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Calibration Certificate <br />Part Number: 714A0401 <br />Description: LINEAR MICROPHONE BMIII <br />Date: DECEMBER 06, 2000 <br />Unit S/N: BH5569 <br />TEST REFERENCES Model Serial No. <br /> <br />Stanford Spectrum Analyzer* SR760 41067 <br />Gaod Will Inst. Frequenry Counter* GUC-2010G 5110825 <br />Fluke Multimeter* 87 64900577 <br />VOD Cable Simulation Test Jig 717/0201 n/a <br />Bruel &Kjaer Accelerome[er- 4370 925067 <br />Bruel &Kjaer Charge Amplifier* 2635 974792 <br />Bruel &Kjaer Mic Power Supply* 2804 1904947 <br />Bruel &Kjaer Microphone Preamplifier* 2669 1834210 <br />Bruel &Kjaer Microphone Element* 4193 1863904 <br />INSTANTEL INC. hereby certifies that this unit has been calibrated and <br />that the results are consistent with the specifications published regarding <br />.,: <br />`~ this instrument. The SENSORCHECK feature of the unit is sufficiently <br />=;; ~ reliable to indicate proper operation, although it is recommended that this <br />• ~M <br />unit be sent to INSTANTEL or an authorized service centre for regular <br />• V <br />~/ ", <br />.i calibration. <br />=ry <br />. ~~i <br />AUTHORIZED BY: l~ ~~ <br />T <br />~~:' I <br />"S j <br />_- *References are traceable to NRC, NIST or equivalent <br />*< <br />:• <br />..;,: ,~l~y. ~.. ~.. +.?a,~~lly~:`%'~ : =:;. ,qln, ->:-r• r=,nhy .. :~,.. .,.._~,i~lr~,;f'• ~ ~ •.....1",", rr . <br />"~'~~'~ t3 1, ~'~'~'~"~ 1 1• ~'~t~~~:~ C 1~ :~~~~~'~ ~° ~~~~'t~~~ ,•i~• ~'~~'~~~~ ~>fl <br />~ '~i `~,.,ay"~`~ ~~.o"dvyJ ~,'~. M ,'~ ~~ . "~La~v. :~~ • a ~ • l.~ri., 'v <br />8 Lu 1999 <br />01 <br />0 <br />z <br />6 <br />x€ <br />oe <br />u~ <br />$a <br />of <br />