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Calibration Certificate <br />Part Number: 714A0401 <br />Description: BMIII LIN MIC 2HZ-250HZ <br />Date: September ]0, 2001 <br />Unit S/N: BH5408 <br />TEST REFERENCES Model Serial No. <br /> <br />Stanford Spectrum Analyzer+ SR760 41067 <br />Good Will Inst. Frequency Counter" GUC-2010G 5110825 <br />Fluke Multimeter* 87 64900577 <br />VOD Cable Simulation Test lig 717]0201 n/a <br />Bruel &Kjaer Accelerometer+ 4370 925067 <br />Bmel &Kjaer Charge Amplifier+ 2635 974792 <br />Bmel & 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 />this 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: ~~n o~ <br />_~ <br />+References are traceable to NRC, ST or equivalent <br />O1 <br />Si <br />G <br />~¢ <br />o: <br />aF <br />„s <br />oa <br />us <br />