DPM 750S-BL Lascar

DPM 750S-BL 3 Digit Backlit LCD Voltmeter Module The DPM 750S-BL features a 200mV d.c. measurement range with auto-zero and auto-polarity. Decimal points are user selectable. The meter features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND. A low drift bandgap reference circuit ensures accurate readings over a wide temperature range. LED backlighting ensures excellent readability under low light conditions. The module s low cost means it will suit high and low volume applications. This module is supplied with a plastic mounting bezel. A waterproof seal to IP67 / NEMA 4X is achievable, using the optional BEZ 700-IP bezel. FEATURES 12.7mm (0.5 ) Digit Height 200mV d.c. Full Scale Reading 3.0 to 7.5V or 6.0 to 15V d.c. Operation CF Auto-zero and Auto-polarity m A mV Programmable Decimal Points kW LED Backlighting (30mA 5V typ.) MHz Low Battery Warning Bandgap Reference TYPICAL APPLICATIONS ORDERING INFORMATION Precision Instrumentation Systems Stock Number Power Supply Monitoring Standard Meter DPM 750S-BL Test Boxes IP67 / NEMA 4X Bezel BEZ 700-IP Panel-Mount Indication Low Power Voltage Measurement ELECTRICAL SPECIFICATIONS Specification Min. Typ. Max. Unit Accuracy (overall error) * 0.1 % (1 count) Linearity 1 count Sample rate 2.5 samples/sec Operating temperature range 0 50 C Temperature stability 50 ppm/C Supply voltage V+ to GND configuration 3 5 7.5 V d.c. V+ to V- configuration 6 9 15 V d.c. Supply current V+ to GND configuration 500 m A V+ to V- configuration 350 m A Backlight supply voltage 4.75 5.0 ** V d.c. Backlight supply current 5V d.c. 30 50 *** mA Input leakage current (Vin = 0V) 1 10 pA * To ensure maximum accuracy, re-calibrate periodically. ** An external series resistor is required above 5V, see Applications. *** This specification linearly derates to 30mA 50C. SAFETY To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the modules pins must not exceed 60Vdc. The user must ensure that the incorporation of the panel meter into the users equipment conforms to the relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for Measuring, Control and Laboratory Use). LASCAR ELECTRONICS LTD. LASCAR ELECTRONICS INC. LASCAR ELECTRONICS (HK) LIMITED MODULE HOUSE FLAT C, 5/FL., LUCKY FTY. BLDG. 3750 West 26th Street WHITEPARISH Erie 63-65 HUNG TO ROAD WILTSHIRE SP5 2SJ KWUN TONG KOWLOON PA 16506 HONG KONG UK USA TEL: +44 (1794) 884567 TEL: +1 (814) 835 0621 TEL: +852 2797 3219 FAX: +44 (1794) 884616 FAX: +852 2343 6187 FAX: +1 (814) 838 8141 E-mail: sales lascar.co.uk E-mail: us-sales lascarelectronics.com E-mail: b4lascar samsongroup.com.hk PPaagege2o2 off44 Page1of4 www.lascarelectronics.com64.5 (2.54) DPM 750S-BL 3 Digit Backlit LCD Voltmeter Module DIMENSIONS All dimensions in mm (inches) 1.6 (0.06) 53.0 (2.17) Panel thickness: 1.0 - 3.0 2.8 (0.11) dia 46.7 (1.84) (0.04 - 0.12) 6.1 (0.24) 6.5 (0.26) 6.1 9.5 60 (2.36) (0.24) (0.37) 1.6 (0.06) Panel cut-out: 62.0 - 32.0 (2.44 - 1.26) PANEL FITTING Insulating Shake-proof Washer Washer 1 2 3 PIN CONFIGURATION (rear view) FUNCTIONAL BLOCK DIAGRAM V+ m Vref CAL LCOM COM Rb Ra La BL- CAL 1 10 6.3 (0.25) INHI + A/D 1 8 2.54 18.6 (0.73) INLO (0.1) V- GND DP321 PPageage2o2 off44 Page2of4 www.lascarelectronics.com 34.5 (1.36) 25.0 (0.98) V m V+ A GND F BL- C INHI INLO DP1 M k DP2 17.7 (0.7) Ohm DP3 Hz 30 (1.18) V- : COM ~