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Home / All / Sensor Products / Photoelectric Sensors / DK-GF18 Series / DK-GF18 Series DC Through-beam Photoelectric Sensors
DK-GF18 Series DC Through-beam Photoelectric Sensors
DK-GF18 Series DC Through-beam Photoelectric SensorsDK-GF18 Series DC Through-beam Photoelectric Sensors

DK-GF18 Series DC Through-beam Photoelectric Sensors

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CategoriesDK-GF18 Series
BrandDADISICK
Product SpecificationsDK-GF18 Series / DC Through-beam (6 models)
SeriesDK-GF18 Series
Specification groupDC 3-wire / 4-wire Through-beam
Part numbers in group6
Sensing distance15000 mm
Light source850 nm infrared
Operating voltage10-30 V DC
Output optionsNPN / PNP, NO / NC / NO+NC
Protection levelIP65
Housing50 x 50 x 18 mm, ABS
Response time5 ms
ConnectionØ5 mm 2 m PVC cable
WeightAbout 84 g x 2
CertificationCE, RoHS
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Detail Information

DADISICK · DK-GF18 Series · Group C

DC Through-beam Photoelectric Sensors

DC 3-wire and 4-wire through-beam sensor pairs with a 15000 mm sensing distance. 6 orderable part numbers covering NPN and PNP outputs in NO, NC and NO+NC configurations. Each set contains a transmitter and a receiver.

  • 6 part numbers
  • 15000 mm
  • 10-30 V DC
  • NPN / PNP
  • IP65
  • Transmitter + receiver
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DK-GF18 series DC through-beam photoelectric sensor transmitter and receiver
Through-beam versions are supplied as a transmitter and receiver pair.

Orderable models in this group

This group contains 6 orderable part number(s). Choose the output type and sensing distance you need, then quote the exact part number from the table below.

Part numberOutputWiresSensing distance
DK-GF18-1500NO-ZBANPN NO3-wire15000 mm
DK-GF18-1500NC-ZBANPN NC3-wire15000 mm
DK-GF18-1500PO-ZBAPNP NO3-wire15000 mm
DK-GF18-1500PC-ZBAPNP NC3-wire15000 mm
DK-GF18-1500NS-ZBANPN NO + NC4-wire15000 mm
DK-GF18-1500PS-ZBAPNP NO + NC4-wire15000 mm

Output codes: NO / NC / NS = NPN NO / NC / NO+NC; PO / PC / PS = PNP NO / NC / NO+NC; J = relay output. 3-wire models use one switched output, 4-wire models provide NO + NC, and relay models provide NO + NC contacts.

Technical parameters

ParameterValue
Sensing distance15000 mm
Light source850 nm infrared light
Standard detection object200 x 200 mm white cardboard
Output optionsDC 3-wire / 4-wire NPN or PNP, NO / NC / NO+NC
Operating voltage10-30 V DC
No-load current<15 mA
Maximum load current150 mA
Leakage current<0.01 mA
Voltage drop<1.5 V
Switching frequency100 Hz
Response time5 ms
Short-circuit protectionYes
Overload protection point300 mA
Switching hysteresis<15% (Sr)
Repeat accuracy<5% (Sr)
Protection levelIP65
Working temperature0 °C to +55 °C
Connection methodØ5 mm 2 m PVC cable; transmitter 2x0.33 mm², receiver 3x0.33 mm² / 4x0.33 mm²
Housing50 x 50 x 18 mm, ABS
IndicatorRed LED
WeightAbout 84 g x 2
CertificationCE, RoHS

Every value is taken from the DK-GF18 technical data sheet, revision dated 2026-04-20. Dimensions are for reference only; please refer to the actual measurement.

Dimensions

DK-GF18 through-beam dimension drawing 50 mm x 50 mm x 18 mm
Common 50 x 50 x 18 mm outline for both units; 33 mm body depth and Ø5 mm cable entry.
DK-GF18 sensor with 2 m PVC cable and reflective board
Sensor with 2 m PVC cable; a reflective board is supplied with retro-reflective versions and a transmitter / receiver pair with through-beam versions.

Wiring

DK-GF18 DC 3-wire and 4-wire NPN PNP NO NC wiring diagrams
All six DC 3-wire / 4-wire NPN and PNP NO, NC and NO+NC connections used by this group.
Wire colourFunction
Brown (1)+10-30 V DC
Blue (3)0 V
Black (2 / 4)Switched output to load
White (2)Second switched output on 4-wire models
GrayNot used

Confirm the wiring against the label of the unit received before energising. Do not connect the output to a load exceeding the rated current.

Request a quote for this specification group

Tell us the exact part number from the model table, the target object and distance, your supply voltage, and the quantity. Our engineers will confirm the configuration and send a quotation. This is a general-purpose photoelectric sensor for object detection; it is not a safety-rated device and must not be used for personnel protection.

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