Honeywell Enraf VITO Instruction Manual page 24

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Item Name
Temperature element offset
MO=
MI= Switch hysteresis
MP= Product immersion depth
Gas immersion depth
MG=
Temperature status conversion One character (default: 'T')
TU=
EX Exit
Instruction manual VITO
Average temperature measurement with MRT
Description
Format according to item LD (default: +000.0000 m).
The offset represents the distance from the tank zero level to the
lowest position of the MRT.
Note:
In case of ullage measurement, distance MO is taken from the
upper reference point.
Format according to item LD (default: +000.1000 m).
The distance MI is a hysteresis around the switching point of the
temperature elements.
Format according to item LD (default: +000.5000 m).
The distance MP specifies the minimum required liquid level
above an element before it is selected for the average product
temperature calculation.
Format according to item LD. (default: +000.5000 m).
The distance MG specifies the minimum required distance before
the resistance value of the longest element is taken in the
average gas temperature calculation
This item is used to indicate the temperature status character in
case of a reduced or not guaranteed temperature accuracy. This
is the case when the temperature status is:
out of specified temperature range
•
exceeding differential temperature range
•
last valid level used
•
manual level used
•
level below lowest temperature element
•
If required, this item can be set to another character.
Exit protection level 2
Page 22