The K3MA-J process meter is a meter with a highly visible LCD display and 2-color (red and green) LEDs. It features multi-range DC voltage/current input, front-panel key operation, average processing function, scaling, front-panel forced-zero, zero-limit functions, easy confirmation of max/min display, short 80-mm depth, finger protective cover, water- and dust-proof front panel, and recognition to U.S. and Canadian requirements under the Component Recognition Program of UL with CE marking.
This manual describes the K3MA-J Process Meter, a highly visible LCD/LED display device for multi‑range DC voltage and current measurement. It covers the product’s physical features, ordering options, and model variants (K3MA-J and K3MA-J‑A2).\n\nThe document includes detailed specifications, wiring diagrams, operation instructions, convenient functions such as scaling and teaching, safety precautions, mounting guidelines, noise‑prevention measures, and troubleshooting steps to help users install, configure, and maintain the meter safely and reliably.
| Supply voltage | 100 to 240 VAC (or 24 VAC/VDC for 24‑V version) |
|---|---|
| Power consumption (max load) | 6 VA max |
| Input measuring range (DC voltage) | 1.000 to 5.000 V |
| Relay contact output rating | 5 A at 250 VAC, 5 A at 30 VDC |
| Weight | Approx. 200 g |
| Operating temperature range | -10°C to 55°C |
| Enclosure rating (front panel) | NEMA4X (IP66 equivalent) |
The K3MA-J can be powered from 100 to 240 VAC, or from 24 VAC/VDC for the 24‑V version.
It consumes up to 6 VA when operating at maximum load.
The K3MA-J‑A2 version provides two SPST‑NO relay contacts.
The front panel is rated NEMA4X, equivalent to IP66 protection.