Carlo Gavazzi / Diffuse Reflective / Photoelectric Sensors – PA18CRD08PASA –
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Carlo Gavazzi / Diffuse Reflective / Photoelectric Sensors - PA18CRD08PASA

Carlo Gavazzi / Diffuse Reflective / Photoelectric Sensors – PA18CRD08PASA

The PA18CAD10… is part of a family of inexpensive general-purpose diffuse reflective sensors in industrial standard 18 mm cylindrical ABS housing.
The sensors are useful in applications where high-accuracy detection, as well as small size, is required.
Compact housing and high-power LED for excellent performance-size ratio.
The potentiometer used for adjustment of the sensitivity makes the sensors highly flexible. The output type is NPN or PNP and the output switching function is NO and NC.

  • Miniature sensor range
  • Range: 1 m (Axial), 0.8 m (Radial)
  • Sensitivity adjustment by potentiometer
  • Modulated, red light 625 nm
  • Supply voltage: 10 to 30 VDC
  • Output: 100 mA, NPN or PNP, N.O & N.C.
  • Degree of protection IP67, IP69K
  • LED indication for output, stability and power ON
  • Protection: reverse polarity, short circuit and transients
  • Cable and plug versions
  • Excellent EMC performance

Ordering Key

Type Selection

Housing style Range Sn Connection Ordering no.
Make & break switching
Ordering no.
Make & break switching
M18 Axial type 1 m Cable PA 18 CAD 10 NASA PA 18 CAD 10 PASA
M18 Axial type 1 m Plug PA 18 CAD 10 NAM1SA PA 18 CAD 10 PAM1SA
M18 Radial type 0.8 m Cable PA 18 CRD 08 NASA PA 18 CRD 08 PASA
M18 Radial type 0.8 m Plug PA 18 CRD 08 NAM1SA PA 18 CRD 08 PAM1SA


Rated operating distance (Sn)
Axial type (A)
Radial type (R)
Up to 1 m,
Up to 0.8 m
reference target Kodak test card R27, white, 90% reflective, 200 x 200 mm
Blind zone 2 mm @ Sn max
Sensitivity control
Electrical adjustment
Mechanical adjustment
Adjustable distance
Axial types
Radial types
Adjustable by potentiometer
240˚50-1000 mm
50-800 mm
Temperature drift ≤ 0.2%/ºC
Hysteresis (H)
(differential travel)
≤ 20%
Rated operational volt. (UB) 10 to 30 VDC (ripple included)
Ripple (Urpp ) ≤ 10%
Output current
Continuous (Ie)
Short-time (I)
≤ 100 mA
≤ 100 mA
(max. load capacity 100 nF)
No load supply current (Io) ≤ 25 mA @ 24 VDC
Minimum operational current (Im) 0.5 mA
OFF-state current (Ir) ≤ 100 µA
Voltage drop (Ud) ≤ 2.0 VDC @ 100 mA
Protection Short-circuit, reverse polarity and transients
Light source InGaAlP, LED, 625 nm
Light type Red, modulated
Sensing angle ± 2º
Ambient light 30.000 lux
incandescent lamp
Operating frequency 500 Hz
Response time
≤ 1.0 ms
≤ 1.0 ms
Power ON delay (tv) ≤ 100 ms
Output function
Switching function
NO and NC
Output ON
Signal stability and power ON
LED, yellow
LED, green
Installation category
Pollution degree
Degree of protection
III (IEC 60664/60664A; 60947-1)
3 (IEC 60664/60664A; 60947-1)
IP 67, IP 69K*
Ambient temperature
-25° to +60°C (-13° to +140°F)
-40° to +70°C (-40° to +158°F)
Vibration 10 to 150 Hz, 1 mm/15 g (IEC 60068-2-6)
Shock 30 g / 11ms, 3 pos, 3 neg per axis
(IEC 60068-2-6, 60068-2-32)
Rated insulation voltage 500 VAC (rms)
IEC protection class III
Housing material
Front material
Cable gland
Trimmer shaft
Mounting bracket
ABS, grey
PMMA, red
POM, Black
POM, Dark Grey
PBTP, black
PPA, black
PVC, grey, 2 m
4 x 0.25 mm2, Ø = 4.5 mm
M12, 4-pin
Weight With cable: 85g
With plug: 25 g
CE-marking Yes
Approvals cULus (UL508) supply class 2

The IP69K test according to DIN 40050-9 for high-pressure, high-temperature wash-down applications. The sensor must not only be dust tight (IP6X), but also able to withstand high-pressure and steam cleaning. The sensor is exposed to high-pressure water from a spray nozzle that is fed with 80°C water at 8’000 – 10’000 KPa (80–100bar) and a flow rate of 14–6L/min. The nozzle is held 100 –150 mm from the sensor at angles of 0°, 30°, 60° and 90° for 30s each. The test device sits on a turntable that rotates with a speed of 5 times per minute. The sensor must not suffer any damaging effects from the high-pressure water in appearance and function.

Operation Diagram

Wiring Diagrams

Detection Diagram

Excess Gain

Signal Stability Indication


Dimensions Radial version

Dimensions Axial version

Mounting Systems

Installation Hints

Delivery Contents

  • Photoelectric switch: PA 18 CAD04…WS
  • Installation instruction on plastic bag
  • Screwdriver
  • Mounting bracket APA18-MB1
  • 2 M18 locknuts
  • Packaging: Plastic Bag


  • Connector type CONG1A.. / CONB14NF.. series

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