This document describes the dimensions, features, and characteristics of the DPM 125 3½ Digit LCD Module. It features selectable logic, selectable decimal points, auto-zero, and auto-polarity. The document also provides the resistor values required to alter the full scale reading of the meter and instructions for panel fitting. This compact LCD DPM is ideally suited for low or high volume applications.
The DPM 125 is a compact 3‑digit LCD module with a large display, designed for low‑ or high‑volume applications. It can be panel‑mounted using the supplied snap‑in bezel or plugged directly into a SIL socket. The low‑profile bezel includes a flat reverse‑printed window for a durable appearance.
The manual details electrical characteristics such as a 200 mV full‑scale reading, 7.5‑14 V supply range, and 150 µA supply current. Pin functions, scaling options, safety requirements, and various operating modes are described, along with mounting procedures and dimension drawings.
| Digit Height | 12.5 mm (0.5 in) |
|---|---|
| Full Scale Reading | 200 mV d.c. |
| Supply Voltage | 7.5 – 14 V |
| Supply Current | 150 µA |
| Input Leakage Current | 10 pA |
| Accuracy | 0.1 % + 1 count |
| Temperature Stability | 100 ppm/°C |
| Sample Rate | 3 samples/sec |
| Operating Temperature Range | 0 – 50 °C |
| Viewing Area | 45 × 22.2 mm (1.77 × 0.87 in) |
Fit the bezel to the front of the panel, then locate the meter into the bezel from behind, and finally fit the window into the front of the bezel.
The full‑scale reading is 200 mV d.c.
The module operates from 7.5 V up to 14 V.
Yes, the decimal points are logic‑selectable.