Ball Bearing Gas Turbine Flow meters with Male NPT Fittings

FTB-930

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±1% of Reading Accuracy
Ball Bearing Design for Economy
440C Bearing Retainers for Durability
Ball Bearings Field Replaceable Without Loss of Calibration
Deflector Cones Stabilize Low Mass Rotor for Increased Bearing Life
NIST Certificate Supplied Standard

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Descrição

The FTB930/940 series has been discontinued. Please see the FTB1400 SERIES as a possible alternative or contact our Flow Engineering department.

The OMEGA™ FTB-930 & FTB-940 Series turbine meters have male NPT end fittings for easy connections. They are suitable for use with gases with a minimum density of 0.025 lb/ft 3 (air at STP is 0.0752 lb/ft 3 ).These units come supplied with a mating 2-wire connector and can be supplied with integrally mounted FLSC-60 Series signal conditioners to provide 4-20 mA, 0-5 V, or amplified pulse outputs. These turbine gas meters are intended for clean service only; where there is any doubt about the fluid, strainers are recommended.

OMEGA™ precision turbine gas flowmeters are designed to measure actual cubic feet or actual volume passing through the meter. Before sizing a flowmeter, it is necessary to convert flow units (i.e., SCFM, LPM, etc.) to actual units. To convert to actual measured volume (ACFM) from standard volume (SCFM), use the following formula:

ACFM	=	SCFM x 14.7/Pa x Ta/530
where:
ACFM	=	Actual cubic feet per minute of measured gas flow
SCFM	=	Standard cubic feet per minute gas flow
Pa	=	Operating pressure (psia) in = (psig + 14.7)
Ta	=	Temperature in degrees, Rankine = (°F + 460)

SPECIFICATIONS
Accuracy: ±1.0% of reading
Repeatability: ±0.25%
Materials of Construction:
Body: 304/316 stainless steel
Rotor: 17-4 PH SS
Bearings: 440C stainless steel
Output: 30 mV p-p sinewave min.