Manual

PRODUCT DESCRIPTION
The SP 400 features a 200mV d.c. measurement range with auto-zero and auto-polarity. Decimal points are user selectable.
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
The SP
400 features a negative rail generator which enables the meter to measure a signal referenced to its own power supply GND.
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
•
• 200mV d.c. Full Scale Reading
• 3.0 to 7.5V or 6.0 to 15.0V Operation
•
•
•
9.75mm (0.38") Digit Height
Programmable Decimal Points
LED Backlighting
• Low Battery Warning
• Splash Proof
Auto-zero and Auto-polarity
TYPICAL APPLICATIONS
• Precision Instrumentation Systems
• Power Supply Monitoring
• Test Boxes
• Panel-Mount Indication
• Low Power Voltage Measurement
ORDERING INFORMATION
Stock Number
Standard Meter SP 400
LASCAR ELECTRONICS LTD.
MODULE HOUSE
WHITEPARISH
WILTSHIRE SP5 2SJ
UK
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]
LASCAR ELECTRONICS INC.
3750 WEST 26th STREET
ERIE
PA 16506
USA
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]
LASCAR ELECTRONICS (HK) LIMITED
FLAT C, 5/FL., LUCKY FTY. BLDG.
63-65 HUNG TO ROAD
KWUN TONG KOWLOON
HONG KONG
TEL: [phone]
FAX: [phone]
E-mail: [e-mail]
SP 400 3½ Digit Backlit LCD Voltmeter Module
SAFETY
To comply with the Low Voltage Directive (LVD 93/68/EEC), input voltages to the module’s pins must not exceed
60Vdc. The user must ensure that the incorporation of the panel meter into the user’s equipment conforms to the
relevant sections of BS EN 61010 (Safety Requirements for Electrical Equipment for Measuring, Control and
Laboratory Use).
ELECTRICAL SPECIFICATIONS
Page1of4
www.lascarelectronics.com
* 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 @ 50°C.
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.
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
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
µ
µ
Unless otherwise noted, specifications apply at T =25°C, V =5Vd.c. (f =48kHz) and are tested with the module configured for single ended
input mode.
A supply clock
PO Box 770, Londonderry, NH 03053 1-800-821-0023
www.martelcorp.com