Digital Gas Flow Meter

Listing ID #237293

within the working range of the meter the rotor spins
proportional to the actual velocity of gaseous material
flowing. a pick-up sensor produces an electrical signal as
each blade crosses through its low magnetic or rf
field. this signal is amplified and conditioned by a
transmitter or fed directly into a rate/totalizer, and represents
the actual cubic feet per minute (acfm) flowing
through the meter. the k-factor is stenciled on the
meter body in pulses per actual cubic feet (p/acf).
because gases are compressible, most people desire
to measure the equivalent amount of gas corrected for
the line pressure and temperature to standard cubic
feet per minute (scfm at 60â°f, 14.69 psia). if the
flow temperature and pressure are relatively constant,
then a simple correction can be calculated to shift the
k-factor from p/acf to p/scf and a simple totalizer
(measurement systems india make ) may be used. when flow
temperature and pressure are not constant, a flow computer.
specifications
linearity 1
â±1.0%/0.5%
repeatability 1
â±0.25%
maximum over-range
125% of flow rate for intermittent periods
frequency output
0 to 1,100 hz
voltage output
approximately 100 mv@ 100 hz to 1.5 v (rms)@
1,000 hz.
pressure drop
0.5 psi at 100% of flow range
pressure rating we manufacture flowmeters for most pressures.
installation
vertical or horizontal (any direction).
materials of construction
body: 316 l stainless steel.
flanges: 316 stainless steel
rotor: 431 stainless steel.
rotor shaft/bearings:
standard: tungsten carbide v-cup
cartridge frame retainer: 302 stainless steel
cartridge frame: 316 l stainless steel.
temperature range:meter with bearing structure of:
standard: tungsten carbide: -40â°f to 300â°f (-40â°c to 149â°c).
for other temperatures consult factory.