Samson 3730 Series Mounting And Operating Instructions page 23

Type 3730-4 Positioner with PROFIBUS-PA communication
The technical data for the explosion-protected devices may be restricted by the limits specified in the test certifi-
cates.
Sensitivity
Direction of action
Air consumption
Actuator
(supply)
Air output
capacity
Actuator
(exhaust)
Permissible ambient
temperature
Temperature
Influences Supply air
Effect of vibration
EMC
Explosion protection
Electrical connections
Degree of protection
Use in safety-instrumented
systems (SIL)
Emergency venting at 0 V set
point and using optional
solenoid valve
Conformity
Binary input BI1
Input
Signal
Materials
Housing
External parts
EB 8384-4 EN
≤0.1 %
Reversible
Independent of supply air approx. < 110 l
At Δp = 6 bar: 8.5 m ³/h · At Δp = 1.4 bar: 3.0 m
n
At Δp = 6 bar: 14.0 m ³/h · At Δp = 1.4 bar: 4.5 m
n
–20 to +80 °C for all versions
–45 to +80 °C with metal cable gland
The temperature limits for the explosion-protected devices may be restricted by
the limits specified in the test certificates.
≤0.15 %/10 K
None
≤ 0.25 % up to 2 kHz and 4 g according to IEC 770
Complying with EN 61000-6-2, EN 61000-6-3, EN 61326-1 and NAMUR Recom-
mendation NE 21
Refer to Table 3-3
One M20x1.5 cable gland for 6 to 12 mm clamping range · Second M20x1.5
threaded connection additionally exists · Screw terminals for 0.2 to 2.5 mm² wire
cross-sections
IP 66/NEMA 4X
Observing the requirements of IEC 61508, the systematic capability of the pilot
valve for emergency venting as a component in safety-instrumented systems is giv-
en.
Use is possible on observing the requirements of IEC 61511 and the required hard-
ware fault tolerance in safety-instrumented systems up to SIL 2 (single device/
HFT = 0) and SIL 3 (redundant configuration/HFT = 1).
·
0 to 30 V DC with reverse polarity protection · Static destruction limit 40 V/5.8 mA
· Current consumption 3.5 mA at 24 V, galvanic isolation
Signal '1' at U > 5 V · Signal '0' at U
e
Die-cast aluminum EN AC-AlSi12(Fe) (EN AC-44300) acc. to DIN EN 1706, chro-
mate and powder coating · Special version: stainless steel 1.4408
Stainless steel 1.4404/316L
Design and principle of operation
/h
n
³/h · K
n Vmax(20 °C)
³/h · K
n Vmax (20 °C)
< 3 V
e
= 0.09
= 0.15
3-5