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I'm looking for a very low flow meter for higher viscosity fluids. I've found a few, but nothing perfect, and I wanted to get everyone's recommendations. Here's the specs:
Flow rate to meter: 0.001-0.5 gpm
Output: NPN or PNP pulse, 5000-100000 pulses/gal
Viscosity: 4-60cps
Corrosion: Fairly benign fluid and typical industrial ambient
Reasonably low cost (many units in each production system)
I assume with that viscosity range I'm going to need a PD meter, possibly a gear meter, and I've found a few, but all seem either too expensive, too low a pulse factor, or I can't seem to get the company to communicate with me and sell me one (not a good way to pick a supplier when you're going to need a boatload of the things).
The specs are somewhat flexible and the ranges noted are to some extent estimates.
Anyone have anything they like? (Vendor responses OK)
Flow rate to meter: 0.001-0.5 gpm
Output: NPN or PNP pulse, 5000-100000 pulses/gal
Viscosity: 4-60cps
Corrosion: Fairly benign fluid and typical industrial ambient
Reasonably low cost (many units in each production system)
I assume with that viscosity range I'm going to need a PD meter, possibly a gear meter, and I've found a few, but all seem either too expensive, too low a pulse factor, or I can't seem to get the company to communicate with me and sell me one (not a good way to pick a supplier when you're going to need a boatload of the things).
The specs are somewhat flexible and the ranges noted are to some extent estimates.
Anyone have anything they like? (Vendor responses OK)