Model 2750

The Model 2750 is used to monitor and control gas flow to a gas proportional detector. It is a standalone system that operates in the same manner as the integrated gas flow monitors used on the Model 239-1F and Model 240. The Model 2750 is typically used to monitor the flow in array of gas proportional detectors.

The front of the control box has two flow meters. The IN flow meter controls the gas flow into the detector and the OUT flow meter monitors the gas flow out of the detector. The two meters should read about the same when the detector is properly functioning. An OUT flow meter reading significantly lower than the IN flow meter indicates there is a leak in the detector.

On the top of the unit are four connections for the supply gas, detector input, detector output, and exhaust.