Piezotronics 378C10 Installation And Operating Manual

Model 378C10

ICP Microphone System

Installation and Operating Manual

This manual contains the 377C10, 426B03 installation and operating manuals that

comprise a Model 378C10 ICP Microphone System kit.

For assistance with the operation of this product,

contact PCB Piezotronics, Inc.

Toll-free: 800-828-8840

24-hour SensorLine: 716-684-0001

Fax: [phone]

E-mail: [e-mail]

Web: www.pcb.com

Warranty, Service, Repair, and

Return Policies and Instructions

The informati on contained in this document supersedes all similar i nformation th at
may be found elsewhere in this manual.

Total Customer Satisfaction – PCB

Piezotronics guarantees Total Customer
Satisfaction. If, at any time, for any
reason, you are not completely satisfied
with any PCB product, PCB will repair,
replace, or exchange it at no charge. You
may also choose to have your purchase
price refunded in lieu of the repair,
replacement, or exchange of the product.

Service – Due to the sophisticated nature
of the sensors and associated
instrumentation provided by PCB
Piezotronics, user servicing or repair is
not recommended and, if attempted, may
void the factory warranty. Routine
maintenance, such as the cleaning of
electrical connectors, housings, and
mounting surfaces with solutions and
techniques that will not harm the
physical material of construction, is
acceptable. Caution should be observed
to insure that liquids are not permitted to
migrate into devices that are not
hermetically sealed. Such devices should
only be wiped with a dampened cloth
and never submerged or have liquids
poured upon them.

Repair – In the event that equipment
becomes damaged or ceases to operate,
arrangements should be made to return
the equipment to PCB Piezotronics for
repair. User servicing or repair is not
recommended and, if attempted, may
void 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 calibration
cycles are typically established by the
users own quality regimen. When in
doubt about a calibration cycle, a good
“rule of thumb” is to recalibrate on an
annual basis. It is also good practice to
recalibrate after exposure to any severe
temperature extreme, shock, load, or
other environmental influence, or prior
to any critical test.

PCB Piezotronics maintains an ISO­9001 certified metrology laboratory and
offers calibration services, which are
accredited by A2LA to ISO/IEC 17025,
with full traceablility to N.I.S.T. In
addition to the normally supplied
calibration, special testing is also
available, such as: sensitivity at elevated
or cryogenic temperatures, phase
response, extended high or low
frequency response, extended range, leak
testing, hydrostatic pressure testing, and
others. For information on standard
recalibration services or special testing,
contact your local PCB Piezotronics
distributor, sales representative, or
factory customer service representative.

Returning Equipment – Following
these procedures will insure that your
returned materials are handled in the
most expedient manner. Before returning

any equipment to PCB Piezotronics,
contact your local distributor, sales
representative, or factory customer
service representative to obtain a Return

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 i s 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

DOCUMENT NUMBER: 21354
DOCUMENT REVISION: B
ECN: 17900

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, I nc.
3425 Walden Ave.
Depew, NY 14043 USA
Toll-free: [phone]
24-hour SensorLine

SM

: [phone]
Website: www.pcb.com
E-mail: [e-mail]

Model Number

378C10

ICP MICROPHONE SYSTEM

Revision: A

ECN #: 42896

[9]

Performance

ENGLISH

SI

Nominal Microphone Diameter

1/4"

1/4"

Frequency Response Characteristic

Pressure

Pressure

Open Circuit Sensitivity

1.0 mV/Pa

1.0 mV/Pa

[3]

Open Circuit Sensitivity(+/-3 dB)

-60 dB re 1 V/Pa -60 dB re 1 V/Pa

[3]

Frequency Range(+/-2 dB)

5 to 70,000 Hz 5 to 70,000 Hz

Lower Limiting Frequency

0.75 to 4.0 Hz 0.75 to 4.0 Hz

Inherent Noise(Linear)

<60 dB re 20 µPa <60 dB re 20 µPa

[4]

Inherent Noise

<53 dB(A) re 20

µPa

<53 dB(A) re 20

µPa

[5]

Dynamic Range(3% Distortion Limit)

>174 dB re 20 µPa >174 dB re 20 µPa

Dynamic Range(Maximum without Clipping)

>177 dB re 20 µPa >177 dB re 20 µPa

[6]

TEDS Compliant

Yes

Yes

[7]

Environmental

Temperature Range(Operating)

-40 to +158 °F -40 to +70 °C

Temperature Coefficient of Sensitivity(+14 to +158°F (-10 to +70°C)) 0.004 dB/°F

0.007 dB/°C

[2][3]

Static Pressure Coefficient

-0.003 dB/kPa -0.003 dB/kPa

[2][3]

Humidity Coefficient of Sensitivity(0 to 100%, non-condensing)

± 0.0014

± 0.0014

[3]

Influence of Axial Vibration(0.1g (1 m/s²))

66 dB re 20 µPa 66 dB re 20 µPa

[2]

Electrical

Polarization Voltage

0 V

0 V

[1]

Excitation Voltage

20 to 32 VDC 20 to 32 VDC

Constant Current Excitation

2 to 20 mA

2 to 20 mA

Output Bias Voltage

10 to 14 VDC 10 to 14 VDC

Output Impedance

<50 Ohm

<50 Ohm

Maximum Output Voltage

+/-8 Vpk

+/-8 Vpk

Physical

Housing Material

Stainless Alloy Stainless Alloy

Venting

Rear

Rear

[8]

Electrical Connector

10-32 Jack

10-32 Jack

Mounting Thread(Grid)

0.25 - 60 UNS 0.25 - 60 UNS

Size (Diameter x Height)(with grid)

0.28 in x 2.07 in 7.1 mm x 52.6 mm

Size (Diameter x Height)(without grid)

0.25 in x 2.02 in 6.35 x 51.3 mm

Weight

0.27 oz

7.8 gm

[2]

All specifications are at room temperature unless otherwise specified.
In the interest of constant product improvement, we reserve the right to change specifications without notice.

ICP® is a registered trademark of PCB Group, Inc.

OPTIONAL VERSIONS

Optional versions have identical specifications and accessories as listed for the standard model

except where noted below. More than one option may be used.

TLD

- TEDS Capable of Digital Memory and Communication Compliant with IEEE 1451.4
Optional Accessory : Model ACS-63 Calibration (with TEDS) of Precision Condenser
Microphones and Preamplifiers together (mated pair). (1) replaces Model ACS-42

NOTES:

[1]

Prepolarized

[2]

Typical.

[3] re 250 Hz

[4]

Linear inherent noise is specified over the operating bandwidth (20 Hz

- 70 kHz).

[5]A-

Weighted inherent noise is specified from 20 Hz

- 20 kHz.

[6]

Peak.

[7]

TEDS Capable Digital Memory and Communication, compliant with IEEE P1451.4

[8]

Venting through Preamp.

[9]

See PCB Declaration of Conformance PS076 for details.

SUPPLIED ACCESSORIES:

Model ACS

-

42 Calibration of microphone with preamplifer (1)

Entered: AP Engineer: MJN Sales: MV

Approved: MT

Spec Number:

Date: 5/7/2014 Date: 5/7/2014 Date: 5/7/2014 Date: 5/7/2014

57855

3425 Walden Avenue, Depew, NY 14043

Phone: [phone]
Fax: [phone]
E-Mail: [e-mail]

1

1

2

2

3

3

4

4

A A

B B

CODE

IDENT. NO.

52681

DWG. NO.

SCALE: SHEET

DRAWN CHECKED ENGINEER

TITLE

UNLESS OTHERWISE SPECIFIED TOLERANCES ARE:

DIMENSIONS IN MILLIMETERS

[ IN BRACKETS ]

ANGLES  2 DEGREES

3425 WALDEN AVE. DEPEW, NY 14043

[phone] E-MAIL: [e-mail]

DIMENSIONS IN INCHES

ANGLES  2 DEGREES

FILLETS AND RADII

.003 - .005

FILLETS AND RADII

0.07 - 0.13

OUTLINE DRAWING

57747

1 OF 13X

1/4" ICP MICROPHONE SYSTEM

DECIMALS XX ±.03

XXX ±.010

DECIMALS X ± 0.8

XX ± 0.25

JDM

7/7/14

ECB

7/7/14

NJL

7/7/14

j

m

o

r

a

w

s

k

i

0

9

:

0

1

7

/

8

/

2

0

1

4

5

7

7

4

7

PCB Piezotronics Inc. claims proprietary rights in
the information disclosed hereon. Neither it nor any
reproduction thereof will be disclosed to others
without the written consent of PCB Piezotronics Inc.

2.07 [52.6]

1.86 [47.2]

.11 [2.9]

.41 [10.4]

10-32 COAXIAL CONNECTOR

.03 [0.8]2X

PREAMPLIFIER

.25 [6.4]



MICROPHONE CARTRIDGE

.28 [7.0]

.50 [12.7]

REVISIONS

REV DESCRIPTION DIN

A ADDED ADDITIONAL VENT HOLE 43127