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Figure 7
~ Calibration Certificate ~
Model Number:
130A24
Serial Number:
41270
Description:
ICP® Microphone
Manufacturer:
PCB
Method
1
: Back-to-Back Reference
Calibration Data
Sensitivity:
10.4
mV/Pa
Reference Freq.:
250
Hz.
-39.7
dB re 1V/Pa
Output Bias:
11.8
VDC
Temperature:
71
°F
22
°C
Relative Humidity:
39
%
Condition of Unit
As Found: n/a
As Left:
New Unit, In Tolerance
Notes
1. This method involves comparing the test unit with a reference microphone in a GRAS 51AB calibrator.
2. Calibration of reference equipment is traceable to one or more of the following National Labs; NIST, PTB or DFM .
3. Calibration is performed in compliance with ISO 9001, ISO 10012-1 and ANSI/NCSL Z540.3.
4. Due to state-of-the-art limitations, 4:1 calibration ratios are not possible on pressure measurement standards, microphones
and acoustic calibrators. Calibration ratios for these types of devices are limited to 1:1.
5. See M anufacturer’s Specification Sheet for a detailed listing of performance specifications.
6. This certificate shall not be reproduced, except in full, without written approval from PCB Piezotronics, Inc
7. Calibrated per ACS-21.
Technician:
Date:
V
3425 Walden Avenue
Depew, New York 14043
Page 1 of 1
T EL: 888-684-0013
FAX: 716-685-3886
www.pcb.com
CAL109-3511809875.09
April 13, 2015
William M. Urbanek
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