SP300;中文规格书,Datasheet资料

PRODUCT DESCRIPTION

FEATURES

TYPICAL APPLICATIONS

?Precision Instrumentation Systems ?Power Supply Monitoring ?Test Boxes

?Panel-Mount Indication

ORDERING INFORMATION

Stock Number Standard Meter

SP 300

LASCAR ELECTRONICS LTD.MODULE HOUSE WHITEPARISH

WILTSHIRE SP52SJ UK

TEL:+44(1794)884567FAX:+44(1794)884616E-mail:sales@https://www.sodocs.net/doc/0c236128.html,

LASCAR ELECTRONICS INC.PO BOX 50727PALO ALTO CA 94303-0727USA

TEL:+1(650)8389027FAX:+1(650)8335432E-mail:lascarus@https://www.sodocs.net/doc/0c236128.html,

LASCAR ELECTRONICS (HK)LIMITED FLAT C,5/FL.,LUCKY FTY.BLDG.63-65HUNG TO ROAD KWUN TONG KOWLOON HONG KONG

TEL:+852********FAX:+852********

SP 300

3?Digit LED Voltmeter Module

SAFETY

T o comply with the Low V oltage 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

??200mV d.c.Full Scale Reading ?50mA @+5V d.c.Power Supply ???Bright Red 9.4mm (0.37")Digit Height Programmable Decimal Points LED Display ?Display Blanking Facility ?Simplified Connection ?Splash Proof

Auto-zero and Auto-polarity The SP 300features a 200mV d.c.measurement range with auto-zero and auto-polarity.Decimal points are user selectable.The SP 300features a negative rail generator which enables the meter to measure a signal referenced to its own power supply 0V .The bright red LED display ensures excellent readability under low light conditions.It can be blanked in applications requiring low power operation.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 and seal ensures splash proofing in many applications.

Specification

Min.Typ.

Max.

Unit

Accuracy (overall error)*0.1%(±1count)

Linearity ±1

count Sample rate

2.5

samples/sec

Operating temperature range 0

50

°C Warm-up time

10minute Temperature stability 150ppm/°C Supply voltage 4.755 5.25V 50mA Input leakage current (Vin =0V)

1

10

pA

*To ensure maximum accuracy,re-calibrate periodically.

Supply current

PO Box 770, Londonderry, NH 03053 1-800-821-0023

PIN FUNCTIONS

1.V+Positive power supply to the meter.

2.0V 0V power supply connection to the meter.

https://www.sodocs.net/doc/0c236128.html, Ground for analogue section of A/D converter.

It is actively held at 3.05V (nom)below V+and must not be allowed to sink excessive current (>100A)by,for instance,connecting to a higher voltage.

4.IH Positive measuring input.

5.IL Negative measuring input.

6.DP1Connect to 0V to display DP1(199.9).

7.DP2Connect to 0V to display DP2(19.99).

8.DP3Connect to 0V to display DP3(1.999).A negative supply is generated internally and mirrors the positive supply.For example:if V+is +5V ,then the internally generated V-is -5V .When measuring with the input referenced to the same supply rail as that of the panel meter,then the limitations on the input range are (V-+1.5V)to (V+-1.5V).LCOM Normally Open.Connects IL to COM.

μNote:

Solder Links:1

4

53

2

6

9

16

7

8

分销商库存信息: MARTEL-ELECTRONICS SP300