KELLER CellaPort PT 14-Serie Kurzanleitung Seite 9

Quick start guide CellaTemp PT
smoke in the viewing path that weakens the infrared radiation. The inte-
grated traffic light function in the viewfinder signals an inadmissible par-
tial illumination and the measurement is stopped.
Performing a measurement
1) Traffic light indicates
2) Measurement area
3) Target object
The two-colour pyrometer detects the infrared radiation of the target ob-
ject on two wavelengths. The temperature is then defined by the ratio of
these two signals. The emissivity, i.e. the radiation characteristics of the
target may change due to the nature of the surface or in relation to the
temperature, but with simultaneous changes over both wavelengths
there is no influence on the measurement.
Please note: Changing the emissivity ratio can compensate for
the difference between measured temperature and true tem-
perature when selective interfering factors or material-related
different emissivities are affecting Lambda 1 and Lambda 2.
Press the ON button to switch on the de-
vice. Measurement is in progress as long
as you press the ON button. The temper-
ature (depending on the configured
mode) is displayed on the rear panel
when you release the ON button. As an
option, the measurement readings can be
transmitted via interface.
EN