IS 12 / IGA 12 Manual Introduction • 11
*Additional measurement uncertainty due to offset drift of the signal converter at long
temperature ranges. Tc = measuring temperature up to which an additional measurement
uncertainty occurs when the ambient temperature differs from the reference temperature of
23 °C
Note: The calibration / adjustment of the instruments was carried out in accordance
with VDI/VDE directive “Temperature measurement in industry, Radiation
thermometry, Calibration of radiation thermometers”, VDI/VDE 3511, Part 4.4.
For additional details on this directive, see http://info.lumasenseinc.com/calibration
or
order the directive from “Beuth Verlag GmbH” in D-10772 Berlin, Germany.
2.4 Dimensions
Pyrometer with fixed optics: Pyrometer with focusable optics: