Description
Samson 3731-3 Electropneumatic Positioner | Hart
- Manufacturer : SAMSON
- Product no : 3731-3
- Product type : Electropneumatic Positioner Hart
- Operation:Linear or rotary
- Travel/Rotation:200mm or 100°
- Display:Alphanumeric LCD
Samson 3731-3 Electropneumatic Positioner set the standard with their wide variety of features and functions as well as their innovative details. These include safe and fast integral attachment, convenient one-knob operation, automatic start-up and tuning of parameters, and extensive valve diagnostics…more. Full function parameterization includes characterizing the reference variable, travel range, characteristic (i.e. linear and equal percentage), and performance characteristics (i.e. PID control coefficients).
Samson 3731-3 Electropneumatic Positioner Features:
- Positioner comes with premier control performance & diagnostic functionality standard.
- Low steady state air consumption less than 0.06 scfm at all supply pressures
- Unit will attach to both linear and rotary actuators, independent of Fail Safe Action or Moving Direction, and allows for the display to rotate 180.
- One positioner can handle both Control and On/Off applications.
- Explosion proof enclosure allows for local configuration even in the hazardous environment.
Samson 3731-3 Electropneumatic Positioner Specification:
Type 3731-3 Positioner
Rated travel, adjustable Direct attachment to Type 3277: 3.6 to 30 mm
Attachment according to IEC 60534-6-1: 3.6 to 200 mm
Attachment to rotary actuators: 24 to 100° opening angle
Travel range adjustable Within the initialized travel/angle of rotation; restricted to 1/5 at the maximum
Signal range 4 to 20 mA · Two-wire device, polarity insensitive · Minimum span 4 mA
Static destruct. limit 40 V · Internal current limit 60 mA
Minimum current 3.6 mA for LCD · 3.8 mA for operation
Load impedance ≤ 9 V corresponding to 450 Ω at 20 mA
Communication
Local communication SAMSON SSP interface and serial interface adapter
Software requirements (SSP) TROVIS-VIEW with database module 3731-3
HART® communication HART® Field Communication protocol
Impedance in HART® frequency range: Receiving approx. 455 Ω, sending approx. 185 Ω
Max. particle size and density: Class 4 · Oil content: Class 3
Pressure dew point: Class 3 or at least 10 K below the lowest expected ambient temperature
Signal pressure (output) 0 bar up to capacity of supply pressure ·
Can be limited by software to 1.4 bar/2.4 bar/3.7 bar ± 0.2 bar
For complete datasheet: TSP Controls – Samson 3731-3 datasheet
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