Page
26
Chapter 4
Programming Guide
Level
Level
Level
Level
Example 1 Level Measurement
empty distance (P105), 3.5m
100%, span (P106), 3.2m
(output = 5 volts)
high alarm on (P213), 2.5m
high alarm off (P214), 2.4m
low alarm off (P224), 0.6m
low alarm on (P223), 0.5m
0% , empty level (output = 0 volts)
In this example, a
blackbox
and dB6 is being used to monitor a moving
level within a vessel and is required to provide a 0 to 5 volt output
proportional to the level, over a range of 3.2m. In addition when the level
rises to 2.5m, Relay ‘1’ is required to give a high alarm and rest when the
level falls to 2.4m. In the event that the level should fall to 0.5m then Relay
‘2’ is to give a low alarm and reset once the level rise to 0.6m.
