AAI135-S53

Product Overview

AAI135-S53 is a 16-channel isolated analog input module designed to acquire 4–20 mA DC signals from field devices and deliver stable, high-accuracy data to control systems with electrical isolation and environmental protection.

Suffix Codes

• S Standard type, no HART communication support
• 5 Standard connection configuration without explosion protection
• 3 ISA Standard G3 conformal coating with enhanced corrosion resistance and high-density installation support

Technical Specifications

Input Characteristics
• Number of input channels: 16 channels, isolated
• Input signal: 4–20 mA DC
• Allowable input current: 24 mA
• Input impedance: Approx. 250 Ω (power ON), ≥500 Ω (power OFF)
• Accuracy: ±0.1% of full scale
• Data refresh cycle: 10 ms

Electrical Ratings
• Withstand voltage: 1500 V AC for 1 minute between input signal and system
• Current consumption: 230 mA max. (5 V DC internal supply)

Mechanical & Interface
• Weight: Approx. 0.33 kg
• System connection: Pressure clamp terminal, dedicated cable, or ELCO cable connection

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