Samson 3724, Монтаж и эксплуатация

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12 EB 8395 EN
Design and principle of operation
3.1 Technical data
Table 1: General technical data
Positioner
Attachment Type 3379 piston Ø: 63 mm · Effective area: 31 cm²
Type 3379 piston Ø: 90 mm · Effective area: 63 cm²
Travel 4 to 16 mm, adjustable in steps of 0.5 mm
Reference variable w
(reverse polarity protection)
4 to 20 mA signal range · Two-wire device
Split-range operation 4 to 11.9 mA and 12.1 to 20 mA
Static destruction limit ±32 V
Minimum current 3.8 mA
Load impedance Max. 6.3 V
Supply air
Air quality acc. to
ISO 8573-1
Supply air: 1.4 to 7 bar (20 to 105 psi)
Max. particle size and density: Class 4 · Oil content: Class 3 · Pressure
dew point: Class 3 or at least 10 K below the lowest ambient
temperature to be expected
Signal pressure (output) 0 bar up to the supply pressure minus 0.4 bar
Can be limited to approx. 2.3 bar by software
Characteristic Three selectable characteristics:
Linear · Equal percentage · Reverse equal percentage
Transit time Only for actuators with initialization time > 0.4 s 1)
Direction of action w/x reversible
Perm. ambient temperature –20 to +80 °C
Electromagnetic
compatibility
Complying with EN 61000-6-2, EN 61000-6-3 and NAMUR
Recommendation NE 21
Degree of protection IP 65 2) (only applies in combination with Type 3379 Pneumatic
Actuator)
Compliance
Materials
Housing 1.4409
Cover 1.4404
Dome (visual indicator) Polycarbonate
Weight (without actuator) Approx. 1.2 kg
1)
For faster actuators, a volume restriction must be used. Otherwise, the initialization cannot be
performed successfully.
2)
Pending