Endress+Hauser Micropilot FMR67 - 5 Point Linearity Protocol

Micropilot FMR67
66 V. 1, Rev. 3, 11-04-2017 Endress+Hauser
5-point linearity protocol
The following points must be considered if option F4 (5-point linearity protocol) was selected in
feature 550 ("Calibration").
The 5 points of the linearity protocol are evenly distributed over the measuring range (0% - 100%).
Empty calibration (E) and Full calibration (F) must be specified in order to define the measuring
range
9)
.
The following restrictions must be considered when selecting E and F:
R
A
F
E
A0032643
Minimum distance between reference point R and 100% mark Minimum span Maximum value for "Empty calibration"
A ≥ length of antenna + 600 mm (24 in)
1)
F ≥400 mm (16 in) E ≤20 m (66 ft)
1) minimum value for FMR67: 861 mm (16 in)
The linearity check is performed under reference operating conditions.
The selected values for Empty calibration
and Full calibration are only used to create the
linearity protocol. Afterwards, the values are reset to the default values specific for the
antenna. If values other than the default values are required, they must be ordered as a
customized parameterization →  67.
9) If (E) and (F) are not specified, antenna-dependent default values will be used instead.