Pepperl+Fuchs Blog

Finding the Model Number on Your Inductive Sensor

Posted by Eric Miller on Thu, Oct 01, 2015

One of the most important parts of integrating an inductive sensor into an application or ordering replacement parts is being able to identify the part and model number of the sensor. That is why knowing how to find the model number on your inductive sensor is so important. This is actually a fairly simple and straightforward process.

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Topics: Terminology, Inductive Sensors

Is Environmental Heat Getting the Better of Your Optical Sensors?

Posted by Tom Anderson on Thu, Sep 24, 2015

Ed. Note: This guest blog post is by Tom Anderson, General Manager of PSI Technics, LTD. and is cowritten with Ann Zecha of WordSpark, LLC.

Radiant heat from manufacturing processes in high-temperature environments can present a challenge for optical sensors used in automated production facilities. Excessive heat in melting, pouring, or similarly demanding industrial applications that exceeds a sensor’s temperature specifications can degrade the measurement quality, damage sensor diodes, and cause unwanted disruption to production. Usage statistics show that for every 18 °F (10 °C) increase in temperature, the diode lifespan of optical sensors is reduced by up to 50%.

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Topics: Applications, Distance Sensors

5 Accessories That Will Extend the Life of Your Cylindrical Proximity Sensor

Posted by Tarik Matar on Thu, Sep 17, 2015

Proximity sensors are a great choice for applications that sense metal targets at a certain distance. To help improve the lifetime of your proximity sensor, here are some product ideas:

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Topics: Inductive Sensors

Ask an Expert Industrial Sensors-Episode 12

Posted by John Appleson on Thu, Sep 10, 2015

This episode of Ask an Expert for industrial sensors examines and provides answers to interesting sensing questions we've received from customers just like you. We explore and answer these questions:

  1. How to configure the AS-Interface VAS-2A-K12 safety monitor with a SLC ASI master card for a SLC 5/03 CPU (Allen-Bradley)?
  2. Do you have cabling that can connect to an ML7 series photoelectric sensor at a distance?
  3. How to program the UB1000-18GM75-I-V15 ultrasonic sensor?
  4. Can the inductive sensor NCB10-30GM40-N0-5M be used in offshore or marine applications?
  5. Will the NBN40-L2-E2-V1 inductive sensor be 100% reliable in high humidity/ water spray areas?
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Topics: Inductive Sensors, Ultrasonic Sensors, AS-Interface, Photoelectric Sensors, Ask an Expert

Because Sometimes You Need More Than an Intrinsic Safety Barrier

Posted by David Hohenstein on Thu, Sep 03, 2015

There are times when you need only an intrinsic safety barrier or surge protection to get the job done. But what if you need more than just a component, something more customized, something like a complete system solution—including documentation and certification? Sure, you could always build your own and have it certified yourself. But it's time consuming, and the number of approval standards and certification bodies is enormous. You really need to be focusing on keeping your plant running.

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Topics: Approvals/ Certifications, Hazardous Area Enclosures/ Equipment, Intrinsic Safety Barriers

What is POWER24 for AS-Interface?

Posted by Tim Cicerchi on Thu, Aug 27, 2015

Even though POWER24 has been around for years, nobody really talks about it.  It is a rarely used and little-known part of the latest specification that allows AS-Interface to run at 24 VDC.  It has taken a while for the right number of components to be designed to the POWER24 specification for it really to be considered useful for most modern-day material handling and assembly applications.

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Topics: AS-Interface

Retroreflective Mode: When Ultrasonic Sensors Rise to the Highest Challenges

Posted by Patricia Stafford on Fri, Aug 07, 2015

What is the principle behind ultrasonic retroreflective mode sensors?  How do they work?

Retroreflective mode uses the same type of design as diffuse mode sensors, such that a single housing contains both the transducer and the evaluation electronics, allowing one sensor to operate as both an emitter and receiver. Much like diffuse mode sensors, retroreflective sensors emit a three-dimensional sound cone which creates a beam angle that defines the sensing range. However, instead of calculating the distance to a target object, retroreflective sensors are set to a specific constant value based on an  unchanging distance to a reflective surface like a wall, plate, or conveyor belt. This distance between the sensor and the surface serves as a reference. The sensor measures the amount of time between the emission of a sound pulse and its return echo from the reflective surface. If there is a change in the amount of time or if the echo disappears entirely, this indicates that a target object is present.

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Topics: Ultrasonic Sensors

The Differences Between Absolute and Incremental Rotary Encoders

Posted by Patricia Stafford on Thu, Jul 30, 2015

What are the differences between absolute and incremental rotary encoders? Which one do I use when? These questions come up all the time. Our customers want to know.

Rotary encoders in general connect to a shaft and output pulses as the shaft rotates. You can determine the speed of an object based on how many pulses there are per revolution. The number of pulses that make up one full turn of the shaft determines the resolution. Incremental encoders have a resolution of up to 50,000 pulses per revolution (ppr) while absolute encoders have a resolution of up to 16 bits or 65,536 ppr.

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Topics: Rotary Encoders

Ask an Expert Industrial Sensors - Episode 11

Posted by John Appleson on Thu, Jul 23, 2015

This episode of Ask an Expert for industrial sensors examines and provides answers to interesting sensing questions we've received from customers just like you. We explore and answer these questions:

  1. How do I get a narrower sound cone on an F260 series ultrasonic sensor?
  2. Is AS-Interface "data decoupling" the same as "filter integrated"?
  3. Can I use a diffuse mode photoelectric sensor to detect marks on a steel rivet?
  4. What is the output stage used for on an inductive sensor?
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Topics: Inductive Sensors, Ultrasonic Sensors, AS-Interface, Photoelectric Sensors, Ask an Expert

WirelessHART Is Networking Made Smart

Posted by Patricia Stafford on Fri, Jul 17, 2015

What is WirelessHART?

WirelessHART is a wireless communication network designed especially for sensors used in process automation. It connects individual sensors to a distributed control system (DCS) or asset management system.

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Topics: HART

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