Your Source for Process Measurement & Control
Product Groups
Vapor and Gas Actuated Thermometers- Panel & Surface Mount
TRODEKS Engineering | Thermocouples, Pressure Transducers, Flow Meters, PID Controllers
VA and GA Series
  • Accuracy ±1 Scale Division or 1% Scale for Gas
  • Brass Movement with Precision Gearing
  • White Dial with Black Graduations
  • Phosphor Bronze Bourdon Tube
 Manuals (contact with email : [email protected])


trodeks® remote vapor- and gas-actuated thermometers aremanufactured to the highest standards for a wide range of uses and can befitted into almost any temperatureindicating application. Theseinstruments are ideal for remote reading, such as panel installations,with capillary lengths of 1 to 100'. Vapor, or more precisely vaporizedliquid, thermometers will give excellent readings, provided the temperature being measured is above or below ambient temperature.Vapor instruments also have progressive graduations and arebest read in the upper 2/3 of the dial range. Many ranges are availablebetween -40 to 232°C (-40 to 450°F), and care should be taken to select a range that will locate the operating temperatures within the upper 2/3 ofthe dial range.

trodeks gas-actuated thermometers combine advanced gas coil technologywith a state-of-the-art gas absorbent (Class IV) thermal system, producing asuperior temperature measurement instrument that can be fitted to a widevariety of applications. Gas-actuated thermometers have an advantageover vapor-actuated thermometers in that they are more accurate over thefull range. They also operate at higher and lower ranges than vapor-actuatedthermometers.

The linear dial on all trodeks gas thermometers provides a consistent1% accuracy across the full span of each range. This, combined withover 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')
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