Yokogawa AAI143-S53 Current Input Module
Product Description
The AAI143-S53 is a 16-channel isolated analog input module from Yokogawa. It accepts 4 to 20 mA signals from 2-wire or 4-wire transmitters. This module supports dual-redundant configurations for critical control loops. It delivers high accuracy and fast 10 ms data update. HART communication is available for digital diagnostics.
Technical Specifications
- Brand: Yokogawa
- Model: AAI143-S53
- Type: Isolated Current Input Module
- Channels: 16 isolated inputs
- Input Signal: 4 to 20 mA
- Allowable Input Current: 24 mA
- Input Resistance (Power ON): 270 Ω (20 mA) to 350 Ω (4 mA)
- Input Resistance (Power OFF): ≥500 kΩ
- Accuracy: ±16 µA
- Data Update Period: 10 ms
- Transmitter Power Supply: 19.0 V (20 mA) to 25.5 V (0 mA), current limit 25 mA
- Temperature Drift: ±16 µA/10 °C
- Withstanding Voltage: 1500 V AC (1 min) between input and system
- Current Consumption: 230 mA (5 V DC), 540 mA (24 V DC)
- Weight: 0.3 kg
- Operating Temperature: -20 to 70 °C (with ISA Standard G3 option)
- HART Communication: Available
- External Communication: Pressure clamp terminal, MIL connector, KS1 cable
Key Features & Benefits
- Measurement Range: 4-20 mA with 24 mA overload protection
- Resolution & Linearity: ±16 µA accuracy ensures reliable readings
- Environmental Tolerance: -20 to 70 °C, ISA G3 corrosion resistance
- Noise Immunity: 1500 V AC isolation, high input impedance
- Diagnostic Capability: Built-in HART pass-through for device status
- Installation: DIN rail mount, set pins for 2-wire/4-wire per channel
Applications
- Process control in oil & gas, chemical, and power plants
- DCS and PLC systems, especially Modicon Quantum upgrades
- Redundant I/O for safety-critical loops
- Retrofit of legacy analog input panels
Compatibility & Installation
- Compatibility: Yokogawa CENTUM VP, CS 3000, and third-party DCS
- Wiring: Pressure clamp terminals or MIL connector cable
- Configuration: DIP pins for each channel (2-wire/4-wire)
- Redundancy: Dual-redundant ready
Certifications & Quality
- ISA Standard G3 corrosion protection
- Temperature range -20 to 70 °C
- No explosion protection (standard type)
- 12-month warranty from Oiltech Controls
Package Contents
- AAI143-S53 module (0.3 kg)
- KS1 dedicated cable (optional)
- MIL connector cable (optional)
- Installation manual (digital)
Shipping & Delivery
- Express couriers: FedEx, UPS, DHL
- Global shipment support
- Tracking number provided
Why Buy From Oiltech Controls?
- 15+ years in industrial automation spare parts
- Global shipment with fast delivery
- Tested surplus / refurbished options
- 12-month warranty on all products
- Technical verification before shipment
- Support for obsolete control systems
Frequently Asked Questions
- Q: Can this module replace AAI143-S00?
A: Yes, S53 has wider temperature range and G3 coating. - Q: Does it support HART?
A: Yes, HART communication is available. - Q: What is the data update speed?
A: 10 ms per channel. - Q: Is it suitable for 2-wire transmitters?
A: Yes, set by channel pin. - Q: What is the input resistance when powered off?
A: ≥500 kΩ.
Contact Information
For inquiries, please contact us:
Email: info@oiltechcontrols.com
WhatsApp: +86 158 8020 0923
Original Source: https://www.oiltechcontrols.com/
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