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2-wire transmitter isolator

3186
– 1 or 2 channel 2-wire transmitter isolator
– Signal 1:1 functional range 3.5...23 mA
– Low channel voltage drop and fast response time
– Excellent accuracy
– Slimline 6 mm housing

Application
• 1:1 output loop powered isolator of 2-wire transmitter 4...20
mA signals.
• 3186 is an easy mounting DIN rail unit.
• A very competitive choice in terms of both price and
technology for galvanic isolation of 2-wire transmitter signals.
• Provides surge suppression and protects control systems
from transients and noise.
• 3186 eliminates ground loops and can be used for measuring
floating signals.
• The device can be mounted in Safe area or in Zone 2 and Cl.
1 Div 2. area.

Connection

Technical characteristics
• 3186 is powered by the host loop voltage.
• Wide supply range from 6...35 V.
• Low input to output voltage drop typ. 2.5 V.
• Excellent conversion accuracy, better than 0.05% in the range
3.8…20.5 mA.
• Functional range is 3.5...23 mA which means that 3186 is
NAMUR NE43 compliant.
• Inputs and outputs are floating and galvanically separated.
• High galvanic isolation of 2.5 kVAC.
• Fast response time < 5 ms.
• Excellent signal/noise ratio > 60 dB.
Mounting / installation / programming
• DIN rail mounting with up to 330 channels per meter.
• Temperature operation range is from -25...+70°C.

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