Barksdale UDS7-BX User Manual
Page 4
Bulletin #272391-A 11/5/13
Page 4 of 7
To change the program to switch on at decreasing pressure, the high and low should be switched between the ON and OFF.
Use the directions above, and set the following parameters:
“SP1” = std
“on1” = 400
“OF1” = 500
“lu1” = HFS
As shown in the diagram below, this setting will turn on S1 as pressure drops below 400 psi (“S1on”). The S1 will turn off
when pressure is above 500 psi (“S1off”). Again, to reverse the normally open function, change the inversion selection to
LFS, and the LED will turn off at 400 and back on at 500 psi.
Setting Switch Point 1:
Window mode programming:
The above was a detailed explanation of the standard mode setting. The UDS7-BX unit is also capable of window mode
programming. Window mode allows the user to monitor either within a range or outside of a range of pressure. For example,
the user can have the switch ON between any two pressures, or outside of any two pressures.