Technical Data - Samson 3730 Series Mounting And Operating Instructions

Design and principle of operation
3.1

Technical data

Positioner (technical data in test certificates additionally apply for explosion-protected devices)
Travel, adjustable
Travel range
Reference variable w
Minimum current
Load impedance
Supply air
Air quality acc.
to ISO 8573-1
Signal pressure (output)
Characteristic
Hysteresis
Sensitivity
Transit time
Direction of action
Air consumption, steady state
Air output capacity
Actuator filled with air
Actuator vented
Permissible ambient
temperature
Influences
Electromagnetic
compatibility
Electrical connections
10
EB 8384-1 EN
Direct attachment to Type 3277: 3.6 to 30 mm
Attachment acc. to IEC 60534-6: 3.6 to 200 mm or 24° to 100° with rotary
actuators
Adjustable within the initialized travel/angle of rotation;
travel can be restricted to
Signal range 4 to 20 mA · Two-wire device, reverse polarity protection,
split-range 4 to 11.9 mA and 12.1 to 20 mA, static destruction limit 100 mA.
3.7 mA
≤ 6 V (corresponding to 300 Ω at 20 mA)
Supply pressure from 1.4 to 7 bar (20 to 105 psi),
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
0 bar up to supply pressure, limitable to approx. 2.4 bar via software
Optionally 1 characteristic for globe valves, 8 characteristics for opening angle
≤ 1 %
≤ 0.1 %
< 0.5 s for initialization not permissible, adaptation over volume restriction Q
w/x reversible
Independent from supply pressure approx. 110 l
3
At ∆p = 6 bar: 8.5 m /h, at ∆p = 1.4 bar: 3.0 m
n
3
at ∆p = 6 bar: 14.0 m /h, at ∆p = 1.4 bar: 4.5 m
n
–20 to +80 °C in all versions
–45 to +80 °C with metal cable gland
–25 to +80 °C with inductive limit switches (SJ2-S1N) and metal cable gland
Limits in test certificate also apply for explosion-protected devices.
Temperature: ≤ 0.15 %/10 K
Vibration: ≤ 0.25 % up to 2000 Hz and 4 g acc. to IEC 770
Complying with requirements specified in EN 61000-6-2, EN 61000-6-3,
EN 61326-1 and NAMUR Recommendation NE 21
One M20 x 1.5 cable gland for 6 to 12 mm clamping range · Additional sec-
ond M20 x 1.5 threaded hole · Screw terminals for 0.2 to 2.5 mm² wire
cross-section
1
at the maximum
5
/h
n
Supply air: None
3
/h · K = 0.09
n Vmax(20 °C)
3
/h · K = 0.15
n Vmax(20 °C)