3186
 

2-wire transmitter isolator / current isolator

 

3186

 

  • 1 or 2 channel 2-wire transmitter isolator / current isolator
  • 1:1 conversion in the range 3.5...23 mA
  • Low channel voltage drop and fast response time < 5 ms
  • Excellent accuracy, better than 0.05%
  • Slimline 6 mm housing
  1. Overview + -

  2. Technical details + -

  3. Accessories + -


Application

  • 3186A is a 1:1 output loop-powered 2-wire transmitter isolator that excites and measures passive input signals.
  • 3186B is a 1:1 output loop-powered 2-wire current isolator that measures active input signals.
  • A very competitive choice in terms of both price and technology for galvanic isolation.
  • 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.

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 (3186A).
  • Low input drop ≤ 3 V (3186B), even when no loop power is applied to the output terminals.
  • Excellent conversion accuracy, better than 0.05% in the range 3.8…20.5 mA.
  • Signal 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

  • DIN rail mounting with up to 330 channels per meter.
  • Extended operating temperature range from -25...+70°C.

Data sheet & Manuals


Data sheet

Manuals

Manuals in Russian

Approvals & Certificates


ATEX certificate

IECEx certificate

CCC certificate

FM certificate

UL certificate

DNV marine certificate

EAC declaration

EAC Ex certificate

Metrology Pattern Approval (MPA)

Supplementary documentation


EU Declaration of Conformity

EMC data

Environmental Conditions

Operating temperature -25°C to +70°C
Storage temperature -40°C to +85°C
Calibration temperature 20...28°C
Relative humidity < 95% RH (non-cond.)
Protection degree IP20
Installation in Pollution degree 2 & meas. / overvoltage cat. II

Mechanical specifications

Dimensions (HxWxD) 113 x 6.1 x 115 mm
Weight approx. 70 g
DIN rail type DIN EN 60715/35 mm
Wire size 0.13...2.5 mm2 / AWG 26...12 stranded wire
Screw terminal torque 0.5 Nm
Vibration IEC 60068-2-6
2...25 Hz ±1.6 mm
25...100 Hz ±4 g

Common specifications

Supply

Supply voltage 6...35 VDC
Power dissipation, per channel 50 mW (3186A) Vterminal x I (3186B)

Isolation voltage

Isolation voltage, test / working 2.5 kVAC / 300 VAC (reinforced)
Zone 2 / Div. 2 250 VAC

Response time

Response time (0...90%, 100...10%) < 5 ms
Signal / noise ratio > 60 dB
Signal dynamics, input Analog signal chain
Signal dynamics, output Analog signal chain
Accuracy Better than 0.05%
Cut-off frequency (3 dB) 100 Hz
EMC immunity influence < ±0.5% of span
Extended EMC immunity: NAMUR NE21, A criterion, burst < ±1% of span

Input specifications

Current input

Measurement range 3.5...23 mA
Input to output voltage drop, typ. 2.5 V (3186A)
Input voltage drop typ.: Supplied and non-supplied unit ≤ 3 V (3186B)
2-wire transmitter supply 3.5...32.5 V
Signal conversion 1:1

Output specifications

Current output

Signal range 3.5...23 mA
Signal range, input to output 3.8...20.5 mA
Output loop current limitation, typ. 24 mA
Current output overload, max. 50 mA

I.S. / Ex marking

ATEX II 3 G Ex ec IIC T4 Gc
IECEx Ex ec IIC T4 Gc
FM, US Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, AEx nA IIC T4
FM, CA Cl. I, Div. 2, Gp. A, B, C, D T4 or Cl. I, Zone 2, Ex nA IIC T4
EAC Ex 2Ex nA IIC T4 Gc X

Observed authority requirements

EMC 2014/30/EU
LVD 2014/35/EU
ATEX 2014/34/EU
RoHS 2011/65/EU
EAC TR-CU 020/2011
EAC Ex TR-CU 012/2011

Approvals

ATEX KEMA 10ATEX0147 X
IECEx KEM 10.0068X
c FM us FM17US0004X / FM17CA0003X
c UL us, UL 61010-1 E314307
CCC 2020322310003554
EAC Ex RU C-DK.HA65.B.00355/19
DNV Marine TAA00001RW
 

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