Diffuse-reflective, Background Suppression
• Miniature sensor range
• Range: 200 mm
• Sensitivity adjustment by potentiometer
• Modulated, red light 625 nm
• Supply voltage: 10 to 30 VDC
• Output: 100 mA, NPN or PNP preset
• Make and break switching function
• LED indication for output and power ON
• Protection: reverse polarity, short circuit and transients
• Cable and plug versions
• Excellent EMC performance
• Excelent colourmatching
The PA18CAB20... is part of a family of inexpensive general purpose diffuse reflective sensors with backgrund sup- pression in industrial stan- dard 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 per- formance-size ratio.
The potentiometer used for adjustmentof the sensitivity makes the sensors highly flexible.
The outputtypeisNPN or PNP and the output switcing function is NO and NC.
Housing style Housing size Housing material Housing length Detection principle Sensing distance Output type
Output configuration Connection type Sensitivity adjustment
Housing style Range Connection Orderingno.Orderingno.
Make and break switching Make and break switching
M18 Axial type200 mm CablePA 18 CAB 20 NASA PA 18 CAB 20 PASA
M18 Axial type200 mm PlugPA 18 CAB 20 NAM1SAPA 18 CAB 20 PAM1SA
Rated operating distance (Sn)Up to 200 mm, reference target: Kodak test card R27, white, 90% reflective, 100 x 100 mm
White object 90% refl. ≤ 200 mm Grey object 18% refl.≤ 200 mm Black object 6% refl. ≤ 150 mm
Blind zone 10 mm
Sensitivity control Adjustable by potentiometer
Electrical adjustment 210˚ Mecanical adjustment240˚
Temperature drift≤ 0.2%/ºC
Hysteresis (H)≤ 10%
Rated operational volt. (UB )10 to 30 VDC (ripple included)
Ripple (Urpp ) ≤ 10%
Continuous (Ie) ≤ 100 mA Short-time (I) ≤ 100 mA
(max. load capacity 100 nF)
No load supply current (Io) ≤ 20 mA @ UBmax
≤ 40 mA @ UBmin
Minimum operational current (Im) ≤ 0.5 mA
OFF-state current (Ir )≤ 100 µA
Voltage drop (Ud ) ≤ 2 VDC @ Ie max
ProtectionShort-circuit, reverse polarity and transients
Light sourceInGaAlP, LED, 625 nm Light type Red, modulated Emitter angle ± 3.0˚ @ half sensing
Ambient light≤ 30,000 lux, incandescent lamp
Operating frequency (f)≤ 500 Hz
OFF-ON (tON)≤ 1 ms
ON-OFF (tOFF ) ≤ 1 ms
Power ON delay (tv) ≤ 100 ms
Open collector NPN or PNP
Output switching functionN.O. and N.C.
Specifications are subject to change without notice (22.02.2013) 1