AVT 251 MDR2B – Advanced Air Velocity Transmitter

DESCRIPTION

Enhanced functionality for automation, the AVT 251 MDR2B expands on the standard AVT 251 with advanced features such as Modbus RS485 communication, an LCD display, relay outputs, and a buzzer alert system. These enhancements make it ideal for real-time monitoring and automated control applications.

Robust and intelligent design with an IP65-rated enclosure ensures long-term reliability in demanding environments. The built-in LCD display provides real-time measurements, while the relay outputs and buzzer enable alarm functionalities.

KEY FEATURES

• Selectable air velocity ranges: 0-5 m/s, 0-10 m/s, 0-15 m/s, or 0-20 m/s
• High accuracy: ±5% for 0-20 m/s
• Multiple outputs:
  • AO1: 4-20 mA
  • AO2: 0-10 Vdc
• Modbus RS485 communication
• Integrated LCD display for real-time monitoring of air velocity values
• Dual relay outputs to trigger alarms or control external devices
• Buzzer alert system for audible warnings when thresholds are exceeded
• Power supply: 24V AC/DC
• Fast response: selectable 1s or 5s via DIP switches
• IP65 enclosure for protection in harsh conditions
• Mounting: includes duct mounting flange with neoprene gasket