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Agilent Technologies N3970A, Руководство по эксплуатации и техническому обслуживанию

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5

N3970A UM-1

The tone detector is very sensitive, and is useful for fiber
identification, and calibrating the modulation frequency of test
tone sources.

The  instrument  has  shock  absorbent  corners,  and  a  tough
polycarbonate housing which has passed extensive drop testing.

Typical applications

■

Singlemode  testing,  with  versatile  interc h a n g e a b l e
connectors.

■

Telecom construction, maintenance, CATV, LAN and R&D
applications.

■

Measurements where traceability and documentation are
required.

■

Quality assurance and acceptance tests.

■

Automated testing and re p o rting using optional Excel software .

■

Test tone measurement & fiber identification.

■ 

I

N T R O D U C T I O N A N D

A

P P L I C AT I O N S

Содержание N3970A

Страница 1: ...Operating and Maintenance Guide N3970A OPTICAL POWER METER...

Страница 2: ......

Страница 3: ...e power meter push the left side of and again for the other wavelength Push right side of twice to exit Autotest remains for 8 seconds after signal loss to allow quick connection change Toexitautotest...

Страница 4: ...of this instrument which has been engineered to provide the best possible reliability convenience and performance To get the best use from your equipment and ensure its safe operation please spend a...

Страница 5: ...g started and turning on 11 12 Autotest operation 13 14 Power meter operation 15 Storing recalling readings 16 17 RS232 interface 18 Care of your instrument 19 Accuracy considerations 20 21 Calibratio...

Страница 6: ...Web at http www agilent com find assist If you do not have access to the Internet one of these centers can direct you to your nearest representative United States 1 800 452 4844 Canada 1 877 894 4414...

Страница 7: ...l source and meter in Autotest mode automatically measure single or dual attenuation in one direction High operational reliability availability is achieved with 250 hour battery life 3 year recommende...

Страница 8: ...ng which has passed extensive drop testing Typical applications Singlemode testing with versatile interchangeable connectors Telecom construction maintenance CATV LAN and R D applications Measurements...

Страница 9: ...nt in safe condition WARNING The WARNING sign denotes a hazard It calls attention to a procedure practice or the like which if not correctly performed or adhered to could result in injury or loss of l...

Страница 10: ...m electrical tests when there are signs of shipping damage to any portion of the outer enclosure covers panels and so on WARNING You MUST return instruments with malfunctions to an Agilent Technologie...

Страница 11: ...rgy for another 30 minutes of use For saving of energy the instrument automatically turns off after 10 minutes without operation For changing the battery open the cover of the battery compartment at t...

Страница 12: ...positions With some styles of connector it is easier to pull off the adaptor with a test lead in place since this gives better grip Different styles of connector adaptor ST SC FC can be easily fitted...

Страница 13: ...tch the glass In this manual refer to the sections on Cleaning Information and Procedures for further information Bare fiber adaptors Bare fiber adaptors used with this power meter must achieve fiber...

Страница 14: ...tay on permanently To back light the display temporarily select LIGHT To back light continuously hold down the button for 3 seconds Use of the back light will drain the batteries faster This instrumen...

Страница 15: ...f the instrument and secure the buckle This instrument requires no warm up and no user adjustment of dark current to achieve it s specified performance To learn how to use the instrument features go t...

Страница 16: ...optical connections without re starting Autotest each time A light source transmits Autotest signals at one or two wavelengths to an appropriate power meter Operation Turn on the source and meter and...

Страница 17: ...eter for 3 seconds This will store the reference at all relevant wavelengths Either a local or remote reference can be stored To exit Autotest mode either disconnect the optical test lead or exit Auto...

Страница 18: ...ence push SET REFfor 3 seconds To display the stored reference value keep ABS REL depressed To change the dBm display between linear and log access the hidden keypad and push dBm W If the meter detect...

Страница 19: ...cess the hidden keypad and push MAX MIN The display will show the maximum and minimum values in sequence Then push MAX MIN for 3 seconds to re start the recording process This function re sets automat...

Страница 20: ...ded the entire memory can be cleared ready for the next job Memory operating sequence Store data in next location push STORE Store data starting at a particular location push SELECT SET STORE The memo...

Страница 21: ...ce can be used to access and control the instrument from an external computer All functions can be accessed remotely See next pages for available software The baud rate can be set to 0 3 0 6 1 2 2 4 4...

Страница 22: ...not waterproof If moisture does get into the instrument dry it out carefully before using it again Where possible keep instrument away from strong sunlight During prolonged storage remove batteries t...

Страница 23: ...if source power is still within acceptable limits It is worth noting that most sources only quote typical drift after warm up Actual drift may of course be significantly worse and will be very variab...

Страница 24: ...N3970A UM 1 ACCURACY CONSIDERATIONS 21...

Страница 25: ...er meter with appropriate calibrated wavelengths singlemode test leads an anti tamper label and a 0 1 programming jumper Check the calibration certificates on your reference equipment to ensure curren...

Страница 26: ...artment Do no forget to update your calibration records and schedule the next due date Maintenance CAUTION Do not open unless the warranty has expired you are authorised to do so and you have a static...

Страница 27: ...current about 0 2 mA active current about 25 mA Before returning equipment for repair or calibration please check with your local Agilent Technologies Service Center see page 3 Service and Support to...

Страница 28: ...conditions including all uncertainties in the calibration chain from the national laboratory to the test meter connectors and patchcords must be absolutely clean and undamaged Reference conditions are...

Страница 29: ...mum Input Power 15 dBm Uncertainty at reference conditions 2 0 13 dB 3 Total Uncertainty 3 0 3 dB 7 2pW Autotest sensitivity typical 4 40 dBm 850 nm 50 dBm other wavelengths Operating Time 250 hours A...

Страница 30: ...g temperature range 4 Tested at room temperature using an optical attenuator Size 190 x 130 x 70 mm 7 9 x 5 4 x 2 9 Weight 500 gm 1 1 lb Shipping 2 Kg 4 4 lb Operating storage 10 to 55 C 25 to 70 C Po...

Страница 31: ...interchangeable optical connector adaptors and works with both PC and APC connectors The N3974A Optical Power Meter is supplied with a straight contact output connector interface To connect to the in...

Страница 32: ...rformed without access to the interior of the instrument The test equipment given corresponds to tests carried out with Diamond HMS 10 connectors and FC PC connectors on the DUT devise under test Equi...

Страница 33: ...550 30nm 81650A 81651A Short Term Stability 0 005 dB or 81655A and 81656A Optical Attenuator 8156A 101 Attenuation 50 dB Return Loss 26 dB Repeatability 0 01 dB Connector Interfaces 81000AI 3ea Connec...

Страница 34: ...without written permission from Agilent Technologies Test Failure If the Agilent N3970A fails any performance test return the instrument to the nearest Agilent Technologies Sales Service Office for re...

Страница 35: ...ocedures on page 41 Make sure that all patchcords are fixed to the table so that they won t move during measurements Make sure that the ambient conditions are in the following ranges temperature 23 C...

Страница 36: ...Set the DUT to dBm f Make sure that all the instruments are warmed up 5 Make the reference measurement a Enable the laser source and the attenuator output b Change the attenuation of the attenuator u...

Страница 37: ...value for setting 1 Note the displayed power level of the DUT in the test record e Set the attenuator to its value for setting 2 Note the displayed power level of the DUT in the test record f Set the...

Страница 38: ...UM 1 PERFORMANCE TEST Model N3970A Optical Power Meter Serial No Options Firmware Rev Test Facility Performed by Special Notes Date Ambient Temperature oC Relative Humidity Line Frequency Hz Customer...

Страница 39: ...ce 1310 1550 nm 81654A 3 Optical Head 81624A C01 4 Optical Head Interface Module 81618A 5 Optical Attenuator 8156A 101 6 7 8 9 10 Accessories Product Singlemode Fiber 1 81101AC 1 81101PC Connector Int...

Страница 40: ...o Date PERFORMANCE TEST Setting Number 1 2 3 4 3 00 dBm 20 00 dBm 30 00 dBm 50 00 dBm 3 30 dBm 20 30 dBm 30 30 dBm 50 30 dBm 2 70 dBm 19 70 dBm 29 70 dBm 49 70 dBm Measurement Uncertainty dB dB dB dB...

Страница 41: ...ort No Date Setting Number 1 2 3 4 3 00 dBm 20 00 dBm 30 00 dBm 50 00 dBm 3 30 dBm 20 30 dBm 30 30 dBm 50 30 dBm 2 70 dBm 19 70 dBm 29 70 dBm 49 70 dBm Measurement Uncertainty dB dB dB dB dB dBm dBm d...

Страница 42: ...ket Guide Cleaning Procedures for Lightwave Test and Measurement Equipment Agilent P N 5963 3538F If you do not have a copy of this pocket guide Agilent will provide you with one free of charge Safety...

Страница 43: ...art of the end of a fiber core and as a result will reduce the performance of your system Furthermore the power density may burn dust into the fiber and cause additional damage for example 0 dBm optic...

Страница 44: ...Blow away any remaining lint with compressed air Procedure for Stubborn Dirt Use this procedure when there is greasy dirt on the interface and using the procedure for light dirt is not sufficient Usin...

Страница 45: ...results from use or attempted repair of the equipment Agilent Technologies products are guaranteed against defective components and workmanship for a period of 3 years from the date of delivery unless...

Страница 46: ...43 N3970A UM 1 NOTES...

Страница 47: ...44 NOTES...

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