Interface Measurement; Dip Mode - Honeywell 854 ATG Series Instruction Manual

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
I1 Interface 1
I2 Interface 2
I3
Interface 3
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

When 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
DM Dip mode
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
W1= Protection level 1
DH= Dip height
DT= Dip time interval
EX Exit
Instruction manual 854 ATG
Description
Interface 1 measurement (based on set point 1); normally used for
product measurement.
Interface 2 measurement (based on set point 2); setting for special
measurement.
Interface 3 measurement (based on set point 3); normally used for
product / water measurement.
Description
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.
Description
Enter protection level 1 password
Format according to item LD. In dip mode, the displacer is raised
above the product over the dip height distance DH.
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.
Exit protection level.
Operation
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