Samson TROVIS 3730-1 - 3.7 Technical data

EB 8484-1 EN 23
Design and principle of operation
3.7 Technical data
Table11: TROVIS3730-1 Electropneumatic Positioner
Travel
Adjustable travel for
Direct attachment to Type 3277: 3.5to30mm
AttachmentaccordingtoIEC60534-6(NAMUR): 3.5to300mm
AttachmentaccordingtoVDI/VDE3847 3.5to300mm
Attachment to rotary actuators: 24to100°
Travel range Adjustablewithintheinitializedtravel/angleofrotationofthevalve;travel
canberestrictedto1/5atthemaximum.
Set point w
Signal range 4to20mA·Two-wiredevice,reversepolarityprotection
Split-rangeoperation:4to11.9mAand12.1to20mA
Static destruction limit ±33V
Minimum current 3.6mAfordisplay·3.8mAforoperation
Load impedance Noexplosionprotection:≤6.6V(correspondingto330Ωat20mA)
Explosionprotection:≤7.3V(correspondingto365Ωat20mA)
Supply air
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 low-
est ambient temperature to be expected
Signal pressure (output) 0baruptothesupplypressure·Canbelimitedto2.4bar±0.2barby
software
Hysteresis ≤0.3%
Sensitivity ≤0.1%
Characteristic Linear/equalpercentage/reverseequalpercentage/SAMSONbuttery
valve/VETECrotaryplugvalve/segmentedballvalve
Direction of action Reversible
Air consumption, steady
state
Independentofsupplyairapprox.65l
n
/h
Airoutputcapacity(when∆p=6bar)
Tollactuatorwithair 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 14.0 m
n
³/h·AtΔp=1.4bar:4.5m
n
³/h·K
Vmax(20°C)
=0.15