Veris Accelabar Brochure - Manual (Page 5)

5
Test Specifications*
Pipe Size: 3” sch 40
Fluid: Air
Flow Rate: 145 ACFM
Max Pressure: 60 psig
Max Temperature: 75°F
Results
The Accelabar produced a DP of
255.5” H
2
O at 145 ACFM. An accuracy
of ±0.75% was maintained over a
Reynolds Number range of 65 to 1.
No other flow meter is capable of this
operating range.
*Independent, NIST traceable tests were performed
as follows:
• Air tests in 3”, 4”, 6” and 12” pipes
• NIST traceable water tests
• Large turndown natural gas testing
• Short straight-run testing
Consult factory for a copy of certified tests.
Turndown Test
Test Specifications
The Accelabar was tested immediately downstream of a valve, tee and expander
assembly with no straight run upstream.
Results
The short run test plotted
with the standard straight
run test verifies there is no
shift in the flow coefficient.
The Proof Is In The Data
Many flow meters claim high accuracy and rangeability or turndown. However, few manufacturers define their
limitations and even fewer can support it with actual test data. The tests below show the performance capabilities
of the Accelabar.
No Straight Run Test Comparison
0.500
0.490
0.480
0.470
0.460
0.450
0.440
0.430
0.420
0.410
0.400