The optoNCDT 1710-1000 is used for measurement objects that have a high degree of freedom or movement. Other potential applications are in harsh ambient conditions, where the sensor has to measure onto the object from a safe distance or if the target is in a vacuum. The sensor also performs very well in high target temperatures or when it is not possible to mount the sensor close to the target. Like all other models in the 1700 series, the optoNCDT 1710-1000 also benefits from a unique RTSC circuit for the real-time compensation of surface influences. This means that a high quality signal is obtained even when changing reflections occur from the target surface.

www.micro-epsilon.co.uk

Designers can initiate the calibration procedure at any time by grounding the J1-pin-4, which allows the device to be remotely calibrated and then mounted in the equipment. When the system calibrates the sensor, it raises the current through the LED from 0mA to 14mA, until the phototransistor reaches the preset point.

The OCB350 Series sensor consists of an infrared LED and phototransistor packaged in an opaque plastic housing that enhances ambient light rejection. The housing features an opening designed to accommodate clear tubing with outer diameters of 0.0625” (1.6mm), 0.125” (3.2mm) or 0.1875” (4.8mm). The presence of clear liquid causes the phototransistor to sink the maximum current, while the presence of dark liquid causes it to sink the minimum current. As bubbles pass through the tube, the signal will vary between the “liquid present” and “no liquid” states. If no tube is present, the phototransistor sinks current between the dark fluid and clear fluid states.

The infrared LED features a forward DC current of 50mA with a peak current of 1.0A. Reverse DC voltage is 2.0V and power dissipation is 100mW. The output phototransistor features a maximum collector-emitter voltage of 24V or 30V, with collector DC current of 50mA and power dissipation to 100mW. Operating temperature range is from -40ºC to +85ºC.

Typical pricing for the OCB350 Series fluid sensor is $13.15 each in quantities of 1k pieces. Lead time, if stock is not available, is from 6 to 8 weeks.

www.optekinc.com

The breakaway connectors also feature ITT’s spring probe pin/pad contact system. The contact design utilizes an internal clip mechanism that stays in constant contact with the contact itself, helping to reduce electrical contact resistance. Additionally, the spring probe contact system accommodates misalignment issues, making the contact system much more forgiving.

The spring probe system allows the connector receptacle to house individual touch pad contact areas, providing a highly effective electrical engagement point of contact. Further, the spring probe contact system and touch pads allow for ease of cleanability in the field, where dirt, moisture, mud, sand, and other contaminants may be present. The individual touch pad contacts contain no crevices for contaminants to accumulate.

The Nemesis Series sealed, lightweight, miniature connectors are resistant to salt spray for more than 500 hours, measure less than 15mm in diameter, and have an anti-reflecting coat. Maximum current rating for the Nemesis WT connectors is 3A and voltage rating is 200VAC RMS at sea level. Minimum insulation resistance is 5000MΩ, and maximum contact resistance is 8mΩ. Operating temperature ranges from -40°C to +100°C.  Life span is to 2500 cycles.

The MKJ Series miniature, circular connectors are available with a variety of mounting options for both crimp and PC board contacts, including in-line, jam nut, front mount, square flange mount and flange mount. The connectors are up to 71% lighter and 52% smaller than comparable devices, and feature size 23 pin-and-socket contacts that have the equivalent electrical performance of size 22 contacts. Dielectric withstanding voltage at sea level is 500VAC RMS, 60Hz. Operating temperature ranges from -55°C to +150°C.

Typical pricing for the Nemesis breakaway connectors is approximately $90.00 per mated pair for 1,000 sets. The breakaway connectors will be available in Q2 2010.

• Long sensing ranges for extended sensing ability
• Accurate switching performance for precise positioning tasks
• Highly visible red light for easy alignment
• At-a-glance status indication LEDs, viewable from all sides
• Two mounting options – holes or dovetail – for flexible sensor placement
• Impact-resistant ABS housing with rotating connector suitable for many applications

Ideal for use in material handling and conveying applications, the BOS 23K photoelectric block sensor provides a great combination of high accuracy and long sensing range at a reasonable price. In a typical application for example, two BOS 23K diffuse sensors with background suppression are able to monitor different colored totes as they travel from one production station to another without false triggering on the background.

www.balluff.com

The linear position sensors use emitter and receiver coil systems, precisely arranged on a printed circuit board, that are activated with a high frequency AC field and produce an inductive RLC circuit with the positioning element (resonator). As a result, the resonator is inductively coupled with the receiver coils. Different voltages are induced into the coils depending on the position of the resonator, and these voltages serve as a measure for the sensor signal.

To increase the speed and accuracy of measurement, LI-Q25 series linear position sensors have a coarse and a fine measuring coil system that is microprocessor controlled. An integrated processor provides an output signal in different formats: 0 to 10 V, 4 to 20 mA, IO-Link or SSI.

The linear position sensors have extremely short blind zones of only 29 mm on each side, along with a wide temperature range of -25 to 70°C. The sensors may also be programmed for different measuring ranges.

TURCK
www.turck.us

With a one-piece stainless steel sensing element, the sensor is used in rugged environments where a high cycle life and media compatibility.

The sensor features a wide operating temperature range, is compatible with a range of liquids and gases, has no oil, welds or internal O-rings and ranges up to 10 000 psi.

It is designed for use in water management, pneumatic and hydraulic equipment, HVAC equipment and for industrial OEM equipment.

The pressure sensor’s accuracy is below ±0.5% and it has an environmental protection rating of IP-66.

The analog outputs include 4-20 mA, 1-5/1-6 VDC, 0-50 mV and 0.5 to 4.5 ratiometric.

The AST4000 comes with a variety of threads, pressure ranges, outputs and electrical connections in order to make system integration seamless.

www.miningaustralia.com.au

An imperfect coil structure induces an unbalanced geometry and increases sensitivity to the position of the measured conductor within the sensor, or to the proximity of external electric cables. The RT series of sensors overcomes the problem of asymmetry resulting from the discontinuity at the sensor opening, which is inherent in conventional split-core Rogowski coils. LEM engineers have invented a unique magnetic coupling technology that allows a perfect extension of the magnetic flux at the loop opening, which compensates for coil asymmetry.

The thin, light and flexible format of the RT sensors allows them to fit into applications in which traditional current transformers are typically too heavy and bulky, especially when measuring high currents. Their split-core construction allows them to be easily wrapped around the conductor without dismantling cables or shutting down operation. The benchmark accuracy of RT series sensors provides enhanced performance in current and power monitors as well as energy meters.

www.instrumentation.co.za

The highly intelligent HYDRA Nitrate Analyzer System measures the concentration of dissolved nitrate as nitrogen (NO3–N) in water. The sensor uses two electrodes to determine the NO3–N concentration: a nitrate ion electrode and a chloride ion electrode. An optional electrode is also available for pH measurement.

The system’s HYDRA Analyzer is configured to periodically actuate a cleaning cycle using the integral spray cleaner in the nitrate sensor, minimizing the formation of biofilms or other coatings on the electrodes and keeping maintenance to a minimum. The cleaning cycles feature a user configurable period and duration. During the cleaning cycle the 4-20 mA output is held at either a preset value or the last value.

While useful in all types of water treatment applications, the HYDRA Nitrate Analyzer System is especially well suited for municipal wastewater treatment plants. Nitrogen primarily enters a municipal wastewater system as ammonia/ammonium compounds. Nitrification oxidizes the toxic ammonium ion into a much less toxic nitrate ion using an aerobic activated sludge process.

De-nitrification reduces the nitrate ion (NO3-) to nitrogen gas (N2) through an anoxic reaction in the same treatment basin or in a separate anaerobic digester. The NO3–N measurement helps optimize the methanol being fed to the digester, which minimizes cost and provides trend measurement of the total nitrogen (TN) in the effluent.

The nitrate ion electrode provides the primary measurement. A second electrode measures the Chloride ions in the sample. The HYDRA Analyzer subtracts the appropriate amount of signal from the nitrate measurement for accurate monitoring. The sensor also detects temperature, and the analyzer provides a temperature-compensation calculation for superior measurement accuracy.

The rugged nitrate sensor offers 1.25-inch NPT rear facing threads for attaching an extension/immersion tube for easy installation from catwalks or handrails. Internal signal conditioning allows the sensor to be mounted up to 200 meters from the analyzer. The sensor is extremely low-maintenance, featuring a movable electrode guard to facilitate easy electrode replacement when necessary.

ECD’s HYDRA Nitrate Analyzer System measures nitrate and chloride in concentrations from 0.1 to 1000 ppm, pH from 0 to 14 and temperature from 0 to 50°C (32 to 122°F). Accuracy is ±3 percent of reading with a response time of T90 1 minute.

Featuring a backlit LCD display that provides up to 4 lines of text and graphics, the HYDRA Analyzer includes two 4-20 mA outputs with two SPDT alarm relays. Input power is 110/220 Vac. It is housed in a rugged NEMA 4X enclosure.

www.ecdi.com

Tested by the independent laboratory, TUV Rheinland in Newton, CT, each product was evaluated for performance against radiated emissions, electrostatic discharge (ESD), radiated immunity, electrical fast transient (EFT), surge immunity, conducted immunity, and power frequency magnetic field immunity.

Products were tested and approved to the following standards:

Products approved to the new standards include:

AST2000, AST20HA, AST4000, AST4200, AST4300, AST43LP, AST4310, AST4400, AST44LP, AST4410, AST4500, AST4510, AST4520, AST4600, AST46HA, AST4700, AST4710, AST47LP, AST47HP, AST47SM, AST4900, Model1000 and Model5000.

www.astsensors.com

Specifically designed to detect combustible gases and carbon dioxide using infrared (IR) or catalytic bead sensor technologies, the Scott Freedom Direct detector delivers information on gas concentrations directly to a Scott controller without the need for a transmitter. By eliminating the use of the transmitter, the Freedom Direct detector reduces the initial investment needed to maintain plant safety.

This unique design provides the most economical way to add points of detection to remote locations or areas where local display is not required, providing a greater coverage of potentially hazardous areas.

The Freedom Direct detector also allows for easy installation, simple maintenance and quick sensor change-out in the field. The ability to switch between IR and catalytic bead sensor technologies in the field expands the detector’s capabilities and provides customers the ultimate flexibility.

The advanced sensor technology used with the Freedom Direct detector is protected from the harshest of environments by its rugged stainless steel housing which helps to maintain its life and operation. When combined with the 5.5 volt catalytic bead sensor, the detector can operate in temperatures up to 200°C (392°F).

When local display is required, the Freedom Direct detector can be upgraded seamlessly to the Freedom 6000 transmitter in the field, providing customers the functionality that they desire.

www.scotthealthsafety.com