Samson 3730-4 - Page 13

EB 8384-4 EN 13
Design and principle of operation
Type3730-4 Positioner with PROFIBUS-PA communication
The technical data for the explosion-protected devices may be restricted by the limits specied in the test
certicates.
Direction of action Reversible
Air consumption Independent of supply air approx. < 110 l
n
/h
Air output
capacity
to ll the actuator
with air
At Δp = 6 bar: 8.5 m
n
³/h · At Δp = 1.4 bar: 3.0 m
n
³/h · K
Vmax(20 °C)
= 0.09
to vent the
actuator
At Δp = 6 bar: 14.0 m
n
³/h · At Δp = 1.4 bar: 4.5 m
n
³/h · KV
max(20 °C)
= 0.15
Permissible ambient
temperature
–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 specied in the test certicates.
Inuences
Temperature ≤0.15 %/10K
Supply air None
Effect of vibration ≤ 0.25% up to 2kHz and 4g according to IEC770
EMC
Complying with EN 61000-6-2, EN 61000-6-3, EN 61326-1 and NAMUR
Recommendation NE 21
Explosion protection See Summary of explosion protection approvals on page15.
Electrical connections
One M20x1.5 cable gland for 6 to 12mm clamping range · Second M20x1.5
threaded connection additionally exists · Screw terminals for 0.2 to 2.5mm² wire
cross-sections
Degree of protection IP66/NEMA4X
Use in safety-instrumented
systems (SIL)
Emergency venting at 0V set
point and using optional sole-
noid valve
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 device/
HFT=0) and SIL3 (redundant conguration/HFT=1).
Compliance
·
Binary input BI1
Input
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 Signal ‘1’ at U
e
> 5V · Signal ‘0’ at U
e
< 3V