A bimetal thermometer, also known as a bimetallic dial thermometer provides an accurate temperature measurement, through a bimetallic sensing element reacting to temperature change. 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. Bimetal thermometers are a simple and cost effective way to achieve a visual indication of temperature in a process. Use ashcroft duratemp thermometers for ranges above and. Considerations in selecting a weksler bimetal thermometer. Ashcroft pressure and temperature instrumentation trust. The bimetal thermometers are mounted into the respective application with screwin thermowells. T120 standard specification dial size accuracymax 100% of full scale thermometer ordering information model t120 dial size 63, 75, 100mm scale range stem length 63, 75, 100mm connection type 12 bspt 38 bspt options thermowell. Bimetal thermometer chemical version with or without damping nominal size 3, 5 accuracy class 1 description the measuring element of the bimetal thermometer is a quick reacting bimetal coil. Each ashcroft industrial bimetal thermometer is backed by a limited five year warranty.
Bimetal thermometers are economical and offer fair accuracy. The normal operating range should be in the middle half of the range between 25% and 75% of the fullscale range. Class 1,0 to en 100 mm and 160 mm grade a 1 % according asme 3 and 5 features rugged stainless steel construction fast response protection ip65 ip66 antiparallax maxivision dial model e. Bimetal thermometer, adjustable stem and dial model s5412. Bimetal thermometers ashcroft bimetal thermometers are available in a variety of case styles, temperature ranges, and each ashcroft industrial bimetal thermometer is backed by a limited five year warranty. Features rugged all welded stainless steel construction protection ip66 optional atex approved ii 2 gd c txc ip66 optional external adjustment permits zero reset from outside the case. These instruments are provided with an external recalibrator on the rear of the case, for easy temperature adjustment. The instruments meet the highest standards of measurement technique. In a furnace thermostat, the same technique is used and a mercury switch is attached to the coil. Bimetal thermometers are extremely simple in their construction and are as such widely used in industrial applications. Bimetal means two different metals for example brass and iron that expand by a different amount in heat. A bimetal thermometer can be used at an oper ating temperature anywhere throughout its dial range. This reflects the companys commitment to supporting your financial, career development, health and life goals. The bimetal thermometer is made up of two metals moulded together to form a coil.
Bimetal dial thermometers are simple in construction, yet rugged. Series bt bimetal thermometer is accurate and reliable. Adjustable angle bimetal thermometer reotemp instruments. Wika part of your business solutions for pressure, temperature, force and level measurement, flow measurement, calibration and sf 6 gas solutions from wika are an integral component of our customers business processes this is why we consider ourselves to be not just suppliers of measurement components but rather more a competent partner that offers comprehensive. The resultant expansion of bimetal is proportional to temperature. Can be used for intermittent service from 800 to f, or 425 to 500c. On the one hand, this protects the instrument, on the other hand, the measuring. Bimetal thermometer process grade all stainless steel construction. The ci series of ashcroft industrial bimetal thermometers is designed for applications where external adjustment or pointer reset are not desired. There is a long history of superior quality in engineering, manufacturing and customer service of these products.
Temperature measurement devices, bimetal thermometers. It is manufactured from two coldwelded metal strips with different thermal expansion coefficients and rotates in proportion to temperature. Suitable for corrosive media and environments in chemical process, petroleum and food industry. Ashcroft mechanical thermometers ashcroft index page. All star 316ss bimetal thermometers are now available. Thermowells for temperature instruments are recommended for all process systems where pressure, velocity, or viscous, abrasive and corrosive materials. The scale is calibrated to read temperature directly. Temperature measurement devices, bimetal thermometers and. The series bt bimetal thermometersoffer accurate, reliable service even in the toughest environments.
Hermetically sealed case to prevent entry of moisture, interior corrosion and coil freeze up. Bimetals ashcroft pressure and temperature instrumentation. The ashcroft everyangle industrial bimetal thermometer dial face with maxivision dial can be rotated 360 degrees and angled 180 degrees. Thermometer wells when the thermometer is equipped with a well, the well should first be removed from the thermometer and screwed into the apparatus. Bimetal thermometer wika jual pressure gauge wika, schuh. Designed for deepwater drilling, offshore riggs and other rugged outdoor applications.
All metals change in dimension, that is expand or contract when there is a change in temperature. All sales subject to standard terms and conditions. The selection of temperature gauge should be made in accordance with the rules set out in. Reotemp is a globally recognized iso 9001 registered manufacturer of temperature and pressure instrumentation. Use ashcroft duratemp thermometers for ranges above and below those listed above. The stem and the case of the instrument are made from stainless steel. Connection styles are either threaded 14 or 12 npt or plain nonthreaded.
The ashcroft ci bimetallic thermometer provides high quality and performance. Accuracy all weksler bimetal thermometers have an accuracy of 1% of the fullscale range. Bimetal thermometer general specifications miljoco lower connected bimetal thermometers are ideal for applications requiring a compact dial and fixed lower connection. Back connect thermometers are ideal for local, eyelevel temperature readings in most process applications. Unijin industrial bimetal thermometer bottom model. Each thermometer is manufactured to a standard accuracy of 1% of span.
As with other ashcroft industrial bimetal thermometers, it has a maxivision dial which eliminates parallax by placing the pointer on the same plane as the graduations. Bimetal thermometer without affecting the process media or the system. To rotate thermometer head up to 360, make certain thermometer is in back connected position. 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.
Industrial grade all stainless steel construction,3 dial size, bottom connected. All stainless steel bimetal thermometer model a ashcroft. Series bt bimetal thermometer is accurate and reliable even. At ashcroft we are committed to serving our customers by proactively developing and implementing products that are compliant and approved. The ashcroft ei series bimetal thermometers have a hermetically sealed case to prevent entry of moisture, interior corrosion, and coil freezeup.
Industrial bimetal thermometer 3 face x 4 stem, 0250 w. T120 standard specification dial size accuracymax 100% of full scale thermometer ordering information model t120 dial size 63, 75, 100mm scale range stem length 63, 75. Do not bend the stem this will cause misalignment of the internal parts, resulting in permanent damage. External adjustment permits zero reset from outside the case. Environmental conditions the trerice bimetal thermometer is hermetically sealed. Ashcroft provides a comprehensive compensation and benefits program. Lm rc aa thermowell lenzs bimetal thermometers were developed to fill a need for a thermometer performing accurately under rough and difficult applications. Ci series bimetal thermometers ci series selection table ashcroft inc. 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 siliconefree inert gel lens gasket neoprene dial. Dial thermometer 12 npt thread pot thermometer 304 ss kettle thermometer with mounting assembly for brewing beer 3 face taylor precision 8215n 8inch bitherm pocket dial thermometer, 1. This item industrial bimetal thermometer 3 face x 4 stem, 0250 wcalibration dial. You will often find long bimetallic strips coiled into spirals. Bimetal thermometers consist of two rolled metal strips that are wound into a coil.
These corrosion resistant units are constructed from stainless steel and are hermetically sealed to prevent crystal fogging. Trerice bimetal thermometers are furnished with a 0. This is the typical layout of a backyard dial thermometer. Bimetal dial thermometer general instruments consortium. The weksler tm lightpowered industrial thermometer offers an environmentally friendly alternative to mercuryfilled industrial thermometers the lightpowered industrial thermometer can help reduce inventory requirements with its switchable f and c feature, which offers a wide variety of ranges in a single unit 40300f and 40150c. 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.
Typically, bimetal thermometers are used in industrial applications in which ease of viewing temperature is preferred. The twintemp combined bimetal thermometer is also suitable for heating systems. They are used for measurement of temperature in most of the. This thermometer was designed to be positioned to face the direction of easiest reading. A bimetallic dial thermometer, commonly known as a bimetal thermometer, is installed at the point of measurement and is usually read from that location. All ashcroft industrial bimetal thermometers come standard with the maxivision dial which eliminates parallax by placing the pointer on the same plane as the graduations. All stainless steel bimetal thermometer model a and e nominal size 3, 5, 100 mm or 160 mm accuracy. The bimetal element directly drives pointer, eliminating gears and linkage. Usually, mercury or some kind of alcohol is used for the liquid. A bimetal thermometer displays the measured values on site, while the integrated pt100 resistance sensor provides an electrical signal for further processing. Temperature is the most commonly measured process parameter in the world as it is often critical to the success or failure of a process.
Otherwise known as a bimetallic dial thermometer, they operate by employing the use of two dissimilar metals that. Can be used for intermittent service from 800 to f, or 425 to 500 c. Palmer design, quality, and craftsmanship make the palmer all star bimetal thermometer an industry standard for rugged reliability and accuracy. Bimetal thermometers temperature is the most commonly measured process parameter in the world as it is often critical to the success or failure of a process. Weksler manufactures an extensive line of bimetal thermometers. Gas thermometer uses how does a bimetal thermometer work. Range the maximum operating pressure should not exceed 75% of the fullscale range. The bimetal consists of two inseparably joint, metal strips, the coefficient of thermal expansion of.
Maximum overtemperature dual scale ranges available for all standard f ranges 3. All stainless steel bimetal thermometer model a and e. Dampenedmovement bimetal thermometers centerback mount adjustableangle mount ordering information build a dampenedmovement bimetal thermometer ordering number by combining the designators in the sequence shown below. Various insertion lengths and process connections are available to optimally match the requirements of each process. By coiling a very long strip it becomes much more sensitive to small temperature changes. Instructions for the installation and use of lenz bimetal.
From our beginnings, making household thermometers up to our latest products serving the industrial, commercial, food service, and oem marketswe have always. Bimetal thermometer 3 or 5 rear connection miljoco rear connected bimetal thermometers are economic and ideal for applications that can accept a fixed back connection. The rate at which this expansion or contraction takes place depend on the temperature coefficient of expansion of the metal and this temperature. Configure product now request a quote adjustable angle bimetal thermometer reotemps bimetal thermometers are reliable and accurate temperature sensors requiring no electricity or wiring. In these instruments, temperature measurement is made by means of a bimetal sensor. As the temperature rises, the liquid expands, moving up the tube.
For accurate readings stem must be immersed at least 2 inches in liquids and 4 inches in gases. This is accomplished by utilizing the law of coefficient of expansion differential of two unlike materials. These tamperproof instruments are an excellent choice when an external recalibrator or pointer adjustment are not required. Ei series bimetal thermometers ei dimensions dual scale ranges available for all standard f ranges 3. Nominal size 100 and 160 mm temperature element coiled bimetal accuracy class 1 per din en 190 working range. Otherwise known as a bimetallic dial thermometer, they operate by employing the use of two dissimilar metals that react to temperature at differing rates. While the one end of the coil is fixed, the rotatable thermometer pointer is at the other end. 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. Bimetal thermometers mechanical temperature measurement. These thermometers use the following two principles. 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.
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