14
PXVC
AUGUST 2018
PXVC-L
FIGURE 9.
PXVC-L
The PXVC-L controller is used for liquid level control
in vessels, flooded evaporators or wherever control of
liquid level is needed and is designed to integrate easily
with the Hansen VLT line of probes. The Hansen PXVC-L
controller is optimized to control liquid /- 10% of
the set point.
It is important to note that the PXVC-L reacts opposite
of the input, quite simply this means as the level drops
below set point the valve opens, this is critical to remember
when adjusting set point. The possibility for liquid slugs to
present themselves in this application exist, if not properly
set. Upon startup or shutdown Hansen recommends
setting the level with adequate room for overfeed as on
initial startup the controller may overshoot the set point.
Either the PXV or Motorized Control Valve may be used
in this configuration, for wiring diagram, refer to Figure 9.
