INTRO International GmbH
INTRO International GmbH

Basis weight sensor BW4/5N



BW4/5N

Radiometric principle.

Beta transmission measurement principle.

  • Photomultiplier with synthetic scintillator. Higher sensitivity compared to ionisation chambers.
  • Source strength of only 1 mCi required. This is about 1/100 of the usual source strength of our competitors.
  • Digital signal processing.
  • Extreme high dynamic. Reaction times in the scope of milliseconds. Unique algorithm (hole detection).
  • Floating mean values to reduce the satistical error.
  • Integrated temperature compensation.
  • Integrated source aging compensation.
  • Integrated air gap compensation.
  • Compact sensor dimensions and a low weight are important advantages for the use in traversing measurement units.
  • Suitable as single sensor system for fixed mounted use.
  • No calibration necessary.
  • Product type dependent linearisation using a teach-in procedure for adaption to the products to measure.

Art. No.

BW4N-DS
Measurement range: 0 - 1000 g/m² (Kr85)
special license required
Resolution: +- 0.1 g/m² (cyclus time)
Measurement speed: 10 measurements/s
Temperature range: 0 - 50 °C

810240

BW5N-DS
Measurement range: 0 - 4000 g/m² (Sr90)
special license required
Resolution: +- 0,1 g/m² (cyclus time)
Measurement speed: 10 measurements/s
Temperature range: 0 - 50 °C

810250

Technical data



  • BW4 measurement range Kr85 up to 1000 g/m².
  • BW5 measurement range Sr90 up to 4000 g/m².
  • Resolution 0.1 g/m² (cyclus time).
  • Cyclus time from 500 ms up to 16 s.
  • Measurement spot diameter ca. 25 mm.
  • Temperature range 0 – 50 °C.
  • Supply 24V DC.

Communication



  • Via Ethernet, optional RS232.
  • Diagnostics software included.

Dimensions



Height 352 mm

Depth 175 mm

Width 350 mm

Measurement plate 350x175 mm

Weight 10 kg

Measurement technology



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