Dial Thermometer Industrial Thermometers
Description
Dial thermometers are devices used to measure temperature. They typically feature a round face with a metal needle that indicates the measured temperature on a calibrated scale. These thermometers can display temperature readings in Fahrenheit, Celsius, or both, and may include features such as min/max readings.
Working Principle
Dial thermometers often use a bimetal spring as the temperature sensing element. This involves a coil spring made of two different types of metals, such as copper, steel, or brass, which are welded or fastened together. One metal has low heat sensitivity, while the other has high heat sensitivity. When the strip is heated, the metals expand at different rates, causing the bimetallic strip to bend or curl towards the side with a lower coefficient of thermal expansion. This movement deflects a pointer over a calibrated scale, indicating the temperature to the user. This mechanism is useful because it provides a simple, mechanical means of measuring temperature without the need for external power sources.
Applications
Dial thermometers are used in various industrial applications, including manufacturing, automotive, HVAC, food and beverage, and construction industries. They are particularly useful in environments where electronic devices might not be suitable due to extreme conditions or where a simple, durable, and reliable temperature measurement is required.
Advantages over other Manufacturing - Specialized Manufacturing Equipment and Components
Dial thermometers offer several advantages, including low cost, durability, ease of installation and use, and accuracy over a wide range of temperatures. Unlike electronic devices, they do not require a power source, making them ideal for remote or off-grid applications. Their mechanical nature also makes them less susceptible to electromagnetic interference, which can be a concern with electronic thermometers.
Limitations
One limitation of dial thermometers is that they are only available as indicating types, meaning they do not provide digital outputs or connectivity options for data logging or remote monitoring. Additionally, there is a possibility of calibration changes due to use or environmental factors. Bimetallic thermometers are generally not as accurate as glass stem thermometers.
Considerations
When selecting a dial thermometer, consider factors such as initial costs, operating expenses, durability, accuracy, and maintenance requirements. Dial thermometers are generally low-cost and durable, but their accuracy may not match that of more sophisticated electronic devices. Maintenance costs are typically low, but periodic calibration may be necessary to ensure accuracy. Replacement costs are also minimal due to their simple construction and lack of electronic components.
from KOBOLD Instruments, Inc.
Product Features. Gas-Filled, Capillary Thermometer. Dial Sizes - 63, 80, 100, 160 & 200 mm.. All Stainless Steel Construction. Ranges -40 to 100 °F Through 32 ° to 1100 °F. Available With Up To Four Switches. KOBOLD TNF capillary thermometers are highly versatile and rugged gas-filled... [See More]
- Thermometer Type: Liquid or Gas Actuated (Vapor-Tension)
- Range: -40 to 1100
- Display / Scale Characteristics: Fahrenheit
- Range: 0.0 to 600
from Baumer Ltd.
Mechanical temperature displays still remain today a favorite solution for measuring temperatures right next to the process. They work reliably even if the system loses electrical power and allow a quick check on the process. Baumer supplies mechanical temperature measurement instruments filled with... [See More]
- Thermometer Type: Bimetal
- Range: -30 to 500
- Display / Scale Characteristics: Celsius/Centigrade
from Winters Instruments
Industrial process, food processing and wastewater. [See More]
- Thermometer Type: Bimetal
- Range: -100 to 1000
- Display / Scale Characteristics: Fahrenheit; Celsius/Centigrade
- Range: -70 to 540
from Cole-Parmer
bull; Silicone-filled gauges provides for readability and long life in tough industrial environments. • Dampened movement. • Anti-parallax dial for accurate readings. • Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments. •... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from KOBOLD Instruments, Inc.
Product Features. Gas-Filled, Rigid Stem Thermometer. Dial Sizes - 63, 80, 100, 160 & 200 mm. All Stainless Steel Wetted Parts. Ranges -40 to 100 °F through 32 ° to 1100 °F. Available With Up To Four Switches. The KOBOLD TNS series rigid stem thermometers are highly versatile and rugged... [See More]
- Thermometer Type: Liquid or Gas Actuated (Vapor-Tension)
- Range: -40 to 1100
- Display / Scale Characteristics: Fahrenheit
- Range: 0.0 to 600
from Winters Instruments
Freezers, walk-in refrigeration units, food storage cabinets, heating and ventilation. [See More]
- Thermometer Type: Other
- Range: -40 to 60
- Display / Scale Characteristics: Fahrenheit; Celsius/Centigrade
- Range: -40 to 15
from Cole-Parmer
bull; The benefits of a liquid-filled case in a silicone-free dry configuration. • Dampened movement. • More economical than silicone gauges. • Greater temperature range than a silicone-filled gauges. • Anti-parallax dial for accurate readings. • Eliminate the risk of a... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from Winters Instruments
Local and remote temperature sensing. [See More]
- Thermometer Type: Bimetal; Thermocouple Technology; RTD Technology
- Range: -40 to 1000
- Display / Scale Characteristics: Fahrenheit; Celsius/Centigrade
- Range: -80 to 550
from Cole-Parmer
bull; The benefits of a liquid-filled case in a silicone-free dry configuration. • Dampened movement. • More economical than silicone gauges. • Greater temperature range than a silicone-filled gauges. • Anti-parallax dial for accurate readings. • Eliminate the risk of a... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from Winters Instruments
Ductwork or motor housings. [See More]
- Thermometer Type: Bimetal
- Range: 50 to 750
- Display / Scale Characteristics: Fahrenheit; Celsius/Centigrade
- Range: 10 to 400
from Cole-Parmer
• Ideal for measuring core temperatures in compost piles, hay, soil, or grains. • 3" diameter dial for easy reading. • Calibrate with external reset screw. • Thermometers meet ASME B40.3 standards for leak- and fog-proof operation. • Tips are 0.25" dia for fast response [See More]
- Thermometer Type: Bimetal
- Range: -15 to 90
- Range: 0.0 to 200
from Winters Instruments
Heating, ventilation, air conditioning, food processing, wastewater, industrial processes, compressors. [See More]
- Thermometer Type: Bimetal
- Range: -40 to 1000
- Display / Scale Characteristics: Fahrenheit; Celsius/Centigrade
- Range: -40 to 540
from Cole-Parmer
bull; Silicone-filled gauges provides for readability and long life in tough industrial environments. • Dampened movement. • Anti-parallax dial for accurate readings. • Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments. •... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from Cole-Parmer
bull; Cole-Parmer Process grade thermometers are silicone-free. • Greater temperature range. • Anti-parallax dial for accurate readings. • Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments. • Rugged 304 stainless steel... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from Cole-Parmer
bull; Silicone-filled gauges provides for readability and long life in tough industrial environments. • Dampened movement. • Anti-parallax dial for accurate readings. • Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments. •... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from Cole-Parmer
bull; Cole-Parmer Process grade thermometers are silicone-free. • Greater temperature range. •. • Anti-parallax dial for accurate readings. • Hermetically sealed per ASME B40.3 standard to prevent fogging and protect against tough environments. • Rugged 304 stainless steel... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from Cole-Parmer
bull; The benefits of a liquid-filled case in a silicone-free dry configuration. • Dampened movement. • More economical than silicone gauges. • Greater temperature range than silicone-filled gauges. • Anti-parallax dial for accurate readings. • Eliminate the risk of a... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 120
- Range: 0.0 to 250
from Cole-Parmer
• Case additive inhibits bacterial grpwth. • Ideal for food applications. • NSF-listed. • Multi-purpose protective case also functions as a handle and recalibration wrench. • Bold easy-to-read dial numerals [See More]
- Thermometer Type: Bimetal
- Range: -18 to 104
from Cole-Parmer
bull; Giant, oversized face has bold, easy-to-read numerals. • All thermometers are made of metal for durability and are weather resistant. • Thermometer easily mounts to walls or any other flat surface. • Dual-scale thermometer reads in both <deg >C and <deg >F. •... [See More]
- Thermometer Type: Bimetal
- Range: 50
- Range: 60 to 120
from Cole-Parmer
bull; Giant, oversized face has bold, easy-to-read numerals. • All thermometers are made of metal for durability and are weather resistant. • Thermometer easily mounts to walls or any other flat surface. • Dual-scale thermometer reads in both <deg >C and <deg >F. •... [See More]
- Thermometer Type: Bimetal
- Range: -50 to 50
- Range: -60 to 120
from Cole-Parmer
• Ensure safe temperatures of food and food holding areas. Displays current refrigerator or freezer temperature.|Dial indicates safe temperature zones. [See More]
- Thermometer Type: Bimetal
- Range: -29 to 27
- Range: -20 to 80
from Cole-Parmer
• Ensure safe temperatures of food and food holding areas. Displays current oven temperature. [See More]
- Thermometer Type: Bimetal
- Range: 38 to 315
- Range: 100 to 600
from Cole-Parmer
• Ensure safe temperatures of food and food holding areas. Determines if correct internal temperature has been met.|Dial features a scale for various meats. Dishwasher safe [See More]
- Thermometer Type: Bimetal
- Range: 49 to 100
- Range: 120 to 212
from Cole-Parmer
• Ensure safe temperatures of food and food holding areas. Determines if correct temperature is being maintained.|Ideal for food-holding areas. [See More]
- Thermometer Type: Bimetal
- Range: 38 to 84
- Range: 100 to 180
from Cole-Parmer
• Ensure safe temperatures of food and food holding areas. Determines if correct temperature is being maintained.|Ideal for food-holding areas [See More]
- Thermometer Type: Bimetal
- Range: -28 to 21
- Range: -20 to 70
from Cole-Parmer
• 1 â € polycarbonate magnifying lens for easy reading. • Factory calibrated to one-point. • Hermetically sealed case. • Includes plastic storage sleeve with pocket clip. • Sleeve includes built in wrench for convenient field adjustment. • Easy-to-read dial [See More]
- Thermometer Type: Bimetal
- Range: 10 to 288
- Range: 50 to 550
from Cole-Parmer
• 1 â € polycarbonate magnifying lens for easy reading. • Factory calibrated to one-point. • Hermetically sealed case. • Includes plastic storage sleeve with pocket clip. • Sleeve includes built in wrench for convenient field adjustment. • Easy-to-read dial [See More]
- Thermometer Type: Bimetal
- Range: -18 to 104
- Range: 0.0 to 220
from Cole-Parmer
bull; Choose the dial size and temperature range to meet your specific needs. • Factory tested to three points with a ±1% accuracy. • Minimum immersion: liquids 2" (50 mm), gases 4" (100 mm). • Hermetically sealed dial stops internal fogging. • Recalibrate using external... [See More]
- Thermometer Type: Bimetal
- Range: -40 to 50
from Cole-Parmer
bull; Choose the dial size and temperature range to meet your specific needs. • Factory tested to three points with a ±1% accuracy. • Minimum immersion: liquids 2" (50 mm), gases 4" (100 mm). • Hermetically sealed dial stops internal fogging. • Recalibrate using external... [See More]
- Thermometer Type: Bimetal
- Range: -100 to 40
from Cole-Parmer
bull; Choose the dial size and temperature range to meet your specific needs. • Factory tested to three points with a ±1% accuracy. • Minimum immersion: liquids 2" (50 mm), gases 4" (100 mm). • Hermetically sealed dial stops internal fogging. • Recalibrate using external... [See More]
- Thermometer Type: Bimetal
- Range: -40 to 70
- Range: -40 to 160
from Cole-Parmer
bull; Maximum registering pointer indicates highest temperature reached. • Waterproof and pressurized to withstand autoclaving cycle. • 304 stainless steel body with glass lens withstands moisture, pressure and high temperature. • Â ¼" NPT threaded connection screws... [See More]
- Thermometer Type: Bimetal
- Range: -20 to 150
- Range: 0.0 to 300
from Cole-Parmer
bull; Remote Reading Thermomete. • Range: -40 to 60 Â °F (-40 to 15 Â °C). • Accuracy: ±1 division, 2 Â ° div. This thermometer have a 2 â € easy-to-read, color-coded scale dial with a 48 â € nickel-plated capillary. A recalibration... [See More]
- Thermometer Type: Bimetal
- Range: -40 to 15
- Range: -40 to 60
from Cole-Parmer
bull; Tough, durable, accurate. • Special color indication over frothing range. • 5 inch stem with clip. • Temperature range 100 to 200F. • Stainless steel construction. • Includes stainless steel clip. • Magnifying, water-tight dial cover. • 1 division accuracy. [See More]
- Thermometer Type: Bimetal
- Range: 100 to 200