E3ZM-R81 2M

Compact Photoelectric Sensor with Stainless Steel Housing


Retro-reflective with M.S.R. function, Sensing distance: 100 mm to 4 m, Light-ON/Dark-ON selectable, PNP output, Pre-wired models (2 m)

Sensing method Retro-reflective with M.S.R. function
Sensing distance 100 mm to 4 m (When using the E39-R1S)
100 mm to 3 m (When using the E39-R1)
Light source Red LED (660 nm)
Connection method Pre-wired models (Cable length: 2 m

Item list of E3ZM

ShapeSquare type
Sensing methodRetro-reflective with M.S.R. function
Sensing distance100 mm to 4 m (When using the E39-R1S)
100 mm to 3 m (When using the E39-R1)
Standard sensing objectOpaque: 75 mm dia. min.
Directional angle3 to 10 °
Light sourceRed LED (660 nm)
Power supply voltage10 to 30 VDC ripple (p-p) 10% included
Current consumption25 mA max.
Control outputPNP open collector
30 VDC max.
Load current: 100 mA max.
Residual voltage: 2 V max.
Operation modeLight-ON/Dark-ON selectable
Protective circuitOutput short-circuit protection, Output reverse polarity protection, Power supply reverse polarity protection, Mutual interference prevention
Response time1 ms max.(Operate or reset)
Sensitivity settingSingle-turn adjustment
Ambient illuminanceIncandescent lamp: 3000 lux max., Sunlight: 10000 lux max.
Ambient temperatureOperating: -25 to 55℃
Storage: -40 to 70℃
Ambient humidityOperating: 35 to 85%
Storage: 35 to 95%
Insulation resistance20 MΩ min. (at 500 VDC)
Dielectric strength1000 VAC 50/60 Hz 1 min
Vibration resistanceDestruction: 10 to 55 Hz, 1.5 mm double amplitude each in X, Y, and Z directions for 2 h
Shock resistanceDestruction: 500 m/s**2 3 times each in X, Y and Z directions
Degree of protectionIEC: IP67
IP69K (DIN40050-9)
Connection methodPre-wired models (Cable length: 2 m
IndicatorOperation indicator (yellow), Stability indicator (green)
WeightPackage: Approx. 90 g
AccessoriesInstruction manual
MaterialCase: SUS316L
Lens: Methacrylate resin
Display: PEI (Polyetherimide)
Adjustment: PEEK
Seals: Fluorocarbon rubber
  • Dimensions

  • Output circuit diagram

Timing chart

  • Parallel operating range

  • Setting distance

Excess gain ratio vs. setting distance


Compact Photoelectric Sensor with Stainless Steel Housing


about this Product