Our products

CAL4/100ig CAL4/100igM
• CAL4/100ig (loop duplicator)

• CAL4/100ig4: 1 or 2 inputs to 4 outputs

• CAL4/100igM (multi-loop isolator)

• CAL4/100igM4: 4 inputs, 4 outputs

• Inputs: 0–10 V; 4–20 mA (active or passive)
• Outputs: 0–10 V; 4–20 mA
with test terminals and loop status LEDs

• Universal AC/DC power supply 20–265 V

• Hart transparency option
• SIL2 and SIL3 options according to IEC 61508
A series of galvanic isolators consisting of several independent and self-contained cells designed for processing 0–4–20 mA current loops. Each input can be active or passive, allowing for the measurement of current from an active transmitter or the powering of a 2-wire converter and measurement of the loop current.
Due to the modular design of these isolators, it is possible to isolate up to 4 independent loops or
to obtain, by connecting the inputs in series, up to 4 isolated copies of the same loop.
Similarly, connecting the outputs in series or parallel allows for higher loads or
higher output currents.

• Up to 8 isolated channels
Available with 1 to 8 independent channels

• Very high density, 8 insulators, 23 mm wide

• No auxiliary power supply; self-powered by loop current

• Excellente linéarité : 0.1%
• Faible temps de réponse : < 2 ms
• Faible perte d’insertion : < 65 ohms
• Connectique débrochable
• Option SIL2 et SIL3 selon IEC 61508
• Applications
Isolation entres automates
Le séparateur galvanique CAL25IGD est dédié à l’isolation de boucle de courant 0…4…20mA. Sans alimentation
auxiliaire, il s’insère facilement dans les boucles de courants existante, pour éliminer les courants de fuite liés
au rebouclage de masse, ou les problèmes de mode commun. Sa forte intégration permet un important gain de
place. La technologie de l’isolateur assure excellente fiabilité et une durée de vie supérieure à 40 ans.

0–10 mA, 0–20 mA, 4–20 mA, 10–50 mA, …

1 to 2 independent channels with Hart transparency option
3 independent channels with 2500 V rms electrical withstand voltage
1 channel, transmitter isolation using 2-wire technology

• No auxiliary power supply; self-powered by loop current

• Excellent linearity: 0.1%
• Fast response time: < 2 ms
• Very low insertion loss: < 65 ohms
• Wide range, 1:1 ratio: 0..4…10…20…50mA
• SIL2 and SIL3 options according to IEC 61508

CAL25IG-type galvanic isolators are designed for isolating 0–4–20 mA current loops.
Since they do not require an auxiliary power supply, they can be easily integrated into existing current loops
to eliminate ground loops or common-mode issues.

• Current inputs: (0…4.20 mA) With or without sensor power supply
• Simulation port: (automatic input switching) Allows for complete loop verification without disconnection
• Quadruple galvanic isolation (1000 V)

• 2 Independent Active or Passive Current Outputs; Impedance: 750 ohms

• Fully analog design
• Plug-in connectors
• Universal power supply: 20 to 265 VAC/VDC or 24 VDC
• HART transparency
• SIL2 and SIL3 compliance according to IEC 61508
The CAL23DmA-S2 analog signal converter provides isolation and duplication of 4..20mA
with a very high level of reliability. The quadruple galvanic isolation (Input/ Output 1/ Output 2/ Power Supply)
allows for complete independence of the current loops.

4-20mA or 0-10V isolator
• 8 isolated active or passive 0..4..20mA current inputs, 8 isolated 24V sensor power supplies
other combinations available:
1 input / 8 outputs
2 inputs / 2 x 4 outputs
4 inputs / 4 x 2 outputs

• Output via terminal block, connector, or PLC pre-wired cable

• Universal power supply 20–265 V AC/DC

• Full isolation: inputs/outputs/power supply and between channels

• Hart transparency option
• SIL2 and SIL3 options according to IEC 61508
This galvanic isolator features 8 channels that can replace PLC wiring interfaces,
providing safety through the isolation of current loops as well as individual power supply for each
sensor if necessary.