User Manual
Banner Engineering Corp. • Minneapolis, MN U.S.A 
www.bannerengineering.com • Tel: 763.544.3164
4      P/N 121526 rev. A 
      T18 Sensors — dc-Voltage Series
Supply Voltage and 
Current
10 to 30V dc (10% max. ripple); supply current (exclusive of load current):
  Emitters, Non-Polarized Retro, Diffuse: 25 mA 
  Receivers: 20 mA 
  Polarized Retroreflective: 30 mA 
  Fixed-Field: 35 mA
Supply Protection 
Circuitry
Protected against reverse polarity and transient voltages
Output Configuration  SPDT solid-state dc switch; NPN (current sinking) or PNP (current sourcing), depending on model 
Light Operate:  N.O. output conducts when sensor sees its own (or the emitter’s) modulated light  
Dark Operate:    N.C. output conducts when the sensor sees dark; the N.C. (normally closed) output may be wired as a 
normally open marginal signal alarm output, depending upon hookup to power supply 
Output Rating  150 mA maximum (each) in standard hookup. When wired for alarm output, the total load may not exceed 150 mA. 
OFF-state leakage current: < 1 microamp @ 30V dc 
ON-state saturation voltage: < 1V @ 10 mA dc; < 1.5V @ 150 mA dc
Output Protection 
Circuitry
Protected against false pulse on power-up and continuous overload or short circuit of outputs
Output Response Time Opposed mode: 3 ms ON, 1.5 ms OFF 
Retro, Fixed-Field and Diffuse: 3 ms ON and OFF
NOTE: 100 ms delay on power-up; outputs do not conduct during this time.
Repeatability Opposed mode: 375 µs 
Retro, Fixed-Field and Diffuse: 750 µs 
Repeatability and response are independent of signal strength.
Adjustments Non-polarized retro and diffuse models (only) have a single-turn rear-panel Sensitivity control (turn clockwise to increase 
gain).
Indicators Two LEDs (Green and Yellow) 
Green ON steady:  power to sensor is ON 
Green flashing: output is overloaded 
Yellow ON steady:  N.O. output is conducting 
Yellow flashing:  excess gain marginal (1 to 1.5x) in light condition
Construction
PBT polyester housing; polycarbonate (opposed-mode) or acrylic lens
Environmental Rating
Leakproof design rated NEMA 6P, DIN 40050 (IP69K)
Connections
  2 m (6.5') or 9 m (30') attached cable or 4-pin Euro-style quick-disconnect fitting 
Operating Conditions
Temperature: −40° to +70° C (−40° to +158° F) 
Maximum relative humidity: 90% at 50° C (non-condensing)
Vibration and Mechanical 
Shock
All models meet Mil. Std. 202F requirements. Method 201A (Vibration; frequency 10 to 60 Hz, max., double amplitude 
0.06" acceleration 10G). Method 213B conditions H&I (Shock: 75G with unit operating; 100G for 
non-operation)
 Certifications
Specifications






