DEE Electronics » Sensors

How to Select a Temperature Sensor

admin2 — Tue, 17 Jan 2012 00:40:49 +0000

There are many variables to consider when selecting the right temperature sensor for your application, but there is a wide range of availability from which to choose a product too. When you boil (no pun intended) all the variables down, there are basically just 3 overall criteria that need to be considered when selecting a temp sensor: 1. Data Requirements, 2. Economic Considerations, and 3. Application Considerations. But within each of these criteria, there are a number of areas to be aware of.

This is an excellent report which covers the data requirements, economic considerations, and application factors that should be considered when selecting the right Temperature Sensor. DEE offers a Free Whitepaper Report that reviews the critical sub-criteria for each of these 3 key areas, and how to properly select your temperature sensor. Using these three key criteria will dramatically improve your efficiency and effectiveness in selecting the right temperature sensor for your application. If you would like a Free Copy of this Report, just send an email to MyFeedback@dee-inc.com with “Temp Sensor Report” in the subject line, and be sure to include your contact information. DEE offers more White Papers and Technical Reports; available by following this link.

The Key Advantages of Snap Action Switch/Sensors

admin2 — Thu, 08 Dec 2011 22:43:03 +0000

When it comes to performance, snap action switch/sensor technology definitely has been field-proven. Its simple operating premise has survived decades of technological improvements and demanding environments. Why? Because it works. When choosing a switch for an application, snap action should unquestionably be considered. Besides its track record, the technology offers a long mechanical life. Of course, this varies by vendor, but generally snap action switches last longer than expected due to a simple, yet rugged design. The switches can be designed with various materials and casings, which allows for flexibility and customizability as well. Some switches are waterproof or completely sealed within the casing materials chosen. Snap action switches are not sensitive to most temperature fluctuations and electronic interference, and auxiliary power is not needed to run a switch. Depending on the application, it is important to understand the capabilities of snap action. DEE offers a FREE White Paper Report that discusses the basics of operation of snap action switches, the ideal types of measurement for snap action sensors, and the advantages of using snap zction technology in your application. If you would like a Free copy of this report, just send an email to MyFeedback@DEE-inc.com with “Snap Action Switch Report” in the subject line, and provide your contact information.

Continuous Level Transducers for Reliable, Economical Tank Level Monitoring

admin2 — Tue, 15 Nov 2011 20:11:07 +0000

This vertically mounted float transducer series offers a reliable and economical means of tank level monitoring suitable for a wide variety of applications and liquids. Available with either brass or 316 stainless steel mounts and stainless, polypropylene or Buna-N floats, the C3957 features a 5mm resolution, while the C3946 offers a 10mm resolution. Each model has a simple two- or three-wire connection.

These sensors contain a chain of equally spaced magnetic switches and resistors in sensing lengths to 96 inches. When activated by the moving magnetic float, the switch chain creates a variable resistance signal that is then converted to a proportional voltage (1-5VDC) or current output, (4-20 mA) through a 24VDC powered circuit board located within the compact stem. The output can then be routed to a meter, programmable controller or other readout or receiver. The float transducers can also be equipped with separate high and/or low float switches for independent alarm signals.

Unlike many solid state level transmitters, this series is unaffected by conductivity or dielectric properties of the liquid. “If it floats…it works!” The integral circuit board design and robust brass or stainless tube resists shock and vibration, making it ideal for off-road vehicle fuel tanks, generator tanks and more.

The series offers a low-cost, buoyancy-based alternative to other level sensing technologies and compliments an ever-growing selection of dependable OEM-priced products.

For more information on Madison Sensors’ solutions, please send an email to MyFeedback@dee-inc.com. DEE is a Trusted Supplier and Expert in providing Cost Savings, Fast Multiple Solution Options, Supplier Reduction, and Time Savings. We Help Manufacturers Find Solutions and Exceed Their Goals.™

Improve Your Liquid Level Sensing and Detection Applications

admin2 — Fri, 16 Sep 2011 20:29:52 +0000

Dee offers a free white paper report that identifies key issues experienced by manufacturers of equipment regarding handling and detection of liquids, with capacitive proximity sensors in particular. It examines concrete sensing/monitoring methods that will improve processes while guaranteeing reliable and dependable noninvasive liquid level detection. The trend towards more sophisticated equipment, which are expected to handle increasingly complex tasks, requires the most proven, repeatable and reliable sensing technologies available. Many factors make it especially difficult for machine/instrument builders to acquire essential real-time information about the machine or instrument’s state in a non-invasive manner. In most applications, it’s virtually impossible to place sensing devices directly in the fluid pathway. This report provides a review of dealing with challenging areas of liquid level detection and how capacitive sensing technology can solve those challenges. If you would like a copy of this free report, just send an e-mail to MyFeedback@DEE-inc.com with “Liquid Sensing Report” in the subject line, and provide your contact information.

The Key to Choosing and Using a Proximity Sensor for Your Application

admin2 — Fri, 15 Jul 2011 13:06:26 +0000

Proximity sensors, which are designed to detect the presence of nearby objects without any physical contact, have evolved from narrow application in industrial automation systems into broad use. They can now be found in consumer and commercial equipment and products ranging from ATM and vending machines, to security systems, to all types of communication equipment – and new applications are emerging weekly. But applying proximity sensors in these new applications is no longer simply an electrical challenge. Using them requires mechanical expertise as well as experience in optical system design, in which engineers must combine light sources with sensors that effectively detect the light. This short white paper report will briefly review some applications for proximity sensors, describe some of the important criteria for selecting the best sensor, and explain how designers must combine electrical, mechanical, and optical skills to complete a successful design. If you would like a copy of this Free White Paper Report, just send an email to MyFeedback@Dee-inc.com with “Proximity Sensor Report” in the subject line, and provide your contact information.

“The 7 Key Questions That Need to Be Answered to Select the Right Sensor”

admin2 — Tue, 26 Apr 2011 14:49:51 +0000

Selecting an industrial Sensor can be a daunting task. With so many sensing technologies and an endless variety of products in the market, how is it possible to quickly find that one ideal sensor for any given application? Turns out, it’s not really so much a process of selecting the right sensor…it’s really about eliminating all the wrong choices. Selecting a sensor is a process of asking a series of questions to eliminate any technology or product that doesn’t fit the application requirements. We have put together a very short, Free Quick Reference Guide on the 7 Key Questions that need to be answered to point you to the right sensor for your application. This is not a lengthy White Paper, but rather a short reference guide to quickly and efficiently get you in a position where you are narrowing your choices. If you would like a FREE copy of this Sensor Quick Reference Guide, please send an email to MyFeedback@Dee-inc.com with “Sensor Selection Criteria Guide” in the subject line, and be sure to include your contact information.

New Full Metal Reed Senor Pair for Extreme Environmental Conditions

admin2 — Thu, 03 Feb 2011 07:52:23 +0000

Environmentally Sound and Rugged Design

This is a magnetically activated Reed Sensor. The sensor is supplied as a set, with the mating actuator magnet. The sensor and the magnet are supplied in a robust aluminum housing, which is designed for screw fastening. The sensor is typically mounted to the fixed surface, while the actuating magnet is mounted on the moving surface. Introduction or removal of the magnetic field determines the closing and opening of the Reed Switch.

The robust aluminum housing protects the magnet and sensor from extreme environmental conditions, as well as against vandalism or sabotage. Additionally, the cable, unlike other standard sensors, is insulated with a metal jacket, providing an additional security feature. The Reed Sensor & Actuator Magnet are particularly suitable for use in alarm systems, position and end position sensing, door and window control, commercial vehicles, engineering, mining, forestry, construction and agricultural machinery.

Features

Screw fastening
Actuator magnet included
Cable in metal protective hose
AT ranges: A, B, C, D, & E
Contact form A, B, and C
High power switch option
High voltage option
Robust aluminum housing
IP65 rated
Wide range of connectors
Large sensing distance up to 40mm
RoHS compliant

Technical Specifications

Switching power: 10-100W
Contact form: 1 Form A (Normally Open), 1 Form B (Normally Closed), & 1 Form C (Changeover)
Switching voltage: 200-1000 VDC
Switching current: 0.5 – 1.0 A
Carry current: 1.25 – 2.5 A
Breakdown voltage (across the switch): 225-4000 VDC minimum (AT dependant)
Operating temperature: -30°C – +80°C
Operating range available: 10-30 AT

For more information on MEDER solutions, please send an email to MyFeedback@dee-inc.com. DEE is a Trusted Supplier and Expert in providing Cost Savings, Fast Multiple Solution Options, Supplier Reduction, and Time Savings. We Help Manufacturers Find Solutions and Exceed Their Goals.™

How to Choose Between a Potentiometer and a Position Sensor – Free Report

admin2 — Mon, 03 Jan 2011 15:40:23 +0000

The difference between a potentiometer and a position sensor has narrowed over the years, and as a result caused some confusion, especially when trying to determine and select the most suitable component for a given application. This report will help distinguish the key differences between the two, and help you determine what you should choose from the many different options in the area of “position sensing”. If you would like a copy of this Free Report, please send an email to MyFeedback@Dee-inc.com with “Potentiometer vs. Position Sensor Report” in the subject line, and be sure to include your contact information.

Digital Speed Potentiometer – New Pluggable Terminal Strip Option

admin2 — Sat, 11 Dec 2010 16:31:22 +0000

Digital Speed Potentiometer with Scalable Display & User I/O

A microprocessor based digital speed potentiometer that can directly replace a conventional, 3-wire analog speedpot or motorized speedpot for most AC and DC drives. The desired set speed is entered into the large, ½ inch LED display through the convenient frontpanel interface, and display units are now programmable for virtually any unit of measure.

The attractive panel mount unit is easy to install in industry standard 1/8 DIN cut-out dimensions. The electrically isolated common signal permits direct wiring from the unit terminal block to the drive’s potentiometer terminal points.

This speed pot offers the same enhanced display options and capabilities featured in our other digital control products, as well as the Universal Power Supply and rugged screw type terminal strip.

Typical Applications

This is ideal for new equipment, as well as for retrofitting most AC or DC drive systems where precise, repeatable speed setting and digital readout are desired. It is also ideal in applications where high vibration and other environmental factors can cause normal speedpot settings to drift.

Standard Features

Inhibit function selectable from a number of modes
Control mode selectable between rate and time
Jog function selectable from several modes
Factory default function – reset to factory setting
User-default storage capability allows user to store/recall a known good set of parameters while experimenting with new settings

For more information on Dart Controls solutions, please send an email to MyFeedback@dee-inc.com. DEE is a Trusted Supplier and Expert in providing Cost Savings, Fast Multiple Solution Options, Supplier Reduction, and Time Savings. We Help Manufacturers Find Solutions and Exceed Their Goals.™

New, 24/7 Vibration Monitoring Protection for Your Most Critical Machinery

admin2 — Wed, 23 Jun 2010 17:37:29 +0000

This In-line Vibration Transmitter installs in-line with any industrial accelerometer, and converts the vibration signal to a 4-20 mA velocity output that can be trended with today’s PLC, DCS and SCADA systems. Its sleek design installs right into the cable run, no DIN rails, cabinets or special power required. With a three pin output connector, you can still gather dynamic vibration signals with a vibration analyzer while the PLC monitors overall trends. Now you can take your existing accelerometers and turn them into 24/7 vibration monitoring devices for your most critical machinery. Features include: simple installation, low-cost, adapts easily to accelerometers, and interfaces directly with control systems. For more information, please send an email to MyFeedback@dee-inc.com, and be sure to include your contact information.