Micropilot FMR60
56 V. 4, Rev. 2, 19-03-2018 Endress+Hauser
3-point linearity protocol
The following points must be considered if option F3 (3-point linearity protocol) was selected in
feature 550 ("Calibration").
The 3 points of the linearity protocol are defined as follows:
A0032642
22 Points of the 3-point linearity protocol; engineering unit: mm (in)
A Distance from the reference point R to the first measuring point
R Reference point of measurement
1 First measuring point
2 Second measuring point (in the middle between the first and third measuring point)
3 Third measuring point
Measuring point Position
1st measuring point • At a distance A from the reference point
• A = length of antenna + 500 mm (19.7 in)
• Minimum distance: A
min
= 1 000 mm (39.4 in)
2nd measuring point In the middle between the 1st and 3rd measuring point
3rd measuring point 6 000 mm (236 in) below the reference point R
The position of the measuring points can vary by ±1 cm (±0.04 in).
The linearity check is performed under reference operating conditions.
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