MICRO-EPSILON thermoMETER CTVideo, Инструкция по эксплуатации

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Optics
thermoMETER CTVideo
4. Optics
The vario optics of the CTVideo allows a smooth focusing of the optics to the desired distance. The sensors
are available in two optic versions:
Optics Focus adjustable in the range
SF 200 mm til infinity
CF 90 mm til 250 mm
The size of the measuring object and the optical resolution of the infrared thermometer determine the maxi-
mum distance between sensor and measuring object.
Avoid that the measurement object fills the field of optics completely.
> Measurement error
Consequently, the spot should at all times have at least the same size like the object or should be smaller
than that. The following tables show the diameter of the measuring spot for some selected distances. The
spot size refers to 90 % of the radiation energy.
The distance is always measured from the front edge of the sensor.
3L: SF optics (D:S = 60:1)
Spot size mm 3.3 5.0 7.5 11.7 18.3 26.7 41.7 83.3
Measurement
distance mm 200 300 450 700 1100 1600 2500 5000
3L: CF optics (D:S = 60:1)
Spot size mm 1.5 2.0 2.5 3.0 3.5 4.2
Measurement
distance mm 90 120 150 180 210 250
3H: SF optics (D:S = 100:1)
Spot size mm 2.0 3.0 4.5 7.0 11.0 16.0 25.0 50.0
Measurement
distance mm 200 300 450 700 1100 1600 2500 5000