Omron E39-R42 Reflector: Technical Guide and Application Manual
Selecting a sensor requires more than just checking the sensing distance. The Omron E39-R42 is a Reflector thatoperates at Passive and stands out in photoelectric sensor applications applications with field-tested reliability.
Omron’s strength lies in offering complete automation subsystems rather than isolated components. The Omron Sensor lineup complements this product by providing the detection layer.
What Is the Omron E39-R42 Reflector?
The Omron E39-R42 is a Reflector rated at Passive designed to reliably handle photoelectric sensor applications applications. Key engineering features include reflector for retro-reflective sensors, high reflection, ip67.
What separates this sensor from generic alternatives is in the details: reflector for retro-reflective sensors, high reflection, ip67. Operating at Passive, it integrates straightforwardly into standard industrial automation systems.
Technical Specifications
The table below summarises the main technical parameters of the Omron E39-R42. For complete specifications, refer to the official Omron product datasheet.
| Parameter | Value |
|---|---|
| Product Type | Reflector |
| Operating Voltage | Passive |
| Output Type | Passive |
| Key Features | Reflector for retro-reflective sensors, high reflection, IP67 |
| Mounting | Screw mount |
| Lifetime | Optical |
| Operating Temperature | -25°C to +70°C |
| Compatible Accessory | E3S/E3Z sensors |
Where Is It Used?
The Omron E39-R42 Reflector is commonly specified for the following applications:
- Photoelectric sensor applications
- Long-range detection
- Industrial automation
Across these use cases, the consistent requirement is reliable detection — often in environments where an unplanned fault would create significant disruption. The Omron E39-R42 is designed with exactly those conditions in mind.
Installation Notes
The Omron E39-R42 Reflector follows standard industrial mounting practice. Before mounting, ensure the target surface is clean and free from metal debris. After mounting, test the signal output and verify that the LED indicator responds correctly.
For ongoing maintenance, keep the sensor lens clean, check cable connections, and periodically test that the LED indicator functions correctly. Early intervention avoids the much larger cost of an unplanned production stop.
Why Choose the Omron {c}?
The case for choosing the Omron E39-R42 Reflector is not built on marketing alone. It rests on measurable factors: tested sensing distance, IP67 protection rating certification, and a global support network.
Frequently Asked Questions
What is the difference between the Omron E39-R42 and a mechanical limit switch?
The Omron E39-R42 Reflector performs contactless detection, meaning it requires no physical contact with the target. This means longer life and higher switching frequency.
How does temperature affect the Omron E39-R42?
The Omron E39-R42 Reflector delivers reliable performance across its specified operating temperature range. At extreme temperatures, sensing distance may shorten.
Can multiple Omron E39-R42 sensors be mounted side by side?
Yes, but leave sufficient spacing between sensors to avoid mutual interference (crosstalk). The minimum spacing is stated in the datasheet.
Does the Omron E39-R42 have a test function?
The Omron E39-R42 Reflector is equipped with an LED indicator, allowing you to visually monitor the sensor’s operating status.
What is the warranty period for the Omron E39-R42?
Omron provides a standard 12-month manufacturer warranty on products purchased through authorised distributors.