DMS-20LCD-2/3 Series Self-Powered, +50V and +150V LCD Display 2-Wire DC Voltage Monitors FEATURES N Self-powered, 2-wire operation N +18.0 to +90.0Vdc or +50.0 to +150.0Vdc ranges N Ideal for 42V automotive systems and 120V chargers N Reverse polarity protected; 0.1V resolution N Built-in "VDC" annunciator N Large (0.37"/9.4mm) LCD displays N Subminiature 1.38" x 0.88" x 0.66" packages N Rugged, ABS package Functional Specifications Input Voltage Range: ~ DMS-20LCD-2-DCM DMS-20LCD-3-DCM Max. Current Consumption: DMS-20LCD-2-DCM DMS-20LCD-3-DCM +18.0 to +90.0Vdc +50.0 to +150.0Vdc 2mA @+50V, 3mA @ +90V 1.5mA @ +100V, 2mA @ +150V Performance Sampling Rate 2.5 readings/second Accuracy @ +25°C: DMS-20LCD-2-DCM ±0.1V (typ.), ±0.3V (max.) DMS-20LCD-3-DCM ±0.2V (typ.), ±0.4V (max.) Temperature Drift (0 to +60°C): DMS-20LCD-2-DCM ±0.3 counts/°C (max.) DMS-20LCD-3-DCM ±0.4 counts/°C (max.) Mechanical Display Type: DMS-20LCD-2-DCM DMS-20LCD-3-DCM Weight Case Material Environmental Operating Temperature Storage Temperature Humidity (Non-condensing) DATEL’s DMS-20LCD-2/3-DCM, self-powered, +90V and +150V voltage monitors set new standards for quality, performance, size and cost. Simply apply dc power to the two rear terminals and the unit is fully operational---no additional components or connections are required! Their large, 0.37”/9.4mm, LCD displays feature built-in “VDC” annunciators and can be easily read from 10 feet. Two models are available: one for +42Vdc nominal operation (+18.0 to +90.0V range, ‘-2-DCM’), the other for +120Vdc nominal operation (+50.0 to +150.0V range, ‘-3-DCM’). Reverse polarity protection and 0.1V resolution are standard on both models. Like their +12V (‘-0-DCM’) and +24V (‘-1-DCM’) counterparts, DMS-20LCD-2/3-DCM meters utilize a precision analog-to-digital converter and ultra-stable passive components to achieve excellent performance over the wide operating temperature range of 0 to +60°C. A rugged, ABS plastic package provides excellent protection against shock and vibration. DMS-20LCD-DCM’s are the most accurate, LCD-display, dc-voltage monitors available at any price. Typical panel mount installation and suggested wiring (user supplied). Ordering Information 3 digit LCD, 0.37"/9.4mm high 3½ digit LCD, 0.37"/9.4mm high 0.5 ounce (14 grams) ABS DMS-20LCD-2-DCM DMS-20LCD-3-DCM DMS-20-CP DMS-BZL3 DMS-BZL4 +18.00 to 90.0V dc voltage monitor +50.0 to 150.0V dc voltage monitor Panel cutout punch Panel mount bezel Panel mount bezel with sealing gasket Brass screws (6-32 thread) and a panel-mount retaining clip are supplied with each meter 0 to +60°C – 20 to +75°C 0 to 85% ~ Operation and accuracy at voltages above or below these ranges are not specified. Meters are not sealed; Do not expose to moisture or other contaminants. For full details go to www.murata-ps.com/rohs www.murata-ps.com Technical enquiries email: [email protected], tel: +1 508 339 3000 MPM_DMS-20LCD-23-DCM_B02 Page 1 of 2 DMS-20LCD-2/3 Series Self-Powered, +50V and +150V LCD Display 2-Wire DC Voltage Monitors 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 × 0.838 (21.29)H Internal corner radii 0.032 (0.81) Max. 0.025 (0.64) 1.30 (33.0) 0.04 (1.016) 0.04 (1.016) 0.04 (1.016) + – 0.38 (9.7) DATEL #6-32 UNC THD 1.38 (35.1) 0.880 (22.4) 0.800 (20.3) DC 0.37 (9.4) 0.25 DIA. 0.43 (10.9) 0.27 (6.9) 0.75 (19.1) 0.66 (16.8) 0.19 (4.8) #2-56 INSERT 0.156 (3.96 DEEP) 1.07 (27.2) 0.10 (2.5) DMS-BZL3 OPTIONAL BEZEL 1.28 (32.5) 0.10 (2.5) 1.63 (41.4) 1.83 (46.5) USA: 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: [email protected] 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. © 2008 Murata Power Solutions, Inc. www.murata-ps.com Mansfield (MA), Tel: (508) 339-3000, email: [email protected] Canada: Toronto, Tel: (866) 740-1232, email: [email protected] UK: Milton Keynes, Tel: +44 (0)1908 615232, email: [email protected] France: Montigny Le Bretonneux, Tel: +33 (0)1 34 60 01 01, email: [email protected] Germany: München, Tel: +49 (0)89-544334-0, email: [email protected] Japan: Tokyo, Tel: 3-3779-1031, email: [email protected] Osaka, Tel: 6-6354-2025, email: [email protected] China: Shanghai, Tel: +86 215 027 3678, email: [email protected] Guangzhou, Tel: +86 208 221 8066, email: [email protected] Singapore: Parkway Centre, Tel: +65 6348 9096, email: [email protected] Technical enquiries email: [email protected], tel: +1 508 339 3000 MPM_DMS-20LCD-23-DCM_B02 Page 2 of 2