Barksdale UDS7-BX - Manual (Page 3)

Bulletin #272391-A 11/5/13
Page 3 of 7
enter the menu for setting the switch-on delay. Set the desired delay between 0.0 seconds and 9.9
seconds using the arrows to change digits, and the “M” to move from one digit to the next. Once done, the “M” will take the
user back to the menu with
the “dS1”. Press the down arrow to go to the next option, “dr1”. Press “M” to enter the menu for setting the switch-off delay.
Set the desired delay between 0.0 seconds and 9.9 seconds using the arrows to change digits, and the “M” to move from one
digit to the next. Once done, the “M” will take the user back to the menu with the “dr1”. Press the down arrow to go to “lu1”.
Press the “M” to enter the inversion menu to set the fail safe mode. Using the down arrow, the user can toggle between HFS
(high fail safe or normally open) and LFS (low fail safe or normally closed). Scroll to “HFS” and press “M” to select high fail
safe. You are done programming switch point 1. To exit the programming mode, use the up arrow to scroll back to “MENU”
and press “M”.
To test, use a test bench to apply pressure to the switch. Gradually increase pressure to 500 psi. The LED for “S1” will light
up when 500 psi pressure is reached, indicating the switch point is on. Gradually decrease pressure applied to the switch. The
LED will turn off at 400 psi. See graphical representation below where S1on is 500 psi and S1off is 400 psi.
To change to normally closed mode, use the above directions to set the “lu1” to “LFS”. This option will have the S1 LED
light up opposite to the above diagram.
dr1
▲ ▼
lu1