Agilent-technologies N3970A Manual de usuario

Operating and Maintenance GuideN3970A OPTICAL POWER METER

7N3970A UM-1 SAFETY SUMMARYInitial InspectionInspect the shipping container for damage. If there is damage tothe container or Cushioning, keep them u

8 BATTERY AND EXTERNAL POWERThe instrument is powered by two 1.5V dry batteries (Alkaline C) foran operating period of typically 250 hours or

9N3970A UM-1 OPTICAL CONNECTORThe optical port is mounted on a swivel, which allows theconnector to be angled outwards for accessibility, and thenpus

10 OPTICAL CONNECTORCleaningThe glass power meter interface does not make contact with theinserted connector: there is a slight air gap. Therefore it

11N3970A UM-1 GETTING STA RTED AND TURNING ONThis and following sections show you how to use yourinstrument:Check that the correct accessori

12 GETTING STA RTED AND TURNING ONTo disable or enable the buzzer, hold down SHIFT for 3 seconds.To add the carry strap: slip the end of the strap

13N3970A UM-1 AUTOTEST OPERAT I O NGeneral Autotest featuresFor Autotest to function, all instruments involved in the testmust be Agilent Handhel

14 AUTOTEST OPERAT I O Nmeter with a test lead. Set the source to Autotest mode, and thenpush SET REF on the meter for 3 seconds. This will store the

15N3970A UM-1 PO W E R ME T E R OP E R AT I O NAfter instrument turn on, the meter will be calibrated at the lastused λ. To change parameters, push

16 STORING & RECALLING READINGSThere are various ways of storing and recording data, giving theuser flexible ways of working. They are summarised

17N3970A UM-1 STORING & RECALLING READINGSThe memory location is shown at the top right of the display.When storing data, the memory automaticall

18 RS232 INTERFA C EThe connection details of the instrument, and connecting cables are as follows :Some (out of spec) serial ports need a 10 K resis

19N3970A UM-1 CARE OF YOUR INSTRUMENT Follow the directions in this manual on cleaning opticalconnectors. Limit the input optical power to no more

20 ACCURACY CONSIDERATIONSAll measurementsOptical connectors should be kept clean and in good condition.Due to emitter center λ uncertainty (eg 1310

N3970A UM-1 ACCURACY CONSIDERATIONS21

22 CALIBRATION & MAINTENANCEEnabling / disabling ‘shift’ keypad & re-booting themicroprocessor: See section on ‘getting started &turning

23N3970A UM-1 CALIBRATION & MAINTENANCE Measure and record the source power using the referencemeter Transfer the same power level to the meter

24 CALIBRATION, MAINTENANCE & INSTRUMENT RETURNS Hinged display cover removal can be done at this point. The ribbon connector can be disengage

25N3970A UM-1 SPECIFICATIONS - DEFINITION OF TERMSPower Range The range of input powers for which the instrument can be used.Maximum Input Power The

26 SPECIFICATIONS & ORDERING INFORMATIONSensor Element InGaAsWavelength Range 850-1650 nmCalibration Wavelengths 8501, 1300, 1310, 1550 nmPower R

N3970A OPTICAL POWER METER SOURCE QUICK REFERENCE GUIDE To remove interchangeable connector, move interface tomid position, and pull off adaptor.

27N3970A UM-1 SPECIFICATIONS & ORDERING INFORMATION1: All specifications at 850 nm are typical.2: 23 ± 3oK, -10 to –30 dBm, calibration waveleng

28 SPECIFICATIONS & ORDERING INFORMATIONORDERING INFORMATIONInstrumentN3970A Optical Power MeterStandard accessories: Included with instrument: F

29N3970A UM-1 PERFORMANCE TESTThe procedures in this section test the performance of theinstrument. The complete specifications to which the AgilentN

30 PERFORMANCE TESTTable 1 Required EquipmentInstrument/Accessory Recommended Required AlternativeModel Characteristics ModelsLightwave Multimeter

31N3970A UM-1 PERFORMANCE TESTTest RecordResults of the performance test may be tabulated on the TestR e c o rd provided at the end of the tes

32 PERFORMANCE TESTPerformance TestThe performance test given in this section includes theTotal Uncertainty/Accuracy Test. Perform each step in theor

33N3970A UM-1 PERFORMANCE TEST4. Switch on the instruments.a. Switch on the lightwave multimeter.b. Configure the laser source. Set the laser sourc

34 PERFORMANCE TEST6. Measure the DUT.a. Make sure the N3970A (DUT) has warmed upb. Connect the attenuator output cable to the DUT as shown in figur

35N3970A UM-1 PERFORMANCE TESTModel N3970A Optical Power MeterSerial No.OptionsFirmware Rev.Test FacilityPerformed bySpecial NotesDateAmbient Tempera

36 PERFORMANCE TESTDescription Model No.1. Lightwave Multimeter 8163A2. Light Source 1310/1550 nm 81654A3. Optical Hea

1OPTICAL POWER METERN3970ACongratulations on your purchase of this instrument,which has been engineered to provide the best possiblereliability, conve

37N3970A UM-1Model N3970A Optical Power MeterTotal Uncertainty/Accuracy TestTest Wavelengths = 1300 nm and 1310 nmSource Wavelength = nmReport No. Dat

38 PERFORMANCE TESTModel N3970A Optical Power MeterTotal Uncertainty/Accuracy TestTest Wavelengths = 1550 nmSource Wavelength = nmReport No. DateSett

39N3970A UM-1 CLEANING INFORMAT I O NThe following Cleaning Instructions contain some generalsafety precautions, which must be observed during all ph

40 CLEANING INFORMAT I O Ndampened with water, to clean the external case parts. Do notattempt to clean internally.Do not install parts or perform an

41N3970A UM-1 CLEANING PROCEDURESKeep your dust and shutter caps on when your instrument is notin use. This should prevent it from getting too dirty.

42 DISCLAIMER & WA R R A N T YInformation in this manual is given in good faith for the benefitof the user. It cannot be used as the basis for cl

43N3970A UM-1 N O T E S

44 N O T E S

2 CO N T E N T SBEFORE READING FURTHER, OPEN THE CONTROL PANEL PICTURE AT THE BACK OF THE MANUALService and Support 3Introduction & applications

3N3970A UM-1 S E RVICE AND SUPPORTAny adjustment, maintenance, or repair of this product must bep e rf o rmed by qualified personnel. Contact yo

4 IN T R O D U C T I O N A N D AP P L I C AT I O N SThe N3970A Optical Power Meter is used for field or laboratorytesting of fiber optic systems at t

5N3970A UM-1The tone detector is very sensitive, and is useful for fiberidentification, and calibrating the modulation frequency of testtone sources.T

6 SAFETY SUMMARYThe following general safety precautions must be observedduring all phases of operation, service, and repair of thisinstrument. Failu