Air Differential Pressure Transmitters PDM-series

• Versatility: Field-selectable English or metric pressure ranges with three selectable ranges in the same unit.
• Pressure Ranges:
  • 0-25 Pa, 0-50 Pa, or 0-100 Pa.
  • 0-250 Pa, 0-500 Pa, or 0-1250 Pa.
  • +25 to -25 Pa, +50 to -50 Pa, or +100 to -100 Pa.
• Output Options: Standard output of 0-10 Vdc; 4-20 mA and 0-5 Vdc available on request.
• Display Options: Available with or without an LCD display. The LCD display enables adjustable damping of the output signal.
• Square Root Output: Allows compatibility with pitot tubes and similar flow sensors.
• Durable Construction: IP66-rated enclosure for superior protection.
• Exceptional Accuracy:
  • ±1% for 50 Pa, 100 Pa, 500 Pa, and 1250 Pa.
  • ±2% for 25 Pa, 250 Pa, and all bidirectional ranges.
• Advanced Technology: Patented magnetic sensing technology ensures long-term performance.

Without LCD Display

• PDM 321V: Output 0-10 Vdc, selectable ranges 0-25, 0-50, or 0-100 Pa.
• PDM 311V: Output 0-10 Vdc, selectable ranges 0-250, 0-500, or 0-1250 Pa.
• PDM 221V: Output 0-10 Vdc, selectable ranges +25 to -25, +50 to -50, or +100 to -100 Pa.

With LCD Display

• PDM 321V LCD: Output 0-10 Vdc, selectable ranges 0-25, 0-50, or 0-100 Pa.
• PDM 311V LCD: Output 0-10 Vdc, selectable ranges 0-250, 0-500, or 0-1250 Pa.
• PDM 221V LCD: Output 0-10 Vdc, selectable ranges +25 to -25, +50 to -50, or +100 to -100 Pa.

• Monitoring air velocity and pressure in ducts and ventilation systems.
• Ensuring cleanroom compliance.
• Measuring and controlling airflow in industrial and laboratory environments.