Samson 3730 Series, Монтаж и эксплуатация

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3.1 Technical data
10
EB 8384-1 EN
Design and principle of operation
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 or 24° to 100° with rotary
actuators
Travel range
Adjustable within the initialized travel/angle of rotation;
travel can be restricted to
1
5
at the maximum
Reference variable w
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.
Minimum current 3.7 mA
Load impedance
≤
6 V (corresponding to 300
Ω
at 20 mA)
Supply air
Air quality acc.
to ISO 8573-1
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
Signal pressure (output) 0 bar up to supply pressure, limitable to approx. 2.4 bar via software
Characteristic Optionally 1 characteristic for globe valves, 8 characteristics for opening angle
Hysteresis
≤
1 %
Sensitivity
≤
0.1 %
Transit time < 0.5 s for initialization not permissible, adaptation over volume restriction Q
Direction of action w/x reversible
Air consumption, steady state Independent from supply pressure approx. 110 l
n
/h
Air output capacity
Actuator filled with air
Actuator vented At
∆
p = 6 bar: 8.5 m
n
3
/h, at
∆
p = 1.4 bar: 3.0 m
n
3
/h · K
Vmax(20 °C)
= 0.09
at
∆
p = 6 bar: 14.0 m
n
3 /h, at
∆
p = 1.4 bar: 4.5 m
n
3 /h · K
Vmax(20 °C)
= 0.15
Permissible ambient
temperature
–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.
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 specified in EN 61000-6-2, EN 61000-6-3,
EN 61326-1 and NAMUR Recommendation NE 21
Electrical connections
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