Veris Accelabar Brochure - Manual (Page 3)

3
Verabar Provides the Accuracy
The proven technology of the Verabar makes
the Accelabar work. It accurately measures the
flow rate within the nozzle. Its unique bullet shape,
constant flow coefficient, solid one-piece construction,
non-clog design and signal stability make it the
only design capable of producing the overall
performance.
Verified Accuracy and
Flow Coefficients
Empirical test data from independent
laboratories verified an analytical model
and flow coefficients as constant and
independent of Reynolds Number
and within ±0.75% of the predicted
value over a flow turndown of 65:1
(see actual test). This eliminates
the need for calibration.
0.500
0.490
0.480
0.470
0.460
0.450
0.440
0.430
0.420
0.410
0.400
Published Flow Coefficient: 0.4568
Reynolds Number Range: 6,517 to 438,160
Flow Turndown: 65 to 1
DP Turndown: 2,293 to 1 (0.111” H
2
O to 255.51” H
2
O)
Flow Coef
ficient (K)
Flow Test
Accelabar Flow Meter
Flow Coefficient vs. Reynolds Number
Date 8-21-02
Accuracy
±0.75%
Flow Turndown 65:1
0 50 100 150 200 250 300 350 400 450
Reynolds Number ✕ 1,000