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 6.1 mm housing
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
- 3186.pdf
- Latest version
Manuals
- 3186V103_UK.pdf
- 3186V102_UK.pdf
- 3186V101_UK.pdf
- 3186V100_UK.pdf
- Previous versions
- Latest version
Manuals in Russian
- 3186V103_RU.pdf
- 3186V102_RU.pdf
- 3186V101_RU.pdf
- 3186V100_RU.pdf
- Previous versions
- Latest version
Approvals & Certificates
ATEX certificate
- 3186_issue12.pdf
- Latest version
IECEx certificate
- 3186IEC_issue 11.pdf
- Latest version
UKEX certificate
- 3186UKEX_Issue1.pdf
- Latest version
CCC certificate
- 3000_series_CCC_2023_04.pdf
- 3000_series_CCC_2020_12.pdf
- Previous versions
- Latest version
FM certificate
- 3xxx_FM17CA0003X_US0004X.pdf
- 3xxx_FM_3041043_C.pdf
- Previous versions
- Latest version
UL certificate
- 3185_3186_UL.pdf
- Latest version
DNV marine certificate
- DNV_3xxx_TAA00001RW.pdf
- Latest version
EAC declaration
- EAC_EMC_declaration_Ex_3000_5000_6000_9000.pdf
- Latest version
EAC Ex certificate
- EAC_Ex.pdf
- Latest version
Metrology Pattern Approval (MPA), Russia
- MPA_Russia.pdf
- Latest version
Supplementary documentation
EU Declaration of Conformity
- 3186DoC_EU_105_UK.pdf
- 3186DoC_EU_104_UK.pdf
- 3186DoC_EU_103_UK.pdf
- 3186DoC_EU_102_UK.pdf
- 3186DoC_EU_101_UK.pdf
- 3186DoC_EU_100_UK.pdf
- Previous versions
- Latest version
UKCA Declaration of Conformity
- 3186DoC_UKCA_100_UK.pdf
- Latest version
EMC data
- 3000_EMC_data.pdf
- Latest version
Safety note
Safety note
Order form
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 & UK SI 2016/1091 |
LVD | 2014/35/EU & UK SI 2016/1101 |
ATEX | 2014/34/EU & UK SI 2016/1107 |
RoHS | 2011/65/EU & UK SI 2012/3032 |
EAC | TR-CU 020/2011 |
EAC Ex | TR-CU 012/2011 |
Approvals
ATEX | KEMA 10ATEX0147 X |
IECEx | KEM 10.0068X |
UKEX | DEKRA 21UKEX0055X |
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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