Description
Product Description
Overview
The Yokogawa AAI835-S03 is a 16-channel analog input module designed for high-accuracy process measurement and control. It interfaces seamlessly with CENTUM VP I/O racks, enabling direct integration into control systems. The module accepts standard 4-20 mA signals from field transmitters such as pressure and temperature sensors, converting analog values into digital data for precise controller processing.
Engineered for reliable industrial performance, the module features channel-to-backplane isolation, high-resolution conversion, and rapid sampling across all inputs. Its compact design and robust components ensure consistent operation under typical environmental conditions.
Technical Specifications
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Model / Part Number: AAI835-S03
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Brand: Yokogawa
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Origin: Japan
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Number of Channels: 16 single-ended analog inputs
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Input Signal Range: 4-20 mA DC
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Input Impedance: 250 ohms
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Resolution: 16-bit (0-65535 counts)
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Accuracy: ±0.05 percent of span
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Conversion Time: 20 ms for all channels
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Isolation: 500 V AC (channel to backplane)
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Field Wiring: 16-point removable terminal block
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Status Indicators: Single LED for module power and communication
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Onboard Components: 224 discrete components
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Energy Storage: Tantalum and ceramic capacitors rated 330 uF at 16 V DC
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Dimensions (W x H x D): 100 mm x 120 mm x 40 mm
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Weight: 0.28 kg
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Operating Temperature Range: -10 degrees C to +55 degrees C
Applications
The AAI835-S03 module is suitable for:
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Monitoring and acquisition of analog signals from multiple field transmitters
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High-precision measurement in process control systems
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Integration into CENTUM VP I/O racks for centralized control
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Systems requiring fast and reliable conversion of analog to digital signals
FAQ
Q: How many channels does the module support?
A: The module supports 16 single-ended analog input channels.
Q: Can this module be used with pressure and temperature transmitters?
A: Yes, it accepts standard 4-20 mA signals from both pressure and temperature transmitters.
Q: What is the conversion speed for all channels?
A: The module completes conversion for all 16 channels in 20 milliseconds.
Q: Is the module isolated?
A: Yes, there is 500 V AC isolation between each channel and the backplane.
