The Omron K3MA-J 100-240VAC is a panel-mount process meter from the K3MA-J series, accepting either a 0-20 mA current loop or a ±10 VDC voltage signal as its measuring input. It displays the measured value on a 5-digit LCD with dual-color characters and a backlight, making it readable in dim panel conditions. The display characters are 0.560" (14.20 mm) high, which is large enough to read from a few feet away across a control cabinet.
This meter is designed for panel mounting into a rectangular cutout measuring 92.00 mm x 45.00 mm, a common size for DIN 96 x 48 mm panel instruments. Termination is via screw terminals on the rear, so no special crimp tooling is needed for field wiring.
Power and lifecycle
The meter runs on a universal AC supply of 100 to 240 VAC, covering standard line voltages in most industrial plants without needing a separate power module. It is rated for an operating temperature range of -10°C to 55°C, which covers typical indoor panel environments but not unheated outdoor enclosures in freezing climates.