Convert your propane flow meter to air.

[Kevin Roach]

The one problem I see you need a voltage regulator on the pump. Other wise as the voltage on your battery drops so will your reading. Unless you pinch the hose and set your pressure to calibrate to a standard or use a standard made up needle valve. I have a T fitting with a screw in it for my standard to set all of the digital flow meters we make.

 

[Terry Keeley]

The one problem I see you need a voltage regulator on the pump. Other wise as the voltage on your battery drops so will your reading. Unless you pinch the hose and set your pressure to calibrate to a standard or use a standard made up needle valve. I have a T fitting with a screw in it for my standard to set all of the digital flow meters we make.

You don't need the voltage regulator, I've been running mine for two years without one.

If you have a regulator that helps a bunch as it maintains the line pressure (40" H2O) if the voltage changes or more important as you change the needle. Lee's is that big red unit, I got mine from McMaster Carr: McMaster-Carr

 

[John Callahan]

Lee, witch variable voltage regulator did u choose to use? Thanks.

 

[LeeWininger]

DROK - 90010 Waterproof DC Buck... https://www.amazon.com/dp/B00C0KL1OM?ref=ppx_pop_mob_ap_share


HSH-Flo 12V/24VDC 6W 8L/min... https://www.amazon.com/dp/B074W35XZK?ref=ppx_pop_mob_ap_share