Samson 3730-6, Mounting And Operating Instructions

Page: 15 / 124

3.7 Technical data
EB 8384-6 EN
15
Design and principle of operation
Type 3730-6 Positioner (technical data in test certificates additionally apply for explosion-protected devices)
Travel, adjustable Direct attachment to Type 3277: 3.6 to 30 mm
Attachment acc. to IEC 60534-6: 3.6 to 200 mm
Rotary actuators: 24° to 100°
Travel range Adjustable within the initialized travel/angle of rotation
Travel can be restricted to
1
5
at the maximum
Ref. vari-
able w
Signal range 4 to 20 mA · Two-wire unit with reverse polarity protection · Min. span 4 mA
Static destruc-
tion limit
30 V
Minimum current 3.6 mA for display · Emergency venting at £ 3.8 mA
Load impedance £ 9.2 V (corresponding to 460 W at 20 mA)
Supply air Supply pres-
sure
1.4 to 7 bar (20 to 105 psi)
Air quality
ISO 8573-1
(2001-02)
Max. particle size and density: Class 4 · Oil content: Class 3
pressure dew point: Class 3 or at least 10 K beneath the lowest ambient temperature to
be expected
Signal pressure (output) 0 bar up to the capacity of supply pressure · Limitable between 1.4 and 7.0 bar by soft-
ware
Character-
istic
Adjustable Linear, equal percentage, reverse equal percentage, user-defined (by software)
Butterfly, rotary plug and segmented ball valves: linear/equal percentage
Deviation £ 1 %
Hysteresis £ 0.3 %
Sensitivity
£
0.1 %
Transit time Separately adjustable up to 240 seconds for supply air and exhaust air by software
Direction of action Reversible
Air consumption, steady
state
Independent from supply pressure approx. 110 l
n
/h
Air output
capacity
Actuator pres-
surized
At D p = 6 bar: 8.5 m
n
³/h · At D p = 1.4 bar: 3.0 m
n
³/h · K
Vmax (20 °C)
= 0.09
Actuator
vented
At D p = 6 bar: 14.0 m
n
³/h · At D p = 1.4 bar: 4.5 m
n
³ /h · K
Vmax (20 °C)
= 0.15
Permissible ambient
temperature
–20 to +80 °C for all versions
–45 to +80 °C with metal cable gland
–25 to +80 °C with inductive limit switch (SJ2-S1N) and metal cable gland
Limits in test certificate additionally apply for explosion-protected devices
Influences Temperature £ 0.15 %/10 K
Supply air None
Vibration £ 0.25 % up to 2000 Hz and 4 g acc. to IEC 770
Electromagnetic
compatibility
Complying with requirements of EN 61000-6-2, EN 61000-6-3, EN 61326-1 and
NAMUR Recommendation NE 21