The DPM 1AS-BL is a 200mV dc measurement range of digital panel meter produced by Lascar Electronics. It features auto-zero and auto-polarity. Decimal points are user selectable. LED backlighting ensures excellent readability under low light conditions.
The DPM 1AS-BL is a 3½‑digit backlit LCD voltmeter module with a 200 mV DC full‑scale range, auto‑zero, auto‑polarity and programmable decimal points. It features a negative rail generator for measuring signals referenced to its own supply ground and LED backlighting for low‑light readability. The module is designed for easy panel snap‑in and low‑cost integration in both high‑ and low‑volume applications.
This handbook covers product description, key features, typical applications, electrical specifications, safety guidelines, mechanical dimensions, pin functions, scaling options, and circuit diagrams. It also explains wiring configurations, solder link settings, and calibration procedures needed for accurate voltage and current measurements.
| Full Scale Reading | 200 mV DC |
|---|---|
| Accuracy (overall error) | 0.7 % (+/-1 count) |
| Sample rate | 2.5 samples/sec |
| Operating temperature range | 0 – 50 °C |
| Meter supply voltage V+ to GND | 3.0 V, 5.0 V, 7.5 V |
| Meter supply voltage V+ to V- | 6.0 V, 9.0 V, 15.0 V |
| Backlight supply current @5 V | 15 – 30 mA |
The module provides a 200 mV DC full‑scale reading.