Industrial thermometers are essential for industries that must monitor, measure, and regulate temperatures in a variety of settings.
Industrial thermometers come in several types and sizes and provide accurate readings of temperature at the insertion point, where the stem of the thermometer is immersed in a substance or specific industrial environment. It is important to choose the right type of industrial thermometer for your application, as each type offers different advantages depending on your needs. Take a closer look at the different industrial thermometer types and factors you should consider when selecting industrial thermometers for your facility.
Electronic Thermometers
Electronic thermometers measure temperature using either a probe that is connected to an electronic display or recorder or a device that converts a measure of electrical resistance into a temperature reading. These devices are often found in food processing and quality control applications, as they are able to provide quick, accurate readings with minimal effort.
Infrared Thermometers
Infrared thermometers measure temperature using infrared radiation. They are commonly used in industrial, manufacturing, or medical settings where they are able to accurately measure surface temperatures without direct contact. Infrared thermometers can also be used for remote temperature measurement, allowing the user to take readings from a distance.
Liquid- or Gas-Filled Thermometers
Akin to the old glass “under the tongue” thermometers that parents had used to discern whether their child had a fever, liquid- or gas-filled industrial thermometers are commonly used in industrial settings. They measure temperature using a liquid or gas that expands and contracts as the temperature changes. These devices provide accurate readings over long periods of time.
Bi-Metal Thermometers
Bi-metal thermometers measure temperature by using two different metals that expand and contract at different rates when exposed to changes in temperature. Bi-metal thermometers can be adjusted to perform specific tasks, such as monitoring for high or low temperatures.
Factors To Consider When Selecting an Industrial Thermometer
Choosing the right type of industrial thermometer is important for any application, as each type offers different advantages depending on your needs. By understanding the features and applications of each type, you will be able to make an informed decision that will ensure accurate temperature measurements are taken in your industrial environment. Consider the following factors when comparing industrial thermometer types.
Display in Fahrenheit, Celsius, or Both
Depending on your application and the norms of your location, you will need to decide if you want a thermometer capable of displaying readings in both Fahrenheit and Celsius. This is important for gaining accurate measurements when operational parameters, product or chemical preparation requirements, or user familiarity with a particular temperature scale are critical for correct industrial processes or for meeting manufacturing specifications.
Maximum and Minimum Readings
When selecting an industrial thermometer, consider the thermometer’s readout range—the maximum and minimum temperatures it can measure. Some industrial thermometer models are capable of measuring temperatures as high as 600°F (or higher) and as low as -58°F.
Viewing Window Material
Plastic and glass are two common materials used for the viewing pane in industrial thermometers, and both offer advantages and disadvantages depending on the application. Glass windows are prone to scratches or breakage. Plastic may be more resistant to these issues, but it’s also more susceptible to damage in extreme temperatures.
Accuracy and Precision
Accuracy and precision are essential when selecting an industrial thermometer. The majority of thermometers will offer accuracies within a certain range, so it is important to make sure that your device meets or improves upon the acceptable margin of error for your needs.
Conditions Where You Will Use the Thermometer
The environmental conditions in which you will be using the thermometer may determine your choice of the type of industrial thermometer you can or should use. For example, if your application requires use of the thermometer in extreme temperatures or pressures, in wet or humid conditions, or in areas that create a lot of vibration, it is important to make sure the device can withstand such surroundings before making a purchase.
Also consider whether the thermometer can be sterilized or sanitized if necessary for your industrial application.
Size, Stem Length, and Adjustability of the Stem Angle
Consider the size and stem length of the thermometer. Make sure the device is small enough to fit in tight spaces or hard-to-reach areas if needed. Some models may offer adjustable stems that allow you to change the angle of measurement at the insertion point for more precise readings.
Mounting Options
Different types of industrial thermometers offer different mounting options. Your choice may rest on where you put the thermometer and whether it must be attached to metal, wood, concrete, or some other material.
Some industrial thermometer models may come with a built-in mount, while others will require you to purchase additional parts and accessories separately. This is important to consider if you need to mount the thermometer in a specific location or space.
Determining Which Industrial Thermometer Type Is Right for Your Application
Although several different types of industrial thermometers may work in your setting, some work better than others, depending on the environment where the thermometer is measuring temperature.
- Liquid or gas thermometers, such as mercury or alcohol thermometers, are commonly used in industries like petrochemical processing and food and beverage manufacturing due to their accuracy over a wide temperature range.
- Electronic thermometers, which include resistance temperature detectors (RTDs) and thermocouples, are widely utilized in various sectors, including pharmaceuticals, HVAC, and electronics manufacturing, for their high precision and ability to provide digital readings.
- Infrared thermometers, on the other hand, are ideal for applications that require non-contact temperature measurement, such as in the metal fabrication industry or situations involving moving or hard-to-reach objects.
- Bi-metal thermometers, known for their durability and simplicity, are typically found in heating and cooling systems, industrial equipment, and food service appliances.
Choosing the right type of industrial thermometer depends largely on the nature of your application, the required temperature range, the desired accuracy, and the environmental conditions in which you will use the thermometer.
Direct Material offers a large selection of gauges and industrial thermometers suitable for a variety of industrial applications. Browse our collection and contact us with any questions you may have about which thermometer is right for your industrial environment and application.
