48
NDX VALVE CONTROLLER
•
Symmetry
þ This parameter defines the symmetry for the
valve opening and closing speeds
þ The range for the symmetry parameter value is
0.0 ... 2.0
þ Once Symmetry parameter is selected, press
enter to edit the parameter
þ Default value is 1.0 and it means that the valve
opening and closing speeds are symmetrical.
Values lower than 1.0 mean that the valve
closing direction is boosted and is faster than
the valve opening direction. If the value is bigger
than 1.0 the valve opening direction is boosted
and is faster than the valve closing direction.
þ Change value with arrow keys and confirm that
with enter.
•
HART revision
þ Select if device is used as HART 6 or HART 7
device. As default device is HART 6 device.
þ Once HART revision is selected, press enter to
edit the parameter. Select or change value with
arrow keys and confirm that with enter.
þ Device needs to be rebooted after change.
•
Setpoint unit
þ It is possible to define if setpoint unit will be in
% or in mA in one of the main views.
þ Once Setpoint unit is selected, press enter to
edit the parameter. Select correct unit with
arrow keys and confirm that with enter.
•
Pressure unit
þ Pressure units can be selected between Bar
and Psi.
þ Once Pressure unit is selected, press enter to
edit the setting. Select correct setting with
arrow keys and confirm that with enter.
•
Screen rotation
þ Screen orientation can be changed so the LUI
will be correct no matter what orientation the
device is mounted.
þ Once screen rotation is selected, press enter
to edit the setting. Select correct setting with
arrow keys and confirm that with enter.
12 LOCAL USER INTERFACE (LUI)
