Operation
Instruction manual 854 ATG Page 31
4.6 Interface measurement
The 854 ATG can measure three different interfaces. Interface 1 (I1) is normally used to measure the product
level. Interface 3 (I3) can be used to measure the product / water interface. Interface 2 (I2) is a setting for a
special measurement (i.e. interface between two product layers).
Item Name Description
I1 Interface 1 Interface 1 measurement (based on set point 1); normally used for
product measurement.
I2 Interface 2 Interface 2 measurement (based on set point 2); setting for special
measurement.
I3 Interface 3 Interface 3 measurement (based on set point 3); normally used for
product / water measurement.
The default setting is on interface 1 (I1). If one of the other two interface measurements is selected, the
gauge will remain on that interface measurement till the default measurement (I1) is selected.
4.7 Dip mode
W
hen the gauge is in dip mode the displacer will be set at some distance (DH) above interface 1 (product
surface). After a certain time (DT) a single product measurement is executed. After the interface has been
measured, the displacer will be raised over the dip height (DH).
The level, shown on the display and transmitted to the host, will be the dipped level and not the actual
displacer position.
Item Name Description
DM Dip mode Activates the dip mode. In dip mode the displacer is positioned at
distance DH above the product and after a time interval DT, the
product is dipped.
The dip mode is cancelled when one of the interface measurements is selected.
For the dip mode, items DH and DT have to be set (checked) during commissioning (or at a later stage):
Item Name Description
W1= Protection level 1 Enter protection level 1 password
DH= Dip height Format according to item LD. In dip mode, the displacer is raised
above the product over the dip height distance DH.
DT= Dip time interval Standard floating point format; unit: seconds. In dip mode, the interval
time for the dip is specified in the dip time interval DT. Minimum value:
1 sec. maximum value: 32767 sec.
EX Exit Exit protection level.
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