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Article code
Positioner
With LCD and autotune, 4 to 20 mA reference variable
Explosion protection
Without
II 2G Ex ia IIC T4 according to ATEX
Intrinsically safe, Ex ia IIC T4 according to CSA Group
1Ex ia IIC T4 Gb X according to GOST
Mounting the positioner
The Type 3725 Electropneumatic Positioner can be attached
directly to the Type 3277 Actuator over a connection block.
When attached to the Type 3277-5 Actuator (120 cm²), the
signal pressure is routed over an internal bore in the actuator
yoke to the actuator.
In actuators with fail-safe action "actuator stem retracts" and
in actuators with effective diaphragm areas of 240 cm² or
larger, the signal pressure is routed to the actuator over
ready-made external piping.
Dimensions in mm
M20 x 1.5
M20 x 1.5
Specifications subject to change without notice
SAMSON AG · MESS- UND REGELTECHNIK
Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany
Phone: +49 69 4009-0 · Fax: +49 69 4009-1507
samson@samson.de · www.samson.de
Type 3725-
22
108
22
108
42
42
21
25
62.50
22
x
x
x
0
M20 x 1.5
0
0
0
1
1
0
0
1
3
0
0
1
1
3
0
Ordering text
Type 3725 Positioner
Attachment
Direct attachment to Type 3277 Actuator
(without pneumatic connecting rail)
Direct attachment to Type 3277 Actuator (120 to 700 cm²)
Attachment according to IEC 60534-6 (NAMUR)
Attachment to rotary actuators acc. to VDI/VDE 3845
Attachment to Type 3278 Rotary Actuator (160/320 cm²)
Pneumatic connecting rail
G ¼ or ¼ NPT
Pressure gauge (max. 6 bar)
With or without
14
14
108
14
0
0
0
0
0
0
9
9
42
21
25
62.50
T 8394 EN
9
9
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