tag:blogger.com,1999:blog-35666804680744358202024-03-15T21:09:09.172-04:00Automation and ControlsThe Automation and Controls Blog helps readers learn about sensors and controls used in various industries. Real-world applications are discussed in order to assist readers solve similar applications.Unknownnoreply@blogger.comBlogger20125tag:blogger.com,1999:blog-3566680468074435820.post-36311206527617699032015-02-05T09:47:00.003-05:002015-02-06T09:17:12.411-05:00Air Extraction and Filtration Machines Introduction Video<iframe allowfullscreen="" frameborder="0" height="270" src="https://www.youtube.com/embed/kZe1qm16lJY" width="480"></iframe>
<br />
Fuchs Umwelttechnik's (Fox Environmental Technology) highly efficient
extraction and filtration systems integrate seamlessly into your normal
work flow. Each unit is backed by many years of experience and is the
product of complete expertise.<br />
<br />
Through individual consulting, a comprehensive, mature product portfolio
and Fuchs' 25 years of experience in the development of special systems
guarantee a suitable solution for almost every suction and filter
problem. Use of state-of-the-art <a href="https://en.wikipedia.org/wiki/Computer-aided_design" target="_blank">CAD</a> technology and Fuchs' own prototype
construction ensure that customers receive the solution that matches
the application.
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<a href="https://fuchsfilters.com/" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="http://www.pantron.com/us/images/fuchs-fox.png" /></a></div>
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-90782897735222858582015-02-02T14:49:00.000-05:002015-02-06T09:20:12.420-05:00How to Detect Burn Through in Welding Applications for Quality Control<div class="separator" style="clear: both; text-align: center;">
<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjXenWwA1cBRpIFg9eTJzZamb5CNDGiGbJ7EP181FPubQxJ_StLf8w2a1_ggZh6pCopc5Phk5RYlPPr5S2bfHBIq1JJpm3w7JjL0PY-wNECmpY1IxUplK5Ap3sQS0kidTb_pfvBsiGr3o/s1600/ild1000.jpg" imageanchor="1" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgjXenWwA1cBRpIFg9eTJzZamb5CNDGiGbJ7EP181FPubQxJ_StLf8w2a1_ggZh6pCopc5Phk5RYlPPr5S2bfHBIq1JJpm3w7JjL0PY-wNECmpY1IxUplK5Ap3sQS0kidTb_pfvBsiGr3o/s1600/ild1000.jpg" height="320" width="320" /></a></div>
In <a href="https://en.wikipedia.org/wiki/Welding" target="_blank">gas metal arc welding</a> applications, there is a problem caused when the weld metal penetrates fully through the base metal. This condition is known as "burn through" and it normally occurs on thin materials that are less than a quarter of an inch thick.<br />
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Fortunately, there is a specialty light sensing system available to detect this condition. The <a href="http://www.pantron.com/us/pantron-ild-1000.html" target="_blank">ILD-1000 infrared detection system</a> from the German manufacturer Pantron Instruments, GmbH is designed specifically for the detection of this burn through condition. It detects the presence or absence of intensive, non-uniform light that typically arises from arc welding and laser welding of metallic pieces.<br />
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The ILD system's controller constantly monitors the infrared arc and provides error detection in the case that there is an interruption in that light. The complete system consists of the evaluation device ILD-1000 and the infrared photoelectric sensor model IR-M12VA.<br />
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This system was developed and tested in collaboration with leading global suppliers of robotic systems and welding plants. It is already successfully established by several prominent automotive suppliers, rolling bearing and plant manufacturers Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-20224473385864425702014-08-20T14:02:00.000-04:002015-02-06T09:24:48.514-05:00Inductive Proximity Switches for Sensing Metal Objects in Extemely HOT or COLD Areas<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.pantron.com/us/ege-inductive-proximity-switches.html" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;" target="_blank"><img alt="http://www.pantron.com/us/ege-inductive-proximity-switches.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgXM2zxbsDzUmSna4c8nwaEv-V5e2YyEdjQ5F3THKuXDxvV8i6vnOhFKrRmif_zuPn3yEToBRhFBYAOIRSUkM9bx0Gs7REzrE8pwob2qB4HXYiY6sU7GVf7zbzxQi6kKTEaEJadoiCckkU/s1600/ege-long-term-high-temp-pro.png" height="192" width="320" /></a></div>
The German manufacturer,<a href="http://www.pantron.com/us/ege.html" target="_blank"> EGE Elektronik</a>, offers special <a href="https://en.wikipedia.org/wiki/Inductive_sensor" target="_blank">inductive proximity</a> switches for high temperature applications. Focus is on TROPICAL switches which exceed IP 69K with a
temperature range up to +120 °C and is optimally suited for
corrosive environments.<br />
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Even higher temperature switches up to 160 °C are also
offered.<br />
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EGE's high<b><span style="color: #e06666;"></span></b>est temperature resistant sensors can be used in extremely <b><span style="color: red;">HOT</span></b> environments up to 250
°C. These models are available with armored cables and external amplifiers.<br />
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On the lower end of the temperature scale are the <b><span style="color: #3d85c6;">POLAR</span></b> switches that thrive in -60 °C.<br />
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Large switching distances up to 170 mm and sensors
resistant to rolling oils made from <a href="https://en.wikipedia.org/wiki/Polytetrafluoroethylene" target="_blank">PTFE</a>, PP or <a href="https://en.wikipedia.org/wiki/PEEK" target="_blank">PEEK</a> are also available
for the food industry. Intrinsically safe ex-classified sensors
according to <a href="https://en.wikipedia.org/wiki/ATEX_directive" target="_blank">ATEX</a> and compact dust-EX and gas-EX sensors complete the
product program.<br />
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The "demanding environment" sensors offered by EGE are specially
designed for harsh environments in which sensors are exposed to high
electrical, electromagnetic or mechanical stresses. Stresses are not
always included in customary inspection and test methods in the way that
they develop in different production environments. Therefore, EGE has
developed special test methods that are better suited to the use of
sensors in critical applications. This has resulted in sensor designs
that are suitable for use in almost any environment.Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-79053749489723506712014-08-11T13:49:00.000-04:002015-02-06T09:28:07.107-05:00The Role of Photoelectric Systems in the Car Wash<iframe allowfullscreen="" frameborder="0" height="270" src="https://www.youtube.com/embed/zP7sjeii2u8" width="480"></iframe>
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This video is a recent case study done on-location in <a href="http://Wake Forest, North Carolina" target="_blank">Wake Forest, North Carolina</a> at <a href="http://americanprideus.com/locations_wake_forest_capital.html" target="_blank">American Pride Car Wash</a>. The video stars Anthony Analetto,
President of the Parts Division at <a href="http://www.sonnysdirect.com/" target="_blank">Sonny's Enterprises </a>and Pantron's
own Wayne Finley, Technical Product Manager. Anthony and Wayne discuss
the role of Pantron photoelectric systems in the car wash and introduce
Sonny's customers to the <a href="http://www.pantron.com/us/pantron-m12-4qd.html">IP67-rated quick-disconnect style photo eyes and cables</a>.
Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-29685607510155640332014-01-07T10:38:00.000-05:002015-02-05T10:39:52.280-05:00Extreme Sensors for Harsh Environments<a href="http://www.pantron.com/us/pantron.html" target="_blank"><img alt="Pantron Extreme Sensors" class=" aligncenter" height="640" src="http://www.pantron.com/us/images/pantron-extreme-sensors.png" width="494" /></a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-23630509231378113732009-05-05T09:45:00.013-04:002015-02-06T09:33:24.920-05:00How to Install and Maintain Photoeye Sensors for In-bay Automatic Car Washes<div class="separator" style="clear: both; text-align: center;">
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<a href="http://www.pantron.com/us/applications-carwash.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.pantron.com/us/applications-carwash.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEhFTt7SKMOph0L56Az7bbsIFE2ywS5OJmL-mY7kEzhUVHK3us0saLG68xtgBMOVuOeG3OXmj7MzlYnpu20VCwYkvZbFyMo39u9dAH4M63e-UQ0kddoGdh2upeySr0ecdr6SIiGZXaxmLO0/s320/sensors-inbay-automatic-car-washes-800X800.jpg" height="261" qu="true" width="320" /></a></div>
In-bay automatic <a href="https://en.wikipedia.org/wiki/Car_wash" target="_blank">car washes</a> rely on sensors to control the car wash equipment. Without sensors, the wash computer would assume that every vehicle is the same length, height, and width. Applications for sensors include starting the wash, measuring vehicles, and controlling the opening and closing of doors. Photoelectric <a href="http://www.pantron.com/us/applications-carwash.html" target="_blank">sensors</a> have become a preferred method of detection due to their performance and ease of use. Proper installation and regular maintenance will ensure uninterrupted performance from the photoelectric sensors.<br />
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The first thing to consider when choosing a sensor for an automatic car wash is the type of application that the sensor will be used in. Photoelectric sensor systems typically consist of, at very least, an infrared transmitter, an infrared receiver, and in high-powered systems, an external amplifier. For the simple detection of a vehicle, the photo eyes are positioned on either side of the car wash. The transmitter photo eye emits an <a href="https://en.wikipedia.org/wiki/Infrared" target="_blank">infrared</a> beam of light across the bay that is detected by the receiver photo eye. When the infrared beam is interrupted by a vehicle, a signal is sent to the equipment to perform the desired application. This may be starting the equipment, measuring or profiling the vehicle, or simply opening and closing the doors. Usually, one sensor is mounted high, while the other is mounted low so that the sensors form a diagonal line to the ground. This causes the beam to pass through the area where the largest portion of the vehicle will pass and helps to reduce false signals. Mechanical treadle plates that are used to position the vehicle may be replaced by photoelectric sensing systems.<br />
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<a href="http://www.pantron.com/us/pantron-photoeyes.html" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;" target="_blank"><img alt="http://www.pantron.com/us/pantron-photoeyes.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEg00zF1YWc_RE2KRPunufW0QhWApsh7-KPEzBR9iBd-O0uzGOXq3LKeMEZqFgyyYlS6wSK0SylhNGfUQkJW7qMrr-YhS93drXNeL_uIxUP3BZjB6r1nqsSHcCmbe89M1bzUAteZLqbGhdA/s200/photo+eye+800X800.jpg" gu="true" height="141" width="200" /></a></div>
The body of the sensor should be durable and designed to withstand the harsh conditions of the wash. There are sensor bodies available in plastic, nickel-plated brass, and stainless-steel to meet the requirements of the car wash environment. A simple infrared sensor like the ones used in a residential garage door application are not designed to withstand the conditions in a car wash and should be avoided in this type of application because they lack the proper sealing. For the car wash environment select a sensor with an <a href="https://en.wikipedia.org/wiki/IP_Code" target="_blank">IP67</a> rating. This rating is used to inform the end-user that the sensor is sealed in a way that will not allow the internal circuits to be damaged by water spray or submersion. The range of the sensor is important for two reasons. It is much easier to mount the sensors in a place where they will not be hit if they have a long enough sensing distance. A strong infrared beam will also assist in penetrating the steam, mist, and soap that are present while the wash is running and will provide fewer false signals and the resulting down-time.<br />
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Required maintenance to photoelectric sensors is easy, and requires very little time. Check the alignment of the photo eyes using a length of string or wire long enough to pull in a line between the sensors. This line should be parallel with the sides of both sensors. If you are using a set of photoelectric sensors that uses an external amplifier, periodically check to be sure that the seal on the <a href="http://www.pantron.com/us/pantron-protective-enclosures.html" target="_blank">enclosure box</a> is still intact and that no water has penetrated into the inside of the box.<br />
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If you have problems with the photoelectric controls, determine the nature of the problem. Are they giving an intermittent output that flickers? Do the sensors report an output all the time? Is it impossible to break the beam between the photo eyes? Once you determine the nature of the problem, it is then easier to isolate the cause. If there is a flickering output, check the alignment of the photo eyes. Next check to be sure the photoelectric system is turned high enough. (On amplified systems, this setting is located on the amplifier, inside the water-tight enclosure.) If both of these things appear normal, check for corrosion at any points where the cable has been cut and spliced. If you find corrosion, be sure to cut and reconnect the wires using a <a href="https://en.wikipedia.org/wiki/Solder" target="_blank">soldered</a> connection and heat-shrink tubing. This will help seal out moisture from the connection. If you still see flickering from the output of the photo eyes, check to be sure all wires that should be grounded are connected to ground. The wires from the photoelectric controls should not share the same <a href="https://en.wikipedia.org/wiki/Electrical_conduit" target="_blank">conduit</a> as the wires from any motor controls.<br />
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<a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfrjaPFcx8qegm02K9BUhxQPu7MoCL7q2yaUnfYKOMtzlfb05kNvV8J4QaeZXKyQk_ypi2csQzTup3V7j8leatYdyiRNfhdh_H1r5T5xgdpD6eu7b_moHWfR1KiWVQgyXNKlOeUg5VrwI/s1600/sensors-inbay-automatic-car-washes-1_2-800X800.jpg" imageanchor="1" style="clear: left; cssfloat: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEgfrjaPFcx8qegm02K9BUhxQPu7MoCL7q2yaUnfYKOMtzlfb05kNvV8J4QaeZXKyQk_ypi2csQzTup3V7j8leatYdyiRNfhdh_H1r5T5xgdpD6eu7b_moHWfR1KiWVQgyXNKlOeUg5VrwI/s200/sensors-inbay-automatic-car-washes-1_2-800X800.jpg" height="157" qu="true" width="200" /></a></div>
If a constant output is the problem, check both photo eyes for obstructions. Be sure trash hasn't blown in front of the eyes and found a permanent home in the path of the beam. Alignment may also be an issue, but if they are out of alignment far enough to give a solid output signal, then this should be fairly obvious to the naked eye. Next, look closely at the face of the photo eyes. Check for visible cracks or bad abrasions. Even an IP67 sealed photo eye can be rendered useless if a large enough crack forms in the face of the sensor, thereby allowing moisture to breach the internal circuits of the photo eyes.<br />
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If it appears that the infrared beam between the eyes is impossible to break, the cause is one of several things. The first is simply that the intensity of the infrared beam is too strong and that it is literally not being blocked as the vehicle passes. Reflections on the wet walls contribute to this problem also. Try turning the strength of the system down a little. If this doesn't work, check the alignment of the photo eyes. Maybe the photo eyes see each other at an angle and when the vehicle passes through, the beam is not being broken at that angle.<br />
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<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron.html" target="_blank">Infrared photoelectric sensors for car washes</a> <br />
<a href="http://www.pantron.com/us/pantron.html" target="_blank">Infrared photoelectric amplifier for use with photoelectric sensors</a>Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-3566680468074435820.post-88762534397331406452009-04-05T09:57:00.009-04:002015-02-06T09:36:03.615-05:00How to Automate a Haunted House Using Sensors<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.pantron.com/us/applications-haunted-house.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.pantron.com/us/applications-haunted-house.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjXwGMqNQp4IfMTLWPxGAQnG0jIKQPiTQZoyU3LbITCVk8XUKY2LJT9j1mqBEZ0OHREhTXNpQT4W67nShuIsPv8GlqYIQOdHXGJ9NNjNB27XoljdGuJbu1s-42pRQ-MeepHfVJdfs0Cd1M/s320/automate-haunted-house-using-sensors-800X800.jpg" gu="true" height="252" width="320" /></a></div>
You've built a creepy haunted house and it's the scariest one around. How do you take it to the next level? Automate it using non-contact infrared photoelectric sensors to control electronic scare devices.<br />
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Haunted houses are designed to be very creepy and with enough volunteers, they may be loaded with frights around every corner. What if there are not enough volunteers available to haunt the house? <a href="http://www.pantron.com/us/applications-haunted-house.html" target="_blank">Infrared photoelectric sensors</a> are the perfect device to detect guests and to trigger electronic gadgets, such as noise makers or motorized animatronic characters, giving visitors a scare they won't soon forget.<br />
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Sensors are used every day in various industries ranging from <a href="http://www.pantron.com/us/applications-food-processing.html" target="_blank">food processing</a> to automotive assembly lines. Some of the top commercial haunted houses in the country are now using the very same sensors to automate their haunted attractions, providing a far creepier presentation. Industrial sensors are available to the general public for less money than you might expect, giving the average Joe an opportunity to built a haunted house that rivals even the ones presented by major theme parks.<br />
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The easiest type of photoelectric sensor to use in a haunted house attraction is one that uses a <a href="https://en.wikipedia.org/wiki/Relay" target="_blank">mechanical relay switch</a>. This type of sensor is as easy to wire and operate as a light switch. Also be sure that the photoelectric sensors use infrared light and do not display a visible light which would draw attention to them. Arrange the photoelectric sensors across from each other in a hallway or door jamb, or anywhere that a guest will pass between them. The guest will break the infrared beam of light, causing the mechanical relay switch in the photoelectric controller to close, which will provide power to a noise maker or <a href="https://en.wikipedia.org/wiki/Animatronics" target="_blank">animatronic</a> device. Each time a guest passes the sensors, the same action will occur repeatedly without operator intervention. This allows volunteers in the haunted house to spend time mingling with the guests and not hiding behind walls, just making noise.<br />
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<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/applications-haunted-house.html" target="_blank">Infrared photoelectric sensors and timed amplifiers for haunted houses</a><br />
<a href="http://www.pantron.com/us/pantron-photoeyes.html" target="_blank">Amusement park applications</a>Unknownnoreply@blogger.com1tag:blogger.com,1999:blog-3566680468074435820.post-84468529143828205212009-03-05T10:03:00.002-05:002015-02-05T15:15:39.143-05:00How to Keep Trucks from Hitting or Becoming Stuck Under Overpasses<div class="separator" style="clear: both; text-align: center;">
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<a href="http://www.pantron.com/us/pantron-complete-set.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.pantron.com/us/pantron-complete-set.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjnM3uUZzavNvHSiB3f58-fkTlTRjY3Q_Xl6gI5uc5Dj1NxfUt0lj7yrXEF49MFSP6um_9XHj92iPQlu62DdDYTHuhE01RKIYeYyE2cntC-EveXR0n3rUiu0XjsYQ-AKBk42gxp1ODx1Bw/s1600/VehicleToo-Tall.png" height="187" width="320" /></a>Operators of large trucks sometimes do not accurately measure the height of the vehicle or the extra height of the load that they are carrying. When they drive these trucks under a bridge or overpass that has a lower maximum height requirement, these trucks either strike the overpass or, in some cases, the vehicle becomes lodged beneath the overpass.<br />
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Excessive traffic congestion and the financial burden of removing lodged trucks and repairing overpasses is a good incentive to apply a relatively simple and inexpensive means of warning drivers if the load that they carry exceeds the maximum height for a bridge or overpass.<br />
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Purchase a set of industrial photoelectric sensors that use an amplifier with an internal manual relay. These photoelectric sensors should be positioned in an opposed-mode configuration (or through-beam) so that the transmitting eye is located on one side of the lane and the receiver is on the opposing side. The photo eyes should face one another so that the infrared beam projects across the roadway. The infrared beam should be positioned so that it is horizontal to the road surface and at a height that is just below the maximum allowable vehicle height of the overpass. When the beam is broken by a vehicle or by cargo, it will trigger a signal from the photoelectric amplifier. These photoelectric sensors should be located far enough from the overpass, that they will detect the over-sized vehicle in time to warn the driver to exit the roadway.<br />
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Connect the relay from the photoelectric amplifier to a set of flashing lights and use the proper signage to alert the driver and provide them with simple instructions, for example, "WARNING MAXIMUM HEIGHT EXCEEDED - TAKE EXIT WHEN LIGHTS ARE FLASHING!" Though, this solution is a simple one and very inexpensive, the benefits will be quickly realized.<br />
<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron.html" target="_blank">Infrared photoelectric sensors for outdoor applcations in bright sunlight</a><br />
<a href="http://www.pantron.com/us/pantron-isg-n24.html" target="_blank">Infrared amplifer with manual gain for use with photoelectric sensors</a><br />
<a href="http://www.pantron.com/us/pantron-light-shields.html" target="_blank">Polarized filter attachment for infrared photoelectric sensors</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-30114436342722585012009-02-04T10:19:00.006-05:002010-08-26T15:27:37.946-04:00How to Test Whether a Sensor has a PNP or NPN Type Output Using a Multi meter<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKq_ynXSXZNqLhyphenhyphengMLSX4ZCtX3lFBtWfhOEc0Xr3apgbnRcH_oN_e1ixlcyXzTm3IX8NJJB5QCFPmnE-wIOSkChP7cE6RLDfEAUwvdB_N_K0pdOhYjtowsbeiCzaIPH0VrTIezuOihNuQ/s1600/type-output-using-multi-meter-800X800.jpg" imageanchor="1" style="margin-left: 1em; margin-right: 1em;"><img border="0" gu="true" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEiKq_ynXSXZNqLhyphenhyphengMLSX4ZCtX3lFBtWfhOEc0Xr3apgbnRcH_oN_e1ixlcyXzTm3IX8NJJB5QCFPmnE-wIOSkChP7cE6RLDfEAUwvdB_N_K0pdOhYjtowsbeiCzaIPH0VrTIezuOihNuQ/s320/type-output-using-multi-meter-800X800.jpg" /></a></div>If you are replacing a 3 wire sensor which operates on DC voltage, it is important to know whether the sensor's output is a PNP or NPN type. Often this information is printed on the sensor itself, but it is not uncommon for it to be scratched off over a long period of time.<br />
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Set the multi meter to DC voltage. This is indicated by either the letters "VDC" or "DCV" or by a symbol which looks like 3 dashed lines over a solid line. There are usually several levels within the DC voltage setting. Choose the "600" level.<br />
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The power will need to be ON to perform this test, so use caution when attempting the following. Connect two of the sensor wires to the power supply. If the color combination of the wires is blue, black, and brown, then normally, the blue wire connects to 0v and the brown wire connects to positive volts. Touch the black meter probe to the 0V wire of the sensor. Connect the red meter probe to the signal output wire of the sensor. This wire is normally black. The meter should read "0."<br />
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Force the sensor to output. If it is a photoelectric sensor, block the photoelectric beam. If it is an inductive proximity switch, introduce a small piece of metal in front of the sensor. For an ultrasonic sensor or a capacitive sensor, you can just use your hand to make the sensor output. Be sure that the sensor is detecting the object. Many sensors have a small LED that illuminates when the sensor detects it's target.<br />
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Watch the meter display as you force the sensor to output. If the readout changes to a number between 10 and 30, then the sensor output is a PNP type, also known as "sourcing." If the meter display remains at "0", then the sensor output is an NPN type, also known as "sinking."<br />
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If you believe that the sensor is NPN, there is an additional test that may be done to confirm. Remove the meter probes from the wires. Now place the red meter probe on the positive voltage sensor wire, normally a brown wire. Touch the black meter probe to the signal output wire of the sensor, normally black. When the sensor does not detect it's target, the meter display should read between 10 and 30. When the sensor senses an object, the display should drop to "0." This will confirm that the sensor has an NPN type output.Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-7786184560730466182009-01-05T10:21:00.005-05:002015-02-05T14:11:55.651-05:00How to Measure the Level of Material in a Large Bin or Hopper<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.pantron.com/us/di-soric-ultrasonic-sensors.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.pantron.com/us/pantron-complete-set.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEihTjcVYugli6gQcJjH0bfWH-kzikFVQUpHeOGctpBVKA9FBkhnvwxE8LIF_omqA-I7Hy1cbQb2JUP30ShLB5iwdKSk9s81nT0qTwk_lY-8LqicuTEUONd8W2Xg78AV82JxFH1NQ7CzwmE/s320/bin.jpg" height="211" qu="true" width="320" /></a></div>
Let's say you have a large bin or hopper and you regularly fill it with wood chips or powder or even liquid. How can you accurately measure the level in the bin? In applications where it is necessary to measure the level of material in a large collection bin, there is not always an obvious way. This article will describe one method, using an ultrasonic sensor.<br />
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Purchase an industrial ultrasonic sensor (uses sound waves) with a range long enough to bounce from the top of the bin down to the lowest possible level of the material, or at least the lowest level that you care to measure. Be sure to select an ultrasonic sensor with an analog output. Be aware that all ultrasonic sensors have a "blind zone" beginning at the face of the sensor and extending to various distances away. For this reason, the material to be measured should never be allowed to enter this "blind zone" because accurate measurement cannot take place in this range. Also note that ultrasonic sensors are affected by drastic changes in temperature and may need to be re-calibrated occasionally.<br />
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Install the ultrasonic sensor in the top of the bin pointing downward so that it faces the material in the bin. The analog output from the sensor will need to interface with the PLC or computer so that the reading may be interpreted and any necessary functions may take place when the level reaches certain points.<br />
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Empty the bin and take note of the output from the sensor. Then, fill the bin to the maximum desired level and take another reading from the sensor. Now you have your high and low margins. You can program certain things to happen when the material hits a certain level, for instance, when the level of water in a bin reaches the top, the pump that supplies the water shuts off until the water is lowered again to another predetermined level.<br />
<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/contrinex-ultrasonic-sensors.html" target="_blank">Ultrasonic sensors for level control</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-460704860026795212008-12-05T10:27:00.006-05:002015-02-05T14:12:38.225-05:00How to Use Sensors to Detect that Contents are Missing from Foil Wrappers<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.pantron.com/us/pantron-complete-set.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.pantron.com/us/pantron-complete-set.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjhpMQDUvuxDYvU_DlLtA3gfnZ8tAjReVjGN_br2ecjXRCM9Y-ZCxxFv1vZn_B-sEj1pQq7INra_ZrBHQWHoxW4bV_3p2FUdGmlk5iI3JxfwcT93HxgopeOuhOHarOEhjvnUXtGyt6jkvs/s320/foil.jpg" height="227" qu="true" width="320" /></a></div>
An application to detect if the contents of a foil wrapper are missing is fairly easy to solve using two sets of industrial grade high-powered infrared photoelectric sensors.<br />
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Many industries use foil wrappers to package products. For quality control, it is a good idea to have a system capable of automatically detecting when the contents of those wrappers are missing. Some companies use human beings to manually pick and choose wrappers, which is tedious, and not very efficient. There is a solution that really works; infrared photoelectric sensors.<br />
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Position one set of infrared photoelectric sensors in a through-beam configuration, so that the foil wrapper will move between the sensors at a given point. Adjust the sensitivity of the infrared photoelectric sensors so that they will detect the foil wrapper whether it is full or empty. The sensors should be at their most sensitive setting for this. The output from this set of sensors will report to the PLC to let it know when a foil wrapper is present.<br />
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Position the second set of infrared photoelectric sensors beside the first set, also in a through-beam configuration and facing the same direction. Be sure that the sensors are set to different frequencies to avoid cross-talk between the two sets. This set of sensors should be adjusted to its least sensitive setting. In other words, crank the gain setting to the max. Assuming that the photoelectric sensors being used are industrial grade, they should be able to see through an empty wrapper easily, but not one containing product. This set should also report to the PLC.<br />
<br />
Now, you have two infrared beams of light striking the foil wrapper as it passed. One is used as a reference to let the PLC know when a foil wrapper is present. The second set of sensors lets the PLC know when a foil wrapper is missing its expected contents. This system is very reliable and is in use at a number of companies worldwide.<br />
<br />
<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron-m12.html" target="_blank">Stainless-steel infrared photoelectric sensors for packaging applications</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-13303686429059645552008-11-05T10:31:00.002-05:002015-01-10T02:20:07.333-05:00How to Replace an Air Pressure Hose Switch with Non-contact Photoelectric SensorsBusinesses which use hoses attached to pressure sensors to detect vehicles would benefit from upgrading this system to an infrared photoelectric sensor system.<br />
<br />
If you are old enough to remember full-service gas stations, you probably remember that when a car or truck drove up, the tires would run over a long hose and a bell would sound alerting the attendant that a customer had arrived. The same principle of using a hose and air pressure to activate a switch is still used by many companies in a number of ways.<br />
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Air hoses may be used to conduct a traffic count for demographic studies by stretching the hose across a lane of traffic. They are also used to open automatic doors and gates. The basic idea behind the operation of these devices is simple. When an object applies pressure to the hose, the air is forced to one end. The pressure of the moving air moves a switch. This switch may be used to control almost any electronic device.<br />
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The problem with the air hose is that over time, the hose and the mechanical switch wear out. Also, it is very easy for the hose to be moved out-of-place. An alternative to this system is to use an industrial grade infrared photoelectric sensor system. Using non-contact photoelectric sensors provides an installation that is both tidy and easy to maintain. Because there is no physical contact with the detected object, there are no moving parts to wear out.<br />
<br />
Replacing an air hose system with an industrial grade infrared photoelectric sensor system is easy. The photoelectric controller (also referred to as an amplifier) replaces the air hose controller. Many photoelectric controllers have built-in relay switches, making the transition simple. The infrared photoelectric sensors may be placed in a through beam configuration or diffuse proximity (both sensors on the same side) configuration depending on space and wiring requirements. The transition from the old style air hoses to the new photoelectric sensors is easy, quick, and a wise investment.<br />
<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron-photoeyes.html" target="_blank">Infrared photoelectric sensors for driveway applications</a><br />
<a href="http://www.pantron.com/us/pantron-isg-a102.html" target="_blank">Infrared photoelectric amplifier for use with photoelectric sensors</a><br />
<a href="http://www.pantron.com/us/bircher-reglomat-loop-detectors.html" target="_blank">Loop detector and in-ground inductive loop for sensing vehicles</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-1079862595334191012008-10-05T10:33:00.003-04:002015-01-10T02:21:19.278-05:00How to Measure Length and Diameter of an Object Travelling on a ConveyorAn application which requires an object to be measured for length and diameter as it travels along a conveyor belt may be solved using two types of sensors and a PLC.<br />
<br />
Position a set of photoelectric sensors in a through-beam configuration so that the infrared beam crosses the conveyor. The object to be detected should break the beam as it travels. The photoelectric sensors will be used to measure the length of the object and also to trigger the measurement of the diameter by the ultrasonic sensor.<br />
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The ultrasonic sensor should be positioned above the conveyor facing downward and it should be well out of striking distance. The analog output from the ultrasonic sensor will be sent to the PLC, which should be programmed to calculate the diameter of the post based upon the sensor’s output.<br />
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The output from the photoelectric sensor actually serves two purposes. First, it will send a signal to the PLC indicating that the object is present. The PLC will then acknowledge the output from the ultrasonic sensor and begin its calculation. At the same time, the photoelectric sensors will help the PLC determine the length of the object using a calculation based upon the speed of the conveyor and the amount of time that the photoelectric sensors are blocked.<br />
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Though it sounds complicated, the hardest part of the application is the programming of the PLC, which should only be done by a trained professional. The benefits of using this equipment to solve the application are that the sensors are easy to install and they perform efficiently and reliably. Both measurements are done without physically contacting the object, so there are no moving parts to wear down.<br />
<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron-photoeyes.html" target="_blank">Infrared photoelectric sensors for conveyor applications</a><br />
<a href="http://www.pantron.com/us/pantron-infrared-multiplexers.html" target="_blank">Infrared photoelectric multiplexer for mutiple sets of photoelectric sensors</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-13197813647804934092008-09-05T10:36:00.005-04:002015-02-05T14:14:28.380-05:00How to Troubleshoot Photoelectric Sensors<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.pantron.com/us/product-troubleshooting.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.pantron.com/us/product-troubleshooting.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjMguS7-aD0niQi9CBk_kmrfI2iTo1kAwIoz1DfJ41xdQOUMDz8BOdpJFHZ-FkWdBPI9SVX_1JPBrPGWxMBtu69cO93BTlt53ub9S7cOhhSsHUoVxAjPutElB_Wr409dJ-j7GVTnNRQIHw/s200/photo+eye+800X800.jpg" gu="true" height="140" width="200" /></a></div>
Applications for photoelectric sensors vary as do the design and function of the photoelectric sensors themselves, but there are certain things to look for if your set of photoelectric sensors has ceased to function.<br />
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Determine what types of photoelectric sensors are being used in the application. Is there a separate sender (transmitter) and receiver arranged in a through-beam configuration so that they are looking at one another? Is it a single photoelectric device using a reflector or bouncing a beam off the objects to be detected? Look for a part number and manufacturer name on the device. Try to find data sheets for the device on the company's website. Having the data sheets will reduce much of the guesswork involved in troubleshooting.<br />
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Determine the problem. Are the photo eyes registering an output with no object present? Are they ignoring objects that they should be detecting? Does the problem happen at a certain time of day? Are there environmental influences acting upon the photo eyes? If the photo eyes register an output when no object is present, first check the face of the eyes to be sure they are clean. If they are dirty, use a soft cloth and a non-abrasive, non-corrosive cleaner to wipe them clean. If the photoelectric system incorporates a reflector, be sure to clean it thoroughly too. Test the photo eyes now to see if they work.<br />
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If problems persist, try aligning the photo eyes. Using a length of string or wire have one person hold the line beside one photo eye and take your end across to the other. Pull the line tight so that it passes in parallel beside each eye, forming a straight line. It should be obvious that the photo eyes are out-of-alignment if one eye is parallel to the string and the other is not. Adjust both photo eyes as close as you can. Once they are pretty straight, make fine tuning adjustments to the sender eye only. If the sender photo eye is projecting a beam off to the side, then adjusting the receiver photo eye is worthless. This "string method" can also be used with an eye / reflector combo.<br />
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If the photoelectric system still is not functioning, check the data sheets for the sensors to determine what supply voltage is necessary to operate the eyes. Set your multi meter to the correct setting AC or DC and verify that enough power is present to operate the photo eyes. If the photo eyes use a visible beam, verify that you can see the beam coming from the sender. If the photo eyes use infrared light, it is possible to use a video camera equipped with the nighttime filming option (often referred to as "Night Shot") to see the beam projected from the infrared sender. Is the receiver photo eye positioned in direct sunlight? The light from the sun can have adverse affects o photoelectric systems. It is OK to mount the sender (transmitter) in direct sunlight as long as the receiver is shielded from it. Is the photoelectric system properly grounded? Be sure to use earth ground or at least a machine ground. Don't ground your photo eyes to a small screw or tiny DIN rail and think that will suffice.<br />
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If the photo eyes do not generate random signals, but instead ignore the objects that they are supposed to detect, then the problem is, more than likely, that the beam of light is not actually being broken. If there is a gain adjustment available on the photo eyes, adjust it to a lower setting. If this doesn't work, try positioning the photo eyes so that the object-to-be-detected passes closer to the receiver eye. If this is not possible, try narrowing the beam of light projected from the sender (transmitter) and/or narrow the field of view of the receiver. Both may be accomplished using a short, narrow piece of PVC pipe.<br />
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Check your splices. If the wires of the photo eyes have ever been spliced, check the splices and verify that they are clean. Don't just wrap them together and wind electric tape around the splice. Solder the connection and use a heat shrink tube to seal the connection. If all else fails, try calling the manufacturer of the photoelectric sensors or a distributor of the products and ask for troubleshooting assistance.<br />
<br />
<b>Related articles</b><br />
<a href="http://www.pantron.com/us/pantron-extreme-sensors.html" target="_blank">Infrared photoelectric sensors for harsh environment applications</a><br />
<a href="http://www.pantron.com/us/pantron-isg-a102.html" target="_blank">Test amplifier with automatic diagnostic tool for testing photoeyes</a><br />
<a href="http://www.pantron.com/us/product-troubleshooting.html" target="_blank">Technical support webpage for Pantron infrared photoelectric sensors</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-79990541219961011592008-08-05T10:38:00.004-04:002015-02-05T14:15:49.368-05:00How to Extract Harmful Fumes from Industrial Applications and Produce Clean Air<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.fuchsfilters.com/" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.fuchsfilters.com" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjDucRb_xlNaAnPyZy90t3h4t0P-L1yjoiHeJHQw8IV8zPK62gwPWUGdcfbfsWtRawnAaAArDgaa_TnrlYAmPZnrvEQSakLW95XiQbh4LQBeG2fHJNpPo6GlHp5wwCGnBr6MnxxB2CNIz8/s320/extract-applications-produce-clean-air-800X800.jpg" gu="true" height="213" width="320" /></a></div>
Many industrial machines, (ex. laser welding machines) produce dangerous fumes which, if not properly filtered, could cause serious health risks or even death for the employees who operate them. These machines and also smaller applications, like soldering stations should be interfaced with air extraction and filtration machines.<br />
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Contact a manufacturer of air extraction and filtration machines. Many air filtration company web sites offer tools to help you choose the correct machine and filter combination needed to filter the type of fumes or vapors present in your application. There are a number of harmful pollutants that may be filtered using the correct machine and filter combination including dust, gases, laser emissions, vapors, odors, etc. Invest enough time to make the correct decision as to which machine and filters will best work in your application.<br />
<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.fuchsfilters.com/" style="clear: right; float: right; margin-bottom: 1em; margin-left: 1em;" target="_blank"><img alt="http://www.fuchsfilters.com" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjh923s7bgDocbK5uQwDre4JmNlIBGGe4b4W7-XI9qsHOSWN1bHzfQeYgWG3MFBUfDUD-hIMBQW_vWOLC7d01ChkV8jTtdJI1tp5medrl_RIAuDF2x1lzrxlZhZptu7quaSZBxbOyG3gnA/s200/extract-applications-produce-clean-air-1_3-800X800.jpg" gu="true" height="133" width="200" /></a></div>
<br />
Install the recommended machine, strictly adhering to the manufacturer's specifications, and be sure to use the correct filters. Keep several copies of the installation and maintenance instructions that were provided with the machine. If you have questions, do not hesitate to call the manufacturer. Improper installation could result in serious injury or death. Keep a supply of replacement filters in stock in order to avoid unnecessary down time or the temptation to operate without filtering the air.<br />
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Clean the air filtration machine regularly and replace the filters on schedule so that it continues to operate efficiently. Some air filtration machines include a warning system to alert the user when a filter is too saturated and needs replacement.<br />
<br />
<br />
<span style="color: black;"><b>Related products and information</b></span><br />
<a href="http://fuchsfilters.com/">Air extraction and filtration machines, replacement filters, and parts in the USA</a><br />
<a href="http://www.fuchs-umwelttechnik.com/en/index.html">Manufacturer's website for air extraction and filtration equipment</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-31518654417755027102008-07-05T10:42:00.005-04:002010-08-26T15:58:30.198-04:00How to Connect a Three-wire DC Sensor to a PLC<div class="separator" style="clear: both; text-align: center;"><a href="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD_4lvWdban1fqp81YfsSY8VldcFlguXvFO028kUfxoGf9wpZYqvrh3Ep69fVFMjfafNkgmLoh9BGw7D4qiotz9BdjXoy7vL8DbK5otANXjvr-L3PG-ExDP8lFKKeAcgdY7l-BzMA4_PA/s1600/connect-threewire-dc-sensor-plc-800X800.jpg" imageanchor="1" style="clear: left; cssfloat: left; float: left; margin-bottom: 1em; margin-right: 1em;"><img border="0" gu="true" height="213" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjD_4lvWdban1fqp81YfsSY8VldcFlguXvFO028kUfxoGf9wpZYqvrh3Ep69fVFMjfafNkgmLoh9BGw7D4qiotz9BdjXoy7vL8DbK5otANXjvr-L3PG-ExDP8lFKKeAcgdY7l-BzMA4_PA/s320/connect-threewire-dc-sensor-plc-800X800.jpg" width="320" /></a></div>An application calls for a three-wire DC sensor to report to a PLC. How should they be connected together? Check the input card of the PLC and find the voltage rating. Does it operate on DC voltage? Also determine whether the input needs to be sinking (NPN) or sourcing (PNP.) Look at the sensor and make sure the voltage rating and PNP / NPN type is the same. If there is a mismatch, refer to the manufacturer's instructions for both devices to determine compatibility.<br />
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If the PLC's input card is rated for DC voltage and it is a sinking (NPN) type input and also if the sensor operates on DC voltage in the same range and its output is sinking (NPN), then the two should be compatible. Connect the PLC to the power supply, but do not turn the power supply ON yet. Then connect the sensor's positive source voltage wire, which is normally brown, to the positive terminal of the power supply. Connect the negative or neutral sensor wire, normally blue, to the power supply as well, but on the negative terminal. Then connect the sensor's signal wire, normally black, to the PLC input card at the number address that you will assign as the sensor in the PLC program. When the sensor is activated, it will connect the PLC output to neutral or ground, which the PLC will interpret as a "true" condition and respond as programmed.<br />
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If the PLC's input card is rated for DC voltage and it is a sourcing (PNP) type input and also if the sensor operates on DC voltage in the same range and its output is sourcing (PNP), then the two should be compatible. Connect the PLC to the power supply, but do not turn the power supply ON yet. Then connect the sensor's positive source voltage wire, which is normally brown to the positive terminal of the power supply. Connect the negative or neutral sensor wire, normally blue, to the power supply as well, but on the negative terminal. Then connect the sensor's signal wire, normally black, to the PLC input card at the number address that you will assign as the sensor in the PLC program. When the sensor is activated, it will connect the PLC output to the positive terminal of the power supply, which the PLC will interpret as a "true" condition and respond as programmed.Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-69470389388662082782008-06-05T10:44:00.001-04:002015-01-10T02:24:47.799-05:00How to Detect Visitors in a Driveway Using Infrared Photoelectric SensorsInfrared photoelectric sensors may be used to detect objects in a number of ways. Mounting the sender and the receiver across from each other is known as a through-beam configuration and provides the strongest beam. Retro-reflective mounting places the sender and the receiver on the same side and bounces the infrared beam off an object when it is in close enough proximity. Diffuse proximity mounting uses the same layout as retro reflective, but also uses a reflector on the side opposite the photo eyes. Any of these three configurations may be used to set up a driveway monitoring system depending on what type of structures are adjacent to the driveway.<br />
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Evaluate the best location to mount the sensors. This may be a mailbox, a fence post, a brick building, a bridge, or whatever standing structure happens to be within range of the driveway. If you mount the photoelectric sensors in a through-beam configuration they do not need to be very close to the driveway, whereas the other two options will need to be much closer, depending on the type of photoelectric sensors used, like ten to fifteen feet.<br />
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Trace a route back to your home for burying the sensor wires, but don't put the wires in the ground yet. Instead, extend the wires back to the house above-the-ground and connect the photo eyes to the appropriate power source or to an external amplifier if the photoelectric system includes one. Connect the output of the sensors to a buzzer or bell with a noise that is distinctly different from the sound that your doorbell or telephone makes so that you can easily distinguish them. Many photoelectric amplifiers include a relay output, so connecting them to a buzzer should be as easy as connecting a mechanical switch. See the manufacturer's website for wiring diagrams.<br />
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Test the system using different types of cars and trucks and also people. Adjust the sensitivity of the photoelectric system to the optimum level and mount the photo eyes at the right height from the ground to hit the midsection of most vehicles. When everything is set correctly, bury the conduit containing the wires and do your best to conceal the photo eyes from view. This system will provide a reliable means for detecting guests before they are standing on your doorstep and could also be interfaced with a security camera or lights. The opportunities are unlimited.<br />
<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron-photoeyes.html" target="_blank">Infrared photoelectric sensors for driveway applications</a><br />
<a href="http://www.pantron.com/us/pantron-isg-a102.html" target="_blank">Infrared photoelectric amplifier for use with photoelectric sensors</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-18211632029252022362008-05-05T10:47:00.005-04:002015-02-05T14:16:47.788-05:00How to Operate an Automatic Door Using Infrared Photoelectric Sensors<div class="separator" style="clear: both; text-align: center;">
<a href="http://www.pantron.com/us/applications-doors.html" style="clear: left; float: left; margin-bottom: 1em; margin-right: 1em;" target="_blank"><img alt="http://www.pantron.com/us/applications-doors.html" border="0" src="https://blogger.googleusercontent.com/img/b/R29vZ2xl/AVvXsEjfCbaSJ5eR0t7zoBU7qP6vlgW5g2D_ex9qNl6Yt7a3Xi5oieC4Xa9KJ3svbGMvdJV8HYvjyRzjSWmoaTz8NRfYZd320fxYmyBHfaueLLf7MHxbxFD2PwUFDhI8D3z-EuUfRztJp5Rj4xo/s320/operate-using-infrared-photoelectric-sensors-800X800.jpg" height="203" qu="true" width="320" /></a></div>
An automatic door is not complete without infrared photoelectric sensors to control it. Photo eyes provide a non-contact method to detect people or objects passing through the door and may be used in conjunction with a controller to open the door.<br />
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Choose a quality set of industrial infrared photoelectric sensors. It is imperative that sensors are used on an automatic door, not just to open the door, but to prevent the door from closing with a person or object underneath. Photoelectric sensors are ideal for this application because they do not require the door to make contact with the subject to detect their presence. Ultimately, the manufacturer should provide wiring diagrams and installation instructions to help interface sensors or other input devices with the door controller, but the following instructions should give you a general idea of how they should be used.<br />
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Mount the photoelectric sensors in a through-beam configuration. This will save you a lot of trouble later. Do not try to mount the photo eyes on one side and use a reflector on the other because you will find yourself constantly cleaning the reflector. Infrared photoelectric sensors provide a stronger and much more reliable beam when they are mounted across from each other. If the photoelectric system that you are using includes an external amplifier, compare the voltage ratings for the photoelectric system and the PLC. If they are a match, connect the output from the amplifier to the door's PLC input card.<br />
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Configure the photoelectric system to output all the time, but then take away that output when the photo eyes detect something. This is commonly listed by the manufacturer as a feature known as "Normally Closed", "Light Operate", or "Make Switching." Program the PLC to interpret an output from the photoelectric system as a "false" condition and the absence of that output as a "true" condition. When the PLC reads a "true" condition, it should open the door, and when the condition returns to "false" it should close the door. This does two things, it opens the door when an object is detected and also if the photoelectric system experiences a fault or loss of power.<br />
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<br />
<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/applications-doors.html" target="_blank">Infrared photoelectric sensors for automatic door applications</a><br />
<a href="http://www.pantron.com/us/pantron-imx-n24.html" target="_blank">Infrared photoelectric amplifier for use with photoelectric sensors</a><br />
<a href="http://www.pantron.com/us/applications-doors.html" target="_blank">Automatic door applications webpage</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-51532412050379791682008-04-05T10:49:00.003-04:002015-02-05T14:17:42.528-05:00How to Detect Boats in a Log Flume Ride<div class="separator" style="clear: both; text-align: center;">
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It’s time for yearly maintenance and you need a reliable solution to replace the sensors in your log flume attraction. Try industrial infrared photoelectric sensors to keep your log flume running trouble-free year round.<br />
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Purchase an industrial infrared photoelectric system. Check the ratings on the photo eyes and be sure they have an IP67 rating or better. Also check their range to be sure it is more than adequate to cover the entire distance across the river. If the photo eyes need to operate underwater, choose the most powerful combination of transmitter and receiver available.<br />
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Mount the photo eyes in a through-beam configuration for the best performance. Do not rely on reflectors because they will cause problems as they get dirty. If the photo eyes will spend any length of time underwater, it is a good idea to purchase the hard-wired cable version instead of a quick-disconnect type. If you do use quick-disconnect sensors, be sure to squirt dielectric grease into the connectors before attaching them together. This will help keep the connections dry and the pins free from corrosion.<br />
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Ask the manufacturer or distributor of photoelectric sensors for a demo set to test in your ride application before you buy. Try several sets from different companies side-by-side to determine which ones work the best. Follow a strict maintenance schedule and replace the photo eyes at least once a year. Your visitors will appreciate the extended ride uptime that quality sensors provide.<br />
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<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron-extreme-sensors.html" target="_blank">Super high-powered infrared photoelectric sensors for amusement parks</a><br />
<a href="http://www.pantron.com/us/pantron-ism-1220.html" target="_blank">New infrared photoelectric amplifier for use with photoelectric sensors</a>Unknownnoreply@blogger.com0tag:blogger.com,1999:blog-3566680468074435820.post-53217504416575781502008-03-05T10:52:00.007-05:002015-01-10T02:29:10.354-05:00How to Equip Amusement Rides with the Right Sensors<div class="separator" style="clear: both; text-align: center;">
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The best types of sensors in an amusement park are the ones you don’t think about until maintenance time. Find the most reliable products and they will save you money and headaches all year long.<br />
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Evaluate each amusement ride individually. What type of sensing solution is currently in place? How well does it work? If it is possible to replace contact switches, otherwise known as limit switches, with a non-contact solution, it will greatly improve the uptime for that ride. Contact switches with moving parts wear out quickly, whereas non-contact sensors only need to be replaced in the event that they are destroyed by collision, Mother Nature, or extremely rough handling. Consult with a manufacturer or distributor of industrial sensors and ask them for assistance with your application. Any sensor company who is interested in doing business with you should be able to support the products and answer your questions.<br />
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If a new sensor is what you desire, the next decision is which type of sensing technology to implement. There are many sensors to choose from, but in the amusement industry, the top picks are infrared photoelectric sensors and inductive proximity sensors. A transmitter photo eye projects an infrared beam of light, which is invisible to the naked human eye. A receiver photo eye reports when it sees the beam and when it doesn’t and will pass a signal to the appropriate controller. Rides that require objects to be detected from a distance or in harsh conditions, like log flume rides, river rapids, and dark, smoky theme rides are great places for photoelectric sensors.<br />
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Try an inductive proximity sensor in areas where metal objects must be detected at close range. These sensors will only detect metal and their sensing distance is limited, but they are extremely tough and can take a beating. Rides like roller coasters, where the sensor may be mounted on the track and detect the metal in the train are good applications for inductive proximity sensors. Inductive proximity sensors are excellent replacements for limit switches.<br />
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Develop a routine maintenance schedule and replace all sensors in the amusement park at least once a year. This will ensure proper function and will keep the rides operating at their peak performance. Visitors will appreciate the ride availability and you will notice improved uptime and fewer replacements throughout the year.<br />
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<b>Related products and information</b><br />
<a href="http://www.pantron.com/us/pantron-extreme-sensors.html" target="_blank">Super high-powered infrared photoelectric sensors for amusement parks</a><br />
<a href="http://www.pantron.com/us/pantron-ism-1220.html" target="_blank">New infrared photoelectric amplifier for use with photoelectric sensors</a>Unknownnoreply@blogger.com0