Excelitas PYS 3198 TC Single-Element Pyro
Excelitas PYS 3198 TC schematic
PART/ PYS 3198 TC GX (LHi 807)

PYS 3198 Single-Channel Pyrodetector

Excelitas Single-Element Pyrodetectors combine one sensing element with the optical window, making them ideally suited for gas measurement and monitoring applications. The PYS 3198 TC GX (replacement to LHi 807) is a single channel, parallel format temperature-compensated elements detector based on lithium-tantalate (Li-Ta).

In the design for our PYS 3198 TC Pyrodetector, a single sensing element is placed in the center of the detector. For thermal compensation an additional element, (which is blinded from radiation), is connected in parallel. The TO-5 Metal Housing is equipped with an optical filter window.

For gas measurement applications with our Single-Element Pyrodetectors, typically the spectral range is narrowed to match the gas absorption in the IR range. As such the window is acting as a narrow-band optical filter.

Features

  • G2 filter
  • Single-channel PIR
  • High-responsivity Li-Ta element
  • 135◦ field-of-view
  • TO-5 metal housing for high EMI immunity

Applications

  • Non-dispersive infrared (NDIR) gas sensing
  • CO2 Channel

You can select from a variety of options for the PYS 3198 TC GX or contact us to engage a custom detector solution for your specific requirement.

	ProductPhoto_IR_PYS-3198-schematic
  • Responsivity: 3.5kV/W (typical)
  • Noise: 15 µVpp (typical) / 50 µVpp (max)
  • Operation requirements: 2.0-10V
  • Housing with optical window: TO-5, different spectral ranges available
  • Field-of-View (horiz/vert): 135°/120°
  • Responsivity: 3.5kV/W (typical)
  • Noise: 15 µVpp (typical) / 50 µVpp (max)
  • Operation requirements: 2.0-10V
  • Housing with optical window: TO-5, different spectral ranges available
  • Field-of-View (horiz/vert): 135°/120°
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