2" to 4.5" Dials Vapor & Gas Actuated ThermometersVapor and Gas Actuated Thermometers Panel & Surface Mount
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- Accuracy ±1 Scale Division or 1% Scale for Gas
- Brass Movement with Precision Gearing
- White Dial with Black Graduations
- Phosphor Bronze Bourdon Tube
GA-45FR-DN-D-5-J1 Model OptionsView all models
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- Measurement Units °F/°C
OMEGA gas-actuated thermometers combine advanced gas coil technology with a state-of-the-art gas absorbent (Class IV) thermal system, producing a superior temperature measurement instrument that can be fitted to a wide variety of applications. Gas-actuated thermometers have an advantage over vapor-actuated thermometers in that they are more accurate over the full range. They also operate at higher and lower ranges than vapor-actuated thermometers.
The linear dial on all OMEGA gas thermometers provides a consistent 1% accuracy across the full span of each range. This, combined with over 20 Fahrenheit and dual ranges, from -196 to 649°C (-320 to 1200°F), provides complete coverage of all normal temperature requirements.
Dial Sizes: 2', 2½', 3½', 4½'
Dial: Aluminum with white finish and black markings
Pointer: Furnished standard adjustable
Movement: Brass with precision gearing
Bourdon Tube: Vapor-phosphor bronze
Gas: Nitrogen in nispan coil
Vapor: ±1 scale division
Gas: ±1% of scale
Process Connection: Plain bulb, ½NPT union; or thermowell
Note: thermowells must be used whenever the bulb would be exposed to pressure, fluid velocity, or corrosive media.
Window: Polycarbonate STD; glass available on all models
Bulb: Stainless steel or copper; bulb O.D. 3/8' on plain bulbs, 7/16' with threads. Bulb lengths from 2½' to 7 7/8' depending on capillary length.
Capillary: Copper, copper with bronze braid armor; stainless steel with stainless steel armor; capillary lengths 1 to 100' (standard length, 5')