DPM 750S-EB-W Lascar

DPM 750S-EB-W 3 Digit Backlit LCD Voltmeter Module The DPM 750S-EB-W features an enhanced black LCD and 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. Enhanced contrast negative mode LCD with white LED backlighting ensures excellent readability under low light conditions. The module s integral window format means it will suit both 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 5V d.c. Operation Auto-zero and Auto-polarity Programmable Decimal Points Enhanced black LCD with LED Backlighting Low Battery Warning Bandgap Reference TYPICAL APPLICATIONS ORDERING INFORMATION Precision Instrumentation Systems Stock Number Power Supply Monitoring Standard Meter DPM 750S-EB-W 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 4.75 5 7.5 ** V d.c. Supply current 5V d.c. Display on 40 80 *** mA Display disabled 350 A Input leakage current (Vin = 0V) 1 10 pA * To ensure maximum accuracy, re-calibrate periodically. ** Operation of the meter beyond the maximum supply voltage rating can cause permanent damage to the meter. *** An external series resistor is required above 5V, see Applications. This specification linearly derates to 30mA 50C. Unless otherwise noted, specifications apply at T =25C, V =5Vd.c. (f =40kHz) and are tested with the module configured for floating input mode. 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) LTD. MODULE HOUSE 4258 West 12th Street 8th FLOOR, CHINA AEROSPACE CENTRE, WHITEPARISH Erie 143 HOI BUN ROAD, WILTSHIRE SP5 2SJ PA 16505 KWUN TONG, KOWLOON, UK USA HONG KONG TEL: +44 (1794) 884567 TEL: +1 (814) 835 0621 TEL: +852 2389 6502 FAX: +44 (1794) 884616 FAX: +1 (814) 838 8141 FAX: +852 2389 6535 E-mail: sales lascar.co.uk E-mail: us-sales lascarelectronics.com E- mail: saleshk lascar.com.hk PPaagege2o2 off44 No.: 695 - Page 1 of 4 www.lascarelectronics.com 64.5 (2.54) DPM 750S-EB-W 3 Digit Backlit LCD Voltmeter Module DIMENSIONS All dimensions in mm (inches) 1.6 (0.06) 55.0 (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 x 32.0 (2.44 x 1.26) PANEL FITTING Insulating Shake-proof Washer Washer 1 2 3 PIN CONFIGURATION (rear view) FUNCTIONAL BLOCK DIAGRAM V+ Vref CAL LCOM COM Rb La Ra 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 Specifications liable to change without prior warning DPM 750S-EB-W Issue 2 01/2012 S.L. PPageage2o2 off44 No.: 695 - Page 2 of 4 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 (0.70) Ohm DP3 Hz V- 30 (1.18) : COM ~ 19.0 (0.75)