200-15,000 rpm Selectable Speed Anemometer Drive, 115V / 60Hz
Model 18802 Anemometer Drive provides a convenient and accurate way to rotate an anemometer shaft at a known rate. The motor rotates clockwise or counter-clockwise at a selected rate between 200 and 15,000 RPM. The LCD display is referenced to an accurate quartz timebase. For portable operation, the unit runs on internal batteries.
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The Young Selectable Speed Anemometer Drive provides a convenient and accurate way to rotate an anemometer shaft at a known rate. The device consists of a control/display unit and a variable speed motor with integral high-resolution optical encoder.
Model 18802 has an operating range of 200 to 15,000 RPM for use with propeller type anemometers.The control unit is the same in each case. High and low speed motors are available separately, permitting operation in both speed ranges with a single display unit.
The control unit automatically senses motor assembly type (high or low speed) and adjusts display and controlling circuits automatically. Operating parameters for each motor type include MAX & MIN RPM, STEP SIZE, and 9 PRESET speeds. Settings for these parameters are saved when power is off.
A front panel CW-CCW switch selects rotation direction (as seen facing anemometer). Motor speed is selected using the UP-DOWN keys. The display shows the target and actual RPM. Motor rotation and measurement are referenced to a crystal oscillator for stability and accuracy. Current limiting circuits protect the motor from damage due to overload or stalling.
The 18802 is powered from an AC wall adapter (included). For completely portable operation, two internal 9-V batteries power the unit. Use lithium type for longest life. When batteries are low, the controller stops the motor and alerts the user on the display.
This product has been tested and shown to comply with European CE requirements for the EMC Directive.