Samson 3767 - Additional Equipment

EB8355-2EN 11
Designandprincipleofoperation
2.3 Additionalequipment
Inductivelimitcontacts
Two proximity switches SJ2-SN
Control circuit Values according to downstream transistor relay
Hysteresis at rated travel ≤1%
Solenoidvalve
Input Binary DC voltage signal
Nominal signal 6VDC 12VDC 24VDC
Signal'0'(noresponse)
DCsignalat–25°C
≤1.2V ≤2.4V ≤4.7V
Signal'1'(response)
DCsignalat80°C
≥5.4V ≥9.6V ≥18V
Maximumpermissiblesignal 28V 25V 32V
Coil resistance R
i
at20°C 2909Ω 5832Ω 11714Ω
Air consumption in steady state In addition to that of the positioner: OFF ≤60l
n
/h · ON ≤10l
n
/h
Closing time for
Rated travel and
signal pressure
range
(K
VS
=0.14)
Type3277
Actuator
120cm² 240cm² 350/355cm² 700cm²
0.2to1bar
≤0.5s
≤1s ≤1.5s ≤4s
0.4to2bar ≤2s ≤2.5s ≤8s
0.6to3bar ≤1s ≤1.5s ≤5s
Positiontransmitter
1),2)
– Outputcircuit,intrinsicallysafe
Output signal Two-wireconnection4to20mA,reversibleoperatingdirection
Auxiliary power Minimumterminalvoltage:12VDC
max.45VDC
Only with intrinsically safe circuit
Characteristic Linear characteristic
Deviationfromcharacteristicaccordingtoterminalpointmethod:≤1%
Hysteresis ≤0.6%
Response ≤0.1%
Inuenceofpowersupply ≤1%whenvoltagechangesoccurwithinthespeciedlimits
High-frequencyinuence ≤0.1%,f=150MHz,1Wpoweroutputatadistanceof0.5m
Loadinuence ≤0.1%
Permissibleambienttemperature
–20to70°C
–20 to
à See test certicate
Ambienttemperatureinuence ≤0.4%onlowermeasuringrangevalue,≤0.2%onmeasuringspan
Ripple of output signal ≤0.3%
1)
Databasedonstandardspring(15mmtravelwithType3277Actuator)andgainof100.
2)
AvailableuntilMarch2011