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Contrast Scanners
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Contrast Scanners
Contrast scanners function energetically according to the principle of photoelectric proximity switches. At a constant scanning distance, up to 30 grey tones from a scale ranging from black to white can be distinguished. This property is essential for detecting contrast marks, for example printed colour bars


SICK contrast scanners

KT KT 10
Ambient temperature -10°C ... +60°C
Connection type connector socket
Dimensions (W x H x D in mm) 30,4 x 53 x 80
Protection category 67
Supply voltage DC 12 ... 30 V
Switching frequency 25 kHz
Switching outputs NPN / PNP
Type of light red light, green light, blue light
Remarks 3 light emitters: red, blue, green. Optimum light emitter is selected automatically

Programming by teach-in: manually or by cable

Very narrow, precise light spot

High geometrical resolution

KT KT 2
Ambient temperature -25°C ... +60°C
Connection type connector socket
Dimensions (W x H x D in mm) 15 x 49 x 41.5
Protection category 67
Range (scanning mode) in mm 13.5
Supply voltage DC 10 ... 30 V
Switching frequency 1.5 kHz
Switching outputs PNP / NPN
Type of light green light, red light
Remarks Red or green light transmitter

Sensitivity adjustable

Light- or dark-switching selectable via control cable

Switching frequency 10 kHz

NPN and PNP switching output

KT KT 5-2
Ambient temperature -10°C … +55°C
Connection type connector socket
Dimensions (W x H x D in mm) 30.4 x 56 x 87.4
Protection category 67
Range (scanning mode) in mm 10 / 20 / 40
Supply voltage DC 10 … 30 V
Switching frequency 10 kHz
Switching outputs NPN / PNP
Type of light green light

KT KT 5L
Ambient temperature -10°C … +40°C
Analog output 0 … 10 mA
Connection type connector socket
Dimensions (W x H x D in mm) 30.4 x 87.4 x 56
Protection category 67
Range (scanning mode) in mm 150
Supply voltage DC 10 … 30 V
Switching frequency 10 kHz
Switching outputs PNP
Type of light laser, red; class 2
Remarks Laser class 2

Adjustment switch

Long scanning distance

Accurate recording of very small marks

switching frequency 10 kHz

KT KTL 5-2
Ambient temperature -10°C ... +55°C
Connection type connector socket
Dimensions (W x H x D in mm) 30,4x53x118,5
Protection category 67
Supply voltage DC 10 ... 30 V
Type of light green light
Remarks Green light

Switching thershold adjustable

Insensitive to ambient light

Adjustment switch

Switching frequency 10 kHz

High contrast resolution

Fibre-optic cable for high temperature

NT 6
Ambient temperature 0 °C … +50 °C
Connection type cable / connector socket
Dimensions (W x H x D in mm) 30.4 x 64 x 80
Protection category 67
Range (scanning mode) in mm 9 +/- 2
Supply voltage DC 10 … 30 V
Switching frequency 10 kHz
Switching outputs B / PNP / analog 0,15 ... 6 V
Type of light red light / green light
Remarks LED light source with two switch-selectable spectral ranges

Lens position selectable

Light- or dark-switching selectable

Rapid response times

NT 8
Ambient temperature 0°C … +55°C
Connection type cable
Dimensions (W x H x D in mm) 30 x 58,5 x 76
Protection category 67
Range (scanning mode) in mm 9 +/- 2
Supply voltage DC 10 … 30 V
Switching frequency 10 kHz
Switching outputs NPN / PNP
Type of light white light
Remarks White light source

Light- or dark-switching selectable

Rapid response times

Adjustable switching threshold

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