Features:
- Full Channel-to-System Isolation
- Integrated Transmitter Power Supply
- Dual-Redundancy Ready
The YOKOGAWA AAI143-S50 S1 provides 1500 V AC isolation between each input channel and the system backbone. This eliminates ground loop errors, protects against field-side voltage surges, and ensures that a fault on one channel does not affect adjacent channels or the controller.
Each channel of the YOKOGAWA AAI143-S50 S1 can power 2-wire loop-powered transmitters directly, delivering 19.0 V minimum at 20 mA. This reduces external power supply requirements, simplifies wiring panels, and lowers overall installation costs for analog signal loops.
The YOKOGAWA AAI143-S50 S1 supports hot-standby redundant configuration by installing two identical modules in adjacent slots. In case of primary module failure, the backup automatically takes over without process interruption – critical for emergency shutdown systems and continuous production lines.
The AAI143-S50 S1 YOKOGAWA 16-Channel Isolated Analog Input Module
may still be available for purchase and support from Apter Power beyond End-Of-Life (EOL) by the manufacturer (OEM).
YOKOGAWA AAI143-S50 S1 16-Channel Isolated Analog Input Module Manuals,Datasheets,Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.;
YOKOGAWA AAI143-S50 S1 16-Channel Isolated Analog Input Module
General
- Manufacturer YOKOGAWA
- Model AAI143-S50 S1
- Condition New Original ready stock
- Product Family AAI143-S03 S1,AAI143-S53 S1,AAI143-H53 S1
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Oil & Gas Wellhead Monitoring – The YOKOGAWA AAI143-S50 S1 captures casing pressure and flow rate 4-20mA signals from remote well pads, with isolation protecting against lightning-induced surges.
- Chemical Reactor Temperature Control – 16 isolated channels allow direct connection of thermocouple-to-current transmitters without ground loop errors, ensuring precise exothermic reaction management.
- Power Generation Boiler Drum Level – Redundant configuration of the YOKOGAWA AAI143-S50 S1 ensures continuous level measurement even during module failure, preventing boiler trips.
- Water & Wastewater Treatment – From chemical dosing pumps to sludge level transmitters, this module provides reliable analog input collection across distributed treatment basins.
- Real-Time 4-20mA Acquisition – 10 ms update period per channel enables the YOKOGAWA AAI143-S50 S1 to feed high-speed control loops such as compressor surge protection or fast batch reactions.
- Per-Channel 2-Wire/4-Wire Configuration – The module adapts to existing field wiring schemes without external signal conditioners, reducing engineering effort during plant retrofits.
- Dual-Redundancy for Critical Loops – By pairing two YOKOGAWA AAI143-S50 S1 modules, control systems achieve automatic failover for safety instrumented functions (SIF) and uninterrupted production.
- HART Variable Monitoring – With the -H variant, operators can read digital HART variables (PV, SV, TV, QV) from smart transmitters without additional hardware or wiring.
- ISA Standard G3 Option (–3 Suffix) – The YOKOGAWA AAI143-S50 S1 with G3 option withstands corrosive atmospheres (e.g., H₂S, SO₂) commonly found in pulp mills, refineries, and wastewater plants.
- 1500 V AC Isolation (Input to System) – Compliant with industrial control system isolation standards, protecting the backplane and controller from field-side faults.
- Explosion Protection (E Suffix) – Available for hazardous area installations, though note: a Zener barrier is NOT compatible – use an isolation barrier for intrinsic safety with the YOKOGAWA AAI143-S50 S1.
- Wide Temperature Operation (-20 to 70 °C) – With the temperature option, the YOKOGAWA AAI143-S50 S1 performs reliably in unheated outdoor enclosures or desert installations.