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Specification & Description
| Specification | Description |
|---|---|
| Part Number | E3X-A51 |
| Alternative Part Number | E3XA51 |
| Manufacturer | Omron |
| Supply Voltage | 12-24 VDC ±10%, 10% ripple max. |
| Current Consumption | 40 mA max. |
| Required Fiber Optic Cables | All E32-series |
| Light Source | Pulse-modulated green LED (565 nm) |
| Operation Modes | Light-ON, Dark-ON or SET modes (switch selectable) |
| Sensitivity | 8-turn potentiometer with clutch and indicator |
| Mutual Interference Protection | Not provided |
| Control Output Type | PNP — open collector |
| Max. Load | 100 mA, 40 VDC max. |
| Max. ON-state Voltage Drop | 1 VDC max. at 100 mA |
| Response Time | 200 µs max. ON: 20 µs max., OFF: 30 µs max. |
| Timing Functions | OFF-delay, 0.01 to 0.1 sec, adjustable; switch selectable |
| Alarm Output | 50 mA, 40 VDC max. |
| Check Input | Light OFF: 1.5 V max. |
| Circuit Protection | Output short circuit protection, DC power reverse polarity protection |
| Indicators | Light received (red LED) and output stability (green LED) |
| Materials | Case: Heat-resistant ABS, Cover: Polycarbonate |
| Mounting | DIN rail track, or on flat surface through holes in bracket (provided) |
| Connections | Prewired 5 conductor cable, 2 m (6.5 ft) |
| Weight | 100 g (3.5 oz.) with 2 m cable |
| Enclosure Rating | IEC IP66 (with cover on) |
| Ambient Operating Temperature | -25° to 55°C with no ice buildup (-13° to 131°F) |
| Storage Temperature | -40° to 70°C (-40° to 158°F) |
The Omron E3X-A51 is a high-performance fiber-optic photoelectric sensor designed to offer precise and reliable detection in a variety of industrial applications. This sensor is part of the E3X series, which is known for its fast response times, extended sensing distances, and self-diagnostic functions.
Equipped with a PNP open collector output, the E3X-A51 operates within a supply voltage range of 10 to 30 VDC, ensuring compatibility with a broad range of industrial equipment. The sensor features a pulse-modulated green LED light source with a wavelength of 565 nm, which is particularly effective for mark sensing and colour differentiation tasks.
The E3X-A51 offers versatile operation modes, including Light-ON and Dark-ON, which can be easily selected via a switch. Sensitivity adjustments are straightforward, thanks to an 8-turn potentiometer with a clutch and indicator, allowing for fine-tuning to meet the demands of specific applications.
This sensor does not provide mutual interference protection, which means careful consideration should be given to the placement and application environment to prevent cross-talk between sensors. The maximum load capacity is 100 mA at 40 VDC max, with a maximum ON-state voltage drop of 1 VDC at 100 mA, ensuring efficient power usage.
The response time of the E3X-A51 is impressively quick, with a maximum of 200 µs, making it suitable for high-speed detection tasks. Additionally, it features an OFF-delay timing function, adjustable from 0.01 to 0.1 seconds, providing flexibility in timing critical operations.
For circuit protection, the E3X-A51 includes output short-circuit protection and DC power reverse polarity protection, enhancing the durability and longevity of the sensor. The status of the sensor is easily monitored through the light received (red LED) and output stability (green LED) indicators.
The sensor's case is made from heat-resistant ABS, and the cover is constructed from polycarbonate, offering robust protection in challenging industrial environments. It can be mounted on a DIN rail track or directly onto a flat surface through holes in the provided bracket, facilitating easy installation.
The E3X-A51 comes with a prewired 5-conductor cable that is 2 m (6.5 ft) in length, contributing to a straightforward setup process. It has an enclosure rating of IEC IP66, indicating a high level of protection against dust and water, which is essential for maintaining performance in harsh conditions.
With an operating temperature range of -25° to 55°C and a storage temperature range of -40° to 70°C, the E3X-A51 is capable of functioning effectively across a wide range of temperatures, ensuring reliability in diverse working conditions.
Overall, the Omron E3X-A51 fiber-optic photoelectric sensor is a versatile and reliable choice for industrial sensing applications where precision, speed, and adaptability are paramount.
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Frequently Asked Questions
What type of light source does the E3X-A51 use?
The E3X-A51 utilises a pulse-modulated red LED with a wavelength of 660 nm as its light source.
Can the E3X-A51 be used with any fiber optic cable?
The E3X-A51 is designed to be used with all E32-series fiber optic cables.
What are the power requirements for the E3X-A51?
The E3X-A51 requires a supply voltage of 12-24 VDC with a 10% ripple maximum and has a current consumption of 40 mA max.
What are the operating modes available on the E3X-A51?
The E3X-A51 offers Light-ON, Dark-ON, or SET modes, which are switch selectable for versatile operation.
What is the maximum load the E3X-A51's output can handle?
The E3X-A51's output can handle a maximum load of 100 mA with a 40 VDC maximum.
How does the E3X-A51 protect against mutual interference?
The E3X-A51 does not provide mutual interference protection, so care must be taken when installing multiple units in close proximity.
What type of output does the E3X-A51 have?
The E3X-A51 has a PNP open collector output.
What are the environmental operating conditions for the E3X-A51?
The E3X-A51 can operate in ambient temperatures ranging from -25° to 55°C without ice buildup and can be stored in temperatures from -40° to 70°C.
How is the E3X-A51 mounted?
The E3X-A51 can be mounted on a DIN rail track or on a flat surface through holes in the bracket provided with the unit.
What is the enclosure rating of the E3X-A51?
The E3X-A51 has an enclosure rating of IEC IP66 when the cover is on, indicating a high level of protection against dust and water.
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