Samson 3274 Mounting And Operating Instructions page 44

Start-up
Zero
in
60
40 80
20
100
%
0
3. Slowly turn the 'Zero in' adjuster clockwise until the LED turns off. Turn it slightly further
until the LED lights up again.
4. Use the override to move the valve to the top end position (retract the actuator stem).
5. Set the voltage or current source to 10 V or 20 mA.
6. Turn the 'Span out' adjuster until the output signal is 20 mA.
7. Turn the 'Span in' adjuster counterclockwise until it will go no further, slowly turn it clock-
wise until the LED blanks out and turn it minimally further until the LED just flashes again
8. Connect isolating terminal 81 or perform further settings for direction of action increas-
ing/decreasing:
Red marking pin
Release button
7-4
Span Span
out in
on
off
1 2 3 4
EB 8340 EN