Samson 3766 - Technical Data

10 EB 8355-1 EN
Design and principle of operation
2.2 Technical data
Type3766 Positioner
Travel range 7.5to30mm DirectattachmenttoType3277Actuator
7.5to120mm Attachmentacc.toIEC60534(NAMUR)
Opening angle 70°,75°or90°dependingonthecamdisk
Reference
variable w
Signal range 0.2to1bar(3to15psi)
Span 0.4to0.8bar(6to12psi)
Overloadable Max. 2bar(29psi)
Supply air 1.4to6bar(20to90psi)
Air quality acc. to
ISO8573-1,
edition 2001-02
Maximum 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:
0toapprox.2.5barand0to6bar(0toapprox.35psiand0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 0.5to2.5%(proportional-actioncoefcientKp:>200to40)
Air consumption At1.4barsupplypressure At6barsupplypressure
≤230I
n
/h ≤230I
n
/h
1)
Air output
capacity
Tollactuatorwithair 3.0m
n
³/h·K
Vmax(20°C)
= 0.09 8.5m
n
³/h·K
Vmax(20°C)
= 0.09
To vent actuator 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
2)
Standard –20to80°C: Optional limit contacts/solenoid valve/position
transmitter with plastic cable gland
–40to80°C: Optional limit contacts/solenoid valve with metal
cable gland
Low-temperature
version
–50to80°C: Optional limit contacts/solenoid valve with metal
cable gland
Technicaldataintestcerticatesadditionallyapplytoexplosion-
protected devices
Inuence Temperature:≤0.3%/10K
Supplyair:≤1%between1.4and6bar
Electromagnetic compatibility AccordingtoEN61000-6-2,EN61000-6-3andNAMUR
RecommendationNE21