YOKOGAWA AIP171

Description

YOKOGAWA AIP171

Product Parameters

Parameter	Specification
Brand	Yokogawa
Model	AIP171
Type	Analog Input Module
Compatibility	AFV300/AFV400, EXAFV (explosion-proof) systems
Input Types	Thermocouples (K, J, T, E, R, S, B), RTD (Pt100, Pt500), Voltage (±10V), Current (4–20mA)
Channels	8 (isolated)
Accuracy	±0.05% (thermocouple/RTD); ±0.02% (voltage/current)
Sampling Rate	100 ms/channel (max)
Isolation	500V AC (channel-to-channel, channel-to-ground)
Power Supply	24V DC (via system)
Dimensions (D×W×H)	15.2 cm × 5.1 cm × 20.3 cm
Weight	0.5 kg
Temperature Range	-20°C to 70°C (operating)

YOKOGAWA AIP171

Advantages and Features

• Multi-Signal Support: Handles thermocouples, RTDs, voltage, and current signals without hardware changes.
• High Accuracy: ±0.02% precision for voltage/current inputs, reducing measurement errors in critical processes.
• Isolated Channels: 500V AC isolation protects against ground loops and electrical noise.
• Compact Design: 8-channel capacity in a small form factor (15.2 cm depth) for space-constrained cabinets.
• Self-Diagnosis: Built-in error detection (open circuit, short circuit, overrange) for proactive maintenance.

Application Areas and Cases

• Industries: Oil & gas, power plants, food & beverage, pharmaceuticals.
• Case Example: A pharmaceutical plant used the AIP171 to monitor 8 temperature points (thermocouples) in a reactor system. The module’s isolation and accuracy ensured stable data collection, reducing batch rejects by 15% and improving compliance with FDA standards.

Competitor Comparison

Compared to similar analog input modules, the AIP171 offers a higher channel count (8 vs. typical 4–6) and superior isolation (500V AC vs. 250V AC). Its support for mixed signal types (thermocouple + RTD + voltage in one module) eliminates the need for multiple modules, reducing system complexity and costs.

YOKOGAWA AIP171

Selection Recommendations

• Signal Type: Confirm input requirements (thermocouple/RTD/voltage/current).
• Channel Count: Match system needs (8 channels standard; expand via additional modules).
• Environment: Ensure compatibility with -20°C to 70°C operating conditions and IP54/IP65 (with enclosure) for dusty/wet environments.
• Redundancy: Pair with redundant CPU modules (e.g., CP461-50) for fault-critical systems.

Precautions

• Installation: Use shielded cables for thermocouple/RTD signals; follow ESD protection protocols.
• Calibration: Perform periodic calibration (every 2 years) using Yokogawa’s tools for optimal accuracy.
• Power Stability: Ensure 24V DC supply with <10% ripple; avoid shared power buses with high-current devices.
• Safety: Disconnect power before module replacement; verify explosion-proof certifications (EXAFV models) for hazardous areas.
• Firmware: Update firmware regularly to access new features and bug fixes.