78 FLOWSIC100 Flare · Addendum to Operating Instructions · 8025365/V1-0/2020-05 · © SICK Engineering GmbH
Technical data
Fig. 44 Uncertainty of flow rate as function of the velocity of gas (VOG)
2
4
6
8
10
12
0.01 0.1 1 10 100
0
Uncertainty [%]
vog [m/s]
2
4
6
8
10
12
0
90 100 110 120 130
Uncertainty [%]
vog [m/s]
Hot Tapped Dry Calibration Flow Calibration
Ultrasonic measurement ASC Technology
(Additional uncertainty onto ultrasonic
measurement.)
Welded Dry calibrated Flow calibrated
Uncertainty [%]
Uncertainty [%]
This exemplary uncertainty statement according to GUM (Guide to the Expression of Uncertainty in Measurement): ISO/
IEC Guide 98-3:2008-09 shows a F1F-S in 1-path, 16" nominal pipe size configuration and assumes a gas temperature
of 20 °C, ambient pressure, a typical molecular weight of greater than 27 g/mol.
VOG [m/s] VOG [m/s]