Samson 4785, Монтаж и эксплуатация

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Technical data
Positioner
Rated travel
Direct attachment to Type 3277
Attachment acc. to IEC 60534-6
(NA MUR)
Adjustable
7.5 to 30 mm
7.5 to 120 mm
Or 30° to 120° for rotary actuators
Bus connection Fieldbus interface according to IEC 61158-2
Field unit according to FISCO ( F ieldbus I ntrinsically S afe CO ncept)
Permissible operating voltage 9 to 32 V DC , supplied by bus connection
Static destruction limit 35 V
Maximum operating voltage 10 mA
Current in case of fault 0 mA
Supply air Supply air 1.4 to 6 bar (20 to 90 psi) A ir quality according to ISO 8573-1:
Max. particle size and density: Class 2, Oil concentration: Class 3.
The pressure dew point must be 10 °C below the lowest ambient temperature
value to be expected
Signal pressure (output) 0 bar to supply air pressure
Characteristic, adjustable Linear, equal percentage, reverse equal percentage, freely programmable
Deviation from characteristic
≤
1 %
Dead band
(based on rated travel/nom. angle)
Adjustable from 0.1 to 10.0 % , default 0.5 %
Resolution <0.05 % (internal measurement)
Transit time Up to 240 sec, separately adjustable for exhaust and supply air
Operating direction Reversible, adjustable using software
Air consumption Independent of supply air <90l /h
Air supply Actuator filled: at ∆ p = 6 bar 9.3 m /h, at ∆ p = 1.4 bar 3.5 m /h
Actuator vented: at
∆
p = 6 bar 15.5 m /h, at
∆
p = 1.4 bar 5.8 m /h
Permissible ambient temperature –40 to 80 °C; the values of the EC Type Examination Certificate apply
additionally for explosion-proof devices
Effects Temperature:
≤
0.15 %/10 K, auxiliary power: none,
Vibration: none up to 250 Hz and 4 g
Explosion protection II 2 G EEx ia IIC T6 according to ATEX, see type examination certificate
Degree of protection IP 65 achieved by enclosed filter check valve
Electromagnetic compatibility Complies with requirements as in EN 50081/50082
Binary input Internal power supply 5 V DC, R = 100 k
Ω
For signaling function, e.g. connection of a pressure switch
Forced venting,
to be activated via switch inside the
positioner
Input: 6 to 24 V DC, static destruction limit 45 V, R approx. 6 k Ω at 24 V DC
(depending on voltage), switching point 1- signal at
≥
3V, 0- signal only at 0 V,
Kv value 0.17
8
EB 8382-2 EN