Products

Brushless Blowers

AMETEK Technical & Industrial Products (Kent, OH) offers the Nautilair® 8.0" variable speed pre-mix brushless blowers that deliver a measured air/fuel mixture to optimize combustion and reduce nitrous oxide and carbon monoxide emissions. The single-phase, standard-output blowers achieve a maximum sealed pressure capability up to 9" of H2O, and maximum open flows exceeding 100 CFM. They accept line voltage input of 120 VAC.

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Electric Motor

DynaMotors (Cleveland, OH) has introduced the Model 56-2 DynaMotor, a single-phase, variable-speed electric motor for air-moving, pumping, and other applications. The motor features optional fan cooling, incorporates a NEMA 56 frame, and is suitable for applications up to 2 HP and 800 to 4,800 RPM. The motor integrates a variable-speed drive with an AC induction motor by embedding solid-state switches in the armature of the motor. It will not trip ground fault interrupt outlets, produces virtually no EMI/RFI, and eliminates voltage spikes and line voltage reflections. The motor interfaces through a board that accepts 0-10V, serial, or other control signals.

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Inclinometer Sensor

TURCK (Minneapolis, MN) offers a single-axis inclinometer sensor for detecting angular tilt with an adjustable measuring range of 360 degrees. The sensor measures angular tilt in reference to gravity. It uses a MEMS device that incorporates a microelectromechanical capacitive element into the sensor. The device consists of two parallel plate electrodes, one stationary and one attached to a spring-mass system. As the inclinometer tilts with the attached equipment, its acceleration produces deflection in the non-stationary electrode. The result is a measurable change in the capacitance between the two plates that is proportional to the angle of deflection. The signals produce a single analog voltage output or current output. The MEMS technology uses a microboard design. The sensor is IP68 rated and has a temperature range from -30 to 70 °C.

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Air Springs

Advanced Antivibration Components (New Hyde Park, NY) offers V11Z48MPSB Series air spring vibration mounts that feature vibration isolation of low-frequency machines. The air springs use elasticity of air as an isolator, which acts as a soft spring, eliminating moving parts. The mounts handle a range of loads by changing the inner air pressure. The metric isolators are suitable for oscillating conveyors, air compressors, water pumps, generators, and air blowers. They also can be used as actuators in tensioning devices. The bellows are made of synthetic rubber that incorporates a reinforced cord and wire. The clamping rings and upper and lower plates are made of stainless steel.

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Pneumatic Hand Pump

E Instruments (Langhorne, PA) has released the PHP 35/40 bar hand pump, a pneumatic/vacuum-generating unit designed for testing and calibrating pressure instruments. It features a pressure/vacuum changeover switch, which is used to select either vacuum or pressure output. The pump is equipped with a Vernier and release valve. Output pressure/vacuum can be adjusted while performing calibration. A release valve is used to release the built-up pressure/ vacuum after calibration.

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Shock Accelerometer

Meggitt Sensing Systems (San Juan Capistrano, CA) offers the Endevco® Model 7268C miniature triaxial piezoresistive accelerometer designed for measurement of short-duration shock across three axes and in three orthogonal directions. Housed in a package measuring 12.7 × 10.7 × 13.7 mm, the device is available in ranges of 500g, rugged to 5,000g shock with 17 kHz resonant frequency; and 2,000g, rugged to 10,000g shock with 26 kHz resonant frequency. Sensor frequency response is 0 to 3,000 Hz on the Z-axis, and 0 to 1,500 Hz on the X and Y axes. The sensor incorporates integral mechanical stops for overrange protection, with two fixed resistors, enabling shunt calibration on each axis. Units are supplied with integral cable.

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Digital Torquemeter

The MCRT® 79700V digital torquemeter from S. Himmelstein and Company (Hoffman Estates, IL) has two ranges with independent outputs. The meter measures torque even if the ratio of peak to average torque is high. Such conditions occur when starting, stopping, or reversing high-inertia loads, during torsional oscillations, and in single-cylinder engine/compressor drivelines. Three simultaneous analog outputs can be individually set to 5 or 10V at each range, full scale. Digital output of torque, and speed and power with option Z, is available over the resident RS-232 serial port. Included software interfaces with Windows-based PCs for data display and collection, as well as instrument setup.

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