PID lamp (Photoionisation detector lamp)

PID lamp is most commonly used in VOC gas detection, in gas chromatography (GC) and sample ionisation for mass spectrometry.

PID lamp

The PID technique uses a lamp with known photon energies in the vacuum ultraviolet (VUV) region.
The output from the lamp is used to photoionise gaseous molecules with ionisation potentials lower than the photon energy emitted. Typical photoionisation detectors measure volatile organic compounds (VOCs) and other gases in concentrations from the ppm to ppb level.

Heraeus offers a complete range of PID lamps with the highest quality in terms of intensity, spectral purity and long life. Both DC and RF excited lamps are available with a variety of gas fills and window materials. The right power supplies are also provided.

Customers can also benefit from our design expertise, as the Heraeus Technical Team works closely with OEMs to design and build products to meet their specific dimensional and performance requirements.

Your advantages

  • DC or RF driven PID lamps for hand-held and fixed installations
  • Customized lamp designs and dimensions to fit your specific application
  • Different gas fills and window materials with photon energy 8.4 – 11.8 eV for more selectivity in gas detection
  • High purity window material for better transmission and higher intensity
  • Proprietary getter technology and high purity gas fill for longer lamp life
  • Reliable processes and highest quality lamps due to automated production

Applications areas

  • VOC gas detection
  • Gas Chromatography (GC)
  • Mass Spectrometry (MS)
  • Field monitoring of air and soil
  • Emergency first response
  • Jar headspace screening
  • Leak detection
  • Personnel safety in confined spaces

Types and accessories

PID lamp RF excited

Heraeus supplies all kinds of PID lamps:

  • Various gas fillings (e.g. xenon, krypton, argon)
  • Various window materials with different cut-off wavelengths
  • Lamps with DC or RF (radio frequency excitation)
  • Ionisation energies from 8.4 eV to 11.8 eV
PID lamp DC excited
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