Samson 3767 - Technical Data

3-4 EB 8355-2 EN
Design and principle of operation
3.1 Technical data
Positioner
Travel range, adjustable
Directattachment:7.5to30mm
AttachmentaccordingtoIEC60534-6:7.5to120mmor
Opening angle 30°to90°dependingonthecamdisk
Set point
Signal range 0/4to20mA 1 to 5 mA
Span 8to20mA 2 to 4 mA
Coil resistance R
i
at20°C 200Ω 880Ω
Supply
Supply air 1.4to6bar(20to90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 p
st
(output) Canbelimitedbetweenapprox.2.5to6.0bar(38to90psi)
Characteristic Linear characteristic, deviation from terminal-based conformity ≤1%
Hysteresis ≤0.6%
Sensitivity ≤0.1%
Direction of action Reversible
Proportional band Xp <1to2.5%(proportional-actioncoefcientK
p
:>100to40)
Air consumption At1.4barsupplypressure:
≤280l
n
/h
At6barsupplypressure:≤280l
n
/h
With lowest setting of pressure regulator
Air output
capacity
Actuator (supply) 3.0m
n
³/h·K
Vmax(20°C)
= 0.09 8.5m
n
³/h·K
Vmax(20°C)
= 0.09
Actuator (exhaust) 4.5m
n
³/h·K
Vmax(20°C)
= 0.15 14.0m
n
³/h·K
Vmax(20°C)
= 0.15
Permissible ambient temperature –20to80°Cwithplasticcablegland
–40to80°Cwithmetalcablegland(specialversiondownto–45°C)
–20to70°Cwithpositiontransmitter
Seetestcerticatesintheappendixforexplosion-protecteddevices
Inuences Temperature:≤0.3%/10K
Supplyair:≤1%between1.4and6bar
Vibration:Nonebetween10and150Hzand4g
Explosion protection SeetestcerticateintheappendixfortypeofprotectionExiaIICT6
Degree of protection IP54/IP65andNEMA4Xpossiblebyttingaltercheckvalve(seetableon
accessoriesonpage )
Electromagnetic compatibility ComplyingwithEN61000-6-2,EN61000-6-3andNAMURRecommendation
NE21
Conformity
·
Weight Approx.1kg