Description

Bimetal Thermometer is a reliable and accurate sensor, ideal for local temperature readings in most process applications. It can be recalibrated with a turn of the calibration screw on the back of the dial. A variety of options are available for any process needs.

Bimetal Thermometer is called so because there are two pieces of metal inside the shaft. Temperatures can be meassured based on the principle of different thermal expansion of solids.

For this purpose, two metal strips (e.g. steel and brass) with different degrees of thermal expansion are firmly joined together. When heated, the metal strip deforms due to the different degrees of expansion.

The deformation is a measure of the temperature and can be read off a calibrated scale. Due to their metallic materials, bimetallic thermometers can be used at temperatures from below -100 °C to more than 500 °C.

These thermometers come in different face and stem sizes. The one that is best for you will depend on the visual and space requirements you have for your particular project. For instance, we offer 2.5″ to 5″ dial sizes and stem lenghts from 2.5″ to 24″.

Specifications
Sizes:  2.5″, 3″, 4″& 5″ ( 63, 50, 75, 100 & 125 mm)
Accuracy: 1% of full scale
Case, socket, stem: 304 Stainless Steel
Lens:  glass or polycarbonate
Ranges: -40℃ to 600℃/F
Mount type: bottom, back and every angle
Connection: 1/4″ , 1/2″ NPT or BSP
Stem diameter: 6.35 or 12.7mm (0.25″ or 0.5″)
Stem length: 2.5″ to 24″ (63.5 mm to 600 mm)
Measuring Element: Bi-metal helix
Dial: White aluminum with black and red markings
Pointer: Black aluminum
Protection degree: IP65
Pointer: Adjustable with reset screw

Note: the use of thermowells is recommended to protect bimetal thermometers against pressure (>150psi), corrosive fluids and high velocity applications.

Follow us on Twitter and Instagram