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BRUEL & KJAER 4294, User Manual, Page: 1 / 22

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HEADQUARTERS: Brüel & Kjær Sound & Vibration Measurement A/S · DK-2850 Nærum · Denmark
Telephone: +45 7741 2000 · Fax: +45 4580 1405 · www.bksv.com · [email protected]

Local representatives and service organisations worldwide

Calibration Exciter
Types 4294 and 4294-002

English BE 0739 – 15

User Manual

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Summary of Contents for 4294

Page 1: ...bration Measurement A S DK 2850 N rum Denmark Telephone 45 7741 2000 Fax 45 4580 1405 www bksv com info bksv com Local representatives and service organisations worldwide Calibration Exciter Types 429...

Page 2: ......

Page 3: ...BE 0739 15 April 2014 Calibration Exciter Types 4294 and 4294 002 User Manual From serial no 2863100...

Page 4: ...ence of flammable liquids or gases Warnings Switch off all power to equipment before connecting or disconnecting their digital interface Failure to do so could damage the equipment Whenever it is like...

Page 5: ...andling 3 2 2 Battery Installation and Replacement 3 2 3 Mounting a Transducer 4 2 4 Basic System Calibration 5 2 5 Transducer Sensitivity Check 6 CHAPTER 3 Specifications 9 3 1 Compliance with Standa...

Page 6: ......

Page 7: ...of measuring instrumentation at a standard acceleration level of 10 ms 2 0 70 gram load The reference signal can also be used for velocity and displacement calibration at 10 mms 1 and 10 m respectivel...

Page 8: ...raightforward You can attach a transducer to the vibration table using see Fig 2 2 10 32 UNF Steel Stud YQ 2962 10 g Mounting Disc DB 2996 supplied for transducers with 3 mm threads fitted with Mounti...

Page 9: ...016 IEC Type 6LR61 is recommended The battery fits into the battery holder which is accessible after unscrewing the base of the calibrator see Fig 2 1 To prevent damage take care not to cross the scre...

Page 10: ...order to protect the vibration table from damage The mounting disc lets you attach accelerometers in several ways Small transducers fitted with 3 mm threads can be attached using 3 mm Steel Stud YQ 20...

Page 11: ...idal acceleration of 10 ms 2 RMS 3 4294 002 3 16 ms 2 RMS 3 at a frequency of 159 15 Hz that is 1000 rad s 1 5 Switch the range controls of the preamplifier and or indicating instrument to obtain an o...

Page 12: ...ected If a conditioning preamplifier featuring direct dial in of charge or voltage sensitivity is employed the relevant sensitivity specified on the transducer s calibration chart should be entered be...

Page 13: ...arge sensitivity then an arbitrary mV unit out range may be selected on the preamplifier Multiplication of the mV unit out setting be the reference acceleration level gives the correct voltmeter readi...

Page 14: ...Calibration Exciter Types 4294 and 4294 002 User Manual 8...

Page 15: ...teristics of information technology equipment Class B Limits FCC Rules Part 15 Complies with the limits for a Class B digital device EMC Immunity EN IEC61000 6 1 Generic standards Immunity for residen...

Page 16: ...Battery One 9 V Alkaline Battery QB 0016 IEC type 6LR61 Battery Life Approximately 200 calibrations each lasting 100 s with automatic switching off at the end of each calibration Warm up Time Seconds...

Page 17: ...s Fig 3 1 Dimensions of Type 4294 without leather case Fig 3 2 Main dimensions mm of the calibrator s vibration table 43 5 mm 1 7 in 128 mm 5 0 in 135 mm 5 3 in 120527 1 14 YM 0437 Helicoil 10 32 UNF...

Page 18: ...Calibration Exciter Types 4294 and 4294 002 User Manual 12...

Page 19: ...urther damage For repair please contact your local Br el Kj r representative Under no circumstances should repair be attempted by persons not qualified in the service of electronic instrumentation Rec...

Page 20: ...Calibration Exciter Types 4294 and 4294 002 User Manual 14...

Page 21: ......

Page 22: ...bration Measurement A S DK 2850 N rum Denmark Telephone 45 7741 2000 Fax 45 4580 1405 www bksv com info bksv com Local representatives and service organisations worldwide Calibration Exciter Types 429...

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