PCB Piezotronics ICP 337A31 User manual

Model 337A31
ICP® Accelerometer
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: [phone]
E-mail: [email protected]
Web: www.pcb.com

The information contained in this document supersedes all similar information that
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 ISO-
9001 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
Warranty, Service, Repair, and
Return Policies and Instructions

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: [phone]
24-hour SensorLineSM: [phone]
Website: www.pcb.com
E-mail: [email protected]
DOCUMENT NUMBER: 21354
DOCUMENT REVISION: B
ECN: 17900

Model Number
337A31
ICP®ACCELEROMETER Revision B
ECN #: 31693
Performance ENGLISH SI
Sensitivity (±5 %) 10 mV/g 1.02 mV/(m/s²)
Measurement Range ±500 g pk ±4905 m/s² pk
Frequency Range (±5 %) 1 to 2000 Hz 1 to 2000 Hz
Frequency Range (±10 %) .5 to 5000 Hz .5 to 5000 Hz
Resonant Frequency >50 kHz >50 kHz
Broadband Resolution (1 to 10000 Hz) 0.01 g rms 0.10 m/s² rms [1]
Non-Linearity ≤1 % ≤1 % [2]
Transverse Sensitivity ≤5 % ≤5 %
Environmental
Overload Limit ±5000 g pk ±49033 m/s² pk
Temperature Range -65 to 250 °F -54 to 121 °C
Temperature Coefficient of Sensitivity ≤0.02 g/°F ≤0.35 m/s²/°C
Base Strain Sensitivity 0.04 g/µε0.40 (m/s²)/µε[1]
Electrical
Excitation Voltage 18 to 30 VDC 18 to 30 VDC
Constant Current Excitation 2 to 20 mA 2 to 20 mA
Output Impedance (@4mA) ≤150 Ohm ≤150 Ohm
Output Bias Voltage 8 to 12 VDC 8 to 12 VDC
Discharge Time Constant .5 to 2 sec .5 to 2 sec
Settling Time (within 10% of bias) <5 sec <5 sec
Spectral Noise (1 Hz) 2000 µg/√Hz 19620 (µm/sec2 /√Hz [1]
Spectral Noise (10 Hz) 450 µg/√Hz 4415 (µm/sec2 /√Hz [1]
Spectral Noise (100 Hz) 100 µg/√Hz 981 (µm/sec2 /√Hz [1]
Spectral Noise (1 kHz) 50 µg/√Hz 491 (µm/sec2 /√Hz [1]
Electrical Isolation (Case) ≥200 MOhm ≥200 MOhm
Physical
Size (Height) .41 in 10.4 mm
Weight (with cable) 3.2 oz 90.7 gm [3]
Sensing Element Quartz Quartz
Sensing Geometry Shear Shear
Housing Material Stainless Steel Stainless Steel
Sealing Welded Hermetic Welded Hermetic
Size (Length x Width) 1.22 in x .84 in 31.0 mm x 21.3 mm
Cable Termination Blunt cut Blunt cut
Cable Length 120 in 3048 mm
Cable Type 042 2-cond
Shielded 042 2-cond Shielded
Mounting Through Hole Through Hole
Optional Versions (Optional versions have identical specifications and accessories as listed
for standard model except where noted below. More than one option maybe used.)
Notes
[1] Typical.
[2] Zero-based, least-squares, straight line method.
[3] Estimated value.
[4] See PCB Declaration of Conformance PS023 for details.
Supplied Accessories
42489-01 Bushing, 3/16" ID (1)
42489-02 Bushing, 1/4" ID (1)
Entered: LLH Engineer: MO Sales: LLH Spec Number:
Date:
11/03/2009 Date: 10/26/2009 Date: 11/03/2009 42544
3425 Walden Avenue
Depew, NY 14043
UNITED STATES
Phone: [phone]
Fax: [phone]
E-mail: [email protected]
Web site: www.pcb.com

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.