SP400

SP 400 3 Digit Backlit LCD Voltmeter Module PRODUCT DESCRIPTION The SP 400 features a 200mV d.c. measurement range with auto-zero and auto-polarity. Decimal points are user selectable. The SP 400 features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND. LED backlighting ensures excellent readability under low light conditions. The module is easily fitted into the panel, using the fixing clip provided. The module s low cost means it will suit high and low volume applications. The design of the panel meter s housing ensures splash proofing using the supplied seal. FEATURES 9.75mm (0.38 ) Digit Height 200mV d.c. Full Scale Reading 3.0 to 7.5V or 6.0 to 15.0V Operation Auto-zero and Auto-polarity Programmable Decimal Points LED Backlighting Low Battery Warning Splash Proof TYPICAL APPLICATIONS ORDERING INFORMATION Precision Instrumentation Systems Stock Number Power Supply Monitoring Standard Meter SP 400 Test Boxes 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 100 ppm/C Supply voltage V+ to GND configuration 3.0 5.0 7.5 V d.c. V+ to V- configuration 6.0 9.0 15.0** V d.c. Supply current V+ to GND configuration 350 A V+ to V- configuration 175 A Backlight supply voltage 4.75 5.0 *** V d.c. Backlight supply current 5V d.c. 40 80**** mA 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 may cause permanent damage to the meter. *** An external series resistor is required above 5V, see Applications. **** This specification linearly derates to 50mA 50C. Unless otherwise noted, specifications apply at T =25C, V =5Vd.c. (f =48kHz) and are tested with the module configured for single ended 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 (HK) LTD. LASCAR ELECTRONICS LTD. LASCAR ELECTRONICS INC. 8th FLOOR, CHINA AEROSPACE CENTRE, MODULE HOUSE, 4258 WEST 12th STREET, 143 HOI BUN ROAD, WHITEPARISH, ERIE, KWUN TONG, KOWLOON, WILTSHIRE SP5 2SJ, PA 16505, HONG KONG UK USA TEL: +852 2389 6502 TEL: +1 (814) 835 0621 TEL: +44 (1794) 884567 FAX: +852 2389 6535 FAX: +44 (1794) 884616 FAX: +1 (814) 838 8141 E- mail: saleshk lascar.com.hk E-mail: sales lascar.co.uk E-mail: us-sales lascarelectronics.com No: 695 - Page 1 of 4 www.lascarelectronics.com 35.1 (1.38) 34 (1.34) SP 400 3 Digit Backlit LCD Voltmeter Module DIMENSIONS a. 0.75 (0.03) All dimensions in mm (inches) b. 10.00 (0.39) c. 6.00 (0.24) ab c 2.54 (0.1) pitch 7.56 (0.3) 5.02 (0.2) 33.0 (1.30) Panel thickness: 1.0 - 3.0 (0.04 - 0.12) PANEL FITTING Panel Module Seal Fixing Clip 1 2 3 4 PIN CONFIGURATION (rear view) FUNCTIONAL BLOCK DIAGRAM V+ Vref CAL BL- LBAT LCOM CAL 19 INH + A/D 1 8 INL V- GND DP321 PPaagege2o2 off44 No: 695 - Page 2 of 4 www.lascarelectronics.com 22.4 (0.88) 21.3 (0.84) 20.5 (0.81) V+ GND BL- INH INL DP1 DP2 5.1 (0.2) DP3 V- 0.64 (0.03)