Samson TROVIS SAFE 3731-3 Mounting And Operating Instructions page 13

TROVIS SAFE 3731-3 Ex d Positioner (technical data in test certificates additionally apply for explosion-protected
devices)
Filled with
Air output
air
capacity
Vented At ∆p = 6 bar: 14.0 m
Permissible ambient
temperature
Permissible storage
temperature
Influences
EMC
Electrical connections
Explosion protection
Degree of protection
Use in safety-
instrumented systems
(SIL)
Materials Enclosure
External
parts
Weight
Compliance
At ∆p = 6 bar: 8.5 m ³/h · At ∆p = 1.4 bar: 3.0 m
n
³/h · At ∆p = 1.4 bar: 4.5 m
n
–40 to 80 °C
The limits in the test certificate additionally apply.
–60 to 80 °C
Temperature: ≤ 0.2/10 K · Supply air: None
Vibration: ≤ 0.25 % up to 2000 Hz and 4 g acc. to IEC 770
Complying with the requirements of EN 61000-6-2, EN 61000-6-3, EN 61326-1 and
NAMUR Recommendation NE 21
Two threaded connections with ½ NPT thread, optionally with M20 x 1.5
Screw terminals for 2.5 mm² wire cross-section
See table on explosion-protection certificates
IP 66/NEMA 4 X
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 (re-
dundant configuration/HFT = 1).
Die-cast aluminum EN AC-AlSi10Mg(Fe) (EN AC-44300) acc. to DIN EN 1706
chromated and powder paint coating
Stainless steel 1.4301/1.4305/1.4310
Approx. 2.5 kg
Design and principle of operation
³/h · K = 0.09
n Vmax(20° C)
³/h · K = 0.15
n Vmax(20° C)
EB 8387-3S EN
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