The Omron K3MA-F-A2 100-240VAC is a panel-mount tachometer from the K3MA-F series, designed to measure and display rotational speed or frequency. It accepts no-voltage and voltage input signals, with a maximum count rate of 5kHz, making it suitable for monitoring pulse outputs from proximity sensors, encoders, or magnetic pickups on rotating machinery. The dual-color LCD backlit display shows up to 5 characters per row with 14.20mm character height, readable at a distance. The display provides clear indication of the measured value and can be configured for up-counting operation. Two relay outputs are available for alarm or control actions when the measured rate crosses a set threshold. The screw-terminal connection simplifies wiring in a control panel environment.
The unit is panel-mounted into a rectangular cutout of 92.00mm x 45.00mm. The IP66-rated front panel is dust-tight and protected against water jets, so it can be installed on machine enclosures in washdown areas or dusty industrial environments without a separate enclosure.