Bimetallic stemmed thermometer definition

Table of Contents

What is a bimetallic stemmed thermometer?

Benefits of bimetallic stemmed thermometer

What is probably the most correct method to calibrate a bimetal thermometer?

Method 1: Ice and water

Method 2: Boiling Water

Bimetallic stem thermometer applications

Temperature vary of a bimetallic stemmed thermometer

What is a bimetallic stemmed thermometer?

Bimetallic stemmed thermometer is an instrument that uses two completely different metals to measure temperature. Two metals with different coefficients of linear growth are combined and fixed at one end. When the temperature adjustments, the two metals have completely different degrees of thermal expansion. A pointer is pushed to deflect to indicate the temperature. This is the bimetal thermometer. Usually, the layer of the bimetal with a small coefficient of enlargement is recognized as the passive layer, and the layer with a big coefficient of growth is known as the lively layer. It can immediately measure the temperature of liquid, steam and gas media in the range of -80℃~+500℃ in varied manufacturing processes.
Benefits of bimetallic stemmed thermometer

The thermal potential is not interfered with. The thermal potential of the bimetal stemmed thermometer isn’t disturbed by different elements. It is very adaptable to totally different measurement environments.
Diverse construction, can meet totally different measurement necessities. Can be used as electrical contact bimetal thermometer, explosion-proof electrical contact bimetal thermometer, remote transmission bimetal thermometer, and so on.
Fast temperature response and excessive sensitivity. At the same time, the temperature change is intuitive and may be displayed and recorded on web site.
Small size, simple to apply, and robust reliability of temperature measurement. Dial nominal diameter: 60,a hundred (4 inches), one hundred fifty optional.
Long service life, can be used for long-term temperature detection in chemical manufacturing, secure physical and chemical properties.
Stable anti-corrosion performance. Bimetal thermometers in chemical manufacturing usually need to be used in liquid and gas environments. diaphragm seal to guard the pipeline. Will not be affected by the measurement conditions and gained’t produce corrosion issues that affect the standard of measurement.
High pressure-bearing capacity. Has good pressure-bearing capability, can be measured under different pressure ranges, and is highly adaptable to the measurement circumstances.
High electrical conductivity. Small resistance temperature coefficient, linear relationship between thermal potential and temperature, good linearity.
What is the most correct way to calibrate a bimetal thermometer?

Method 1: Ice and water

Fill a container with ice cubes, then add cold distilled water and let it sit for four to 5 minutes to form a watery slurry.
Insert the thermometer probe into the container, ensuring to not contact the aspect, and let it sit till the dial stops shifting.
If the thermometer is correct, the temperature should be 32°F (0°C) after 30 seconds. If not, recalibrate the thermometer. Record discrepancies and offset thermometers as needed.
Method 2: Boiling Water

Bring a clean container of distilled water to a boil.
Once the water is boiling, insert the thermometer probe. Again, ensure the probe does not touch the perimeters or backside of the pot. three.
The temperature must be 212°F (100°C). Record the distinction and offset the thermometer as needed. Please notice that the boiling level of water varies with altitude. Use this useful water boiling level calculator to seek out the right temperature on your altitude.
Bimetallic stem thermometer purposes

The bimetal thermometer is a field testing instrument used to measure low and medium temperatures. It can immediately measure the temperature of liquid, steam and fuel media in the vary of -80℃~500℃ in numerous manufacturing processes.
Electric contact bimetal thermometer is used for temperature control and alarm at manufacturing websites.
Directly measure the temperature of liquid, steam and gaseous media in the vary of -80℃~500℃ in numerous manufacturing processes.
Explosion-proof bimetal thermometer can immediately measure the presence of explosives corresponding to hydrocarbons on the site. Directly measure diaphragm seal of liquid, steam and gaseous media within the range of -80℃~500℃ in varied manufacturing processes.
Remote bimetal thermometer can immediately read the site temperature. And the temperature sign may be transmitted to the remote control system.
Temperature range of a bimetallic stemmed thermometer

Temperature rangeAccuracy classGraduation value ℃Minimum insertion depth Lmin (mm)

-40℃~80℃1.52455560

0℃~50℃1.51110130140

0℃~100℃1.52556570

0℃~150℃1.52404550

0℃~200℃1.55303540

0℃~300℃1.55506060

0℃~400℃1.510405050

0℃~500℃1.510354040

0℃~600℃1.510303535

customizable1****
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Table of Contents

What is a bimetallic stemmed thermometer?

Benefits of bimetallic stemmed thermometer

What is essentially the most accurate way to calibrate a bimetal thermometer?

Method 1: Ice and water

Method 2: Boiling Water

Bimetallic stem thermometer applications

Temperature vary of a bimetallic stemmed thermometer

What is a bimetallic stemmed thermometer?

Bimetallic stemmed thermometer is an instrument that makes use of two different metals to measure temperature. Two metals with totally different coefficients of linear expansion are mixed and fixed at one end. When the temperature adjustments, the 2 metals have totally different levels of thermal expansion. A pointer is driven to deflect to indicate the temperature. This is the bimetal thermometer. Usually, the layer of the bimetal with a small coefficient of enlargement is identified as the passive layer, and the layer with a big coefficient of enlargement is called the energetic layer. It can directly measure the temperature of liquid, steam and fuel media in the range of -80℃~+500℃ in numerous manufacturing processes.
Benefits of bimetallic stemmed thermometer

The thermal potential just isn’t interfered with. The thermal potential of the bimetal stemmed thermometer just isn’t disturbed by other factors. It is highly adaptable to completely different measurement environments.
Diverse construction, can meet completely different measurement necessities. Can be used as electric contact bimetal thermometer, explosion-proof electric contact bimetal thermometer, distant transmission bimetal thermometer, and so on.
Fast temperature response and high sensitivity. At the same time, the temperature change is intuitive and can be displayed and recorded on site.
Small size, straightforward to apply, and robust reliability of temperature measurement. Dial nominal diameter: 60,one hundred (4 inches), a hundred and fifty optionally available.
Long service life, can be utilized for long-term temperature detection in chemical manufacturing, steady bodily and chemical properties.
Stable anti-corrosion efficiency. Bimetal thermometers in chemical manufacturing usually must be used in liquid and gas environments. Has good corrosion resistance to guard the pipeline. Will not be affected by the measurement situations and will not produce corrosion issues that affect the quality of measurement.
High pressure-bearing capacity. Has good pressure-bearing capacity, may be measured underneath completely different stress ranges, and is highly adaptable to the measurement conditions.
High electrical conductivity. Small resistance temperature coefficient, linear relationship between thermal potential and temperature, good linearity.
What is the most correct method to calibrate a bimetal thermometer?

Method 1: Ice and water

Fill a container with ice cubes, then add cold distilled water and let it sit for 4 to 5 minutes to kind a watery slurry.
Insert the thermometer probe into the container, ensuring to not touch the side, and let it sit till the dial stops shifting.
If the thermometer is correct, the temperature ought to be 32°F (0°C) after 30 seconds. If not, recalibrate the thermometer. Record discrepancies and offset thermometers as needed.
Method 2: Boiling Water

Bring a clean container of distilled water to a boil.
Once the water is boiling, insert the thermometer probe. Again, ensure the probe doesn’t touch the perimeters or backside of the pot. three.
The temperature must be 212°F (100°C). Record the difference and offset the thermometer as wanted. Please notice that the boiling point of water varies with altitude. Use this handy water boiling point calculator to search out the proper temperature on your altitude.
Bimetallic stem thermometer purposes

The bimetal thermometer is a field testing instrument used to measure low and medium temperatures. It can instantly measure the temperature of liquid, steam and gas media in the range of -80℃~500℃ in numerous production processes.
Electric contact bimetal thermometer is used for temperature control and alarm at production sites.
Directly measure the temperature of liquid, steam and gaseous media within the range of -80℃~500℃ in numerous production processes.
Explosion-proof bimetal thermometer can directly measure the presence of explosives such as hydrocarbons on the site. Directly measure the temperature of liquid, steam and gaseous media within the vary of -80℃~500℃ in numerous manufacturing processes.
Remote bimetal thermometer can immediately learn the positioning temperature. And the temperature sign could be transmitted to the distant management system.
Temperature range of a bimetallic stemmed thermometer

Temperature rangeAccuracy classGraduation value ℃Minimum insertion depth Lmin (mm)

-40℃~80℃1.52455560

0℃~50℃1.51110130140

0℃~100℃1.52556570

0℃~150℃1.52404550

0℃~200℃1.55303540

0℃~300℃1.55506060

0℃~400℃1.510405050

0℃~500℃1.510354040

0℃~600℃1.510303535

customizable1****

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