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DMS-30PC-1-RH Datasheet(PDF) 1 Page - List of Unclassifed Manufacturers |
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DMS-30PC-1-RH Datasheet(HTML) 1 Page - List of Unclassifed Manufacturers |
1 / 6 page DATEL, Inc., Mansfield, MA 02048 (USA) • Tel: (508)339-3000, (800)233-2765 Fax: (508)339-6356 • Email:sales@datel.com • Internet: www.datel.com Features Figure 1. DMS-30PC Series Simplified Schematic The DMS-30PC Series is a broad line of self-contained, fully operational, 3½ digit voltmeters with large, easy-to-read LED displays. The 0.56"(14.2mm) high LED's are available in a wide variety of colors including red, orange, amber, yellow, green, aqua and blue. A high-intensity version of the red display is optional as are low-power versions of the red, orange and green displays. The small size (2.17" x 0.92" x 0.56") of DMS-30PC meters is achieved by integrating their display, display drivers, reference circuit, and A/D converter into in a single, epoxy-encapsulated assembly. The device's 12-pin, component-like, DIP package is both vibration and moisture proof. Each package incorporates a built-in color filter and bezel and is easily mounted in either panels or pc cards. These meters are available in four differential input voltage ranges (±200mV, ±2V, ±20V and ±200V). Input impedance is 1,000 megohms for the ±200mV and ±2V inputs and 1 megohm for the ±20V and ±200V inputs. CMRR for all devices is 86dB, and inputs are overvoltage protected to ±250V. Each meter incorporates an extremely stable, double-regulated reference and is fully calibrated prior to potting. We guarantee outstanding initial accuracy (±1 count) and excellent stability (±0.15 counts/°C). All models operate from a single +5V supply, and the low-power models draw as little as 10mA (50mW total power). A DISPLAY TEST function is standard on each device. For popular applications (4-to-20mA, rms-to-dc conversion, ac line power, J and K thermocouples, etc.), the DMS-30PC Series includes a complete line of optional "plug-on" application boards that conveniently convert your meter into an applica- tion-specific instrument. ••••• Large (0.56"/14.2mm) LED display ••••• 7 LED colors ••••• Low-power LED’s optional ••••• Epoxy-encapsulated, 12-pin DIP with built-in color filter and bezel ••••• Miniature size: 2.17" x 0.92" x 0.56" 55mm x 23mm x 14mm ••••• Panel or pc-board mountable ••••• 4 differential input voltage ranges ••••• Auto-calibration, ±1 count accuracy ••••• User-selectable decimal point placement ••••• Single +5V supply (60mW for low-power models) ••••• 0 to +60°C temperature range ••••• Numerous "plug-on" application boards ••••• Low cost Actual Size 3½ Digit, LED Display Low-Power, Miniature Digital Panel Voltmeters DMS-30PC Series +1.23V REFERENCE OUT (+) INPUT HI (–) INPUT LO ANALOG COMMON REFERENCE OUT REFERENCE IN +5V SUPPLY R1 DP 1 DP 2 DP 3 6 5 4 9 11 12 10 8 7 1 3 DC/DC CONVERTER 2 DISPLAY TEST 5V RETURN +5V –5V +5V 1.23V REF. R2 ≈+2.0V DATA 909k R2 is not used on ±200mV (-0) models or ±2V (-1) models. R2 = 100k on ±20V (-2) models and 9.1k on ±200V (-3) models. V+ V– A/D CONVERTER 0 Vdc 0.01µF 1.82k 1 1 ®® |
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