Page
38
Volume (Optional)
Example 3 Volume Application
Only available on
blackbox
130D, fitted with optional LCD display and
integral keypad.
A cylindrical tank with a diameter of 2m and a flat base that is typically used
to temporarily hold liquid, and you wish to know the volume of liquid. You
also require a high and low alarm.
empty distance (P105), 13.5 feet
100%, span (P106), 11.5 feet
high alarm on (P213), 10.0 feet
high alarm off (P214), 9.0 feet
low alarm off (P234), 2.0 feet
low alarm on (P233), 1.0 feet
0%, empty level
In this example, if the level rises to 10.0 feet, then the high-level alarm (relay
1) will come on until the level drops to 9.0 feet. If the level falls to 1.0 feet,
then the low-level alarm (relay 2) will come on until the level rises to 2.0 feet.
The display will show the volume of fluid in the tank and the mA output will
be representative of Volume where 4mA = empty (0%) and 20mA = Max
Volume (100%).
