Yokogawa AST143-S00 TC/mV Input Module High Quality

Overview

The Yokogawa AST143-S00 is a TC/mV Input Module engineered for high-accuracy temperature and millivolt signal acquisition. It features 16 isolated input channels, making it ideal for critical industrial applications. The module delivers stable performance with built-in isolation and 1500 V AC withstand voltage. It integrates easily with Yokogawa’s DCS platforms and ensures safe operation in hazardous environments (Zone 2/Division 2). Furthermore, its high-speed data update and low drift ensure reliable measurement even under temperature fluctuations.

Technical Specifications

• Model: AST143-S00
• Type: TC/mV Input Module
• Input Channels: 16 (individually isolated)
• Input Types:
  • Thermocouple: B, E, J, K, N, R, S, T
  • Millivolt: ±100 mV typical
• Input Ranges:
  • Thermocouples: –200°C to +1500°C
  • RTDs: –200°C to +800°C
  • Thermistors: –50°C to +150°C
• Accuracy (23°C):
  • Thermocouples: ±40 μV
  • Millivolt: ±80 μV
• Drift (per 10°C change):
  • Thermocouples: ±125 μV
  • Millivolt: ±250 μV
• Input Resistance: ≥1 MΩ
• Output Signal: 4–20 mA
• Communication Protocol: HART
• Isolation Voltage: 1500 V AC
• Power Supply: 24 V DC ±10%
• Current Consumption:
  • 150 mA at 5 V DC
  • 80 mA at 24 V DC
• Data Update Period: 10 ms
• Operating Temperature: –20°C to +70°C
• Dimensions: 120 × 100 × 39 mm
• Weight: 0.30 kg
• Environmental Compliance: ISA S71.04 Class G3
• Hazardous Area Rating: Zone 2 / Division 2 compliant