DMS-20PC数据手册工业自动化与控制的面板仪表规格书PDF

描述 Description

DMS-20PC Series, 3½ Digit, LED Display, Digital Panel Voltmeters combine a precision A/D converter; a factory-trimmed, highly stable, voltage reference; and a large (0.37\"/9.4mm), easy-to-read LED display in a single package that is only slightly larger than the display itself. Displays are offered in either red, orange, amber, yellow or green colors. High-intensity and low-power (35mW total) red LEDs are also optional.
These low-cost meters are fully self-contained and fully functional. Their subminiature (1.38\" x 0.88\" x 0.48\"), epoxy-encapsulated cases incorporate built-in color filters and bezels; are moisture and vibration proof; and function well in the harshest environments. Their 12-pin, dual-in-line configuration offers component-like, plug-in convenience and maximum versatility. Operating temperature range is 0 to +60°C.
The meters come with one of four, differential, input voltage ranges: ±200mV, ±2V ±20V or ±200V. Input impedance is a minimum 800kΩ. CMRR is typically 86dB (dc to 60Hz), and CMV is ±2V. Input overvoltage protection (on the non-inverting input) is ±250V. Devices are fully calibrated at the factory to an accuracy of ±1 count (±0.05% of full scale range) and never require calibration or adjustment.
A DISPLAY ENABLE function permits the display to be disabled for \"power down\" operation. All models have a DISPLAY TEST function. Red LED models offer an optional DISPLAY HOLD function.
Small size, low cost and adjustment-free reliability make the DMS-20PC Series the best choice for all your 3½ digit, LED, DPM applications.

特性 Features

• Lowest-cost LED meters
• Subminiature size: 1.38\" x 0.88\" x 0.48\" 35mm x 22mm x 12mm
• Large (0.37\"/9.4mm) LED display
• Choice of 5 LED colors
• High-intensity or low-power (7mA) red LEDs optional
• Epoxy-encapsulated, 12-pin DIP package with built-in color filter and bezel
• 4 differential input voltage ranges
• Factory calibrated, ±1 count accuracy
• Single +5V power supply
• User-selectable decimal point placement
• DISPLAY ENABLE function for \"power-down\" mode
• DISPLAY TEST and HOLD (optional) functions
• 0 to +60°C temperature range