The stem and the case of the instrument are made from stainless steel. Ashcroft mechanical thermometers ashcroft index page. Industrial bimetal thermometer 3 face x 4 stem, 0250 w. At ashcroft we are committed to serving our customers by proactively developing and implementing products that are compliant and approved. By coiling a very long strip it becomes much more sensitive to small temperature changes. The instruments meet the highest standards of measurement technique. Bimetal thermometers are a simple and cost effective way to achieve a visual indication of temperature in a process. In these instruments, temperature measurement is made by means of a bimetal sensor. The series bt bimetal thermometersoffer accurate, reliable service even in the toughest environments. Reotemp is a globally recognized iso 9001 registered manufacturer of temperature and pressure instrumentation. In a furnace thermostat, the same technique is used and a mercury switch is attached to the coil. This is the typical layout of a backyard dial thermometer. Each thermometer is manufactured to a standard accuracy of 1% of span.
Designed for deepwater drilling, offshore riggs and other rugged outdoor applications. Bimetal thermometer, adjustable stem and dial model s5412. Industrial grade all stainless steel construction,3 dial size, bottom connected. Connection styles are either threaded 14 or 12 npt or plain nonthreaded. Back connect thermometers are ideal for local, eyelevel temperature readings in most process applications. 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. Adjustable angle bimetal thermometer reotemp instruments.
To view a text listing of bimetal thermometers please click here. Can be used for intermittent service from 800 to f, or 425 to 500 c. A bimetal thermometer can be used at an oper ating temperature anywhere throughout its dial range. A bimetal thermometer, also known as a bimetallic dial thermometer provides an accurate temperature measurement, through a bimetallic sensing element reacting to temperature change. Thermometer wells when the thermometer is equipped with a well, the well should first be removed from the thermometer and screwed into the apparatus. This reflects the companys commitment to supporting your financial, career development, health and life goals. Suitable for corrosive media and environments in chemical process, petroleum and food industry. Never rotate the thermometer head when it is in the angled position.
The bimetal thermometer head can be rotated as illustrated only when in back connection position. Weksler manufactures an extensive line of bimetal thermometers. 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. External adjustment permits zero reset from outside the case. 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. Temperature measurement devices, bimetal thermometers and.
Thermowells for temperature instruments are recommended for all process systems where pressure, velocity, or viscous, abrasive and corrosive materials. All star 316ss bimetal thermometers are now available. This item industrial bimetal thermometer 3 face x 4 stem, 0250 wcalibration dial. The scale is calibrated to read temperature directly. Use ashcroft duratemp thermometers for ranges above and. 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. 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.
These thermometers use the following two principles. 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. 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. Bimetal thermometers are economical and offer fair accuracy.
They are available in a variety of mounting styles and can be mounted in vessels or pipes using pipethread mounts. Considerations in selecting a weksler bimetal thermometer. 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. Bimetal thermometers consist of two rolled metal strips that are wound into a coil. Bimetal thermometer wika jual pressure gauge wika, schuh. Ci series bimetal thermometers ci series selection table ashcroft inc. Palmer design, quality, and craftsmanship make the palmer all star bimetal thermometer an industry standard for rugged reliability and accuracy. 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.
Reotemp sells through a mature distribution network that reaches all 50 states and 30 countries worldwide. Unijin industrial bimetal thermometer bottom model. Instructions for the installation and use of lenz bimetal. On the one hand, this protects the instrument, on the other hand, the measuring. The resultant expansion of bimetal is proportional to temperature. Otherwise known as a bimetallic dial thermometer, they operate by employing the use of two dissimilar metals that react to temperature at differing rates. The selection of temperature gauge should be made in accordance with the rules set out in. All stainless steel bimetal thermometer model a and e. 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. The twintemp combined bimetal thermometer is also suitable for heating systems.
Bimetal thermometers mechanical temperature measurement. Temperature is the most commonly measured process parameter in the world as it is often critical to the success or failure of a process. 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. Can be used for intermittent service from 800 to f, or 425 to 500c. Environmental conditions the trerice bimetal thermometer is hermetically sealed. All stainless steel bimetal thermometer model a and e nominal size 3, 5, 100 mm or 160 mm accuracy. Lm rc aa thermowell lenzs bimetal thermometers were developed to fill a need for a thermometer performing accurately under rough and difficult applications. Use ashcroft duratemp thermometers for ranges above and below those listed above. The ci series of ashcroft industrial bimetal thermometers is designed for applications where external adjustment or pointer reset are not desired. A bimetal thermometer displays the measured values on site, while the integrated pt100 resistance sensor provides an electrical signal for further processing. Maximum overtemperature dual scale ranges available for all standard f ranges 3. 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. Bimetallic strip thermometers how thermometers work. 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.
For accurate readings stem must be immersed at least 2 inches in liquids and 4 inches in gases. To rotate thermometer head up to 360, make certain thermometer is in back connected position. Configure product now request a quote adjustable angle bimetal thermometer reotemps bimetal thermometers are reliable and accurate temperature sensors requiring no electricity or wiring. Ashcroft pressure and temperature instrumentation trust. This thermometer was designed to be positioned to face the direction of easiest reading. 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. Accuracy all weksler bimetal thermometers have an accuracy of 1% of the fullscale range. There is a long history of superior quality in engineering, manufacturing and customer service of these products. Gas thermometer uses how does a bimetal thermometer work. Ei series bimetal thermometers ei dimensions dual scale ranges available for all standard f ranges 3. Series bt bimetal thermometer is accurate and reliable. Bimetal thermometer without affecting the process media or the system. This is accomplished by utilizing the law of coefficient of expansion differential of two unlike materials. While the one end of the coil is fixed, the rotatable thermometer pointer is at the other end.
Bimetal dial thermometer general instruments consortium. Series bt bimetal thermometer is accurate and reliable even. 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. 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. The bimetal thermometer is made up of two metals moulded together to form a coil. Bimetal thermometer process grade all stainless steel construction. As the temperature rises, the liquid expands, moving up the tube. Trerice bimetal thermometers are furnished with a 0. These corrosion resistant units are constructed from stainless steel and are hermetically sealed to prevent crystal fogging.
Range the maximum operating pressure should not exceed 75% of the fullscale range. Do not bend the stem this will cause misalignment of the internal parts, resulting in permanent damage. Each ashcroft industrial bimetal thermometer is backed by a limited five year warranty. Nominal size 100 and 160 mm temperature element coiled bimetal accuracy class 1 per din en 190 working range. The ashcroft ci bimetallic thermometer provides high quality and performance. Bimetal thermometer general specifications miljoco lower connected bimetal thermometers are ideal for applications requiring a compact dial and fixed lower connection. They are used for measurement of temperature in most of the. These tamperproof instruments are an excellent choice when an external recalibrator or pointer adjustment are not required. 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. You will often find long bimetallic strips coiled into spirals. The normal operating range should be in the middle half of the range between 25% and 75% of the fullscale range. The ashcroft ei series bimetal thermometers have a hermetically sealed case to prevent entry of moisture, interior corrosion, and coil freezeup. Various insertion lengths and process connections are available to optimally match the requirements of each process.
Hermetically sealed case to prevent entry of moisture, interior corrosion and coil freeze up. Usually, mercury or some kind of alcohol is used for the liquid. A bimetallic dial thermometer, commonly known as a bimetal thermometer, is installed at the point of measurement and is usually read from that location. Bimetal means two different metals for example brass and iron that expand by a different amount in heat. Temperature measurement devices, bimetal thermometers.
All metals change in dimension, that is expand or contract when there is a change in temperature. Otherwise known as a bimetallic dial thermometer, they operate by employing the use of two dissimilar metals that. The bimetal consists of two inseparably joint, metal strips, the coefficient of thermal expansion of. Bimetal thermometers are extremely simple in their construction and are as such widely used in industrial applications. Bimetal dial thermometers are simple in construction, yet rugged. From our beginnings, making household thermometers up to our latest products serving the industrial, commercial, food service, and oem marketswe have always. All sales subject to standard terms and conditions. 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. Ashcroft provides a comprehensive compensation and benefits program. All stainless steel bimetal thermometer model a ashcroft. It is manufactured from two coldwelded metal strips with different thermal expansion coefficients and rotates in proportion to temperature. The bimetal element directly drives pointer, eliminating gears and linkage. 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.
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