The DP-350 Series is an ultra-compact, highly reliable LED panel meter. This meter is ideal for applications requiring bright easy-to-read digits in a small package. The flexible window-mount packaging with optional bezel enables embedding within OEM equipment or traditional panel mounting. The simplicity of function, overvoltage protection, and low power consumption all contribute to the high reliability of this device.
Three input voltage ranges are offered: ±200mV, ±2VDC and ±20VDC. A 4 to 20mA current input adapter (DP-370) is also offered. Automatic polarity, overrange indication adjustable decimal point, and display HOLD are standard features. The DP-350 Series employs a dual slope integrating A/D converter, and operates from an internal 100mV reference via a precision DC-to-DC converter. Typical accuracy is ±0.1%.
Features
• Large (0.56²) 3 1/2-digit LED display
• Choice of red or green LED
• Low power consumption (5VDC, 200mA)
• Differential input, 3 voltage ranges
• 0.1% typical accuracy
• User-selectable decimal point
• Hold-display function
• Auto zero
• Quantity discounts
1. The connection shown utilizes differential inputs. For single-ended operation, INPUT(-) is strapped to GND. If the signal is isolated from the power source, connect INPUT(-) to GND either directly or through a 10K resistor network to reduce common mode errors.
2. Display holds reading when HOLD is high (+5V). Readings are updated when HOLD is low or floating.
3. The decimal point is user selectable by connecting the decimal point pins (4, 5, or 6) to DP COM (pin 3).
4. Full-scale input span is adjusted prior to shipment. Further calibration is possible by adjusting the trimpot mounted on the back of the DPM.
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