Samson 3730-1 - Technical Data Specifications

22 EB 8384-1 EN
Design and principle of operation
3.5 Technical data
Table12: Type3730-1 Electropneumatic Positioner
Type3730-1Positioner
The technical data for the explosion-protected devices may be restricted by the limits specied in the test
certicates.
Rated travel Adjustable
Direct attachment to Type 3277: 3.6to 30mm
Attachment according to IEC 60534-6: 3.6to200mm
Attachment to rotary actuators: 24to100°openingangle
Travel range
Adjustable within the initialized travel/angle of rotation
Travel can be restricted to 1/5 at the maximum
Set point w
Signal range 4 to 20 mA · Two-wire device with reverse polarity protection
Split-rangeoperation4to11.9mAand12.1to20mA,staticdestructionlimit
100mA
Minimum current 3.7mA
Load impedance ≤6V(correspondingto300Ωat20mA)
Supply air 1.4 to 7 bar (20 to 105 psi)
Air quality acc. to
ISO8573-1
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·Canbelimitedtoapprox.2.4barbysoftware
Characteristic Adjustable
Linear/equal percentage/reverse equal percentage
Butteryvalve,rotaryplugvalveandsegmentedballvalve:Linear/equalpercentage
Hysteresis ≤1%
Sensitivity ≤0.1%
Direction of action w/x reversible
Air consumption, steady state Independentfromsupplypressureapprox.110l
n
/h
Air output capacity
Tollactuatorwithair AtΔp=6bar:8.5m
n
³/h · AtΔp=1.4bar:3.0m
n
³/h · K
Vmax(20°C)
=0.09
To vent actuator AtΔp=6bar:14.0m
n
³/h · AtΔp=1.4bar:4.5m
n
³/h · K
Vmax(20°C)
=0.15
Permissible
ambient temperature
–20to+80°Cforallversions
–45to+80°Cwithmetalcablegland
The temperature limits for the explosion-protected devices may be restricted by the
limits specied in the test certicates.
Inuences
Temperature: ≤0.15%/10K
Supply air: None
Effect of vibration: ≤0.25%of15to1500Hzand4gaccordingtoIEC770