DPM3AS-BL Datasheet, PDF (1/4 Pages) List of Unclassifed Manufacturers – 3½ Digit Backlit LCD Voltmeter Module

DPM 3AS-BL
3½ Digit Backlit LCD Voltmeter Module
PRODUCT DESCRIPTION
The DPM 3AS-BL features a 200mV d.c. measurement range with auto-zero and auto-polarity. Decimal points are user
selectable. The DPM 3AS-BL 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 design
of the panel meter's housing allows the module to be easily snapped into a panel. The module's low cost means it will
suit high and low volume applications. The DPM 3AS-BL is intended to replace the DPM 3, DPM 3S, DPM 3-BL and
DPM 3S-BL in many applications, usually requiring only minor circuit modifications.
FEATURES
• 11mm (0.43") 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
TYPICAL APPLICATIONS
• Precision Instrumentation Systems
• Power Supply Monitoring
• Hand held instruments
• Panel-Mount Indication
• Low Power Voltage Measurement
ORDERING INFORMATION
Standard Meter
Stock Number
DPM 3AS-BL
ELECTRICAL SPECIFICATIONS
Specification
Min.
Typ.
Max.
Accuracy (overall error) *
0.1
Linearity
Sample rate
±1
2.5
Operating temperature range
Temperature stability
0
50
250
Meter supply voltage
V+ to GND configuration
3.0
5.0
V+ to V- configuration
6.0
9.0
7.5
15.0**
Meter supply current
V+ to GND configuration
350
V+ to V- configuration
175
Backlight supply voltage
Backlight supply current @ 5V d.c.
4.75
5.0
***
40
60
Input leakage current (Vin = 0V)
1
10
* 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.
Unit
% (±1 count)
count
samples/sec
°C
ppm/°C
V d.c.
V d.c.
µA
µA
V d.c.
mA
pA
Unless otherwise noted, specifications apply at T_A=25°C, V_supply=5Vd.c. (f_clock=48kHz) and are tested with the module configured for fully floating
input mode.
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).
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]
www.lascarelectronics.com
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]
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