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Calibration Certificate <br />Part Number: 714A040] <br />Description: BMIII LIN MIC 2HZ-250HZ <br />Date: Lune 22, 2001 <br />Urtit S/N: BH6699 <br />TEST REFERENCES Model Serial No. <br /> <br />Stanford Spectrum Analy~er* SR760 41067 <br />Good Will Inst. Frequency Counte r" GUC-2010G 5110825 <br />Fluke Multimeter* 87 64900577 <br />VOD Cable Simulation Test ]ig 7]7]0201 n/a <br />Bruel &Kjaer Acceterometer* 4370 925067 <br />Bruel &Kjaer Charge Amplifier" 2635 974792 <br />Bruel &Kjaer Mic Power Supply" 2804 1904947 <br />Bruel &Kjaer Microphone Preampl~er* 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 />tltis instrument. The SENSORCHECK feature of the unit is sufficiently <br />reliable to indicate proper operation, although it is recommended that this <br />unit be sent to INSTANTEL or an authorized service centre for regular <br />calibration. <br />AUTHORIZED BY: ~~~1 <br />"References are traceable to NRC, MST or equivalent <br />O1 <br />s <br />as <br />x~ <br />o~ <br />ne <br />~c~ <br />az <br />