Samson 3730-2, Mounting And Operating Instructions

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EB 8384-2 EN 15
Design and principle of operation
Type 3730-2 Positioner
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 1.4571 and 1.4301
Cable gland M20 x 1.5, black polyamide
Weight
Die-cast aluminum housing: approx. 1.0 kg
Stainless steel housing: approx. 2.2 kg
Compliance
·
Options for Type 3730-2 Positioner
Solenoid valve · Approval according to IEC 61508/SIL
Input
24 V DC · Reverse polarity protection · Static destruction limit 40 V
Current consumption I =
U – 5.7 V
3840 Ω
(corresponding to 4.8 mA at
24 V/114 mW)
Signal '0' (no response) <12 V (emergency shutdown at 0 V)
Signal '1' (response) > 19 V
Service life >5 x 10
6
switching cycles
K
V
coefficient 0.15
Analog position transmitter Two-wire transmitter
Auxiliary power 12 to 30 V DC · Reverse polarity protection · Static destruction limit 40 V
Output signal 4 to 20 mA
Operating direction Reversible
Operating range –10 to +114 %
Characteristic Linear
Hysteresis Same as positioner
High-frequency influence Same as positioner
Other influences Same as positioner
Fault alarm Can be issued as current signal 2.4 ±0.1 mA or 21.6 ±0.1 mA
Inductive limit switch by Fuchs
For connection to switching amplifier according to EN 60947-5-6. Can be used in combination with a software limit
switch
SJ2-SN proximity switch Measuring plate not detected: ≥3 mA · Measuring plate detected: ≤1 mA
SJ2-S1N proximity switch Measuring plate not detected: ≤1 mA · Measuring plate detected: ≥3 mA