LASCAR V 125 User Manual
V 125
3½ Digit LCD Voltmeter Module
PRODUCT DESCRIPTION
This low cost compact LCD voltmeter module is ideally suited for high volume applications. It features an exceptionally
large display ina miniaturepackage and includesauto-zero anduser-selectable decimal points. The module is suppliedwith
a panel mountingbezel.
FEATURES
• Low Cost
1
REAR VIEW
8
• 12.5
mm (0.5") Digit Height
• 200mV d.c. Full Scale Reading
• 1mA (typ) @ +9V d.c. Power Supply
•
Auto-zero and Auto-polarity
• User Selectable
•
Supplied with Mounting Bezel
Decimal Points
TYPICAL APPLICATIONS
• High Volume, Low Cost Systems
• Power Supply Monitoring
ORDERING INFORMATION
Stock Number
Standard Meter V 125
• Panel-Mount Indication
ELECTRICAL SPECIFICATIONS
Specification Min. Typ. Max. Unit
Accuracy (overall error) * 0.25 % (±3 counts)
Linearity 0-1000 reading ±3 counts
Sample rate 3 samples/sec
Operating temperature range 0 50 °C
Temperature stability 300 ppm/°C
Supply voltage 7.0 9 12 V d.c.
Supply current 1 2 mA
* To ensure maximum accuracy, re-calibrate periodically.
0-2000 reading counts
±5
SAFETY
To comply with the Low Voltage Directive(LVD 93/68/EEC), inputvoltagestothemodule’spinsmustnotexceed
60Vdc. The usermustensurethat the incorporation of thepanel meter into theuser’s equipmentconforms 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: +44 (1794) 884567
FAX: +44 (1794) 884616
E-mail: sales@lascar.co.uk
LASCAR ELECTRONICS INC.
PO BOX 50727
PALO ALTO
CA 94303-0727
USA
TEL: +1 (650) 838 9027
FAX: +1 (650) 833 5432
E-mail: lascarus@pacbell.net
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: +852 2797 3219
FAX: +852 2343 6187
E-mail: b4lascar@samsongroup.com.hk
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V 125
3½ Digit LCD Voltmeter Module
DIMENSIONS
Panel thickness: 1.0 - 3.0
24.4 (0.96)
50.0 (1.97)
PANEL FITTING
Panel
Meter
All dimensions in mm (inches)
(0.04 - 0.12)
dia 2.5 (0.1)
21.4 (0.84)
20.4 (0.80)
14.0 (0.55)
45.0 (1.77)
41.5 (1.63)
50.0 (1.97)
40.7 (1.60)
31.0 (1.22)
2.5(0.1) dia
Fixing Clip
5.3 (0.20)
1.6 (0.06)
1.27 (0.05)
Pin Pitch 2.5 (0.1)
Pin positions are symmetrical
about the vertical centre line
Bezel
1
2 4
FUNCTIONAL BLOCK DIAGRAM
V+
Vref
CAL
COM
INHI
INLO
+
_
A/D
XDP
Fastener
3
PIN CONFIGURATION
CAL
REAR VIEW
V+V-INHI
1
L1
INLO
XDP
DP1
DP2
DP3
(rear view)
8
V-
DP321
www.lascarelectronics.com
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