KELLER CellaTemp PX 4-Serie Bedienungsanleitung Seite 9

Quick Start Guide CellaTemp PX 4x, 5x, 6x
1 Emitted radiation
2 Sighting hole smaller than the field of view
3 Dirty lens or sighting window
4 Dust, steam and smoke in the atmosphere
5 Target smaller than the field of view and/or moves
5. Turn on the power supply of the pyrometer.
6. Focus the pyrometer
Pyrometer with through-lens sighting:
Focus the lens until target and target marker (through-lens-sighting) are both clearly visible.
Pyrometer with laser sighting:
Activate the lase spot light by pressing the mode key for 2 seconds. Observe the safety
instruction. Focus the lens until a clear round laser point is visible.
Pyrometer with camera
When aiming the pyrometer, focus the sensing head until the video image is sharp.
Pyrometer with fiber optic cable and separate optic
For pyrometer with fiber optics, the measuring head must be focused. To activate the laser,
press the MODE button on the rear panel for 2 s. Observe the laser safety instructions. For
focal adjustment, loosen the screw of the measuring head and move the inner tube to obtain
a sharp spot in the measuring area.
7. The two-color pyrometer detects the infrared radiation of the target object on two wave-
lengths. The temperature is then defined by the ratio of the two signals. The emissivity, i.e.
the radiation characteristics of the target may change due the nature of the surface or in
relation to the temperature, but with simultaneous changes over both wavelengths there is
no influence of the measurement.
Changing the emissivity ratio can compensate for the difference between measured
temperature and true temperature when selective interfering factors or material-rela-
ted different emissivities are affecting Lambda 1 and Lambda 2.
EN