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Pyrometers

Two models of Micro-Epsilon pyrometers are available. The highest spectral sensitivity is at 2.3 μm wavelength.

model CTVM-3LSF-C3 CTVM-3H2SF-C3
temperature range 50-400 °C 200-1500 °C
spot size (~350 mm distant) 6 mm 1.5 mm

90% of the radiated energy is from the indicated spot.


sample sample holder type T×E range
Cu(111) Crystals 0.01-0.03
Ir(100) Crystals 0.05-0.07
Pd(111) Crystals 0.06-0.09
Si(111) Silicon wafer 0.3-0.5
Si(119) Pocket with clamps 0.2-0.3
Ta foil Pocket with clamps 0.2-0.3
Au foil Sapphire plates 0.1-0.2
Pd(111) STM type 0.05-0.1
Install the desired pyrometer rigidly (e.g. using Bosch profiles) near a suitable vacuum viewport, pointing it towards the sample surface. Remove the protective cap from the pyrometer optics (if present). Connect the correct blue cable to the pyrometer and switch on the respective USB port on the hub situated on the side of the left experimental rack. For some sample positions we also recommend to switch off the ionization (hot cathode) gauge; LED lights do not matter. Start the software CompactConnect and let it pair with the pyrometer. For mechanical alignment use the integrated video camera and/or the laser cross (Video and/or Laser buttons in the software, respectively). There is a mechanical rotary knob to adjust the camera focus.

Emissivity E and transmissivity T can be adjusted using Setup and Emiss. buttons in the software, both have the allowed range 0.1-1.1. Therefore, their product T×E determining the temperature reading accuracy is adjustable in the range 0.01-1.21. Our tests gave T×E values as listed in the table on the left.

If you want to calibrate the pyrometer using the information from the thermocouple touching your sample be aware that the thermocouple may show lower temperature than the real one is, depending on the quality of the thermal contact. Therefore, spot-weld the thermocouple directly to the sample if possible.

At the end of your work close the software and switch off the USB port on the hub. Before any risky manipulation with the pyrometer cover the optics with protective plastic cover.

manuals PDF: pyrometers, software

Last Updated on Tuesday, 07 May 2024 08:05