Agilent Technologies U1270 Series Manual de Serviço

Agilent TechnologiesAgilent U1270 Series Handheld Digital MultimetersService Guide

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U1270 Series Service Guide XITable of Contents1 Calibration ProceduresCalibration Overview 18Closed-case calibration 18Agilent calibration s

XII U1270 Series Service Guide2 Service and MaintenanceTroubleshooting 52Checking the Fuse 53Fuse Replacement 57Returning the Instrumen

U1270 Series Service Guide XIIIList of FiguresFigure 1-1 U1273A/U1273AX OLED display screen 22Figure 1-2 U1271A/U1272A LCD screen 23Figure 1-3

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U1270 Series Service Guide XVList of TablesTable 1-1 Recommended test equipment 20Table 1-2 Performance verification tests 28Table 1-3 Adjust

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17U1270 Series Handheld Digital MultimetersService GuideAgilent Technologies1Calibration ProceduresCalibration Overview 18Closed-case calibration

1 Calibration Procedures Calibration Overview18 U1270 Series Service GuideCalibration OverviewThis manual contains procedures to verify the U1270 Ser

Calibration Procedures 1 Calibration OverviewU1270 Series Service Guide 19Calibration intervalA 1- year interval is adequate for most applications. Ac

II U1270 Series Service GuideNotices© Agilent Technologies, Inc. 2010–2014No part of this manual may be reproduced in any form or by any means (includ

1 Calibration Procedures Recommended Test Equipment20 U1270 Series Service GuideRecommended Test EquipmentThe test equipment recommended for the perf

Calibration Procedures 1 Recommended Test EquipmentU1270 Series Service Guide 21Temperature Fluke 5520A<20% of the U1270 Series accuracy specificat

1 Calibration Procedures Basic Operating Test22 U1270 Series Service GuideBasic Operating TestThe tests listed below are used to test the basic opera

Calibration Procedures 1 Basic Operating TestU1270 Series Service Guide 23For U1271A/U1272A models:Check that all the annunciators are displayed on th

1 Calibration Procedures Basic Operating Test24 U1270 Series Service GuideThe alert beep tone will continue to beep until the test lead is removed fr

Calibration Procedures 1 Calibration ProcessU1270 Series Service Guide 25Calibration Process1 Prior to performing the verification tests, see the “Tes

1 Calibration Procedures Test Considerations26 U1270 Series Service GuideTest ConsiderationsFor optimum performance, all procedures should comply wit

Calibration Procedures 1 Performance Verification TestsU1270 Series Service Guide 27Performance Verification TestsUse the performance verification tes

1 Calibration Procedures Performance Verification Tests28 U1270 Series Service GuideTable 1 - 2 Performance verification tests Step Test function Ran

Calibration Procedures 1 Performance Verification TestsU1270 Series Service Guide 292ACV Turn the rotary switch to the position.3 V 3 V, 20 Hz - ±0

U1270 Series Service Guide IIISafety SymbolsThe following symbols on the instrument and in the documentation indicate precautions which must be taken

1 Calibration Procedures Performance Verification Tests30 U1270 Series Service GuideLPF While the rotary switch is in the position, press the ke

Calibration Procedures 1 Performance Verification TestsU1270 Series Service Guide 316DCV Turn the rotary switch to the / position.3 V 3 V ±0.0020 V

1 Calibration Procedures Performance Verification Tests32 U1270 Series Service GuideAC+DCV Turn the rotary switch to the position, and press the

Calibration Procedures 1 Performance Verification TestsU1270 Series Service Guide 33AC+DCmV Tur n th e rotary switch to the position, and press the

1 Calibration Procedures Performance Verification Tests34 U1270 Series Service Guide12Capacitance[6] Tur n the rotary switch to the position.10 nF

Calibration Procedures 1 Performance Verification TestsU1270 Series Service Guide 3515ACμA While the rotary switch is in the position, press the

1 Calibration Procedures Performance Verification Tests36 U1270 Series Service Guide19ACA While the rotary switch is in the position, press the

Calibration Procedures 1 Calibration SecurityU1270 Series Service Guide 37Calibration SecurityThe calibration security code prevents accidental or una

1 Calibration Procedures Unsecuring the Instrument for Calibration38 U1270 Series Service GuideUnsecuring the Instrument for CalibrationBefore you ca

Calibration Procedures 1 Unsecuring the Instrument for CalibrationU1270 Series Service Guide 39If the correct security code is entered, PASS is shown

IV U1270 Series Service GuideSafety ConsiderationsRead the information below before using this multimeter. The descriptions and instructions in this m

1 Calibration Procedures Unsecuring the Instrument for Calibration40 U1270 Series Service GuideTo reset the calibration security code to its factory

Calibration Procedures 1 Unsecuring the Instrument for CalibrationU1270 Series Service Guide 41If the four digits entered are correct, the display wil

1 Calibration Procedures Using the Front Panel for Adjustments42 U1270 Series Service GuideUsing the Front Panel for AdjustmentsThis section describe

Calibration Procedures 1 Using the Front Panel for AdjustmentsU1270 Series Service Guide 43Valid adjustment input valuesAdjustment can be accomplished

1 Calibration Procedures Using the Front Panel for Adjustments44 U1270 Series Service GuideACV3 V0.3000 V (70 Hz) 0.9 to 1.1 × Reference value3.0000

Calibration Procedures 1 Using the Front Panel for AdjustmentsU1270 Series Service Guide 45ACmA/ACA30 mA03.000 mA (70 Hz) 0.9 to 1.1 × Reference value

1 Calibration Procedures Using the Front Panel for Adjustments46 U1270 Series Service GuideResistanceSHORT 0 Ω[2]0 Ω from calibrator30 MΩOPEN OPEN te

Calibration Procedures 1 Using the Front Panel for AdjustmentsU1270 Series Service Guide 47Adjustment procedure1 Turn the rotary switch to the respect

1 Calibration Procedures Using the Front Panel for Adjustments48 U1270 Series Service Guide7 Use the arrow keys to enter the actual applied input val

Calibration Procedures 1 Calibration CountU1270 Series Service Guide 49Calibration CountYou can query the instrument to determine how many adjustments

U1270 Series Service Guide VWARNING• Do not apply more than the rated voltage (as marked on the multimeter) between terminals, or between the terminal

1 Calibration Procedures Calibration Error Codes50 U1270 Series Service GuideCalibration Error CodesThe following errors indicate failures that may o

51U1270 Series Handheld Digital MultimetersService GuideAgilent Technologies2Service and MaintenanceTroubleshooting 52Checking the Fuse 53Fuse R

2 Service and Maintenance Troubleshooting52 U1270 Series Service GuideTroubleshootingIf the instrument fails to operate, check the batteries and the

Service and Maintenance 2 Checking the FuseU1270 Series Service Guide 53Checking the FuseIt is recommended that you check the fuse(s) of the multimete

2 Service and Maintenance Checking the Fuse54 U1270 Series Service GuideTable 2 - 2 Fuse displayed readingsCurrent input terminal Fuse Part number Fu

Service and Maintenance 2 Checking the FuseU1270 Series Service Guide 55Figure 2-1 Testing Fuse 1SmartSmart

2 Service and Maintenance Checking the Fuse56 U1270 Series Service GuideFigure 2-2 Testing Fuse 2SmartSmart

Service and Maintenance 2 Fuse ReplacementU1270 Series Service Guide 57Fuse ReplacementThe current input terminals of your multimeter are fuse protect

2 Service and Maintenance Fuse Replacement58 U1270 Series Service GuideFigure 2-3 Replacing Fuse 1123

Service and Maintenance 2 Fuse ReplacementU1270 Series Service Guide 59Figure 2-4 Replacing Fuse 2123

VI U1270 Series Service GuideEnvironmental ConditionsThis instrument is designed for indoor use and in an area with low condensation. The table below

2 Service and Maintenance Fuse Replacement60 U1270 Series Service GuideFigure 2-5 Positions of Fuse 1 and Fuse 2Fuse 1: 10 × 35 mm 440 mA/1000 V f

Service and Maintenance 2 Returning the Instrument for ServiceU1270 Series Service Guide 61Returning the Instrument for ServiceBefore shipping your in

2 Service and Maintenance Replaceable Parts62 U1270 Series Service GuideReplaceable PartsThis section contains information for ordering replacement p

Service and Maintenance 2 Types of Service AvailableU1270 Series Service Guide 63Types of Service AvailableIf your instrument fails during the warrant

2 Service and Maintenance Obtaining Repair Service (Worldwide)64 U1270 Series Service GuideObtaining Repair Service (Worldwide)To obtain service for

© Agilent Technologies, Inc., 2010–2014Eleventh Edition, April 18, 2014U1271-90020www.agilent.comAgilent TechnologiesContact usTo obtain service, warr

U1270 Series Service Guide VIIRegulatory MarkingsThe CE mark is a registered trademark of the European Community. This CE mark shows that the product

VIII U1270 Series Service GuideWaste Electrical and Electronic Equipment (WEEE) Directive 2002/96/ECThis instrument complies with the WEEE Directive (

U1270 Series Service Guide IXDeclaration of Conformity (DoC)The Declaration of Conformity (DoC) for this instrument is available on the Agilent Web si