Key facts
- Brand
- Lascar
- Model
- DPM 500
- Category
- Other Electronics
- Industry
- Electronics
- Documents
- 3
- Languages
- EN
- Last added
- 2012-05-03
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Lascar DPM 500S 3½ Digit LCD Module User Manual
The DPM 500S is a compact 3½‑digit LCD measurement module offered in a 40‑pin DIL format. It features programmable decimal points, auto‑zero, auto‑polarity and optional scaling resistors to adjust full‑scale range.
This manual covers physical dimensions, connector pinout, scaling resistor calculations, safety compliance with the Low Voltage Directive, panel fitting instructions, pin functions, operating modes and detailed electrical specifications.
Lascar DPM 500 specifications
| Digit Height | 12.5 mm (0.5 in) |
|---|---|
| Accuracy (overall error) | 0.05 % typical |
| Linearity | ±1 count |
| Sample Rate | 3 samples/sec |
| Operating Temperature Range | 0 °C to 50 °C |
| Temperature Stability | 100 ppm/°C |
| Supply Voltage | 3.5 V – 6.5 V |
| Supply Current | 250 µA |
| Input Leakage Current | 1 – 10 pA (Vin = 0 V) |
| Full‑Scale Reading (Scaling Resistors) | 2 V with Ra = 910 kΩ, Rb = 100 kΩ |
All Lascar DPM 500 documents by type
Day-to-day operation, settings and troubleshooting. Start here if the product is already set up.
Questions answered in these manuals
What supply voltage range does the DPM 500S require?
The module operates from 3.5 V up to 6.5 V supply voltage.
How can the full‑scale reading be changed?
By fitting two external scaling resistors Ra and Rb as shown in the scaling table.
What is the maximum input voltage allowed for the DPM 500 module?
The input voltages to the module’s pins must not exceed 60 V dc.
How do I enable the backlight on the DPM 500S‑BL version?
Apply 5 V dc to the backlight tab on the side of the meter; the typical current is 30 mA.
What is the maximum input voltage allowed for the module pins?
Input voltages to the module’s pins must not exceed 60 VDC to comply with the Low Voltage Directive.
From: Lascar DPM 500-BL 3½ Digit Backlit LCD Module User Manual