12 EB 8384-4 EN
Design and principle of operation
Type 3730-4 Positioner (the listed technical data may be restricted by the limits specified in the test certificate for
explosion-protected devices)
Characteristic Linear/equal percentage/reverse equal percentage · User-defined (over operat
-
ing software and communication) · Butterfly valve linear/equal percentage · Ro
-
tary plug valve linear/equal percentage · Segmented ball valve linear/equal per
-
centage
Deviation from terminal-based conformity
≤
1 %
Hysteresis
≤
0.3 %
Sensitivity
≤
0.1 %
Direction of action Reversible
Air consumption Independent from supply pressure < 110 l
n
/h
Air output capacity
To the actuator with air
To the vent actuator
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 for all versions
–45 to +80 °C with metal cable gland
The listed temperature limits may be restricted by the limits specified in the test
certificate for explosion-protected devices.
Influ-
ences
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
Electrical connection One M20 x 1.5 cable gland, for clamping range 6 to 12 mm · Second additional
threaded M20 x 1.5 hole · Screw terminals for 0.2 to 2.5 mm² wire cross-section
Degree of protection IP 66/NEMA 4X
Use in safety-instrumented
systems (SIL)
Observing the requirements of IEC 61508, the systematic capability of the pilot
valve for emergency venting as a component in safety-instrumented systems is
given.
Use is possible on observing the requirements of IEC 61511 and the required
hardware fault tolerance in safety-instrumented systems up to SIL 2 (single de
-
vice/HFT = 0) and SIL 3 (redundant configuration/HFT = 1).
Binary input 1
Input 0 to 30 V DC, reverse polarity protection, static destruction limit 40 V/5.8 mA,
current consumption 3.5 mA at 24 V, galvanically isolated
Signal Signal '1' at Ue > 5 V · Signal '0' at Ue < 3 V
Materials
Housing Die-cast aluminum EN-AC-AlSi12(Fe) (EN AC-44300) acc. to DIN EN 1706
Chromated and powder paint coated · Special version: stainless steel 1.4581
External parts Stainless steel 1.4571 and 1.4301
Cable gland Black polyamide, M20x1.5
Weight Approx. 1.0 kg · Stainless steel version: 2.2 kg
Compliance
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