MPM_DMS_30PC.F05.indd JParks

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Specifications	MPM_DMS_30PC.F05.indd JParks
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Ḥ +1.23V REFERENCE OUT (+) INPUT HI (–) INPUT LO ANALOG COMMON REFERENCE OUT REFERENCE IN +5V SUPPLY R1 DP 1 DP 2

Specifications	MPM_DMS_30PC.F05.indd JParks
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Content	Ḥ +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 49 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 CONVERTER0 Vdc 0.01µF 1.82k » (1) (1) Figure 1. DMS-30PC Series simpliﬁ ed schematic DMS-30PC Series 3½ Digit, LED Display Low-Power, Miniature Digital Panel Voltmeters MPM_DMS_30PC.F05 Page 1 of 6 For full details go to www.murata-ps.com/rohs www.murata-ps.com/dpm www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 The DMS-30PC Series is a broad line of self-contained, fully operational, 3½ digit volt- meters 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, blue-green, and super-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 ﬁ lter 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 ther- mocouples, etc.), the DMS-30PC Series includes a complete line of optional plug-on appli- cation boards that conveniently convert your meter into an application-speciﬁ c instrument. FEATURES ■ Large (0.56 /14.2mm) LED display ■ 8 LED colors ■ Low-power LED’s optional ■ Epoxy-encapsulated, 12-pin DIP with built-in color ﬁ lter 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 SIMPLIFIED SCHEMATIC DIAGRAM
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Following Datasheets	30pc_420 (4 pages) 30x (1 pages) 31-1_3 (1 pages) 31-2 (1 pages) 31_4 (2 pages) 310701 (1 pages) 310801 (1 pages) 311201 (1 pages) 311501 (1 pages) 311601 (1 pages)
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