Spirometer

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If you’d like to speak to someone immediately, office contact information is available from the contact page.

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Overview

The Spirometer is a precision differential pressure transducer for measurements of respiration flow rates. With a flow head of a suitable size, the Spirometer can be used with animals of all sizes, from mice and rats, to large animals and humans. The Spirometer and attached flowhead function together as a pneumotachometer, with an output signal proportional to airflow.

For use with Respiratory Flow Heads in small animals or humans and the Heated Pneumotach 800L and Heater Controller (in humans during exercise).

Features


  • Precision differential pressure input that can be used to determine flow rates by suitable flow head selection
  • Provides additional amplification required to deal with a variety of flow rates,from fractions of a liter per minute (mice and rats) to a thousand liters per minute (adult humans during exercise)
  • Additional programmable filtering to remove unwanted signal frequencies
  • Software controlled zeroing for offset removal

Details

Product Code


FE141
Spirometer

Technical


Input

  • Connection type: Two pipes for airflow physically connected by plastic tubes to flow head
  • Max Range: ±1 Inches H2O
  • Amplification ranges: ±20 mV to ±500 mV full scale in 5 steps (combined PowerLab and Spirometer)
Volts Inches H2O Resolution
±500 mV ±1 15.6 μV
±200 mV ±0.4 6.25 μV
±100 mV ±0.2 3.125 μV
±50 mV ±0.1 1.56 μV
±20 mV ±0.04 0.625 μV
  • Max Input Pressure: ±28.1 Inches H2O (7 kPa)
  • Temperature Drift: 0.05 % of full scale per °C
  • Max zero pressure offset: < 1 % full scale, software removable
  • Response time: 1 ms (10-90 % full scale)
  • Linearity: ±0.5 % full scale
  • Repeatability: ±0.25 % full scale
  • Long Term Stability: ±0.5 % full scale
  • Warm Up Time: ~ 2 minutes

Filters

  • Low-pass Filtering: 1, 10 and 100 Hz (software selectable) using fourth order Bessel filter.

Control Port

  • I2C port: Provides control and power.
  • Interface communications rate of ~50 Kbits/s.

Physical Configuration

  • Dimensions (h × w × d): 55 mm × 120 mm × 260 mm (2.2" × 4.7" × 10.2")
  • Weight: 1.2 kg (2 lb 11 oz)
  • Power requirements: 1.5 W
  • Operating temperature range: 5 to 35 °C, 0 to 90% humidity (non-condensing)

ADInstruments reserves the right to alter these specifications at any time.

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