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Calibration Certificate <br />Part Number: 714A0401 <br />Description: BM III LIN MIC 2HZ-250HZ <br />Date: September 26, 2001 <br />Unit: BH5394 <br />TEST REFERENCES* Model Seria{ No. <br />Stanford Specwm Analyzer <br />Good Will Inst. Frequency Counter <br />Fluke Multime[er <br />VOD Cable Simulation Test Jig <br />Bruel &Kjaer Accelerometer <br />Bruel &Kjaer Charge Amplifier <br />Bruel &Kjaer Mic Power Supply <br />Bruel &Kjaer Microphone PreampliFier <br />Bruel &Kjaer Microphone Elemcnt <br />SR760 41036 <br />GUC-2010G 5110825 <br />87III 71990510 <br />717]0201 n/a <br />4370 1425906 <br />2635 1423229 <br />2804 1904864 <br />2669 1936412 <br />4193 1863904 <br />INSTANTEL INC. hereby certifies that this unit has been calibrated and that <br />the results are consistent with the specifications published regarding this <br />insvument. The SENSORCHECKTM feature of the unit is sufficiently <br />reliable to indicate proper opera ion, although it is recommended that this <br />unit be sent to INSTANTEL or an authorized service cenve for regular <br />calibration. <br />AUTHORIZED BY: ~~` ~~"~~' <br />*References are vaceable to NRC, MST or equivalent <br />Inc. 1999~~ ~~ ~~ ~-~ -' 7140 0:7&v 2 <br />