DPM 100-BL 3½ Digit Backlit LCD Module is the backlit version of DPM 100-BL, it features 3½ digit LED backlit digital display, selectable decimal points, auto-zero and auto-polarity.
The DPM 100-BL is a low‑cost, low‑power 3½‑digit backlit LCD module designed for high‑volume applications. It features a 12.5 mm digit height, selectable decimal points, auto‑zero, auto‑polarity, and a 200 mV full‑scale reading with LED backlight. The module includes a flat reverse‑printed window and snap‑in bezel for easy integration.
This handbook covers the module's electrical specifications, pin assignments, scaling resistor options, safety compliance (LVD 93/68/EEC, BS EN 61010), dimensions, and various operating modes such as hold, test, and annunciator selection. Wiring instructions, backlight powering, and calibration notes are also provided.
| Digit Height | 12.5 mm (0.5 in) |
|---|---|
| Full Scale Reading | 200 mV DC |
| Supply Voltage | 7.5 – 14 V DC |
| Supply Current (incl. backlight) | 30 mA |
| Accuracy | 0.05 % +1 count |
| Operating Temperature Range | 0 – 50 °C |
| Input Leakage Current | 1 – 10 pA |
| Temperature Stability | 100 ppm/°C |
| Sample Rate | 3 samples/sec |
The module operates from a supply voltage of 7.5 V to 14 V DC.
Apply 5 V DC to the backlight tab; the typical current is 30 mA, and higher voltages require a series resistor.
The module must comply with the Low Voltage Directive (LVD 93/68/EEC) and input voltages to the pins must not exceed 60 V DC.