallic Thermometer


Application


It is one kind of thermometers to measure middle and low temperature on the spot. It could be used to directly measure temperature of liquid, vapor and gas ranging from -80℃ to 500℃.


Features


Directly display temperature on the spot

High reliability and long life expectancy

Many structure forms to meet different demands


Operation Theory


Bimetallic thermometer is based on bimetal bended into ring shape. One side of bimetal expands in time of being heated, which results in revolving of indicator, and then the meter indicates corresponding temperature value to pyroelectric potential.


Main Technical Parameters


Executive Standard JB/T8803-1998

Nominal Diameter of Dial: 60, 100, 150

Accuracy Class: (1.0), 1.5

Thermal Response Time: < 40s

Protection Class; IP55

Angle-adjusting Error: It shall be no more than 1% of its measuring range

Return Error: It shall be no more than the absolute value of basic error limit.

Repeat: The repeat range shall be no more than 1/2 of absolute value of basic error limit.

Measuring Range

 

Measuring Range

Application Range

For Industry & Commerce

For Laboratory

-80~40

-40~80

0~50

0~100

0~150

0~200

0~300

0~400

--

0~500

--

 

Electric Contact Bimetallic Thermometer


Application


It is used on production spot with demand of automatic control and alarming on temperature to directly measure temperature of liquid, vapor and gas ranging from -80℃ to 500℃.


Features


    ► Directly display temperature on the spot
    ► Automatically break power and alarm
    ► High reliability and long life expectancy
    ► Many structure forms to meet different demands


Operation Theory


Temperature change results in break or contact of electric contact which leads to operation of relay to realize automatic control and alarming.


Main Technical Parameters


    ► Executive Standard
    ► JB/T8803-1998 GB3836-83
    ► Nominal Diameter of Dial: 100
    ► Accuracy Class: (1.0), 1.5
    ► Thermal Response Time: < 40s
    ► Protection Class; IP55

    ► Electric Parameters

 

Rated Power(VA)

Max. Working Voltage V

Max. Allowed Current

10

220AC

0.7A

24DC

 

Insulation Resistance

Rated Voltage

Testing Voltage(DC)

Insulation Resistance

24DC

100

7

220AC

500

20


    Nominal Ambient Condition
         Temperature: -25~55℃; Relative Humidity: < 85%
    ► Setting Point Error:
          It shall be no more than 1.5 times of basic error limit.
    ► Switch Error:
         It shall be no more than 1.5 times of basic error limit.
 

Explosion-separation Bimetallic Thermometer

 



Application


It is used to directly measure temperature of liquid, vapor, gas and solid surface ranging from -80℃ to 500℃, with explosives such as hydrocarbon on production spot.


Technical Parameters
    Nominal Diameter of Dial: 100
    Thermal Response Time: < 40s
    Explosion-separation Class; d II BT4
    Rated Power: 10VA
    Max. Working Voltage: 220V
    Max. Allowed Current: 0.7A

 

Bimetallic Thermometer with Protection Tube


 

           


Application


Bimetallic thermometers are matched with different mounting tubes to meet different demands on pressure class. It is used to directly measure temperature of liquid, vapor, gas and solid surface ranging from -80℃ to 500℃.


Main Technical Parameters


Nominal Diameter of Dial: 100
Accuracy Class: (1.0), 1.5
Thermal Response Time: < 40s
Protection Class: IP55


Figure & Size
 

Structure

D

A

B

E

d

Radial Type

105

23

73

 

Φ8

Φ10

155

23

73

 

Axial Type

65

50

110

34

155

50

110

34

Universal Type

105

23

178

120

155

23

178

120

Axial Type with Electric Contact

128

40

135

 

Radial Type with Electric Contact

128

72

150

42

Universal Type with Electric Contact

128

40

175

98

 

Bimetallic Thermometer with Thermocouple
 

  
 

Application


We adopt integral design for bimetallic thermometer with thermocouple (thermal resistance) to measure temperature on the spot or for long-range transmission. It is used to measure temperature of liquid, vapor, gas and solid surface ranging from -80℃ to 500℃.


Main Technical Parameters


Nominal Diameter of Dial: 100, 150
Thermal Response Time: < 40s
Accuracy Class: (1.0), 1.5
Thermocouple: Class I: 1.5℃; Class II: 2.5℃
Thermal Resistance: Class A, + (0.15+0.005 ltl) Class B, + (0.15+0.005 ltl)
Protection Class: IP55


Figure & Size
 

Structure

D

A

B

E

d

Radial Type

105

23

73

 

Φ10

Φ12

Φ14

 

 

155

23

73

 

Axial Type

105

50

110

34

155

50

110

34

Universal Type

105

23

178

120

155

23

178

120

Axial Type with Electric Contact

105

40

135

 

Radial Type with Electric Contact

105

72

150

42

Universal Type with Electric Contact

105

40

175

98

 

 
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Last modified: 11/20/14