Category Archives: Sensors / Proximity Sensors

Finder’s 67 Series 50A, High Capacity PCB Relay Efficiently Minimises Coil Power Dissipation.

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For applications where high current loads need to be switched but power is limited, Finder’s 67 Series 50A, high capacity PCB relay efficiently minimises coil power dissipation.

The relay has a high continuous current contact rating of 50A, and peak current of 150A (5msec), providing two and three pole NO double break contacts.

Developed for inverters with DC inputs up to 1500V and AC outputs up to 690V, and with a 3mm or 5.2mm contact gap according to VDE 0126-1-1, EN 62109-1 & 2 regulations, the 67 Series satisfies the arduous requirements of equipment designed to meet the increasing demand for solar energy, particularly in remote locations and at high altitudes (up to 4000m above sea level).

The relay is also suitable for use in photovoltaic inverters, battery-operated or portable systems, domestic appliances and for 3 phase motor loads up to 7kW.

The Energy Saving Mode feature allows for coil operation in ambient temperatures up to 85C with minimum holding power of just 0.17W

The added air circulation provided by the 1.5mm stand-off between the relay and PCB aids temperature regulation.

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Finder Adds 3 New Application-Specific Movement Detectors to its 18 Series Range

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Based on new innovative electronics and optics Finder has added 3 new application-specific movement detectors to its 18 Series range.

Specifically for sensing within larger rectangular areas such as hotel lobbies and long corridors, the 18.41 surveys an area up to 15 metres either side of the device, giving an extensive total detecting zone of 30 metres long by 4 metres wide, from just a single unit.
 
Central to the 18.51 is an advanced lens and electronics system that achieves two detecting zones with different sensitivities. The central 4 x 4 metre zone responds to very small movements, able for example to pick-up on the presence of a person quietly working at his workplace. But additionally, within an extended 8 x 8 metre zone, it will also respond to normal movements. This product is particularly targeted at offices, schools, and the workplace in general.
 
“Twin-Mirror” technology gives the 18.61 its exceptionally wide viewing angle of 180°. Specifically designed for fitting into new or existing wall boxes, the 18.61 can be installed in corridors along with the 18.41 but is equally suited to small spaces such as bathrooms or passage areas. Essentially it can be installed as a direct replacement for a wall mounted light switch or push-button.
 
All three models share the common characteristics of a wide 110 … 230 V AC power supply range, a 10A rated NO output contact, adjustable ambient light intervention threshold and a Light-Off delay adjustable from 12 to 35 minutes.
 
Depending on the type, these new products can be installed on the ceiling, in suspended ceilings or in recessed or flush mounting boxes.

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The Honeywell SMART Position Sensor, Rotary Configuration, is a Non-Contacting Sensing Solution for Absolute Position Sensing with Enhanced Accuracy.

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Honeywell’s SMART Position Sensors are some of the most durable, adaptable, and lightweight absolute position sensors available in the industry, enabling highly accurate motion control and improving operation efficiency and safety.

Why is the SMART Position Sensor smart? SMART means that this is a sensor that can essentially think for itself. With the SMART position technology, Honeywell has utilized MR (magnetoresistive) technology through the ASIC (Application-Specific Integrated Circuit) at a level never before accomplished. The rotary configuration joins Honeywell’s SMART Position Sensor family of proven linear and arc configurations.

The SMART Position Sensor, Rotary Configuration, is a non-contacting sensing solution for absolute position sensing with enhanced accuracy. It senses the position of a magnet relative to the sensor in a range of 0º to 360º.

Honeywell uses a patented combination of an ASIC and an array of MR sensors to accurately and reliably determine the position of a magnet collar attached to a rotating object so that the object’s position can be determined or controlled. The output and the MR sensor sequence determine the nearest pair of MR sensors to the center of the magnet location. The output of these two MR sensors is then used to determine the position of the magnet between them.

The SMART Position Sensor, Rotary Configuration, fits on a 25,4 mm [1 in] shaft. A mounting tool fixture (purchased separately) provides repeatable installation.

Value Propositions
*  Non-contact design: Eliminates mechanical failure mechanisms, reducing wear, which improves reliability and durability, and minimizes downtime
*  Combined patented MR sensor and ASIC technology provides absolute position sensing:
   – Helps OEMs reduce warranty costs because they don’t have to replace worn or broken component parts
   – Helps end-users reduce downtime due to fewer calibration requirements
*  No internal moving parts: Automotive-grade potting makes the sensor more resistant to vibration, shock, and extreme temperatures, improving reliability
*  Repeatable output: Occurs within a 3,0 mm ±2,0 mm [0.118 in ±0.079 in] air gap between the sensor and magnet collar, expanding application opportunities
*  High accuracy: Measures values down to 0.01º; better accuracy can provide better application system accuracy
*  IP67 and IP69K sealing: Allows for use in harsh environments such as dust, immersion up to 1 m [39.37 in] of water for 30 minutes, and high pressure water sprays
*  High shock and vibration resistance: Allows for use in a wide variety of tough applications

Features and Benefits
*  Minimal signal error: Up to 2,50 mm [0.10 in] of radial error, simplifying design-in
*  RoHS-compliant: Materials meet Directive 2002/95/EC

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Honeywell Expands Portfolio with New SS39ET Series Linear Hall-Effect Magnetic Position Sensor IC

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Low-cost, Versatile SOT-23 Subminiature Surface Mount Package Ideal for Compact Designs with Tight Space Requirements

Honeywell is extending its Linear Hall-effect Sensor Integrated Circuits (IC) product line with the addition of the new SS39ET Series to its SS49E and SS59ET portfolio of low-cost Linear Hall-effect devices. With the launch of the SS39ET Series, Honeywell’s Linear Hall-effect product family now consists of three package styles with different lead configurations:

*  SS39ET: subminiature SOT-23 surface mount package (tape and reel format)
*  SS49E: leaded flat TO-92 package (bulk packaging, 1000 units per bag), SS49E-T2 (straight leads), and SS49E-T3 (formed leads) on tape in ammopack (fan-fold) format
*  SS59ET: miniature SOT-89B surface-mount package (tape and reel format)

“With the launch of the new SS39ET Series, customers can choose the package style and size to meet their application needs,” said Josh Edberg, senior global product marketing manager for Honeywell Sensing and Control. “Customers will appreciate the SS39ET Series’ SOT-23 subminiature footprint that takes up less space on the PC board, allowing more design flexibility and cost savings in their application.”

The SS39ET Series are designed to monitor magnetic fields from a permanent magnet or an electromagnet. All packages can be supplied on tape for automated, lower-cost assembly. These devices respond to both North and South poles, and can be powered with voltages as low as 2.7 V.

A wide temperature range of -40 °C to 100 °C [-40 °F to 212 °F] allows use in many environments, and the thermally balanced, integrated circuit provides stable operation over the full temperature range. Thin film resistors improve accuracy and provide a stable output. The energy-efficient, low current consumption of 6 mA at 5 Vdc and the 2.7 Vdc to 6.5 Vdc supply voltage range allow circuit design flexibility.

Potential industrial applications for the SS39ET Series include:
* Anti-tampering magnetic field sensing in smart remote utility meters
* Basic current sensing for motor load monitoring, detection
* Pump control in heavy-duty equipment and household appliances
* Simple linear or angular displacement sensing
* Handlebar/throttle position sensing in e-bikes and scooters
* Current sensing in appliances
* Speed adjustment trigger in tools and appliances
* Magnetic code reading in safes, security, and building access control systems.

Potential medical applications for the SS39ET Series include:
* Position sensing in infusion pumps

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Honeywell Introduces SS360NT/SS360ST/SS460S High Sensitivity Bipolar Latching Digital Hall-Effect Sensor ICS

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Small, Sensitive, Versatile Devices Provide a Faster Latch Response Time

Honeywell expands its magnetic position sensor product portfolio with the SS360NT/SS360ST/SS460S High Sensitivity Bipolar Latching Digital Hall-effect Sensor Integrated Circuits. Bipolar latching magnetics make these products well-suited for accurate speed sensing and revolutions-per-minute (RPM) measurement.

For brushless DC motor manufacturers that need latching sensor ICs with reliable, consistent performance for efficient and small designs, Honeywell’s family of new High Sensitivity Latching Digital Hall-effect Sensor ICs respond to low magnetic fields and offer consistent repeatability while providing the fastest response to a change in magnetic field for enhanced motor efficiency. These new sensors offer reliable switching points with high magnetic sensitivity of 30 G typical (55 G maximum) without using chopper stabilization on the Hall element, resulting in a clean output signal and the fastest latch response time in its class.

“Brushless DC motor manufacturers need sensors with high sensitivity, stable magnetics, and very fast response times to commutate the motor as efficiently as possible,” said Josh Edberg, global product marketing manager for Honeywell Sensing and Control. “By designing high-sensitivity sensor ICs without chopper stabilization, this family of sensors enables faster response times, which ultimately means more efficient motors.”

These small, sensitive, and versatile devices are operated by the magnetic field from a permanent magnet or an electromagnet. They are designed to respond to alternating North and South poles.

The SS360NT/SS360ST/SS460S can be used in a wide range of applications. Potential industrial/commercial applications include brushless dc motor commutation, flow-rate sensing for appliances, speed and RPM sensing, tachometer/counter pickup, motor and fan control, and robotics control. Potential transportation applications include speed and RPM sensing, tachometer/counter pickup, motor and fan control, electronic window lifts, and convertible roof position. Potential medical applications include medical equipment that utilizes electric motors.

These devices operate over the full temperature range of -40 °C to 150 °C [-40 °F to 302 °F]. Two package styles are available: Subminiature, SOT-23 surface mount package (SS360NT/SS360ST) supplied on tape and reel allows for compact design with automated component placement; the small, leaded, flat TO-92-style package (SS460S) allows for a compact PC board layout.

The SS360NT/SS360ST/SS460S offer a wide operating voltage range of 3 to 24 Vdc, allowing for potential use in a wide range of applications. Built-in reverse voltage enhances the protection of the sensor and the circuits. Their durable design allows operation up to 150 °C [302 °F]. Additionally, RoHS-compliant materials meet Directive 2002/95/EC.

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Honeywell Expands Hall-Effect Rotary Position Sensor Portfolio with New RTY Series

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Customizable, Durable Sensors Provide an Industry-Leading 12M Cycle Product Life for Use in Harsh Industrial and Transportation Applications

Honeywell introduces its RTY Series Hall-Effect Rotary Position Sensors that provide a cost-effective rotary position sensor solution with a variety of options (e.g., sensing range, pinout, voltage) that allow customers to customize the sensor configuration to meet their specific application needs, especially those in harsh environments.

“Design engineers need an absolute position sensing solution that meets their specifications without being over-engineered,” said Chris Gottlieb, senior global product marketing manager for Honeywell Sensing and Control. “The cost-effective, configurable RTY Series is an ideal solution. Design engineers will appreciate the sensor’s industry-leading 12 million cycle product life and eight operating ranges, up to 360°, that often allow OEMs the range of travel needed for the application.”

The RTY Series’ solid-state Hall-effect technology provides non-contact operation and low torque actuation which reduces worn-out mechanisms and at least a 12M cycle product life. The sensor’s IP67-sealed package has an integral connector. The integrated reverse polarity protection provides protection against installation errors. Robustness against electromagnetic interference is proven out by automotive-grade EMI/EMC testing. Industry-standard AMP termination, 32 mm mounting pitch, North American and European pinout styles, and the compact package provide easier drop-in replacement in existing applications.

The RTY Series uses a magnetically biased, Hall-effect integrated circuit (IC) to sense rotary movement of the actuator shaft over a set operating range. Rotation of the actuator shaft changes a magnet’s position relative to the IC. The resulting flux density change is converted to a linear output. The IC, together with conditioning and protection circuitry, and the permanent magnet, is sealed in an IP67-qualified package for durability in most harsh environments.

Eight operating ranges (50°, 60°, 70°, 90°, 120°, 180°, 270°, and 360°) are tolerant to over-travel and allow OEMs to choose the range of travel needed for their specific application. Low voltage and high voltage versions cover an input voltage range of 4.5 Vdc to 30 Vdc. Most applications require no lever, and no brackets are necessary.

Potential transportation applications for the RTY Series sensor include position and movement detection of pedals, throttles, gear shift, levers, steering, linkages, and hitches (trucks, buses, off-road vehicles, industrial/construction/agricultural vehicles and equipment, cranes), suspension displacement/kneeling (buses, trucks), and tilt/trim position (boat engines, tilling equipment).

Potential industrial applications for the RTY Series sensor include valve and HVAC damper control, and irrigation pivot control.

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For Sensing, Eaton Moeller Series Has All the Answers

For almost every industrial sensing requirement, Eaton’s Electrical Sector is now offering dependable, easy-to-use and cost-effective solutions. The company’s latest range of sensing products is exceptionally comprehensive and includes not only inductive sensors with cylindrical and square housings, but also capacitive sensors, an extensive family of optical sensors, and mechanical limit switches with plastic and metal bodies.

Eaton has also published a new brochure detailing its sensor products, entitled ‘Versatility in the Range -Flexible, Robust, Innovative’, which is available free on request or can be downloaded instantly from the Eaton website at (http://www.moeller.net/en/support/related_downloads.jsp?group=dlg_23718).  The publication reference is W1300-7618en.

Eaton offers its inductive sensors in five different series. The E52 and E56 series cube and pancake sensors are shock resistant and have an IP66 or better ingress protection rating, making them ideal for use in tough environments. Global series cylindrical sensors for standard applications are available in M8, M12, M18 and M30 versions and are offered in both ac and dc versions, while for applications demanding extra performance, Eaton supplies iProx and E57Premium+ inductive sensors.

Available with stainless steel housings from 4 mm to 30 mm in diameter, iProx and E57Premium+ sensors feature enhanced noise immunity, and a 360º LED visible from any angle for output status indication. In addition, users of the innovative iProx types can access extra functions with a simple programming tool. This includes adjusting both the sensing band and noise immunity, converting from Normally Open to Normally Closed, and even applying time delays and simple logic functions. The iProx software contains an extensive database of competitor models and enables those looking for replacement sensors to clone iProx to the nearest match.

Eaton optical sensors are also available in cylindrical and cube formats and can be supplied in versions for through-beam, polarised reflex and diffuse reflective applications. Over 30 models in the range include Perfect Prox technology, which provides effective background rejection that’s easy to set up. In addition, cube format models in the SM series feature the microprocessor-controlled TargetLock system that ensures fast set up and optimum performance whatever the application.

Capacitive sensors from Eaton are primarily intended for the detection of non-metallic targets, including liquids and granulated or powdered materials. They are offered in plastic-bodied cylindrical versions, and can be supplied for use with either ac or dc supplies.

For applications where conventional mechanical limit switch sensing is preferred, Eaton offers two versatile product ranges. LS-Titan limit switches are available with either metal or plastic bodies and feature interchangeable heads for maximum versatility, while the rugged Global E50 products feature a rugged design that makes them ideal for heavy-duty use.

Sealed effectively against the ingress of dust and liquids, including cleaning agents, lubricants, cutting oils and coolants, Global E50 limit switches can be supplied with pressure or rotary-function heads, and are complemented by a large variety of optional operating rods and levers.

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Honeywell, Schaffner & Schurter for Medical Applications

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Honeywell Sensing and Control, Schaffner & Schurter

Three big names for medical applications provides medical OEMs and designers with a broad suite of high performance and reliable Sensors, Switches, Filters,  IEC Inlet Filters, Power Entry Modules, Connectors, Circuit Breakers, Fuse Holders, Chokes and Touch Panels used in hundreds of medical applications.  Doctors and patients must trust that the medical products they use will perform safely, reliably and effectively.  These manufacturers understand the needs of the medical industry and work closely with medical companies to provide the right products for each application. The combination of product leadership, application expertise and stable delivery make these three expert manufacturers the natural choice when choosing the right electrical requirements for your medical applications.   E Preston Electrical is a franchised distributor for each of these manufacturers offering long term support for your future needs.

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Honeywell Sensing and Control, Schaffner & Schurter

Whatever the application:  Infusion Pumps, Respiratory Machines, Anesthesia Machines, Ventilators, Dialysis Machines, Oxygen Concentrators, Diagnostics Appliances; not to mention the many variety of devices required for Therapy, Monitoring or Laboratory applications – all requiring reliable high standard products these manufacturers offer within the medical industry.

Honeywell, Schaffner and Schurter products are ideal for use in medical appliances, meeting all the typical requirements such as durability, reliability, safety orientation and design ensuring hygiene as well as user-friendliness and maximum functional integration.

Honeywell, Schaffner and Schurter supports medical equipment manufacturers worldwide, through technically sophisticated and well-engineered products, in their development work. That is why they consistently align innovation process with the technological trends of this cutting-edge industry.

  HONEYWELL                                   SCHAFFNER                                        SCHURTER

     Medical Applications                      Medical Applications                       Medical Applications    

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Honeywell Introduces its Hawk™ Resolvers 1-Inch Series, Fully Housed Configuration

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For Manufacturers who Need Accurate, Reliable, and Durable Non-Contact Rotary and Angle Position Sensing in Defense and Space Applications

The 1-Inch Series resolvers are manufactured and delivered up to 1.5 times faster than many competitors’ products, helping to meet special application requirements and minimize production time. With the launch of the Hawk™ Resolvers, Honeywell now offers two off-the-shelf versions, as well as resolvers that can be customized to meet specific end-user needs.

Potential defense applications for the 1-Inch Series include positioning for electro-optical systems, gimbals/communication pedestals, infrared systems, vehicle transmission systems, and test equipment. Potential space applications include positioning for satellite, satellite antenna, space station, and space
vehicle solar panel arrays.

The Hawk™ 1-Inch Series Resolvers offer several other competitive advantages, including:

* Shock specification of 50 g, 11 ms, vibration specification of 15 g, 10 Hz to 2000 Hz and wide operating temperature range of -50.8 °C to 93.3 °C [-60 °F to 200 °F] which allow for use in harsh military and aerospace applications;

* Wide excitation voltage range of 2 V to 15 V which allows customers to standardize on a resolver that meets their excitation voltage needs, simplifying sourcing and delivery, and saving time;

* Global support and over 30 years of resolver engineering expertise.

Unlike many rotary position sensors, the Hawk™ Resolvers offer sensing in harsh military and space environments. In addition to its non-contact design, the lack of electronics, and the use of space-qualified materials, the Hawk™ Resolvers meet multiple military/aerospace specifications: DO-160D, MIL-STD-202G, MIL-STD-810G, MIL-STD-81963B, MIL-STD-461F, andcomply with space outgassing requirement SP-R0022.

The fully housed configuration with bearing/shaft has a small outer diameter of 1 inch, which allows for use in size-restricted applications. The single speed operation (1 magnetic pole pair) allows for cost-effective angle resolution over a 360°+ range, and the wide excitation frequency range of 2000 Hz to 5000 Hz provides a wide variety of choices with which to power the device. The transformation ratio of 0.45 or 1.0 offers customers two choices, increasing flexibility within the application.

The Honeywell Hawk™ 1-Inch Series Resolvers are also available with a variety of options, including:

* Custom trim designed to allow tighter accuracy;
* Connections which include custom lead wire, cable, connector on unit, or connector on cable;
* Titanium housing which provides enhanced durability and resistance to corrosion; lightweight;
* Custom redundant version (two independent resolvers within the same housing) which provides reliable back-up/fail-safe in critical applications;
* Transformer for 360°+ rotation (continuous).

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Honeywell Extends Its TruStability® Pressure Sensor Product Line with a Single Side Liquid Media Option

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Allows One Sensor Port to Be Used with Condensing Humidity or Directly with Non-corrosive Liquid Media

Honeywell introduced a single side liquid media option to its extensive line of TruStability® Pressure Sensors originally introduced in July 2009. The new single side liquid media option allows customers to use one port of the sensor with condensing humidity or non-corrosive liquid media, such as de-ionized water, eliminating the complexity and expense of having to protect the sensor from this type of media. Honeywell has developed this option because of the many applications where condensing humidity conditions exist or where liquid media is the desired media to be measured. Until now, Honeywell’s TruStability® Pressure Sensors have been intended for use with non-corrosive, non-ionic working fluids such as air and dry gases.

The TruStability® Pressure Sensor product line is comprised of the HSC (High Accuracy Silicon Ceramic) Series and the SSC (Standard Accuracy Silicon Ceramic) Series that offer customers three key benefits not found in other pressure sensors currently available:

* Industry-leading stability helps prevent drift over time or from temperature and humidity extremes; often eliminates the customer’s need to calibrate after mounting to the printed circuit board (PCB), and also the need for the end-user to calibrate the device;

* Temperature compensated and calibrated, providing an extremely tight accuracy specification;

* Modular and flexible design offers a wide variety of package styles and options, all with the same industry-leading performance specifications.

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The HSC Series is designed to provide an industry-leading ±1% total error band specification, compensated across a 0 °C to 50 °C [32 °F to 122 °F] temperature range. The SSC Series is designed to provide a ±2% total error band specification, compensated across a wider -20 °C to 85 °C [-4 °F to 185 °F] temperature range.

The HSC and SSC Series’ footprint is very small in comparison to most silicon pressure sensors, including the current Honeywell portfolio. Despite their small size, they are temperature compensated, calibrated, and provide an amplified signal, typically allowing the customer to remove the components associated with signal conditioning from the PCB to increase space and reduce costs often associated with those components (e.g., acquisition, inventory, assembly). This integrated capability often eliminates problems that could occur from having multiple signal conditioning components across the PCB.

Both series offer the option of analog or digital outputs. Digital ASIC output in either I2C or SPI protocols from digital sensors accelerates performance through reduced conversion requirements and the convenience of direct interface to microprocessors or microcontrollers. Custom calibration ranges, output options, power options (3.3 Vdc or 5.0 Vdc), pressure types (absolute, differential, gage, compound), pressure ranges (1 psi to 150 psi), a wide array of mounting options (lead through SIP, DIP, and surface mount technology), and multiple package options provide support for many unique applications. They are designed to provide digital correction of sensor offset, sensitivity, temperature coefficients, and non-linearity.

Potential medical applications include airflow monitors, gas flow instrumentation, hospital diagnostics (gas chromatography, blood analysis machines), kidney dialysis machines, oxygen concentrators, pneumatic controls, respiratory devices/machines (ventilators, anesthesia machines, patient monitoring), and sleep apnea equipment. Potential industrial applications include barometry, flow calibrators, gas chromatography, gas flow instrumentation, HVAC, life sciences and pneumatic controls.

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