Vaisala

PDT101

Differential pressure transmitter for critical environments

PDT101

An air differential pressure transmitter with high-accuracy bidirectional models for cleanrooms and regulated environments, and unidirectional models for air handling systems. The micro-machined silicon diaphragm sensor provides inherent repeatability and stability, with calibrations traceable to SI units.

Download datasheet (PDF)

Specifications

Technical specifications

Measurement ranges
±60 Pa / ±125 Pa (bidireccional); 0–500 Pa (unidireccional); equivalentes en inH2O
Accuracy
0,4 % del span (bidireccional); 1 % del span (unidireccional)
Long-term stability
≤ ±0,25 % del span por año
Outputs
4–20 mA (2 hilos) o 0–5 / 0–10 V (3 hilos)
Response time (10–90 %)
250 ms

Features

Key features

  • Dedicated models for very low differential pressures in critical and regulated environments
  • Ultra-thin micro-machined silicon diaphragm sensor with inherent repeatability and stability
  • Zero and span adjustments accessible from the front of the unit
  • LED status indicator for quick spot checks
  • Wall, DIN rail, or panel mounting
  • Calibrations traceable to SI units through national metrology institutes or accredited laboratories

Applications

Typical applications

  • Pharmaceutical and life science cleanrooms
  • Semiconductor and electronics industries
  • Differential pressure across fans and filters in air handling
  • Building automation and data centers
  • Regulated continuous monitoring with the viewLinc system

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