Model 378B02 ICP Microphone System Installation and Operating

cases when not in use. With proper maintenance, the microphone and preamplifier should provide stable and accurate results for years to come.

Dust, rain, oil, moisture or exposure to extreme temperatures may adversely affect the microphone and preamplifier’s performance. If the microphone or the inside of the connection area of the preamplifier becomes contaminated, use a light pressure rubber bulb to gently blow clean, dry air onto the unit in order to remove the dust. In the event that you absolutely must take off the grid cap and clean the microphone diaphragm, we recommend using a blow bulb or a light pressure, clean and dry air hose to gently blow contamination off the diaphragm. The direction of the air should be parallel with the diaphragm, not directly

(0 degree incidence) pointed at the diaphragm. Do not touch the microphone’s diaphragm with your fingers or let it come in contact with any sharp or pointed object. Please note that any contact to the microphone’s diaphragm can negatively impact the sensitivity and long term stability of the microphone.

If the microphone is ever dropped or comes into contact with any contamination, or is exposed to extreme temperatures, we recommend immediate recalibration of the microphone. Please note that heat from your hands can affect the calibration results. It is always good practice to wait a minimum of 30 seconds after placing the microphone on a test system before taking a calibration reading in order to minimize the effect that heat from your hands has on the calibration.

7.0 Calibration

PCB offers recalibration services for our precision microphones, as well as units produced by other A2LA 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 equipment directly traceable to one or more of the following National Labs (NIST, PTB or DFM).

Our investment in equipment, traceability and conformance to industry standards ensures accurate calibration against relevant specifications. We also carry a line of acoustic calibrators that can be used to calibrate microphone sensitivity on site as needed.

8.0 Warranty and Service

All equipment and repair services provided by PCB Piezotronics, Inc. are covered by a warranty against defective material and workmanship under a Total Customer Satisfaction policy. 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. See the supplemental sheet, contained with this manual, for information on our service, repair and return policies, procedures and instructions. When unexpected problems arise, call our 24-Hour SensorLine SM (716-684-0001) to speak with an

Application Engineer. Visit www.pcb.com

for a complete statement of our warranty.

3425 Walden Avenue, Depew, NY 14043-2495

E-Mail: [email protected]

24-hour SensorLine

SM

: 716-684-0001

Website: www.pcb.com

A PCB GROUP COMPANY

U.S.A. Fax: 716-684-0987

Toll-free (in the U.S.A.): 800-828-8840

ISO 9001 CERTIFIED A2LA ACCREDITED to ISO 17025



2014 PCB Group, Inc. In the interest of constant product improvement, specifications are subject to change without notice.

PCB and ICP are registered trademarks of PCB Group, Inc. Sensor Line is a service mark of PCB Group, Inc. All other trademarks are properties of the respective owners.

Manual Number: 27042

Manual Revision: C

ECO 42502

4

Printed in the U.S.A.

Model Number

378B02

ICP MICROPHONE SYSTEM

Revision: A

ECN #: 42896

Performance

Nominal Microphone Diameter

Frequency Response Characteristic(at 0° incidence)

Open Circuit Sensitivity

Open Circuit Sensitivity (+/-1.5 dB)

Frequency Range(+/-1 dB)

Frequency Range (+/-2 dB)

Lower Limiting Frequency(-3 dB)

Inherent Noise(Linear)

Inherent Noise

Dynamic Range(3% Distortion Limit)

Dynamic Range (Maximum without Clipping)

TEDS Compliant

Environmental

Temperature Range(Operating)

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

Static Pressure Coefficient

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

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

Electrical

Polarization Voltage

Excitation Voltage

Constant Current Excitation

Output Bias Voltage

Output Impedance

Maximum Output Voltage

Physical

Housing Material

Venting

Electrical Connector

Mounting Thread(Grid)

Size (Diameter x Height)(with grid)

Size (Diameter x Height) (without grid)

Weight

ENGLISH

1/2"

SI

1/2"

Free-Field

50 mV/Pa

Free-Field

50 mV/Pa [3]

-26 dB re 1 V/Pa -26 dB re 1 V/Pa [3]

7 to 10,000 Hz 7 to 10,000 Hz

3.75 to 20,000 Hz 3.75 to 20,000 Hz

1.0 to 3.0 Hz 1.0 to 3.0 Hz

<18.5 dB re 20 µPa <18.5 dB re 20

µPa

<16.5 dB(A) re 20

µPa

<16.5 dB(A) re 20

µPa

>135 dB re 20 µPa >135 dB re 20 µPa

138 dB re 20 µPa 138 dB re 20 µPa [2][4]

Yes Yes [5]

-40 to +176 °F

0.005 dB/°F

-40 to +80 °C

0.009 dB/°C [2][3]

-0.013 dB/kPa -0.013 dB/kPa [2][3]

± 0.001 dB/%RH ± 0.001 dB/%RH [3]

63 dB re 20 µPa 63 dB re 20 µPa [2]

0 V

20 to 30 VDC

2 to 20 mA

10 to 14 VDC

<50 Ohm

+/-7 Vpk

0 V

20 to 30 VDC

2 to 20 mA

10 to 14 VDC

<50 Ohm

+/-7 Vpk

Stainless Alloy

Rear

BNC Jack

0.5 - 60 UNS

Stainless Alloy

Rear

BNC Jack

0.5 - 60 UNS

0.52 in x 3.62 in 13.2 mm x 91.9 mm

0.50 in x 3.58 in 12.7 mm x 90.9 mm

1.63 oz 45.8 gm

[1]

[6]

[2]

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] Peak.

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

[6] Venting through Preamp.

[7] See PCB Declaration of Conformance PS064 for details.

SUPPLIED ACCESSORIES:

Model ACS-42 Calibration of microphone with preamplifer (1)

Entered: AP Engineer: MJN Sales: MV Approved: MT Spec Number:

[7]

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.

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

3425 Walden Avenue, Depew, NY 14043

57824

Phone: 716-684-0001

Fax: 716-684-0987

E-Mail: [email protected]