EMX Contrast Sensors: A Guide to Finding the Best Equipment for Your Environment - EMX Industries, Inc.

The ability to rapidly detect contrast on the production line is essential — through this process, you can confirm the presence of date codes or text, detect barcodes, confirm the presence of various surfaces, sort products by color, detect cap inserts, and much more. When these processes are upgraded to automation from manual identification, you can count on even more accurate and high-speed results. Contrast sensors work by emitting light onto a target and detecting when a certain established threshold of contrast has been passed. This allows you to achieve more reliable results and leverage the power of automation to keep productivity high within your industrial space.

At EMX, we’ve manufactured a line of CNTX contrast sensors that offer reliable detection and vary based on their unique features. Read on to learn more about the role our sensors play in a variety of applications and how each model differs so you can find your best fit.

Contrast Sensors are Useful for Many Industries and Applications

Contrast sensors are a highly versatile asset for many industries, from printing, packaging, and converting applications to the automotive sector, lumber mills, pharmaceuticals, and more. Whether you need to detect labels, the presence of wood marks, or whether tape has been applied, the CNTX is the ideal match because of its ability to keep up with your operations and streamline your required detection.

This sensor was designed with a broad-spectrum light source, small spot size, and rapid 25-microsecond response time, allowing you to recognize the contrast differentiation between both neutral and color targets. This allows you to detect the presence of glossy materials like caps, sort by color, recognize important date codes, and more. Here’s how it can help many sectors:

Printing — Detect printed text and differences in surface materials.
Lumber Mills — Detect wood marks to identify which materials must be rejected.
Pharmaceuticals — Detect labels and relevant codes.
Manufacturing Sector — Ideal for any industrial environment, these contrast sensors can detect bar codes, dates, or material differences to help push your production forward.

Want to try it out for your application? Talk to our team today for a free sample test and see how it can work for you.

Explore Our Contrast Sensors: Find the Right Model For Your Needs

CNTX-30-TP

This model has a 3mm spot size and mimics other models with its spectral sensitivity, operating range, and discrete PNP/NPN output. It stands out with its auto-teach model, which allows you to get it up and running even faster and eliminates much of the guesswork involved with getting to know these solutions. There’s a simple two-button teach that allows you to set a differentiation between two conditions with varying contrast, simplifying your setup while still supporting the common applications for this equipment.

CNTX-30-TP-2M

This model comes with the same strong features as the prior solution but differs in that it comes with a 2-meter cable for installation. This is a flying lead cable that installers will use to set up the equipment, as opposed to other models that simply have extra wiring. If you’re considering the alternative CNTX-30-TP model but want one with a cable instead for enhanced customization during the installation, this sensor is an ideal match.

CNTX-35-TP

When evaluating contrast sensors, the spot size is a key consideration because it shapes what your machine will be able to measure. While the above models utilize a 3mm spot size, this model has a spot size of only 1mm. It does still provide streamlined auto-teach functionality, so this is a preferred choice if your environment requires a small spot size but you want the same benefits of auto-teach from our reliable contrast sensors.

CNTX-30-T

The CNTX-30-T also provides user-friendly auto-teach functionality and uses a spot size of 3mm. However, it’s available in a robust metal housing style, as opposed to the plastic materials of the previous models. Though both are durable and designed for longevity in the industrial environment, some customers prefer the heavy-duty metal style, which offers impressive aesthetics by blending seamlessly into manufacturing environments and further protecting your products. If you’re seeking a 3mm auto-teach model that advances past plastic housing to deliver something with even more durability, consider this selection.

CNTX-30-0

If you want equipment that can be highly fine-tuned to your needs and offers a standard spot size of 3mm, this is the ideal match. The above models lack a display range, but the CNTX-30-0 differs because of its manual adjustment capabilities which allow you to tailor the equipment further than the auto-teach method allows. With this enhanced flexibility and precise customization, you can ensure your equipment is the best fit for your unique environment. It also comes with the impressive metal housing.

CNTX-05-0

This model contains the smallest spot size, at only 0.5mm. It also offers the same 0-50 display as the CNTX-30-0, allowing for fine-tuning and tailored threshold adjustments to deliver the precision you demand. With its sturdy metal housing, rapid response, and unique spot size, it’s the ideal choice for applications that require a smaller measuring field and environments that demand enhanced customization compared to the auto-teach selections.

Exploring Our Contrast Sensors? Contact Our Team for a Free Sample Test

At EMX, we’re driven to produce high-quality equipment that can keep up with industrial production and streamline manufacturing processes to deliver the best results. We’ve designed our range of contrast sensors to support the rapid identification of contrasting materials to support industries like the pharmaceutical sector, the paper and packaging industry, and more.
When you’re ready to level up your operations with our equipment, we’re here to help. Contact us to discover your best sensor and request a free sample test.