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| DMS-20PC-7-DCM -36 to -75Vdc, Self-Powered LED Display, DC Voltage Monitor FEATURES Great for -48Vdc telecom power monitoring Self-powered 2-wire operation -36 to -75V operating input range Ultra-low power consumption, 8mA (typ.) at -48V -200V input transient protection Reverse polarity protected to +100V 0.37"/9.4mm high, bright red, LED display Subminiature 1.38" x 0.88" x 1.0" package Super reliable, epoxy-encapsulated construction -25 to +60C operating temperature range Functional Specifications Input Voltage Range Current Consumption Reverse Polarity Protection Transient Protection Performance Sampling Rate Resolution Accuracy @ +25C Temperature Drift (-25 to +60C) Mechanical Dimensions Display Type Weight Case Material Environmental Operating Temperature Storage Temperature Humidity (Non-condensing) -36.0 to -75.0Vdc 13.0mA (max.) +100V (max.) -200V (1sec duration) 2.5 readings/second 0.1V 0.1V (typ.), 0.2V (max.) 0.2 counts/C (max.) 1.38" x 0.88" x 1.00" 3 digit, red LED, 0.37"/9.4mm 1 ounce (28 grams) Polycarbonate -25 to +60C -40 to +75C 0 to 95% DATEL's new DMS-20PC-7-DCM self-powered digital voltage monitor is designed for monitoring -48V intermediate bus voltages in modern telecom/datacom/computer equipment. Its compact size and low power consumption (8mA typical) make it the ideal replacement for older, hard-to-read, analog panel meters. Simply connect a -36 to -75Vdc input across the two rear terminals and the meter is fully operational! The DMS-20PC-7-DCM's subminiature package (1.38" x 0.88" x 1.0") houses a large, 0.37"/9.4mm, bright red LED display which can be easily read from 15 feet away. Builtin reverse polarity and transient protection assures simple, trouble-free installation. The DMS-20PC-7-DCM employs a high-resolution, 31/2 digit analog-to-digital converter and precision metal-film resistors to achieve outstanding performance over its entire operating temperature range of -25 to +60C. A rugged, epoxy-encapsulated, polycarbonate case (available only from DATEL!) provides excellent protection against moisture, shock and vibration. Typical panel mount installation Suggested wiring (User supplied) Ordering Information DMS-20PC-7-DCM DMS-20-CP DMS-BZL3 DMS-BZL4 -36.0 to -75.0V dc voltage monitor Panel cutout punch Panel mount bezel assembly Panel mount bezel with sealing gasket Brass screws (6-32 thread) and a panel-mount retaining clip are supplied with each meter Operation and accuracy at inputs above or below this range are not specified. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 MPM_DMS-20PC-7-DCM.B02 Page 1 of 2 DMS-20PC-7-DCM -36 to-75Vdc, Self-Powered LED Display, DC Voltage Monitor Dimensions in inches (millimeters) Tolerances: 2 PL Dec 0.02 (0.51) 3 PL Dec 0.010 (0.254) Recommended panel cutout dimensions: 1.336 (33.93)W x 0.838 (21.29)H Internal corner radii 0.032 (0.81) Max. 1.30 (33.0) 0.04 (1.016) 0.04 (1.016) 0.04 (1.016) #6-32 UNC THD 0.44 (11.2) 0.80 (20.3) 0.88 (22.4) 0.37 (9.4) 0.75 (19.1) 0.32 (8.1) 1.00 (25.4) #2-56 INSERT 0.156 (3.96) DEEP 0.19 (4.8) 1.07 (27.2) DMS-BZL3 Optional Bezel 1.28 (32.5) 0.10 (2.5) 1.63 (41.4) 1.83 (46.5) 0.10 (2.5) USA: Canada: UK: France: Germany: Japan: China: Singapore: Mansfield (MA), Tel: (508) 339-3000, email: sales@murata-ps.com Toronto, Tel: (866) 740-1232, email: toronto@murata-ps.com Milton Keynes, Tel: +44 (0)1908 615232, email: mk@murata-ps.com Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: france@murata-ps.com Munchen, Tel: +49 (0)89-544334-0, email: munich@murata-ps.com Tokyo, Tel: 3-3779-1031, email: sales_tokyo@murata-ps.com Osaka, Tel: 6-6354-2025, email: sales_osaka@murata-ps.com Shanghai, Tel: +86 215 027 3678, email: shanghai@murata-ps.com Guangzhou, Tel: +86 208 221 8066, email: guangzhou@murata-ps.com Parkway Centre, Tel: +65 6348 9096, email: singapore@murata-ps.com Technical enquiries email: sales@murata-ps.com, tel: +1 508 339 3000 Murata Power Solutions, Inc. 11 Cabot Boulevard, Mansfield, MA 02048-1151 U.S.A. Tel: (508) 339-3000 (800) 233-2765 Fax: (508) 339-6356 www.murata-ps.com email: sales@murata-ps.com ISO 9001 and 14001 REGISTERED 11/24/08 Murata Power Solutions, Inc. makes no representation that the use of its products in the circuits described herein, or the use of other technical information contained herein, will not infringe upon existing or future patent rights. The descriptions contained herein do not imply the granting of licenses to make, use, or sell equipment constructed in accordance therewith. Specifications are subject to change without notice. (c) 2008 Murata Power Solutions, Inc. www.murata-ps.com DMS-20PC-7-DCM 1.38 (35.1) MPM_DMS-20PC-7-DCM.B02 Page 2 of 2 + (R) - (R) + - |
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