Temperature Switch 700 Series (SWITZER)
– Models 720 / 770 / 780 / 730
– SS Capillary & Flexible armour with SS Bulb and Bellows.
– Range (-)25 to 300°C
– Max Working Temp Up to 310°C
– Fixed or adjustable On-Off differential
– Independent High – Low set points ( Model 781 only)
– Repeatability 1% FSR
– Pr Die Cast Aluminium Weatherproof and Flameproof or Investment Cast SS Enclosures
– Switching – Instrument quality snap acting SPCO micro switch. One or Two as required
Special features of the gas-actuated thermometer
- Scale ranges from -200 … +700 °C [-328 … +1.292 °F]
- Fast response behaviour
- Case and stem from stainless steel
- Various connection and case mounting designs
Description of the gas-actuated thermometer
The model 73 gas-actuated thermometer has been developed and is manufactured in accordance with the EN 13190 standard. This high-quality thermometer has been designed especially for the requirements of the process industry. The thermometer, completely manufactured from stainless steel, is used particularly successfully in the chemical and petrochemical, oil and gas, and power engineering industries.
To allow optimum fitting to the process, individual insertion lengths and process connections are available. The thermometers have a high ingress protection of IP65 and can be used in outdoor applications even at negative temperatures. With liquid damping operation under high vibration conditions is possible.
Due to the wide variety of possible designs, the model 73 gas-actuated thermometers can be perfectly adapted to any process connection or location.
With the contact bulb version, temperature measurements are possible without any contact with the medium, even when the pipe diameter is extremely small. The contact bulb is intended for external mounting on pipes and tanks.
When it comes to harsh climatic conditions at the place of use, the model 73 is the right choice, as it can be used at temperatures ranging from -40 °C [-40 °F] to +60 °C [140 °F] (optionally also up to -50 °C [-58 °F] or -70 °C [-94 °F] in the POLARgauge® version).
Related products
Temperature Switch Model TSM-550 (WIKA)