M18-3 Series

Overview

  • Complete family of sensors, all housed in the popular 18 mm threaded metal barrel
  • Economical photoelectric sensors for cost sensitive and high volume installations
  • Nickel plated brass housing is well protected against industrial fluids and mechanical damage
  • Powerful and bright visible red emitter beam for easy alignment and setup
  • Highly visible output and dual-function power and stability indicators
  • Advanced ASIC technology is resistant to fluorescent light and offers higher level of crosstalk avoidance
  • Wide operating temperature range: −40 °C to +70 °C (−40 °F to +158 °F)
  • Robust 250° adjustment potentiometer on select models

Product Specifications

Supply Voltage10 to 30 V dc for ambient temperature ≤ 55 °C

10 to 24 V dc for ambient temperature > 55 °C
Supply Current (Exclusive of Load Current)Diffuse: 16 mA

Opposed Mode Emitters: 17 mA

Opposed Mode Receivers: 8 mA

Retroreflective and Polarized Retroreflective: 16 mA
Supply Protection CircuitryProtected against reverse polarity and transient voltages
Output Protection CircuitryProtected against false pulse on power-up and continuous short

circuit of outputs. Short circuit protection at elevated

temperature may require a power cycle to reset.
Output Rating≤ 50 mA total current for ambient temperatures > 55 °C

≤ 100 mA total current through both outputs ≤ 55 °C

OFF-State Leakage Current: < 50 μA at 30 V dc

ON-State Saturation Voltage: < 1.5 V at 10 mA; < 3.0 V at 100

mA
Output ConfigurationComplementary PNP or NPN by model number
Output Response TimeResponse is independent of signal strength

Opposed mode: 1.5 milliseconds ON, 1.0 milliseconds OFF

Retro, Polarized Retro, and Diffuse: 1.5 milliseconds ON, 0.75

milliseconds OFF

Delay on Power-up: 100 milliseconds; outputs do not conduct

during this time
IndicatorsThree LEDs (1 green, 2 amber)

Green solid: indicates power applied and sensor ready

Green flashing: indicates marginal sensing signal

Amber solid: indicates Pin 4 (black wire) output conducting
AdjustmentsDiffuse (DL, DS), Emitter (ES), Receiver (RS), Polarized

Retroreflective (LPC), Retroreflective (LV) models: Single turn

sensitivity (gain) adjustment potentiometer

Emitter Beam Inhibit (EJ) models: Tie black wire to 10 to 30 V

dc for beam inhibit
ConstructionHousing: Nickel-plated brass

Front Window: PMMA

Indicator Windows: Clear Polysulfone (PSU)

Indicator cover and gain pot driver: Black PSU

Cable: PVC jacket

Pigtail QD: Nickel-plated brass and PVC jacket

QD connector and mounting nuts: Nickel-plated brass
Emitter LEDVisible red
RepeatabilityRepeatability is independent of signal strength

Opposed mode: 170 microseconds

Retro, Polarized Retro, and Diffuse modes: 100 microseconds
Operating ConditionsTemperature: −40 °C to +70 °C (−40 °F to +158 °F)

95% at +50 °C maximum relative humidity (non-condensing)
Environmental RatingIEC 60529 IP67 and IP69K
Vibration and Mechanical ShockAll models meet Mil. Std. 202F requirements. Method 201A

(Vibration; frequency 10 to 60 Hz, max., double amplitude 0.06

in acceleration 10G). Method 213B conditions H&I (Shock: 75G

with unit operating; 100G for non-operation)

English

Data Sheets

Document Name Part Number File Size Download
1. M18-3 Nickel-Plated Brass 18 mm Barrel Sensors -- Datasheet 185178 Download

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