LINK Systems Omni II Automatic Setups Module - Manual (Page 23)

October 16, 2008 Manual Version 1.1
3-9
Section 3.3.1 Counterbalance Pressure Transducer Mounting
The system uses an automatic method of control in which the fill valve or dump valve is
energized to raise or lower the pressure of the system and a pressure transducer is used to “tell”
the Automatic Setup board the system pressure. The pressure transducer is constantly monitored
to verify that the system is at the proper pressure. When filling or dumping air into or out of the
counterbalance, the transducer tells the system when to stop. Because air pressure drops occur
across air lines when filling or dumping, proper placement of the pressure transducer is very
important for correct operation of the system. Possible pressure transducer mounting locations
from best to worst are (refer to Figure 3.11):
a)
A spare port on the counterbalance surge tank.
b)
The same port that the safety pop-off valve is mounted on if it has its own port on the
surge tank.
c)
Right at the outlet on the surge tank that goes to the counterbalance cylinder.
d)
Right at the inlet on the surge tank from the Fill/Dump valves.
e)
If there is no surge tank the pressure transducer should be mounted right at the inlet
on the counterbalance cylinder.
Figure 3-11 Acceptable Locations for Mounting counterbalance Pressure Transducer