The EM32-1B-LED round‑hole mounting LED voltmeter is a 3‑digit, 8 mm digit height instrument designed for panel mounting in process control and automotive applications. It features auto‑zero, auto‑polarity, selectable decimal points, and IP67/NEMA 4X protection.
The meter is powered from a 4.75‑5.25 V supply, draws 50 mA typical current, and provides a 200 mV full‑scale reading. Connections are made via screw terminals with jumper links to select measurement modes, and the module requires a 32.5 mm diameter cut‑out.
| Accuracy | 0.1 % (+1 count) |
|---|---|
| Linearity | 1 count |
| Sample rate | 2.5 samples/sec |
| Operating temperature range | 0 °C to 50 °C |
| Temperature stability | 150 ppm/°C |
| Warm‑up time | 10 minutes |
| Supply voltage | 4.75 V to 5.25 V |
| Supply current | 50 mA typical |
| Input leakage current | 1 pA to 10 pA |
The meter provides a 200 mV d.c. full‑scale reading.
A 32.5 mm (1.28 in) diameter cut‑out is required.
The module is IP67 / NEMA 4X protected and complies with the Low Voltage Directive and BS EN 61010 safety standards.
It operates from a 4.75 V to 5.25 V supply and typically draws 50 mA.