The DPM 950 3½ Digit LCD Module is a low power, high precision digital multimeter with 200mV d.c. Full Scale Reading (F.S.R.), LED Backlight, Single Rail Version, Alarm Annunciator and other features.
The DPM 950 is a 3% digit LCD module designed for low‑current, portable equipment. It features an LED backlight, auto‑zero, auto‑polarity, and can be panel‑mounted using the supplied bezel and clips. The module offers both single‑rail and dual‑rail versions and includes an alarm annunciator.
The handbook details dimensions, connector pin functions, scaling resistor options, safety compliance with the Low Voltage Directive, and various operating modes. It also lists electrical specifications such as full‑scale reading, supply voltages, accuracy, and temperature range.
| Digit Height | 19 mm (0.75 in) |
|---|---|
| Interface | IDC |
| Full Scale Reading | 200 mV DC |
| LED Backlight | Included |
| Supply Voltage (nominal) | 5 V |
| Operating Temperature Range | 0 °C to 50 °C |
| Accuracy (overall error) | 0.05 % +1 count |
| Sample Rate | 3 samples/sec |
Input voltages to the module’s pins must not exceed 60 V DC.
Cut link ALM and connect it to XDP to display the alarm annunciator.
Fit two resistors (Ra and Rb) as scaling resistors to alter the full‑scale reading.
Both negative and positive power supplies are provided for the LED backlighting.