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Commissioning
8. Commissioning
SFIDK.PS.029.V3.02 -
521H0553
SITRANS F US SONOFLO
®
®
®
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®
CALIBRATION OPTIONS
APPLICATION
PARAMETERS
Correction factor
The correction factor allows the user to adjust the calibration factor by up to ±20% by entering a
factor between 0.8 and 1.2. The factory setting is 1.
Cable length
If the signal converter is installed in a remote position, entering the length of the sensor cable is
necessary to compensate for the time delay occurring in the cables. The cable length is the total
length of the signal cable in one sound track. The measuring unit of the cable length is meters.
The tolerance is ±0.5 m.
Viscosity
Only required in case of auto calibration.
Wet calibration
The calibration factor can also be changed by inserting the terminal supplied with the set into the
bottom of the electronics unit. Remove the terminal after programming if the signal converter is fitted
with a SENSORPROM
®
memory unit. With no SENSORPROM
®
unit the calibration factor must be
set is manually.
Auto calibration
Selecting AUTOMATIC will allow the converter to calculate a theoretical calibration factor based
on the information entered in the APPLICATION PARAMETERS and PIPE GEOMETRY menus.
The theoretical calibration factor is a function of liquid viscosity, inner pipe diameter,
roughness, number of tracks, transducer distance, track angle and displacement of each track.
Automatic calibration can be used only with conventional "spool pieces".
CALIBRATION
CHOICE
CALIBRATION
WET
AUTOMATIC
CAL.FACTOR
CAL.FACTOR