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testo 521-3 - Differential pressure measuring instrument 0 to 2.5 hPa

0560 5213
  • Integrated temperature-compensated differential pressure sensor with accuracy of up to ± 0.5 Pa
  • Calculation of the flow velocity and the volume flow via Pitot tube (optional)
  • Direct zeroing of the display values of pressure probes
  • 2 probe inputs for additional pressure and temperature probes
     
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    Using the testo 521-3, even the smallest differential pressures, up to 250 Pa, are measured. High accuracy and a resolution of 0.1 Pa mean the instrument is ideal for differential pressure measurements in clean rooms.
    When used with a pitot tube, the internal pressure sensor measures flow speeds in the range of 0.01 to 3937 fpm.

    testo 521-3 differential pressure measuring instrument, including calibration protocol and batteries

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  • Temperature - NTC

    Measuring range
    -40° to 302 °F / -40 to +150 °C
    Accuracy
    ±0.7 °F (Remaining Range)* / ±0.4 °C (Remaining Range)*
    ±0.4 °F (14° to 122 °F)* / ±0.2 °C (-10 to +50 °C)*
    Resolution
    0.1 °F / 0.1 °C
    *Accuracy information applies only to instrument without probes connected

    Temperature - Type K TC

    Measuring range
    -328° to 2498 °F / -200 to +1370 °C
    Accuracy
    ±0.7 °F (-148° to 392 °F)* / ±0.4 °C (-100 to +200 °C)*
    ±2 °F (Remaining Range)* / ±1 °C (Remaining Range)*
    Resolution
    0.1 °F / 0.1 °C
    *Accuracy information applies only to instrument without probes connected

    Differential pressure (internal sensor) - Piezoresistive

    Measuring range
    0 to 1.0 InH₂O** / 0 to 2.5 hPa**
    Accuracy
    ±(0.0 InH₂O ±0.5 % of mv) (0.1 to 1 InH₂O) / ±(0.5 Pa ±0.5 % of mv) (20.1 to 250 Pa)
    ±0.0 InH₂O (0 to 0 InH₂O) / ±0.5 Pa (0 to 20 Pa)
    Resolution
    0.1 InH₂O / 0.1 Pa
    Static pressure
    400 InH₂O / 1000 hPa
    Overload
    20 InH₂O / 50 hPa
    Zeroing
    to 0.2 InH₂O / to 0.5 hPa
    **Sensor is not suitable for long-term measurements

    Differential pressure probes

    Pitot tubes

  • Pitot tubes
    Staurohr
    Pitot tube, stainless steel, 19.7 in.
      :
      0635 2045
      $ 199.75
      1
    • Pitot tubes
      Staurohr
      Pitot tube, stainless steel, 13.8 in.
        :
        0635 2145
        $ 174.25
        1
      • Pressure Probe Accessories

      • Pressure Probe Accessories
        0638 1847_absolute-pressure-probe
        Pressure probe, 29 psi, measures absolute pressure
          :
          0638 1847
        • Relative pressure probe

          Temperature probes