X1-IS-UNI-01-S G.M. International S.p.A.
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X1-IS-UNI-01-S

  1. Products
  2. Intrinsically Safe Isolators
  3. Universal
X1-IS-UNI-01-S
I.S. SIL3/2 Universal Module

The Universal X1-IS-UNI-01 module is a high integrity interface suitable for applications requiring SIL 3 or SIL 2 level (depending on applications) in safety related systems for high risk industries. Thanks to its high flexibility, it can interface 2-wire active/passive 4-20 mA (AI), smart positioners (AO), switches and proximity detectors (DI), as well as solenoid valves and other process control devices (DO) located in Hazardous Area. HART® communication is supported for both active and passive transmitters, and I/P. The module always sinks current and the Termination Board extends its use to source loops. Programmable line and load open/short circuit detection and out-of-range current fault is also provided. The module automatically matches the application, without reprogramming; if required, it can be re-calibrated through the configuration software. To ease maintenance operations, field devices can be disconnected through a two-position insertion/extraction mechanism. This product requires a dedicated Termination Board.

FEATURES

  • SIL 3 / SC 3 (AI, DI, DO) or SIL 2 / SC 3 (AO)
  • Input from Zone 0 / Division 1
  • Installation in Zone 2 / Division 2
  • Loop disconnection to ease maintenance operations
  • Mechanical polarization key to prevent destructive mismatches
  • Suitable for AI, AO, DI and DO applications without configuration
  • HART® compatible (passive and active AI/AO loops)
  • Line & Load short/open circuit programmable diagnostics
  • Out-of-range fault with programmable thresholds
  • Digital calibration available through configuration software
  • Input and Output short circuit proof
  • Field fault mirroring to the DCS/PLC UNI Card
  • High Accuracy
  • Three port isolation, Input/Output/Supply

STATUS

 
   ACTIVE
Product lifecycle policy (EN)

CHANNELS

1

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Technical Data


General
Power dissipation @ 24 Vdc, typical, for all applications.
AI: 1.05 W (pass. Tx), 1.15 W (act. Tx) with 20 mA, 24 V + 250 Ω.
AO: 0.95 W with 20 mA on I/P out.
DI: 1.15 W with short circuit input.
DO: 1.65 W with 40 mA, 1.45 with 35 mA.

System Supply
Voltage 24 Vdc nom (18 to 28.8 Vdc).
Current Consumption @ 24 Vdc, typical, for all applications.
AI: 39 mA (passive Tx), 25 mA (active Tx) with 20 mA.
AO: 37 mA with 20 mA on I/P out.
DI: 39 mA with short circuit input.
DO: 81 mA with 40 mA.

System In/Out
Type Current 0 to 40 mA, mirrored from Field. The module always sinks current and the Termination Board extends its use to source loops.
Maximum load 600 Ω (AI usage).
Minimum voltage 15 V (AI, DI, DO usage).
Maximum voltage 30 V (all applications).

Field In/Out
Type Field interface specs depend on terminals and usage.
Current limitation 45 mA, typical, for all applications.
AI: Current 4 to 20 mA, passive or active Tx + HART.
Passive Tx line voltage: 15.5 V minimum @ 20 mA.
Active Tx voltage drop: 7 V maximum @ 20 mA.
AO: Current 4 to 20 mA + HART.
Maximum load: 600 Ω.
DI: 8 V/1 kΩ typical, according to NAMUR standard.
DO: 0 to 40 mA, linear derating from 40 mA (60 °C) to 35 mA (70 °C).
Output voltage: 8.5 V minimum @ 40 mA.

Fault
Type Load short/open with settable limits on voltage, current and resistance.
Fault signalling common fault & fault mirroring on DCS/PLC IO.

Performance
Ref. Conditions 24 V supply, 250 Ω load, 23 ± 1 °C Tamb.
Accuracy ≤ ± 40 µA within the 4-20 mA range.
Temp. influence ≤ ± 2 µA/°C.

Isolation
Type Field InOut/System InOut 2.5 kV; Field InOut/System Supply 2.5 kV; System InOut/System Supply 500 V.

Environmental conditions

Operating temperature temperature limits –40 to +70 °C
Storage temperature temperature limits –45 to +80 °C.

Safety description
Equipment Associated apparatus and non-sparking electrical equipment.
Safety parameters Uo = 26.8 V, Io = 92 mA, Po = 616 mW at terminals A-Z.
Uo = 10.7 V, Io = 11 mA, Po = 29.4 mW at terminals C-Z.
Uo = 1.1 V, Io = 56 mA, Po = 16 mW at terminals B-Z.
Ui = 30 V, Ii = 128 mA, Ci = 3.65 nF, Li = 0 µH at terminals B-Z.
Um = 250 Vrms or Vdc, -40 °C ≤ Ta ≤ 70 °C.

Mounting
Type On custom Termination Board.
Weight about 70 g.
Dimensions Width 10 mm, Depth 80 mm, Height 120 mm.

Data Sheet


Datasheet of X1-IS-UNI-01 ( EN )

Instruction Manual


CCC Ex safety instruction manual for X1 series ( EN | CN )
FM Control Drawing of X1-IS-UNI-01 ( EN )
Safety Information of X1-IS-UNI-01-S ( EN )
Instruction Manual X1 Series ( EN )
Instruction Manual of X1-IS-UNI-01 ( EN )
Safety Manual of X1-IS-UNI-01-S ( EN )

Certifications


Type Description Area Number Issued by Issue Date
ATEX FM ATEX I.S. X1 Series English Certificate ( EN ) Europe FM23ATEX0038X FM 2025-08-13
Ex X1 CCC certificate for China ( EN ) China 2025322310006991 NEPSI 2025-11-12
Ex EAC Ex Certificate for X1 Series (modules) ( KK ) Eurasian Community EAЭC KG417/039.IT.02.08242 Industrial Safety LLC (KG) 2026-03-04
Ex FM US X1 Series Divisions and Zones English Certificate ( EN ) North America FM23US0073X FM 2025-08-12
Ex FM Canada X1 Series Divisions and Zones English Certificate ( EN ) North America FM23CA0055X FM 2025-08-12
IECEx FM IECEx X1 Series English Certificate ( EN ) International IECEx FMG 23.0018X FM 2025-08-12
SIL TUV IT 25 SIL 0587 A SIL Certificate Summary ( EN ) International TUV IT 25 SIL 0587 A Rev.1 TUV_SUD 2025-09-19
UKEx FM UKEx I.S. X1 Series English Certificate ( EN ) United Kingdom FM23UKEX0039X FM 2025-08-14

Declarations of Conformity


EU Declaration of Conformity of X1-IS-UNI-01 ( EN | IT )
UK Declaration of Conformity of X1-IS-UNI-01 ( EN )

Dimensions


Image of X_size

Connections


Drawings


3D_drawing_X1-Cartridge_stp ( EN )