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Omron E3FA-DP21
  • Omron E3FA-DP21Omron E3FA-DP21

Omron E3FA-DP21

The Omron E3FA-DP21 is a high-performance, high-quality product that utilizes Omron's world-leading optical sensing technology, maintaining stable and accurate detection performance even in harsh industrial environments. Floating Light Automation, as an authorized distributor, ensures rapid delivery to customers worldwide within 2-3 business days.

Floating Light Automation is a professional distributor and supplier of the Omron E3FA-DP21, with a monthly supply capacity exceeding 1,200 units. This sensor is designed for industrial automation applications and is suitable for use in production line counting, positioning, object presence detection, and other automated manufacturing scenarios.


Key Product Specifications

Specification Item

Parameter Details

Sensing Method

Diffuse Reflective

Sensing Distance

300mm

Output Type

PNP 2-output (Light ON / Dark ON selectable)

Power Supply Voltage

12-24V DC

Response Time

≤1ms

Connection Method

Pre-wired (2m cable)

Protection Rating

IP67

Operating Temperature

-25°C to +55°C

Housing Size

M18 cylindrical

Omron E3FA-DP21

Core Product Advantages

· Stable anti-interference performance: Equipped with Omron's proprietary asynchronous detection algorithm, it effectively avoids interference from ambient light, background objects and surface reflections of different materials, ensuring stable detection of black matte objects and transparent objects with high detection accuracy.

· Durable industrial-grade design: IP67 fully enclosed housing resists water, dust and oil splashes, adapts to harsh working environments such as automated production lines, packaging machinery and logistics sorting equipment, with an average service life of more than 50, 000 hours.

· Simple installation and debugging: Built-in visible red light indicator, which can directly align the detection position without extra auxiliary debugging tools, saving on-site installation time. The standard M18 threaded housing is compatible with most mainstream installation brackets on the market.

· High cost performance: On the premise of ensuring performance, compared with similar products of other brands, E3FA-DP21 has a more competitive price and lower late maintenance cost, which is suitable for large-scale deployment in automated production lines.


Comparison With Similar Omron Models

To help customers choose the most suitable sensor for their actual application scenario, we compare the Omron E3FA-DP21 with other common models of the E3FA series as follows:

Model

Sensing Method

Sensing Distance

Output Type

Recommended Scenario

E3FA-DP21

Diffuse Reflective

300mm

PNP

General object detection, medium distance positioning, standard industrial scenarios

E3FA-DN21

Diffuse Reflective

300mm

NPN

Control systems that require NPN output, compatible with older PLC modules

E3FA-TP21

Through-beam

15m

PNP

Long-distance detection scenarios such as large equipment and logistics sorting channels

E3FA-RP21

Retro-reflective

3m

PNP

Detection of transparent objects such as glass and plastic films, long-distance small object detection

E3FA-DP12

Diffuse Reflective

100mm

PNP

Short-distance high-precision positioning, small parts detection on assembly lines

From the comparison, the E3FA-DP21 has the most balanced performance between sensing distance and output compatibility, covering more than 70% of conventional industrial detection requirements, and is the best-selling model in the E3FA series.


Matching Recommendations For Common Application Scenarios

1. Production Line Counting & Conveyor Belt Object Detection

In the conveyor belt counting scenario of packaging, food and beverage and automobile processing industries, it is recommended to match E3FA-DP21 with Omron E2B proximity sensors.

The E3FA-DP21 is responsible for detecting the presence of products on the conveyor belt, and the E2B proximity sensor assists in detecting the position of the conveyor belt chain, forming a dual detection guarantee, which can effectively avoid missed counting and false counting caused by product shape differences.

2. Packaging Machinery Position Detection

For the positioning detection of packaging film and carton in sealing and coding equipment, it is recommended to match E3FA-DP21 with Omron E3Z-LS63 photoelectric sensor.

The E3FA-DP21 detects the arrival of cartons, and the E3Z-LS63 detects the edge of packaging film, which can achieve positioning accuracy within 1mm, meeting the high-precision coding and sealing requirements of automated packaging lines.

3. Automated Warehouse Cargo Position Detection

In the cargo access position detection of three-dimensional automated warehouses, it is recommended to install the E3FA-DP21 on the guide rail of the stacker with a standard M18 installation bracket (model: Omron E39-L100).

The IP67 protection level can adapt to the low temperature and dust environment in the warehouse, and the 300mm sensing distance just covers the common cargo placement gap, ensuring stable detection of cargo storage status.


Supply Capacity & Source Guarantee

Floating Light Automation has established a long-term stable cooperative supply relationship with Omron's official distribution channels.

All Omron products sold by us, including the E3FA-DP21, are original genuine products from Omron's official production lines, and each product comes with an official factory quality certificate and a 12-month after-sales warranty.

We maintain a continuous and stable inventory in our warehouses in California, USA and Rotterdam, Netherlands. At present, the spot inventory of E3FA-DP21 is 362 units, which can be shipped on the same day for orders within 100 units, and the delivery cycle of large orders over 500 units does not exceed 7 working days.

Our monthly stable supply capacity of E3FA series sensors reaches more than 5000 units, which can fully meet the bulk procurement needs of system integrators, equipment manufacturers and engineering contractors.


For customers who need long-term continuous replenishment, we can provide customized stocking services, agree on monthly replenishment quantity in advance, and give certain bulk purchase discounts.

We also provide comprehensive after-sales support, including product technical consultation, on-site debugging guidance and free replacement of defective products within the warranty period, to ensure that customers have no worries after purchase.


Order Information

If you need to purchase Omron E3FA-DP21 photoelectric sensors, or get the latest price and delivery schedule, you can contact our customer service team through the contact information on this website.

We will reply to your inquiry within 1 working day and provide you with a customized solution according to your purchase quantity and application requirements.


FAQ

Q: What is the specific sensing distance of the Omron E3FA-DP21?

A: The sensing distance is 100 mm (when using a 300×300 mm sheet of white paper as the target object).

For diffuse-reflective sensors, the sensing distance varies depending on the target object's color, material, and surface condition; the sensing distance is greatest for white objects and significantly shorter for black objects.

Q: What should I do if the sensor shows no response at all after power-up?

A: Troubleshoot using the following steps:

1. Verify that the supply voltage is 10–30 V DC.

2. Check for reversed power polarity (brown wire to +V, blue wire to 0 V).

3. Check the power cable for breaks or open circuits.

4. Ensure the M12 connector is fully inserted and tightened.

If all the above are correct, there may be an internal sensor fault; replacement is recommended.

Q: Is there a minimum order quantity?

A: There is no minimum order quantity. We support both single-unit retail and bulk purchasing; orders can be placed by individuals, businesses, and engineers alike.

Hot Tags: Omron E3FA-DP21 sensor, E3FA-DP21 photoelectric sensor, Omron photoelectric sensor
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