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
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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 |
|