CS Instruments PI 500 for e.g. Portable Flow Measurement

The portable flow meter PI 500 is an all-purpose hand-held measuring instrument for many compressed air and gas applications in industry.


The portable flow meter PI 500 is an all-purpose hand-held measuring instrument for many compressed air and gas applications in industry like e.g.: Flow measurement, Pressure-/ vacuum measurement, Temperature measurement, Moisture/ dew point measurementThe graphic indication of coloured measurement curves is inimitably. Up to 100 million measured values can be stored with date and name of measuring site. The measured values can be transferred to the computer by means of a USB stick. The data can be comfortably evaluated with the CS Soft Basic software. Measured data and service reports can be issued easily and quickly.


CS Instruments

CS Instruments

CS Instruments GmbH & Co. KG with locations in 24955 Harrislee and 78052 Villingen-Schwenningen/ Tannheim, is managed by Dipl. Eng. (FH) Wolfgang Blessing as sole Managing Director.

CS Instruments GmbH was established in the year 2002 by Christian Schuldt and Wolfgang Blessing as equal shareholders/Managing Directors.

Wolfgang Blessing already was sound a specialist on the sector of compressed air technology resp. industrial measurement technology long before the establishment of CS Instruments GmbH in the year 2002. Prior to the foundation of CS Instruments GmbH Dipl. Ing. (FH) Wolfgang Blessing acted for more than 10 years as primarily responsible product manager for industrial measurement technology at a worldwide known manufacturer of measuring instruments for compressed air and gases in the Black Forest. The technical knowledge and experience matched with the long-term practical knowledge was the corner stone for the success of CS Instruments.


  • Universal sensor input for lots of common sensor signals
  • Internal rechargeable Li-Ion batteries (approx. 12h continuous operation)
  • 3.5″ graphic display / easy operation via touch screen
  • Integrated data logger for storage of the measured values
  • USB interface for reading out via USB stick
  • International: Up to 8 languages selectabel


  • Flow measurement
  • Pressure-/ vacuum measurement
  • Temperature measurement
  • Moisture/ dew point measurement


  • Display: 3.5″ touch panel TFT transmissive, graphics, curves, statistics
  • Interfaces: USB interface
  • Power supply for
    Output voltage: 24 VDC ± 10%
    Output current: 120 mA in continuous operation
  • Power supply: Internal rechargeable Li-Ion batteries, charging time approx. 4 h,
    PI 500 continuous operation> 4h depending on power consumption
    for ext. sensor
  • Power adapter: 100 – 240 VAC / 50 – 60 Hz, 12 VDC – 1A, safety class 2 only for
    use in dry rooms
  • Dimensions: 82 x 96 x 245 mm
  • Housing material: PC/ABS
  • Weight: 450 g
  • Operating temperature:
    0…50 °C ambient temperature
  • Storage temperature: -20 to +70°C
  • EMC: DIN EN 61326
  • Sensor input: For connection of pressure and temperature sensors, clamp-on
    ammeters, third-party sensors with 4 … 20 mA, 0-10 V, Pt 100,
    Pt 1000, Modbus
  • Memory Size: 16 GB memory card standard