Samson 3730-2 Mounting And Operating Instructions page 49

MAN – Initialization based on a manually
selected range
(with default upper x-range value by means
of manual adjustment).
Initialization mode just as NOM , however,
for starting up valves with unknown nominal
range.
In this mode, the positioner expects the con-
trol valve to be moved manually to the de-
sired OPEN position prior to enabling the
initialization procedure.
The upper range travel/angle of rotation
value is adjusted using the rotary
pushbutton. The positioner uses this OPEN
position and the CLOSED position to calcu-
late the differential travel/angle and accepts
it as the operating range with the lower
x-range value and upper x-range value be-
ing the limits.
Enable configuration:
→ Code 3 , press
Turn
→ ON , press
turn
After enabling:
→ Code 4 , press
Turn
→ Select pin position entered dur-
turn
ing installation,
press .
→ Code 6 , press
Turn
→ MAN , press
turn
Default OFF
,
.
,
,
.
→ Code 0 , press
Turn
→ MAN , press
turn
→ Code 1 , press
Turn
Code 1 blinks.
Turn until the valve reaches its OPEN po-
sition, press .
4
Press INIT key to start initialization!
The initialization procedure may
take several minutes, depending on
the actuator size, as the valve moves
through its entire travel/angle of ro-
tation range.
Positioners with EXPERT
tions automatically start plotting the refer-
ence graphs after the initialization process
has been completed. See note at the bottom
of page 46.
Start-up and settings
Default MAX
,
.
Default MAN
,
+
diagnostic func-
EB 8384-2 EN
49