Datasheet > DPM3AS-BL

DPM3AS-BL

更新时间： 2024-11-21 06:54:23

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描述
3½ Digit Backlit LCD Voltmeter Module

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中文翻译

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DPM3AS-BL 数据手册

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

ORDERING INFORMATION

• Power Supply Monitoring

• Hand held instruments

Stock Number

DPM 3AS-BL

Standard Meter

• Panel-Mount Indication

• Low Power Voltage Measurement

ELECTRICAL SPECIFICATIONS

Specification

Accuracy (overall error)*

Linearity

Sample rate

Operating temperature range

Temperature stability

Meter supply voltage

Meter supply current

Backlight supply voltage

Min.

Typ.

0.1

Max.

±1

Unit

% (±1 count)

count

samples/sec

°C

ppm/°C

V d.c.

µA

V d.c.

2.5

250

5.0

9.0

350

175

5.0

V+ to GND configuration

V+ to V- configuration

V+ to GND configuration

V+ to V- configuration

3.0

6.0

7.5

15.0**

4.75

***

Backlight supply current @ 5V d.c.

Input leakage current (Vin = 0V)

* 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.

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

LaboratoryUse).

LASCAR ELECTRONICS INC.

3750 WEST 26th STREET

ERIE

LASCAR ELECTRONICS LTD.

MODULE HOUSE

WHITEPARISH

LASCAR ELECTRONICS (HK) LIMITED

FLAT C, 5/FL., LUCKY FTY. BLDG.

63-65 HUNG TO ROAD

PA 16506

USA

WILTSHIRE SP5 2SJ

KWUN TONG

HONG KONG

KOWLOON

TEL: +1 (814) 835 0621

FAX: +1 (814) 838 8141

E-mail: us-sales@lascarelectronics.com

TEL: +44 (1794) 884567

FAX: +44 (1794) 884616

E-mail: sales@lascar.co.uk

TEL: +852 2797 3219

FAX: +852 2343 6187

E-mail: b4lascar@samsongroup.com.hk

Page 22 ooff 4

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