Samson 3785 series, Монтаж и эксплуатация

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Technical data
Positioner
Rated travel
Direct attachment Type 3277
Attachment acc. to IEC 605347-6
(NAMUR) Adjustable
7.5 to 30mm
7.5 to 120 mm
or 30° to 120° for rotary actuators
Bus connection Fieldbus interface according to IEC 61158-2
Field device according to FISCO (
F ieldbus i ntrinsically s afe co ncept)
Permissible operating voltage 9 to 32 V DC
1)
, power supply via the bus cable
Static destruction 35 V
Max. operating current 10 mA
Current in case of fault 0 mA
Auxiliary power Supply air from 1.4 to 6 bar (20 to 90 psi); air quality acc. to ISO 8573-1:
Max. size and density of particles: Class 2; oil quantity: Class 3,
the pressure dew point must be 10 °C below the lowest ambient temperature to
be expected.
Signal pressure (output) 0 bar to pressure of supply air
Adjustable characteristic Linear, equal percentage, reverse equal percentage, user programmable
Deviation from characteristic
≤
1 %
Dead band
(based on rated travel/angle) Adjustable from 0.1 to 10.0 % , default 0.5 %
Resolution <0.05 % (internal measurement)
Transit time Up to 240 s, separately adjustable for exhaust and supply air
Moving direction Reversible, adjustment via software
Air consumption Independent of supply air <90l
n
/h
Air supply Actuator filled: for
∆
p = 6 bar 9.3 m
n
3
/h, for
∆
p = 1.4 bar 3.5 m
n
3
/h
Actuator vented: for
∆
p = 6 bar 15.5 m
n
3
/h, for
∆
p = 1.4 bar 5.8 m
n
3
/h
Permissible ambient temperature –40 to 80 °C ; the specifications in the EC-type examination certificate
additionally apply for explosion-protected devices
Effects Temperature:
≤
0.15 %/10 K, auxiliary power: none,
Vibrations: none up to 250 Hz and 4 g
Explosion protection II 2 G EEx ia IIC T6 according to ATEX, see EC- type examination certificate
Degree of protection IP 65 by using the filter check valve included
Electromagnetic compatibility Requirements acc. to EN 50081/50082 are met
Binary input Internal power supply 5 V DC, R
i
= 100 k
Ω
for signaling function, e.g. connection of a pressure switch
Forced venting,
activated over switch inside the
positioner Input: 6 to 24 V DC, static destruction limit 45 V, R
i
approx. 6 k
Ω
at 24 VDC
(voltage dependent, switching point 1 - signal at
≤
3 V, 0 signal only at 0 V,
Kv value 0.17
6
EB 8382-1 EN