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Temperature Converter HiC2081

  • 1-channel isolated barrier
  • 24 V DC supply (bus powered)
  • Thermocouple, RTD, potentiometer or voltage input
  • Linearized output 4 mA ... 20 mA, sink/source
  • Sensor breakage detection
  • Configurable by PACTware
  • Line fault detection (LFD)
  • Up to SIL 2 acc. to IEC/EN 61508

Please note: All product-related documents, such as certificates, declarations of conformity, etc., which were issued prior to the conversion under the name Pepperl+Fuchs GmbH or Pepperl+Fuchs AG, also apply to Pepperl+Fuchs SE.

Download the complete datasheet as a PDF:

Datasheet excerpt: Technical data of  HiC2081

General specifications
Signal typeAnalog input
Functional safety related parameters
Safety Integrity Level (SIL)SIL 2
ConnectionSL1: 1a, 1b(-); 2a, 2b(+)
Rated voltage20 ... 30 V DC bus powered via Termination Board
Ripplewithin the supply tolerance
Power dissipation≤ 0.98 W
Power consumptionmax. 0.98 W
Programming interfaceprogramming socket
Connection sidefield side
ConnectionSL2: 5a(+), 1a(+), 1b(-), 5b(-)
RTDtype Pt10, Pt50, Pt100, Pt500, Pt1000 (EN 60751: 1995)
type Pt10GOST, Pt50GOST, Pt100GOST, Pt500GOST, Pt1000GOST (6651-94)
type Cu10, Cu50, Cu100 (P50353-92)
type Ni100 (DIN 43760)
Measuring currentapprox. 200 µA with RTD
Types of measuring2-, 3-, 4-wire connection
Lead resistancemax. 50 Ω per line
Measurement loop monitoringsensor breakage, sensor short-circuit
Thermocouplestype B, E, J, K, N, R, S, T (IEC 584-1: 1995)
type L (DIN 43710: 1985)
type TXK, TXKH, TXA (P8.585-2001)
Cold junction compensationexternal and internal
Measurement loop monitoringsensor breakage
Potentiometer0 ... 20 kΩ (2-wire connection), 0.8 ... 20 kΩ (3-wire connection)
Types of measuring3-wire connection
Voltageselectable within the range -100 ... 100 mV
Input resistance≥ 1 MΩ (-100 ... 100 mV)
Connection sidecontrol side
ConnectionSL1: 8a(+), 7a(-)
OutputAnalog current output
Current range0 ... 20 mA or 4 ... 20 mA
Fault signaldownscale 0 or 2 mA, upscale 21.5 mA (acc. NAMUR NE43)
Sourceload 0 ... 550 Ω
open-circuit voltage ≤ 18 V
SinkVoltage across terminals 5 ... 30 V. If the current is supplied from a source > 25 V,
series resistance of ≥ (V - 25)/0.0215 Ω is needed, where V is the source voltage.
The maximum value of the resistance is (V - 5)/0.0215 Ω.
Fault indication output
ConnectionSL1: 6b
Output typeopen collector transistor (internal fault bus)
Transfer characteristics
After calibrationPt100: ± (0.06 % of measurement value in K + 0.1 % of span + 0.1 K (4-wire connection))
thermocouple: ± (0.05 % of measurement value in °C + 0.1 % of span + 1 K (1.2 K for types R and S)) , includes ± 0.8 K fault of the cold junction compensation (CJC)
mV: ± (50 µV + 0.1 % of span)
potentiometer: ± (0.05 % of full scale + 0.1 % of span, (excludes faults due to lead resistance))
Influence of ambient temperaturePt100: ± (0.0015 % of measurement value in K + 0.006 % of span)/K ΔTamb*)
thermocouple: ± (0.02 K + 0.005 % of measurement value in °C + 0.006 % of span)/K ΔTamb*)), influence of cold junction compensation (CJC) included
mV: ± (0.01 % of measurement value + 0.006 % of span)/K ΔTamb*)
potentiometer: ± 0.006 % of span/K ΔTamb*)
*) ΔTamb = ambient temperature change referenced to 23 °C (296 K)
Influence of supply voltage< 0.01 % of span
Influence of load≤ 0.001 % of output value per 100 Ω
Reaction timeworst case value (sensor breakage and/or sensor short circuit detection enabled)
mV: 1 s, thermocouples with CJC: 1.1 s, thermocouples with fixed reference temperature: 1.1 s, 3- or 4-wire RTD: 920 ms, 2-wire RTD: 800 ms, Potentiometer: 2.05 s
Galvanic isolation
Output/supply, programming inputfunctional insulation, rated insulation voltage 50 V AC
There is no electrical isolation between the programming input and the supply.
The programming cable provides galvanic isolation so that ground loops are avoided.
Display elementsLEDs
Control elementsDIP switch
Factory settingouput: current source 4 ... 20 mA
input: Pt100, 4-wire, temperature range -200 ... 850 C (73 ... 1123 K)
Configurationvia DIP switches
via PACTware
Labelingspace for labeling at the front
Directive conformity
Electromagnetic compatibility
Directive 2014/30/EUEN 61326-1:2013 (industrial locations)
Electromagnetic compatibilityNE 21:2012
EN 61326-3-2:2008
Degree of protectionIEC 60529:2001
Protection against electrical shockUL 61010-1:2012
Ambient conditions
Ambient temperature-20 ... 70 °C (-4 ... 158 °F)
Relative humidity5 ... 90 %, non-condensing up to 35 °C (95 °F)
Mechanical specifications
Degree of protectionIP20
Massapprox. 100 g
Dimensions12.5 x 106 x 128 mm (0.5 x 4.2 x 5.1 inch) (W x H x D)
Height106 mm
Width12.5 mm
Depth128 mm
Mountingon termination board
Codingpin 1, 2 and 4 trimmed
For further information see system description.
Data for application in connection with hazardous areas
EU-type examination certificateBASEEFA 14 ATEX 0129 X
MarkingEx-Hexagon II (1)G [Ex ia Ga] IIC
Ex-Hexagon II (1)D [Ex ia Da] IIIC
Ex-Hexagon I (M1) [Ex ia Ma] I
Input[Ex ia Ga] IIC, [Ex ia Da] IIIC, [Ex ia Ma] I
Voltage9 V
Current13.1 mA
Power30 mW
Analog outputs, power supply, collective error
Maximum safe voltage250 V (Attention! This is not the rated voltage.)
Maximum safe voltage250 V (Attention! The rated voltage is lower.), RS 232
CertificateBASEEFA 14 ATEX 0130 X
MarkingEx-Hexagon II 3G Ex nA IIC T4 Gc
Galvanic isolation
Input/Other circuitssafe electrical isolation acc. to IEC/EN 60079-11, voltage peak value 375 V
Directive conformity
Directive 2014/34/EUEN IEC 60079-0:2018+AC:2020 , EN 60079-11:2012 , EN 60079-15:2010
International approvals
FM approval
Control drawing116-0429 (cFMus)
UL approval
Control drawing116-0391 (cULus)
IECEx approval
IECEx certificateIECEx BAS 14.0071X
IECEx BAS 16.0003X
IECEx marking[Ex ia Ga] IIC , [Ex ia Da] IIIC , [Ex ia Ma] I
Ex nA IIC T4 Gc
General information
Supplementary informationObserve the certificates, declarations of conformity, instruction manuals, and manuals where applicable. For information see


ECLASS 13.027210129
ECLASS 12.027210129
ECLASS 11.027210129
ECLASS 10.0.127210129
ECLASS 9.027210129
ECLASS 8.027210190
ECLASS 5.127210107
ETIM 9.0EC002919
ETIM 8.0EC002919
ETIM 7.0EC002919
ETIM 6.0EC002919
ETIM 5.0EC001485
UNSPSC 12.132101514

Details: HiC2081


This isolated barrier is used for intrinsic safety applications.

This device accepts thermocouples (TC), millivolts, potentiometers, or resistance temperature detectors (RTD) from a hazardous area and converts them to an isolated, linearized analog output in the safe area.

The output can be selected as a current source or current sink with a switch.

Line fault detection of the field circuit is indicated by a red LED and an output on the fault bus. The fault conditions are monitored via a Fault Indication Board.

The device is easily configured by the use of the PACTware configuration software.

This device mounts on a HiC Termination Board.

Product Documentation: HiC2081

Language Selection:
Safety and Security DocumentationLanguageFile TypeFile Size
Instruction manualENGPDF167 KB
Functional Safety ManualENGPDF1542 KB
Manual HiC2081, HiD2081, HiD2082ENGPDF5352 KB
System ManualENGPDF5438 KB
Installation and configuration guide Device Type Manager (DTM)ENGPDF8665 KB

Design / Simulation: HiC2081

Language Selection:
CADLanguageFile TypeFile Size
CAD Portal / CAD PortalALLLINK---

Approvals: HiC2081

Language Selection:
CertificatesCertificate No.LanguageFile TypeFile Size
Baseefa IECEx Certificate of ConformityIECEx BAS 14.0071XALLLINK---
Baseefa Type n Zone 2 IECEx Certificate of ConformityIECEx BAS 16.0003XALLLINK---
Brasil TUV Rheinland BrazilTÜV 16.0819 XALLPDF1177 KB
Canada FMFM 17 CA 0057XALLPDF328 KB
China SITIIAS CCC Ex Certificate2020322316001450 (Singapore)ALLPDF1069 KB
Europe Baseefa ATEX Category (1) D ATEX Category (M1) ATEX Category (1) GBaseefa 14 ATEX 0129XALLPDF656 KB
Europe Baseefa ATEX Category 3 GBaseefa 14 ATEX 0130XALLPDF511 KB
Korea KOSHA15-AV4BO-0593ALLPDF609 KB
USA Canada UL Hazardous Location Certificate of Compliance cULus UL E106378CoC 20140403 - E106378 RepRef 20140331ALLPDF427 KB
United Arab Emirates SGS Gulf Limited ECASEx23-12-96804/E23-12-099934/NB0002ALLPDF603 KB
United Arab Emirates SGS Gulf Limited ECASEx23-12-96803/E23-12-099929/NB0002ALLPDF854 KB
United Kingdom UKEX Category (1) G UK-Type Examination Certificate UKEX Category (M1) UKEX Category (1) DCML 21UKEX21110XALLPDF176 KB
Control Drawings
Control drawing UL / Control drawing UL   ALLPDF59 KB
Control drawing FM / Control drawing FM   ALLPDF88 KB
Declaration of Conformity
EU Declaration of Conformity (P+F)TDOC-0748HENGENGPDF232 KB
UK Declaration of Conformity (P+F)TDOC-7113BENGENGPDF201 KB

Software: HiC2081

Language Selection:
FrameworksRelease InfoFile TypeFile Size
PACTware 4.1 SP6 / PACTware 4.1 SP64.1.0.53ZIP43327 KB
PACTware 5.0 / PACTware KB
Device Description Files/Drivers
DTM Collection Interface Technology 2 / DTM Collection Interface Technology KB

Associated Products: HiC2081

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