They are available in a variety of mounting styles and can be mounted in vessels or pipes using pipethread mounts. Xs1 silicone free xyw 316ss housing4 and stem 1 25. Use ashcroft duratemp thermometers for ranges above and. Instructions for the installation and use of lenz bimetal. This warranty shall be null and void if the thermometer is exposed or subjected. The model tg54 bimetal thermometer has been developed. As a physical unit, temperature cannot be measured directly, only by means of a process involving a change in temperature. Some of the worksheets below are free thermometer worksheets reading a thermometer in degrees fahrenheit, temperature measurement. Heat engines are not the most efficient ones, and with the use of bimetallic strips the efficiency of the heat engines is even lower as there is no chamber to contain the heat. A liquidinglass thermometer consists of a capillary glass tube with a bulb at one end filled with a thermometric liquid, vacuumed and sealed. Can be used for intermittent service from 800 to f, or 425 to 500c. Bimetal disc thermostats are thermally actuated switches. Teltrus worldclass philosophy encompasses both the latest stateoftheart equipment and manufacturing processes and a customercentric staff and culture. Series bt bimetal thermometer is accurate and reliable.
The bimetallic strip is in the form of a cantilever beam. The bimetal thermometer is a temperature gauge whose principle of measuring is based on the different expansion of metals. Winters instruments tbm bimetal thermometer 1 25mm dial, fixed centre back temperature range 5 stem length code. Pressure gauges commercial gauges industrial gauges specialty gauges gauge accessories. Reotemp sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Bimetal thermometers are inexpensive, simple, and durable. There is a long history of superior quality in engineering, manufacturing and customer service of these products.
Configure product now request a quote back connect bimetal thermometer reotemps bimetal thermometers are reliable and accurate temperature sensors requiring no electricity or wiring. As the temperature rises, the liquid expands, moving up the tube. On the one hand, this protects the instrument, on the other hand, the measuring. Back connect bimetal thermometer reotemp instruments. A bimetallic strip is made of two thin strips of metals which have different coefficients of expansion. An ideal choice for accurate temperature measurement. Such stripe, formed and aged, moves the pointer in the thermometer directly. This heater melts any frost before it can accumulate and evaporates the moisture away.
Bimetal dial thermometer general instruments consortium. All stainless steel construction, hermetically sealed asme b40. Our thermometers are idea for local, eyelevel temperature readings in most process applications. The thermometer gives the less accurate result while measuring the low temperature. Bimetallic thermometer instrumentation and control. The thermometer meets the high requirements of the process industries. A bimetallic strip is made of two thin strips of metals which have different coeffcients of expansion.
Use ashcroft duratemp thermometers for ranges above and below those listed above. Click once on the download button to download the data sheet in excel format. How to calibrate a bimetallic stemmed thermometer using the icepoint method thermometers should be calibrated regularly to make sure the readings are correct. Wherever possible, a miljoco bimetal thermometer should be installed in a thermowell to help protect the stem against fluid erosion, corrosion or other hazards. Back connect thermometers are ideal for local, eyelevel temperature readings in most process applications. Temperature and pressure measurement and precision temperature instruments for industrial applications.
Feel free to use the function similar device request or contact their sales contact. From our beginnings, making household thermometers up to our latest products serving the industrial, commercial, food service, and oem marketswe have always put the customer first. Designed for deepwater drilling, offshore riggs and other rugged outdoor applications. The different metals, often steel and copper or steel and brass, are joined together throughout their length and will expand at different rates as they are heated. These thermometers use the following two principles. A bimetallic strip is also used in a recording thermometer. These thermometers are rugged and preferred by the process, offshore, power, pharmaceutical and chemical industries. Bc450r, bc550r, gt300r, gt400r, and gt500r manufactured and sold by us to be free from defects in material and workmanship under normal use and service. How to calibrate a bimetallic stemmed thermometer using. Temperature range ei dimensions dial connection size location 2. Ei series bimetal thermometers ei dimensions dual scale ranges available for all standard f ranges 3. The scale is calibrated to read temperature directly. Bimetal thermometers are economical and offer fair accuracy.
Model 52 is manufactured in accordance with en 190 and already offers a stainless steel case and accuracy class 1 for nominal sizes 60 mm. They can be recalibrated with a turn of the calibration screw on the back of the dial. Bimetal thermowells series 3 and 5 gauge accessories. Table of contents quality and performance features. The most widely used method to calibrate a thermometer. Instead of being a mixture of two or more metals, like alloys, bimetallic objects consist of layers of different metals. Instructions for the installation and use of lenz bimetal dial thermometers general when removing the thermometer from the packing box, handle it by the case assembly or the fitting. These corrosion resistant units are constructed from stainless steel and are hermetically sealed to prevent crystal fogging. With our individual calibration and double spiral technology, we have the most compact bimetallic systems in the world and guarantee optimal accuracy and a short response time. Sep 24, 2010 the bimetallic thermometer consists of a bimetallic strip. The free end of the strip is connected to the pointer. Consult ashcrofts ei series bimetal thermometers brochure on.
A bimetal thermometer can be used at an operating temperature anywhere throughout its dial range. Mercury is most commonly used as a thermometric liquid, but also several organic liquids are utilized to cover different temperature ranges toluene, ethanol, xylene, pentane, etc. Temperature measurement devices, bimetal thermometers and. External adjustment allows quick, limited span adjustments. When the bimetal disc is exposed to its predetermined calibration temperature, it snaps and either opens or closes a set of contacts.
Bimetal thermometers are ideal for local, eyelevel temperature readings in most process applications. Typically, bimetal thermometers are used in industrial applications in which ease of viewing temperature is preferred. Bimetal thermometer 2 rear connection general specifications miljoco 2 rear connected bimetal thermometers feature a compact design and economical price. Everyangle thermowells must be used on all pressure or velocity applications, to protect the stem of thermometer from corrosion. A bimetallic dial thermometer, commonly known as a bimetal thermometer, is installed at the point of measurement and is usually read from that location. Never install the thermometer directly into a pressurized application. The target markets of this thermometer are airconditioning and machine building. Buy products related to bimetal thermometer products and see what customers say about bimetal thermometer products on free delivery possible on eligible purchases. The model a50 bimetal thermometer is used mainly in heating, airconditioning, ventilation and refrigeration technology and is suitable for a scale range up to 200 c.
Temperature measurement devices 1 thermometers thermowells temperature measurement devices bimetal thermometers and thermowells accurate to 1 % of full scale in accordance with asme b40. Mar 22, 2020 industrial bimetal thermometer 3 face x 4 stem. Bimetal refers to an object that is composed of two separate metals joined together. External adjustment permits zero reset from outside the case. Lead free lead free pressure gauges lead free thermometers ul certified water quality. Bimetal thermometer for industrial applications models a52. Two metal stripes of extreme heat expansion are welded together in a special process. All sales subject to standard terms and conditions. This warranty shall be null and void if the thermometer is exposed or. The thermometer is simple in construction, robust and less expensive. Xs1 silicone free 1 special or longer length available, consult factory 2 dual scale avilable with 3. Did you ever wonder why your frost free freezer is indeed frost free. Do not bend the stem this will cause misalignment of the internal parts, resulting in permanent damage. Breguets thermometer consists of a trimetallic helix in order to have a more accurate result.
Bimetallthermometer standardausfuhrung typ a50 wika. Temperature ranges standard fahrenheit and celsius ranges have been established to encompass all normal temperature measurement requirements. Bimetal thermometer process version per en 190 model. All star 316ss bimetal thermometers are now available. The thermal expansion is the tendency of metal in which the volume of metal changes with the variation in temperature. Reotemps bimetallic bimetal thermometers are reliable and accurate temperature sensors requiring no electricity or wiring. A temperaturemeasuring instrument in which the differential thermal expansion of thin, dissimilar metals, bonded together into a narrow strip and coiled. Read online tbm bimetal thermometer siamrtd book pdf free download link book now. Each coil is silicone dampened for improved vibration resistance. The bimetal element directly drives pointer, eliminating gears and linkage. Palmer design, quality, and craftsmanship make the palmer all star bimetal thermometer an industry standard for rugged reliability and accuracy.
Provision should be made for extreme temperature conditions. These tamperproof instruments are an excellent choice when an external recalibrator or pointer adjustment are not required. Bimetal dial thermometers are simple in construction, yet rugged. Materials of construction component material stem 304 ss case, bezel, staff rod, bellows, bracket, screws 304 ss adjustment screw 303 ss oring silicone dial, pointer aluminum bimetal element varies with temperature range dampening silicone free inert gel lens gasket neoprene dial. Each ashcroft industrial bimetal thermometer is backed by a limited five year warranty. The model tg54 bimetal thermometer has been developed and is manufactured in accordance with the en 190 standard. Ei series bimetal thermometers ashcroft pdf catalogs. Choose your product specifications and options below to configure your product.
The bimetal thermometer employs a bimetal strip in the form of helix it works on the principle of thermal expansion two metals having different coefficient of expansions are joined to form a bimetal. The bimetallic thermometer uses the bimetallic strip which converts the temperature into the mechanical displacement. Thermometers industrial thermometers bimetal thermometers vapor thermometers drum thermometers digital thermometers. These thermometers are ideal for side and elevated installations on tops or sides of tanks or pipes. This site is like a library, you could find million book here by using. This datasheet can specify thermometers with a single or double helix bimetal temperature sensor and electrical alarm contacts. The history of temperature measurement, glass tube thermometers, bimetal thermometers, thermistors, resistance temperature detector, temperature conversion worksheet.
This series has a hermetic seal and an external adjustment in the rear of the case. Bimetal thermometers use two strips of different metals to convert temperature into mechanical displacement. Ei bimetal thermometer ashcroft pdf catalogs technical. E marshall instruments offers 3 heavy duty, industrial bimetallic thermometers. This product brochure provides you with a view of teltru quality as well as all the information you need to select the bimetal thermometer most appropriate for your application. Series bt bimetal thermometer is accurate and reliable even. Temperature measurement devices, bimetal thermometers.
Trimetal and tetrametal refer to objects composed of three and four separate metals respectively. Stem length standard features on the shown bimetal thermometers. They are often used in food and beverage preparation, process temperature measurement, wastewater treatment, boiler systems, and other places. The rate at which this expansion or contraction takes place depend on the temperature coefficient of expansion of the metal and this temperature. Reotemp is a globally recognized iso 9001 registered manufacturer of temperature and pressure instrumentation. Teltru manufacturing company sanitary bimetal thermometers this heavy duty thermometer meets 3a sanitary standard 7407 requirements for sensors and sensor fittings and connectors used in milk and milk products. The deflection of the strip shows the variation of temperature. The two metal strips are joined together by brazing, welding or reveting so that the relative motion between them is arrested.
Bimetallic thermometer article about bimetallic thermometer. Especially in the chemical and petrochemical, oil and gas, power engineering and shipbuilding industries, the temperature measuring instrument manufactured from. The liquidinglass thermometer is a contacttype thermometer which measures temperature from changes in the volume of a liquid. Bimetal thermometer datasheet free specification sheet templates for excel and pdf. Xs1 silicone free xyw 316 ss housing4 and stem 1 25.
Download tbm bimetal thermometer siamrtd book pdf free download link or read online here in pdf. Usually, mercury or some kind of alcohol is used for the liquid. All books are in clear copy here, and all files are secure so dont worry about it. The model a52, r52 bimetal thermometers are the entrylevel model among process thermometers.
Data sheet ei series bimetal thermometers ei series selection table case size ei series dual scale ranges stem lengths available s code length code inches r 21. All metals change in dimension, that is expand or contract when there is a change in temperature. Series bt bimetal thermometer 2, 3 or 5 dial, dual scale, 1% fs accuracy, external reset the series bt bimetal thermometersoffer accurate, reliable service even in the toughest environments. The most commonly used principles in the wika production are highlighted below. The bimetallic thermometer consists of a bimetallic strip. Bimetallic thermometer an overview sciencedirect topics. The working of the bimetallic strip depends on the thermal expansion property of the metal. Recommendations for checking the calibration of bimetal thermometer. For more information and resources on food safety, visit.
Industrial bimetal thermometer 3 face x 4 stem, 0250 w. Its because inside every one of these appliances is a heater. The bimetal thermometers are mounted into the respective application with screwin thermowells. Ei series bimetal thermometers features 1% full span accuracy asme b40. There are three basic types of thermostat switch actions. The series bt bimetal thermometersoffer accurate, reliable service even in the toughest environments. This breaks or completes the electrical circuit that has been applied to the thermostat. The resultant expansion of bimetal is proportional to temperature. An increase in temperature will result in the deflection of the free end of the strip as shown i diagram.
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