Regarding the measurement pipeline length of the transmitter
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The pressure at the fan outlet is measured, with a transmitter being used to transmit the signal over distance. However, the location where the fan is situated falls within Zone 3 of control areas, so instruments cannot be installed directly there; instead, instrument tubing is required to carry the pressure signal away from that location. It’s not clear however how long such instrument tubing can be. Is 25m~30m feasible? The outlet pressure of the fan is around 1 KPa.
With a pressure of 1 KPA, it can reach a distance of 25-30 meters; I wonder what size of pipe you use. If it’s too small, the resistance will be too high; since it’s already a low pressure, this could affect the measurements! To convey such low pressure over long distances, use pressure pipes with a large diameter as much as possible!
A pressure of around 1 KPa to drive 25m~30m? The accuracy of the measurement is an issue.
May I ask why, according to the original poster, “it is not possible to install instruments directly in Zone 3”? What is controlling the three zones? ? Generally, the pressure tapping can reach up to 50 meters at the farthest distance. But I’m not sure if such low pressure will work? Please ask an expert to answer
Control three zones? What is it. We have never encountered a gauge that couldn’t be installed.
Zone 3 refers to areas that are radioactive, and moreover, highly radioactive. Instruments cannot be placed directly. I am currently considering using 12*1 gauge tubes; I’m not sure if that will work.
How are Zones 1 and Zone 2 specifically defined?