Lascar Electronics, Inc. Meters DPM 950S

The DPM 950S is a 3¬O digit LCD voltmeter designed for low power consumption, making it suitable for portable applications. It features a 19mm digit height display with a long-life LED backlight for visibility in low light conditions. The device can be panel mounted or secured in place using its robust carrier. It has a full-scale reading capability of 200mV d.c. and includes auto-zero and auto-polarity functions. The DPM 950S allows for scaling adjustments through the addition of external resistors, which requires recalibration. It operates within a temperature range of 0°C to 50°C and has an overall accuracy of ±0.1% (±1 count). The supply voltage range is between 3.5V and 6.5V, with a supply current of up to 500µA (not including backlight). The device also includes an alarm annunciator and supports various operating modes through on-board links. Engineers considering the DPM 950S should note its compliance with safety standards, ensuring input voltages do not exceed 60V d.c. for safe operation.