Yokogawa AAI141-S50/K4A00 Analog Input Module 16 Channel

Description

Product Snapshot – Yokogawa AAI141-S50/K4A00 Analog Input Module

• Brand: Yokogawa
• Model: AAI141-S50/K4A00
• Series: AAI141 Analog Input Series
• Module type: high-density current input card
• Designed for fast multi-loop signal capture
• Handles standard 4–20 mA DC loops
• Built for PLC and DCS racks
• Compact body with 16 inputs
• Best for space saving cabinets

Key Value Highlights

• 16 channels in one module
• Per-channel 2-wire or 4-wire setting
• Pin based wiring mode selection
• 10 ms fast refresh rate
• 10 ms step response speed
• HART communication supported
• Stable reading at low current
• Wide input resistance range
• Low drift across temperature change
• Ready with KS cable adapter option

Electrical Performance Data

• Input signal: 4–20 mA DC
• Total input channels: 16 non-isolated
• Max allowable loop current: 27 mA
• Accuracy: ±16 µA
• Ambient drift: ±16 µA per 10°C
• Sampling cycle: 10 ms
• Step response: 10 ms typical
• Input resistance power ON: 400–1000 Ω
• Input resistance power OFF: ≥500 kΩ
• Loop supply voltage: ≥14.8 V at 20 mA
• Loop supply voltage: ≤26.4 V at 0 mA
• Output current limit: 27 mA

Power And Load Features

• Current draw: 310 mA at 5 VDC
• Current draw: 450 mA at 24 VDC
• Low heat design
• Good for dense I/O nodes
• Stable under full channel load

Wiring And Connection

• Pressure clamp terminal connection
• Fast wire locking structure
• Good for vibration sites
• K4A00 KS cable interface included
• Adapter model: ATK4A-00
• Clear terminal marking
• Easy loop check during install

Advanced Technical Points

• High channel density design
• Low noise analog front end
• Stable A/D conversion path
• Optimized for transmitter loops
• Supports smart field devices
• Works with mixed transmitter types
• Suitable for long cable runs
• Good EMC behavior in cabinets

Configuration Codes

• S: standard type
• 5: no explosion protection
• 0: basic version
• /K4A00: KS cable interface adapter

Typical Use Cases

• Large process plants
• Batch control skids
• Utility monitoring panels
• Analog signal aggregation
• Retrofit I/O upgrades

Commissioning Benefits

• Channel mode set by pin
• No software tool needed for mode select
• Quick loop validation
• Simple replacement steps
• Minimal downtime during swap

Packing And Delivery

• 1 × AAI141-S50/K4A00 module
• KS interface adapter included
• Protective anti-static packing
• Traceable serial label

Warranty And Logistics

• Warranty period: 12 months
• Full function test before shipping
• Global shipping available
• Courier: FedEx, UPS, DHL
• Express and economy options

Professional FAQ And Buying Tips

• Can I mix 2-wire and 4-wire transmitters on one card
• Yes. Each channel sets mode by pin. Plan wiring first.
• Is this module isolated per channel
• No. Channels are non-isolated. Use isolated barriers if needed.
• What is the best load range for stable reading
• Keep loop current between 6 and 18 mA for best margin.
• How many channels should I leave spare
• Engineers often keep 10–20 percent spare capacity.
• When should I choose AAI141 over 8-channel types
• Choose it when cabinet space is tight and loops are many.

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