Automobile Parts - Air Flow Meter User Manual
Series 24-HP Instruction Manual Appendix A Specifications
IM-24-HP A-1
Appendix A Product Specifications
Accuracy
Process
Variables
240 Series In-Line Meters 241 Series Insertion Meters
(1)
Liquids Gas & Steam Liquids Gas &
Steam
Mass Flow
Rate
±1% of rate
over a 30:1
range
(3)
±1.5% of
rate
(2)
over a
30:1 range
(3)
±1.5% of rate
over a 30:1
range
(3)
±2% of
rate
(2)
over
a 30:1
range
(3)
Volumetric
Flow Rate
±0.7% of
rate over a
30:1
range
(3)
±1% of rate
over a 30:1
range
(3)
±1.2% of rate
over a 30:1
range
(3)
±1.5% of
rate over a
30:1
range
(3)
Temperature ± 2° F
(± 1° C)
± 2° F
(± 1° C)
± 2° F
(± 1° C)
± 2° F
(± 1° C)
Pressure 0.4% of
transducer
full scale
0.4% of
transducer
full scale
0.4% of
transducer full
scale
0.4% of
transducer
full scale
Density 0.3% of
reading
0.5% of
reading
(2)
0.3% of
reading
0.5% of
reading
(2)
Notes: (1) Accuracies stated are for the total mass flow through the pipe.
(2) Over 50 to 100% of the pressure transducer’s full scale.
(3) Nominal rangeability is stated. Precise rangeability depends on fluid and pipe size.
Repeatability Mass Flow Rate: 0.2% of rate.
Volumetric Flow Rate: 0.1% of rate.
Temperature: ± 0.2° F (± 0.1° C).
Pressure: 0.05% of full scale.
Density: 0.1% of reading.
Stability Over 12 Months Mass Flow Rate: 0.2% of rate maximum.
Volumetric Flow Rate: Negligible error.
Temperature: ± 0.1° F (± 0.5° C) maximum.
Pressure: 0.1% of full scale maximum.
Density: 0.1% of reading maximum.
Response Time Adjustable from 1 to 100 seconds.
Material Capability Series 240 In-Line Flow Meter:
Any gas, liquid or steam compatible with 316L stainless steel, C276
hastelloy or A105 carbon steel. Not recommended for multi-phase
fluids.
Series 241 Insertion Flow Meter:
Any gas, liquid or steam compatible with 316L stainless steel. Not
recommended for multi-phase fluids.
Flow Rates Typical mass flow ranges are given in the following table. Precise
flow depends on the fluid and pipe size. 241 insertion meters are
applicable to pipe sizes from 2 inch and above. Consult factory for
sizing program.
Water Minimum and Maximum Flow Rates
½-inch ¾-inch 1-inch 1.5-inch 2-inch 3-inch 4-inch 6-inch 8-inch
gpm 1
22
1.3
40
2.2
67
5.5
166
9.2
276
21
618
36
1076
81
2437
142
4270
m
3
/hr .23
5
.3
9.1
0.5
15
1.3
38
2.1
63
4.7
140
8.1
244
18
554
32
970