Demand Flow Regulator for Pumped Detectors
The Demand Flow Regulator is for use with 103L, 74L, 58L, 34L or 116L cylinders. The flow rate is determined by demand of the gas detector.
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This Demand Flow Regulator is for use with 103L, 74L, 58L, 34L or 116L cylinders. It has a C-10 end fitting. The flow rate is determined by demand of the gas detector. The regulator provides the exact amount of gas the instrument pump requires. This type of regulator makes calibration quick and easy by eliminating the need for sample bags, flow meters, or special operator training. In addition, it saves calibration gas because it only transfers as much gas as the instrument demands. It is made of brass and nickel plated with a psi of 1200. Demand flow regulators must be used with gas detectors with internal or external sample draw pumps.
Note: There is no manual on/off switch on a Demand Flow Regulator
1. Screw the regulator tightly onto the compressed gas cylinder.
2. When needed, connect the outlet port of the regulator and the sample probe of the instrument with soft tubing (e.g., a short piece of Tygon tubing)
3. After the calibration gas operation (either a span calibration or a span check) is done, disconnect the sample probe of the instrument from the upstream soft tubing
4. Unscrew the regulator from the compressed calibration gas bottle if needed for other applications (it can be left in place).
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