Temperature Gauge

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Products widely used
Haichen products are safe and reliable, and are widely used in various fields such as steel, petroleum, chemical industry, light industry, building materials, environmental protection, food, power stations, aerospace, ships, etc.

Professional technical team
After years of independent research and development, Haichen now has strong production capacity, large production scale, advanced testing equipment, and a professional technical team.

QC
Strictly tested and inspected before shipment. Organize shipments with long-term freight forwarders, which are reliable and cheap.

Customer service
After shipment, we can notify customers of the tracking number so that customers can track the goods in time. If there are any problems with the product during use, you can contact us at any time by email or phone. We can try to resolve the issue within 24 hours.

What is Temperature Gauge

Industrial thermometers can accurately measure temperatures in industrial processes. Available in a wide range of models, the industrial thermometers can withstand the toughest environments and offer several advantages from vibration resistance, ease of reading the dials and hermetically sealed cases that will prevent the entry of moisture. Industrial thermometers are made from different durable materials like brass, carbon steel or stainless steel to protect the sensors and to enable accurate and precise temperature measurement.

Adjustable Angle Bimetal Thermometer

Bimetal thermometer is a kind of thermometer 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℃~+600℃.

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Bottom Connection Pressure Gauge

Pressure gauge refers to the elastic element as a sensitive element, measuring and indicating higher than the environmental pressure of the instrument. It is widely used and is almost covering all

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Bimetal Thermometer With Sanitary Flange

Bimetal thermometer is a kind of instrument for on site temperature measurement. It could detect temperature of liquid, steam and gas medium in range of -80℃~+600℃ directly.

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Radial Bimetallic Thermometer

WSS series industrial bimetallic thermometers are one kind of field measuring instruments that can measure temperature of middle and low range.

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Bimetallic Type Temperature Gauge

WSS series industrial bimetallic thermometers are one kind of field measuring instruments that can measure temperature of middle and low range.

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WSS 401 Bimetal Thermometer

Bimetal thermometer is a kind of field temperature instrument for measuring medium and low temperature. It can directly measure the temperature of liquid, steam and gas media in the range of -80℃ ~

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Back Connection Bimetal Thermometer

Bimetal thermometer is based on bimetallic plates that winded in a ring. When one end is subject to thermal expansion, the pointer rotated and working instrument displays corresponding temperature

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Industrial Bimetal Thermometer

Bimetal thermometer is one kind of field measuring instruments that can measure temperature of middle and low range on the spot. It could be used to directly measure temperature of liquid, vapor and

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Bimetal Thermometer with Thermowell

Bimetal thermometer’s sensing element changes its shape with the temperature. It drives the needle to rotate and measure the temperature of measured medium. It is one kind of field measuring

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Universal Type Bimetal Thermometer

Bimetal thermometer’s sensing element changes its shape with the temperature. It drives the needle to rotate and measure the temperature of measured medium. It is one kind of field measuring

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Bimetal Thermometer with Pt100

Bimetal thermometer’s sensing element changes its shape with the temperature. It drives the needle to rotate and measure the temperature of measured medium. It is one kind of field measuring

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Electric Contact Bimetal Thermometer

Bimetal thermometer is based on bimetallic plates that winded in a ring. When one end is subject to thermal expansion, the pointer rotated and working instrument displays corresponding temperature

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Benefits of Temperature Gauge

Flash Storage That Functions at Peak Performance
When a product is designed to function and be stored at certain ranges of temperature, it will work at its highest capacity. Delkin designs SSDs specifically made for unique industrial temperature needs without a decline in functionality.

Reduced Risk of Failure
When utilizing a commercial-grade SSD for an industrial-grade application, there is an increased chance it will not meet the required specifications as they’re not designed with industrial specs in mind. Therefore, installing industrial-grade flash storage ensures system efficiency without the risk of data loss due to power failures, data corruption, or other unexpected problems.

Longer Life Cycles
Product life cycles dictate how well and how long an industrial-grade SSD device will last. They also ensure data integrity by predicting system performance along the way. With fitting flash storage designed for extreme temperatures in the field, you’ll rest assured your SSD will last longer than frequently replaced storage solutions would.

Locked Bill of Materials
Industrial SSDs ensure a locked bill of materials, which means that its components will stay the same throughout the time that the product number remains active. This benefits you when a product number is reaching the end of its life cycle and needs to be switched out, so you can place orders and make the appropriate plans to integrate a new one without encountering unexpected challenges.

Customized Rugged Flash Storage Solutions
Because industrial SSDs have highly specific requirements depending on each unique application, Delkin provides personal assistance to craft a rugged flash storage solution that suits your specific needs.

Types of Temperature Gauge

Traditional thermometers (spirit-filled)

Not only is this the cheapest kind of thermometer but the most common for homes and non-specialist applications where traceability is not a requirement. The thermometer is easy to read in both Centigrade and Fahrenheit with very little requirements for maintenance.

Dual sensor or multiple sensor thermometers

These kinds of industrial thermometers are used in professional environments particularly for indoor and outdoor temperature comparisons and monitoring of storage areas. This type of thermometer consists of a main display unit and external temperature sensors with the readings displayed on the main unit.

Irreversible temperature levels

Ideal for processes where specific temperature values should not be exceeded such as engine or bearing monitoring. Each foil segment on the label is sensitive to a different temperature which when exposed to its rating will turn black. The color change is irreversible even after the object being measured has cooled down.

Fixed and wired probe thermometers

Designed to deliver instant temperature readings of foods, liquids and semi-solid samples through its fixed probe. This type of industrial thermometer is considered ideal for catering, laboratories and retail outlets. The wired probe thermometers are similar to fixed probe thermometers however; the difference is that the probe is attached to the thermometer through a wire to maximize utility without compromising accuracy.

K-type thermometers

Able to deal with extreme temperatures found in laboratories and industries. Industrial applications for this kind of thermometer are those that require high precision and can facilitate a range of interchangeable plug in probes for air, liquid, penetration and surface temperature measurement. The main advantage of this industrial thermometer is high accuracy and fast temperature measurement response. Since it is manufactured to be impact resistant, it can be used even in the harshest of environments.

Data-logging thermometers

Allows for continuous temperature measurements in real time or downloaded to be stored in computers. The design of this industrial thermometer is to record temperature history in critical areas such as storage rooms, transportations and laboratories where there is need to submit records to the management for traceability. The analysis software will provide a graphical display of data showcasing total readings and a visual indication of alarm levels throughout the logging period.

Application of Temperature Gauge

HVAC thermostats
Spiral strip-type bimetallic thermometers are integral to the operation of air conditioning thermostats. The bimetallic element responds to temperature changes, triggering the HVAC system to maintain the set temperature, ensuring energy efficiency and occupant comfort.

Industrial process control
Bimetallic thermometers are used in various refinery processes, measuring temperatures in distillation columns, pipelines, and storage tanks. In hazardous environments where sparks from traditional electric sensors pose a risk, bimetallic thermometers provide a safe alternative. They are used in industrial heaters like boilers and furnaces to regulate temperature and prevent overheating.

Safety mechanisms
Bimetallic thermometers are used in safety devices like fire detection systems and emergency shut-offs, where their rapid response to temperature spikes can initiate critical protective actions.

Tire vulcanizers
The manufacturing of tires involves vulcanization, a process requiring precise temperature control. Bimetallic thermometers are used here to monitor and adjust the heat to the optimal level for rubber curing.

Oil burners
In the operation of oil burners, maintaining the correct combustion temperature is essential. Bimetallic thermometers provide real-time feedback, allowing adjustments to ensure efficient fuel consumption and reduce emissions.

Tempering tanks
In the metalworking industry, tempering tanks use bimetallic thermometers to monitor and maintain the temperatures required for tempering metals, impacting the final material properties.

Components of Temperature Gauge

Optical system

The optical system is an important part of the infrared thermometer. Its main functions are: converging the radiation energy, aiming at the measured target, determining the field of view of the thermometer, and at the same time playing a certain sealing role inside the thermometer.

Infrared

The Industrial Thermometer is the core part of the infrared thermometer. The infrared detector receives the radiation energy of the measured target through the objective lens, converts the radiation energy into an electrical signal, and finally obtains the surface temperature of the measured object through subsequent processing.

Signal processing

The Industrial Thermometer converts the infrared radiation into an electrical signal and sends it to the signal processing part. It is input to the microprocessor through the preamplifier and A/D conversion. At the same time, the ambient temperature compensation signal is also input to the microprocessor and linearized by the microprocessor. After processing, environmental compensation and radiation rate correction, the corrected output signal is obtained.

Display output

In practical applications, the temperature signal provided by the processor is used in two ways: one is displayed through the monitor; the other is to transmit the temperature signal to the industrial control system to control the production process, and there are also two methods used at the same time.

How to Choose Temperature Gauge

Connection
The type of connection the bimetal has, or how you need to mount it to see it properly, is also a consideration. Is it rear connected? Or does it have a lower connection? There are also “every angle” thermometers. This type of bimetal allows you to view the temperature from every angle no matter where it’s mounted because the dial rotates 360 degrees.

Material
What is the Industrial Thermometer made of? Although 304 stainless steel is the norm, 316 stainless steel is sometimes required for certain ambient conditions. Also, consider if you need a plastic dial window or shatterproof safety glass.

Size

You need to make sure that your Industrial Thermometer is the right size for the application so that you can view the temperature from all angles. You will need a larger dial size to be able to read it from far away. Options include 2 inches, 3 inches and 5 inches.

Liquid Fill

In vibration applications, silicone liquid fill can prolong instrument life. Liquid-filled thermometers operate in ranges from -40 degrees F to 550 degrees F (-40 to 300 degrees C), so this might be a good option if your process experiences vibration.

Tamper-Proof vs. Externally Adjustable

Industrial Thermometer come in externally adjustable or tamper-proof designs. If you need to check and recalibrate the thermometer in the field, an externally adjustable thermometer works. But a tamper-proof unit has no adjustment, meaning it can avoid any tampering with the temperature indication.

Calibration Procedure for Temperature Gauge

Ake proper care and precautions, temperature calibrators generate extreme temperatures, which can be dangerous and potentially cause burns.

Look for any visual defects that may affect the accuracy. Do not proceed if you find errors.

Prep the measurement data sheet with the necessary information to identify the unit. (Brand, Product, Serial #)

Determine the range of the thermometer, equally divide the range based on the scale, and choose at least three or more test points based on the user's needs.

Power on your Temperature Calibrator and set the desired temperature. Once it is fully stabilized, going from low to high heat, insert the probe into the holes of your calibrator.

Note: There are different sized holes for different size probes; choosing the correct one ensures maximum heat absorption and accuracy.

Wait for display to stabilize (typically takes 15 min.), after tapping the face once, record the reading in the MDS.

Wait two more minutes and get another reading. Repeat this process three times.

How to Maintain Temperature Gauge

Bimetal Thermometer With Sanitary Flange

Check that industrial thermometer is not overheated

Like any electronic device, a pyrometer cannot operate properly over a certain temperature limit. For sensors we recommend operating under 140°f/60°c. Above this ambient temperature limit, the circuit boards inside the pyrometer start to act funny. Pyrometers exposed to ambient temperatures above this limit will start to drift out of calibration and can produce errors in temperature reading. Keeping pyrometers at a cool temperature can extend the life of a pyrometer and decrease the intervals between calibrations.

Make sure the industrial thermometer lens is clean

Just like eyeglasses, a pyrometer works best when the lens is clean. Dirty lenses on your eyeglasses will leave you with blurry or unclear images. Similarly, a dirty pyrometer lens on a single-wavelength pyrometer will lead to some fuzzy temperature readings. A dirty pyrometer lens blocks infrared energy from reaching the pyrometer and will lead to lower measured temperatures. For accurate temperature readings, it is essential to check the pyrometer lens and to clean it if there is any dirt/debris/dust/oil/crud built up on the lens. Similarly, if you are viewing a target through a window, you want to make sure the window is also clean as this will have the same effect as a dirty lens.

Verify the alignment of the industrial thermometer

While it may be an easy step to overlook, it is always important to verify that the pyrometer is aimed at your target. Pyrometers can be accidentally bumped, moved, misaligned, or reinstalled improperly so it is always a good practice to verify alignment. A pyrometer is an optical device so it only can see what is in its field of view. If you can see a physical obstruction between the pyrometer and the target, you can be sure that the pyrometer will see that too if it is in its field of view. For single-wavelength sensors, alignment is critical as the pyrometer takes an average temperature of whatever it sees in its field of view. Therefore a single-wavelength pyrometer needs a full field of view of the target to make an accurate measurement, so as not to average in other non-target temperatures.

Our Factory

Chongqing Haichen Instrument Co., Ltd. was established in June 2000.After years of independent research and development, Haichen now possesses strong production capacity, larger production scale, advanced testing equipment, professional technical team.Haichen mainly specializes in manufacturing temperature sensors (thermocouple, thermal resistance, bimetallic thermometer, etc.), (signal) isolators, safety barriers, vibration meter and other instruments and meters; also undertakes selection and design, installation and commissioning work for automatic complete sets of instruments and meters.

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FAQ

Q: What is an industrial thermometer?

A: An industrial thermometer is filled with liquid. The higher the measured temperature, the more this liquid inside expands. The expanding liquid results in its climbing inside the tube. This way, the temperature can be read on the display next to the tube.K-Type thermocouples are one of the more specialised and niche types of thermometer. They deal with extreme temperatures and are most common in laboratories and industry. This type of device caters for applications that need high precision.

Q: What is the difference between clinical thermometer and industrial thermometer?

A: The clinical thermometer is used to measure body temperature, however, laboratory thermometer is not used for the purpose of measuring body temperature. The temperature range of clinical thermometers is 35°C to 42°C and that of laboratory thermometers is -10°C to 110°C.

Q: What is a bimetallic stemmed thermometer used for?

A: The bimetal stem thermometer can accurately measure the temperature of relatively thick or deep foods such as beef roasts and foods in stockpot.Digital thermometers may seem to be more accurate, but in reality good quality bimetal thermometers are very accurate as well. Both types should be checked for accuracy periodically and calibrated as needed.

Q: What temperature should be bimetal stemmed or digital thermometer?

A: A bimetallic stemmed or digital thermometer doesn't have a specific temperature setting. Instead, it is used to measure the temperature of a substance, such as food or liquid. The appropriate temperature to measure depends on the specific application or the desired temperature range for the substance being measured.

Q: What temperature does a bimetallic thermometer measure?

A: Bimetallic thermometers are widely used in industry. Their typical range is from 40–800 (°F). They are often used for two-position temperature control in residential and industrial thermostats.The thermometers do require calibration when new and after long periods of use, especially after being dropped or jarred.

Q: What is the difference between bimetallic and bimetal?

A: The larger the range, the greater the absolute allowable error of temperature value measured by bimetallic thermometer. The larger the absolute allowable error of 1.5 and 1.0 are respectively expressed in normal use. The allowable errors of the thermometer are (+1.5) and (+1.0) in range.Bimetal refers to an object that is composed of two separate metals joined together. Instead of being a mixture of two or more metals, like alloys, bimetallic objects consist of layers of different metals.

Q: What thermometer is most accurate?

A: Rectal thermometers
Rectal thermometers are still considered by many doctors to be the most accurate for babies and children, but oral and forehead thermometers are also reliable and more convenient to use.While the technology of standard thermostats is simple, it is also slow to respond. It can take some time for the regulator to react to changes in temperature and eventually bimetal strips can wear out and no longer be accurate.

Q: What is the difference between a thermostat and a bimetallic strip?

A: What is the relationship between a bimetallic strip and a ...
Bimetallic strips are used in thermostats for measuring and controlling temperature. The strip is connected to a switch and as the temperature changes the strip flexes and opens or closes a contact. They are also used in ovens for measuring temperature.

Q: How do you calibrate a bimetal thermometer?

A: Put the thermometer stem or probe into the ice water. Make sure the sensing area is under water and not touching the sides of the container. Wait 30 seconds or until the reading stays steady. Adjust the thermometer so it reads 32°f (0°c).

Q: Are digital or dial thermometers more accurate?

A: While both types of thermometers can be accurate, digital thermometers generally provide more precise readings. This is because they can measure temperature to the tenth of a degree, while analog thermometers can only measure in increments of one or two degrees.

Q: What is the most accurate method of calibrating bimetallic thermometers?

A: To calibrate your thermometer:Insert your thermometer stem into ice water. Let sit until the dial on the indicator head stops moving. Adjust the thermometer, so it reads 32°F (0°C). Calibrate your thermometer daily to ensure accuracy.Bimetallic stemmed thermometers are calibrated using the ice-point method. Calibrate regularly after using the thermometer with very hot or cold foods or after dropping or jarring them.

Q: How often should most thermometers except for bimetallic?

A: In general, you should calibrate bimetal thermometers before every single shift. Calibrate digital thermometers every week or month. Always calibrate new thermometers or a thermometer that has been dropped. It's also a good idea to calibrate a thermometer after using it to measure significantly different temperatures.

Q: Why two metals are used in bimetallic thermometer?

A: Bimetal thermometers are thermometers based on the functional principle that metals expand differently depending on the change in temperature. A bimetal thermometer always consists of two different metal strips that have a different thermal expansion coefficient.Yes. This type of thermometer is designed to remain in the food while it is cooking and is generally used for large items such as a roast or turkey.

Q: What happens when a bimetal device is heated?

A: Common bimetal materials are steel/copper and steel/brass which are welded, brazed or riveted together. As the two metals have different coefficients of expansion any changes in temperature will cause the bimetal strip bend one way or the other (depending on an increase or decrease in temp).

Q: What would happen to the bimetal strip when it is cooled?

A: This means that when the bimetallic strip is cooled then the metal with a smaller coefficient of linear expansion will shrink less and the metal with a larger coefficient of linear expansion will shrink more. Hence the strip will bend towards the side with the larger coefficient of linear thermal expansion.

Q: What is the difference between a thermistor and a thermocouple?

A: A thermistor is a thermally sensitive resistor that exhibits a continuous, small, incremental change in resistance correlated to temperature variations. Thermocouples reflect proportional changes in temperature through the varying voltage created between two dissimilar metals electrically bonded together.

Q: What is the most common error often used in temperature measurement?

A: Sensor: The sensor is often the greatest source of error in the reading. It is also difficult to compensate for sensor errors. It requires that only sensor ever be used with the instrument and that it be used at a certain temperature.

Q: How to use a bimetallic stemmed thermometer?

A: Using a Bimetallic Stemmed Thermometer.These thermometers usually measure temperatures from 0º F to 220º F. Check the metal stem for a notch or slight indentation as an indicator of how far into the food the thermometer must be placed to take an accurate reading. Do not leave thermometer in food while it is cooking.

Q: When should you use a bimetallic thermometer?

A: Bimetallic thermometers are used in residential devices like air conditioners, ovens, and industrial devices like heaters, hot wires, refineries, etc. They are a simple, durable, and cost-efficient way of temperature measurement.Bimetallic strips are most often used in modern electronic and mechanical devices such as thermal circuit breakers, thermometers, temperature-sensitive switches, fire alarms, timers, relays, and motor starters.

Q: How does a bimetal thermometer work?

A: Since the two metals expand to different lengths, the bimetallic strip is forced to bend or curl towards the side with a lower coefficient of thermal expansion. The movement of the strip is used to deflect a pointer over a calibrated scale which then indicates temperature to the user.

As one of the most professional industrial thermometer suppliers in China for over 20 years, we're featured by good service and competitive price. Please rest assured to buy high quality industrial thermometer for sale here from our factory. For customized service, contact us now.