Samson 3730-4, Original Instructions Manual

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14 EB 8384-4 EN
Design and principle of operation
Type 3730-4 Positioner with PROFIBUS-PA communication
The technical data for the explosion-protected devices may be restricted by the limits specified in the test
certificates.
Materials
Housing
Die-cast aluminum EN AC-AlSi12(Fe) (EN AC-44300) acc. to DIN EN 1706
Chromated and powder paint coated · Special version: stainless steel 1.4581
External parts Stainless steel 1.4404/316L
Cable gland M20 x 1.5, black polyamide
Weight Approx. 1.0 kg · Special version in stainless steel: 2.2 kg
Options for Type 3730-4
Binary input BI2 for floating contact
Switching input
R < 100 Ω · Contact load 100 mA · Static destruction limit 20 V/5.8 mA · Galvanic
isolation
Solenoid valve · Approval acc. to IEC 61508/SIL
Input
24 V DC · Maximum 40 V · Reverse polarity protection · Static destruction limit 40 V
Power consumption:I =
U – 5.7 V (corresponding to 4.8 mA at
24 V/114 mW)
3840 Ω
Signal
Signal ‘0’ no pick-up < 12 V · Signal ‘1’ safe pick-up > 19 V
(emergency venting at 0 V)
Service life > 5 x 10 6 switching cycles
K
V
coefficient 0.15
Inductive limit switch by
Fuchs
For connection to switching amplifier acc. to EN 60947-5-6
SJ2-SN proximity switch Measuring plate not detected: ≥ 3 mA · Measuring plate detected: ≤ 1 mA
External position sensor
Valve travel Same as positioner
Cable
10 m · Flexible and durable · With M12x1 connector · Flame-retardant acc. to
VDE 0472 · Resistant to oils, lubricants and coolants as well as other aggressive media
Permissible ambient
temperature
–40 to +90 °C with a fixed connection between positioner and position sensor · The
limits in the test certificate additionally apply for explosion-protected versions.
Immunity to vibration Up to 10 g in the range of 10 Hz to 2 kHz
Degree of protection IP 67