Omron E3ZR-C Photoelectric Sensors Oil Resistant


Omron E3ZR-C Photoelectric Sensors use high-frequency oscillation. They resist heat, chemicals, and water better than Rectangular Sensors. They are available in both shielded and unshielded models.

Proximity Sensors are available in models using high-frequency oscillation to detect ferrous and non-ferrous metal objects and in capacitive models to detect non-metal objects. Models are available with environment resistance, heat resistance, resistance to chemicals, and resistance to water.

Omron E3ZR-C Photoelectric Sensors Features

  • Fluororesin cables that strongly resist cutting
  • Sealing methods that prevent gaps at joints block the ingress of cutting
  • IP67G * degree of protection (JIS C 0920 Annex 1)


Sensing method Through-beam Retro-reflective with MSR function Diffuse-reflective
Model NPN output E3ZR-CT61@ (-M1TJ) E3ZR-CR61@ (-M1TJ) E3ZR-CD61@ (-M1TJ)
Item PNP output E3ZR-CT81@ (-M1TJ) E3ZR-CR81@ (-M1TJ) E3ZR-CD81@ (-M1TJ)
Sensing distance 30 m 2.5 m [100 mm] *1 (Using E39-R1R) 0.5 m
(White paper 300 ´ 300 mm)
Standard sensing object Opaque: 12-mm dia. min. Opaque: 75-mm dia. min.
Differential travel 20% of sensing distance max.
Directional angle Emitter, Receiver: 3° to 15° (Distance between emitter and receiver. Rated sensing distance) Sensor: 2° to 10° Reflector: 30° (Distance to Reflector. Rated sensing distance)
Light source (wavelength) Red LED (624 nm) Red LED (660 nm) Red LED (624 nm)
Power supply voltage 12 to 24 VDC ±10%, ripple (p-p) 10% max.
Current consumption 35 mA max. 30 mA max.
(Emitter 15 mA max., Receiver 20 mA max.)
Control output Output power supply voltage: 26.4 VDC max., Output current: 100 mA max. (Residual voltage: 2 V max.) Open-collector output (NPN/PNP output depending on model)
Reversed power supply polarity protection, output short-circuit protection, and reversed output polarity protection Reversed power supply polarity protection, output short-circuit protection, reversed output polarity protection, and mutual interference prevention function (with up to two Units)
Protection circuits
Response time Operate or reset: 1 ms max.
Sensitivity adjustment None
Ambient illumination (Receiver side) Incandescent lamp: 5,000 lx max., Sunlight: 10,000 lx max.
Ambient temperature range Operating: -25 to 55°C, Storage: -40 to 70°C (with no icing or condensation)
Ambient humidity range Operating: 35% to 85%, Storage: 35% to 95% (with no condensation)
Insulation resistance 20 MÙ min. at 500 VDC
Dielectric strength 1,000 VAC, 50/60 Hz for 1 min
Vibration resistance Destruction: 10 to 55 Hz, 1.5-mm double amplitude for 2 hours each in X, Y, and Z directions
Shock resistance Destruction: 1,000 m/s2 3 times each in X, Y, and Z directions
IP67 (IEC 60529) and IP67G *2 (JIS C 0920 Annex 1)
Degree of protection Passed OMRON’s Oil-resistant Component Evaluation Standards *3 (Cutting oil type: specified in JIS K 2241:2000; Temperature: 35°C max.)
Connection method Pre-wired (standard length: 2 m), -M1TJ: Pre-wired connector (standard length: 0.3 m)
Indicators Operation indicator (orange) and stability indicator (green) (The Emitter has only a power indicator (green).)
Weight (packed state) Pre-wired models Approx. 200 g Approx. 100 g
Pre-wired connector Approx. 140 g Approx. 70 g
Housing material SUS316L
Cable material Fluororesin
Lens material Methacrylate resin (Oil-resistant high molecular weight type)
Indicator material Polyetherimide resin
Accessories Instruction manual
  1.  Values in parentheses indicate the minimum required distance between the Sensor and Reflector.
  2. The IP67G is the degree of protection which is defined according to the JIS (Japanese Industrial Standards). The IP67 indicates the same level of protection as defined by the IEC, and the G indicates that a device has resistance to oil.
  3. The Oil-resistant Component Evaluation Standards are OMRON’s own durability evaluation standards.

The Pre-wired Connector Model meets the degree of protection when it is correctly connected with an XS5@R Oil-resistant Connector.

The degree of protection is not satisfied with the part where there is no XS5FR Oil-resistant Connector connected and cable wires are uncovered. And as for the Pre-wired Models, the degree of protection is not satisfied with the part where cable wires are uncovered.

Download Catalog: Environment-resistant Series


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