IP 66 Enclosures

ABS electronic enclosures from ROLEC, Bridgeville, PA, are now available in 10 sizes, many of which are compatible with other standard products. TechnoBOX enclosures are suitable for a wide range of industrial electronic and electrical applications. Separate screw channels outside the enclosure's interior maximize the space available for components. The ergonomic and aesthetically pleasing beveled lid is recessed to accommodate a membrane keypad or front plate. The lid screws are made of corrosion-resistant stainless steel and are captured to avoid accidental loss.

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Digital Multimeter

Conrad Electronic, Hirschau, Germany, offers a digital multimeter. The Voltcraft VC175 multimeter is a highly robust unit with automatic scaling. The device's voltage measurement range of up to 600 V enables professional tasks to be performed reliably and safely. Specifically, the AC and DC voltage ranges are from 1 mV up to 600 V; and the AC and DC current measurement range is from 0.1 μA up to 10 A. The unit's current measuring ranges are also protected by high-performance fuses against overload.

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Touch Panel Computer

Technologic Systems, Fountain Hills, AZ, unveiled the newest addition to its touch panel computer (TPC) suite. Built on the NXP i.MX6 Cortex-A9 ARM CPU and available in a solo or quad core configurat ion, the TS-TPC-7990 comes in either a resistive or capacitive screen, making it ideal for applications that require a touch-based human machine interface (HMI) such as medical terminals. An onboard socket, capable of supporting NimbeLink cellular modems, provides a simple path to cellular connectivity for applications such as remote equipment monitoring and control.

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External Power Supply

Gresham Power Electronics, Salisbury, UK, has launched a series of desktop power supplies for medical applications. The universal AC input of the Polytron MUI310-A product range offers a wide selection of output voltages from 12 to 44 Vdc and up to 310 W output power. Typical applications include ultrasound equipment and monitoring systems. The power supply is provided in a compact 197.61 × 101.85 × 51.05 mm (7.78 × 4.01 × 2.01 in.) desktop package and meets a range of safety approvals and compliances, including CEC level V1, UL/CUL 606011, EN 60601-1, IEC 60601-1 3rd Edition, FCC, CE, CB, Active PFC Function DoE VI, and RoHS.

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Ground Fault Relay

NK Technologies, San Jose, CA, has introduced a new DC ground fault detector. The DG series was designed to keep operators and machinery safe from accidental shocks by detecting fault currents quickly and easily. According to the company, it can be installed at a fraction of the cost of products currently available. The one-piece, solid-core design allows for installation over wires feeding loads to about 50 A. The output relay will change state at factory setpoint between 5 and 50 mA of DC current to earth. Features include electromechanical relay outputs, externally powered with choice of fail-safe or standard auto reset or latching contact, and a solid core case.

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Battery Holder

Memory Protection Devices, Farmingdale, NY, has released a new lithium battery holder. Part number BU1632-JJ-1-G holds a single CR1632 Lithium battery. According to the company, it is designed to meet the stresses of handheld portable applications. A heavy-duty plastic body and robust battery contacts meet requirements for typical medical products. Contacts were specifically designed for the rigors of portable applications and have gold-flash-over-nickel plating onto a phosphor bronze base metal. The contacts feature low electrical resistance and offer intermittent free connections.

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Power Supply

A series of rugged AC-DC chassis-mount power supply units from XP Power, Sunnyvale, CA, delivers up to 350 W of power. Incorporating built-in fan cooling, screw terminal connections for simple installation, and low EMI emissions, the SMP350 series offers easy integration into end equipment, reducing design and manufacturing costs and time to market. Packaged in a 3.6 × 7 × 1.7-in. enclosure, the series delivers power densities up to 13 W/in.3, enabling a compact, highly efficient and low-noise solution. Versions suitable for use in medical equipment offer reduced earth leakage current of less than 300 A.

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Power Supply

Power Partners, Hudson, MA, has released a 65 W, 2 × 4 in. AC/DC open frame power supply available in single-output models. The PEA65 series delivers maximum 65 W as a Class I power supply with a universal input voltage range of 90–264 VAC and six output voltage selections (12, 15, 19, 24, 36, and 48 V), with measurements in a 2 × 4 × 1.31 in. package and weighs under a half pound (0.44 lb). The series is approved and certified to UL/cUL/TUV 60950-1 and is compliant to Energy Star V2.0 and ErP STEP 2. Additional highlighted features of the series include short circuit, over-voltage, and overload protection, 5000 m altitude operation rating, operating temperature of 0° to +70 °C (derating), 100 percent burn-in/hi-pot testing, and MTBF of >100K hours per MIL-STD-217F.

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Self-Clinching Captive Panel Screws

Self-clinching captive panel screws from Penn-Engineering, Danboro, PA, install permanently into stainless steel enclosures to enable easy access whenever necessary and eliminate risks associated with loose screws. The PEM® PFC4™ captivated screw remains reliably in place where designed in a door or panel and will not loosen, fall out, or damage internal components. The spring-loaded fastener assemblies comply with UL 60950 equipment access standards. They install successfully in stainless sheets as thin as 0.060 in./1.53 mm with hardness up to HRB 88. They are available in assorted screw lengths and in thread sizes #4-40 through #10-32 and M3 through M5.

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Tabletop Enclosures

Designer tabletop electronic enclosures are now available in a new smaller 100 size from OKW, Bridgeville PA. The new size increases the range to four plan sizes. According to the company, the ergonomic EVOTEC is elegant and comfortable to use, but tough enough for challenging working environments. It can also be wall mounted for access control, and it is available in two versions: one with a large flat top for switches, push buttons, and touch displays and the other with a 12° inclined top for desktop applications. The sloping top version can be specified either with or without a recess for a membrane keypad or product label. The new 100 size and the recently launched 150 size are available only with the flat top.

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General-Purpose Digitizers

Spectrum Instrumentation, Grosshansdorf, Germany, has added five new models to its general-purpose M2p.59xx series of PCIe 16-bit digitizer cards. The new versions extend the performance range by increasing the maximum sampling rate from 80 MS/s up to 125 MS/s. The increased sampling rate, together with higher overall bandwidth, enables the new cards to capture a wider range of electronic signals. It makes them ideal for use in applications where signals in the DC to 50 MHz frequency range need to be acquired and analyzed with speed and accuracy. Based on the latest 16-bit analog to digital (ADC) technology, the M2p-596x series includes models that provide 1, 2, 4 or 8 input channels. Multichannel models each have their own ADC and signal conditioning circuitry to allow fully synchronous acquisitions on all the inputs.

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Controlled Room Temperature Indicator

A controlled room temperature (CRT) indicator from Timestrip, Cambridge, UK, provides evidence of temperature breaches in the storage or transport of medical products outside the 15°–25 °C (59°–77 °F) range. Designed for the medical and pharmaceutical sectors, the indicators travel with the products from the manufacturer through to the end user and give a clear visible indication if transport or storage conditions have moved outside the acceptable temperature thresholds. Controlled room temperature (or ambient) shipping and storage is an increasing concern for the healthcare sector as adoption of international Good Distribution Practice (GDP) increases.

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XY-Theta Alignment Stage

An alignment stage from Optimal Engineering Systems, Van Nuys, CA, is a high-resolution, high-repeatability XY-theta stage for such applications as angular glass cutting and grinding and laser cutting and drilling. The linear resolution of the X and Y axis is 5μ (non-micro-step) or 0.125μ (20 micro-steps per step motor driver in use). The repeatability is 1.5μ, and positional accuracy is 5μ. The 1-mm per-turn lead screws and preloaded V-groove and crossed roller bearings add to the high precision and stiffness of the XYR-03-01 alignment stage. The linear travel of the X and Y axes is 50 × 50 mm.

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Automated Dispensing System

Nordson ASYMTEK, Carlsbad, CA, has released a new automated dispensing system for medium and bulk volume deposits of single- (1K) and two-component (2K) materials in electronics manufacturing and printed circuit board assembly. The Helios™ SD-960 Series is ideal to deposit volumes greater than 1 cc, and line widths and dots that exceed 1 mm, but it can deposit volumes down to 0.3 cc and line widths as narrow as 0.3 mm. The system supports highly abrasive thermal interface materials, silicones, epoxies, and grease for applications such as potting, sealing, gasketing, and structural adhesives. The system was made specifically to accommodate large parts and substrates. The frame is 200 mm taller and the robotics 150 mm higher for more overhead clearance than a standard dispensing platform.

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Custom ESD Foam Packaging

BEST Inc., Rolling Meadows, IL, has released a custom ESD insert cutting program. The inserts are designed to protect high-valued PCBs or electronic components from shipping damage during the design phase prior to the board and packaging design being finalized. The company can take in material and design the package cutout from mechanical drawings or samples. Custom cutouts can be shipped within two working days after acceptance of the drawing.

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Medical Design Briefs Magazine

This article first appeared in the August, 2018 issue of Medical Design Briefs Magazine.

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