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Materials Authorization (RMA) 
Number. This RMA number should be 
clearly marked on the outside of all 
package(s) and on the packing list(s) 
accompanying the shipment. A detailed 
account of the nature of the problem(s) 
being experienced with the equipment 
should also be included inside the 
package(s) containing any returned 
materials. 
 
A Purchase Order, included with the 
returned materials, will expedite the 
turn-around of serviced equipment. It is 
recommended to include authorization 
on the Purchase Order for PCB to 
proceed with any repairs, as long as they 
do not exceed 50% of the replacement 
cost of the returned item(s). PCB will 
provide a price quotation or replacement 
recommendation for any item whose 
repair costs would exceed 50% of 
replacement cost, or any item that is not 
economically feasible to repair. For 
routine calibration services, the Purchase 
Order should include authorization to 
proceed and return at current pricing, 
which can be obtained from a factory 
customer service representative. 
 

Warranty

 – All equipment and repair 

services provided by PCB Piezotronics, 
Inc. are covered by a limited warranty 
against defective material and 
workmanship for a period of one year 
from date of original purchase. Contact 

PCB for a complete statement of our 
warranty. Expendable items, such as 
batteries and mounting hardware, are not 
covered by warranty. Mechanical 
damage to equipment due to improper 
use is not covered by warranty. 
Electronic circuitry failure caused by the 
introduction of unregulated or improper 
excitation power or electrostatic 
discharge is not covered by warranty. 
 

Contact Information

 – International 

customers should direct all inquiries to 
their local distributor or sales office. A 
complete list of distributors and offices 
can be found at www.pcb.com. 
Customers within the United States may 
contact their local sales representative or 
a factory customer service 
representative. A complete list of sales 
representatives can be found at 
www.pcb.com. Toll-free telephone 
numbers for a factory customer service 
representative, in the division 
responsible for this product, can be 
found on the title page at the front of this 
manual. Our ship to address and general 
contact numbers are: 
 
PCB Piezotronics, Inc. 
3425 Walden Ave. 
Depew, NY 14043 USA 
Toll-free: (800) 828-8840 
24-hour SensorLine

SM

: (716) 684-0001 

Website: www.pcb.com 
E-mail: [email protected] 

 
 
 
 
 
 
 
 
 
 

 
 

DOCUMENT NUMBER:  21354 
DOCUMENT REVISION:  B 
ECN: 17900 

Summary of Contents for 378B20

Page 1: ...e 377B20 426E01 installation and operating manuals that comprise a Model 378B20 ICP Microphone System kit For assistance with the operation of this product contact PCB Piezotronics Inc Toll free 800 8...

Page 2: ...id the factory warranty Calibration Routine calibration of sensors and associated instrumentation is recommended as this helps build confidence in measurement accuracy and acquired data Equipment cali...

Page 3: ...warranty against defective material and workmanship for a period of one year from date of original purchase Contact PCB for a complete statement of our warranty Expendable items such as batteries and...

Page 4: ...he instrument will be used Whether for legal purposes or for quality assurance programs these standards will help determine the required quality accuracy and consistency of the instrument Standards th...

Page 5: ...ponse reactions of the human ear to the pressure fluctuations Some examples of typical sound pressure levels are shown in the table below dB Pressure Example 0 0 00002 Pa Threshold of Hearing 60 0 02...

Page 6: ...and noise cones the fre quency response of the microphone will be attenuated at higher frequencies Clamps and stands When holding a microphone in place it is important to minimize the influence of the...

Page 7: ...2LA manufacturers Our internal metrology laboratory is certified to ISO 9001 accredited by A2LA to AN SI IEC 17025 and ANSI NCSL Z540 1 complies with ISO 10012 1 and former MIL STD 45662A and uses equ...

Page 8: ...VDC Output Impedance 50 Ohm 50 Ohm Maximum Output Voltage 7 Vpk 7 Vpk Physical Housing Material Stainless Alloy Stainless Alloy Venting Rear Rear 6 Electrical Connector BNC Jack BNC Jack Mounting Thre...

Page 9: ......

Page 10: ...Microphone Installation and Operating Manual For assistance with the operation of this product contact PCB Piezotronics Inc Toll free 800 828 8840 24 hour SensorLine 716 684 0001 Fax 716 684 0987 E m...

Page 11: ...id the factory warranty Calibration Routine calibration of sensors and associated instrumentation is recommended as this helps build confidence in measurement accuracy and acquired data Equipment cali...

Page 12: ...warranty against defective material and workmanship for a period of one year from date of original purchase Contact PCB for a complete statement of our warranty Expendable items such as batteries and...

Page 13: ...he instrument will be used Whether for legal purposes or for quality assurance programs these standards will help determine the required quality accuracy and consistency of the instrument Standards th...

Page 14: ...ponse reactions of the human ear to the pressure fluctuations Some examples of typical sound pressure levels are shown in the table below dB Pressure Example 0 0 00002 Pa Threshold of Hearing 60 0 02...

Page 15: ...and noise cones the fre quency response of the microphone will be attenuated at higher frequencies Clamps and stands When holding a microphone in place it is important to minimize the influence of the...

Page 16: ...2LA manufacturers Our internal metrology laboratory is certified to ISO 9001 accredited by A2LA to AN SI IEC 17025 and ANSI NCSL Z540 1 complies with ISO 10012 1 and former MIL STD 45662A and uses equ...

Page 17: ...20 Pa 1 Electrical Capacitance Polarized 11 pF 11 pF 1 Polarization Voltage 0 V 0 V 2 Physical Housing Material Stainless Alloy Stainless Alloy Venting Rear Rear Mounting Thread Preamplifier 0 4606 60...

Page 18: ...ARIZED MICROPHONES DECIMALS XX 03 XXX 010 DECIMALS X 0 8 XX 0 25 JDM 9 14 05 ECB 9 14 05 CCL 9 14 05 1 1 2 2 A A B B 60 15 3 64 16 4 36 9 2 50 12 7 4606 60 UNS 11 7 mm 60 UNS THREADS 52 13 2 47 12 0 4...

Page 19: ...plifier Installation and Operating Manual For assistance with the operation of this product contact PCB Piezotronics Inc Toll free 800 828 8840 24 hour SensorLine 716 684 0001 Fax 716 684 0987 E mail...

Page 20: ...id the factory warranty Calibration Routine calibration of sensors and associated instrumentation is recommended as this helps build confidence in measurement accuracy and acquired data Equipment cali...

Page 21: ...warranty against defective material and workmanship for a period of one year from date of original purchase Contact PCB for a complete statement of our warranty Expendable items such as batteries and...

Page 22: ...he instrument will be used Whether for legal purposes or for quality assurance programs these standards will help determine the required quality accuracy and consistency of the instrument Standards th...

Page 23: ...ponse reactions of the human ear to the pressure fluctuations Some examples of typical sound pressure levels are shown in the table below dB Pressure Example 0 0 00002 Pa Threshold of Hearing 60 0 02...

Page 24: ...and noise cones the fre quency response of the microphone will be attenuated at higher frequencies Clamps and stands When holding a microphone in place it is important to minimize the influence of the...

Page 25: ...2LA manufacturers Our internal metrology laboratory is certified to ISO 9001 accredited by A2LA to AN SI IEC 17025 and ANSI NCSL Z540 1 complies with ISO 10012 1 and former MIL STD 45662A and uses equ...

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