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PCB Piezotronics EX357E92 Operating Manual

PCB Piezotronics EX357E92 Operating Manual

Piezoelectric charge mode accelerometers

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Repair and Maintenance
PCB guarantees Total Customer Satisfaction through its
"Lifetime Warranty Plus" on all Platinum Stock Products
sold by PCB and through its limited warranties on all other
PCB Stock, Standard and Special products. Due to the
sophisticated nature of our sensors and associated
instrumentation, field servicing and repair is not
recommended and, if attempted, will void the factory
warranty.
Beyond routine calibration and battery replacements
where applicable, our products require no user
maintenance. Clean electrical connectors, housings, and
mounting surfaces with solutions and techniques that will
not harm the material of construction. Observe caution
when using liquids near devices that are not hermetically
sealed. Such devices should only be wiped with a
dampened cloth—never saturated or submerged.
In the event that equipment becomes damaged or ceases
to operate, our Application Engineers are here to support
your troubleshooting efforts 24 hours a day, 7 days a
week. Call or email with model and serial number as well
as a brief description of the problem.
Calibration
Routine
calibration
of
instrumentation is necessary to maintain measurement
accuracy. We recommend calibrating on an annual basis,
after exposure to any extreme environmental influence,
or prior to any critical test.
PCB Piezotronics is an ISO-9001 certified company whose
calibration services are accredited by A2LA to ISO/IEC
17025, with full traceability to SI through N.I.S.T. In
addition to our standard calibration services, we also offer
specialized tests, including: sensitivity at elevated or
cryogenic temperatures, phase response, extended high
or low frequency response, extended range, leak testing,
hydrostatic pressure testing, and others. For more
information, contact your local PCB Piezotronics
distributor, sales representative, or factory customer
service representative.
Manual 21354 Rev E
ECN 50523
sensors
and
associated
Returning Equipment
If factory repair is required, our representatives will
provide you with a Return Material Authorization (RMA)
number, which we use to reference any information you
have already provided and expedite the repair process.
This number should be clearly marked on the outside of
all returned package(s) and on any packing list(s)
accompanying the shipment.
Contact Information
PCB Piezotronics, Inc.
3425 Walden Ave.
Depew, NY14043 USA
Toll-free: (800) 828-8840
24-hour SensorLine: (716) 684-0001
General inquiries:
info@pcb.com
Repair inquiries:
rma@pcb.com
For a complete list of distributors, global offices and sales
representatives, visit our website, www.pcb.com.
Safety Considerations
This product is intended for use by qualified personnel
who recognize shock hazards and are familiar with the
precautions required to avoid injury. While our equipment
is designed with user safety in mind, the protection
provided by the equipment may be impaired if equipment
is used in a manner not specified by this manual.
Discontinue use and contact our 24-Hour Sensorline if:
Assistance is needed to safely operate equipment
Damage is visible or suspected
Equipment fails or malfunctions
For complete equipment ratings, refer to the enclosed
specification sheet for your product.
Definition of Terms and Symbols
The following symbols may be used in this manual:
DANGER
Indicates an immediate hazardous
situation, which, if not avoided, may
result in death or serious injury.

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Summary of Contents for PCB Piezotronics EX357E92

  • Page 1  Assistance is needed to safely operate equipment  PCB Piezotronics is an ISO-9001 certified company whose Damage is visible or suspected  calibration services are accredited by A2LA to ISO/IEC Equipment fails or malfunctions 17025, with full traceability to SI through N.I.S.T.
  • Page 2 CAUTION Refers to hazards that could damage the instrument. NOTE Indicates tips, recommendations and important information. The notes simplify processes and contain additional information on particular operating steps. The following symbols may be found on the equipment described in this manual: This symbol on the unit indicates that high voltage may be present.
  • Page 3 PCB工业监视和测量设备 - 中国RoHS2公布表 PCB Industrial Monitoring and Measuring Equipment - China RoHS 2 Disclosure Table 有害物质 镉 汞 铅 (Pb) 六价铬 (Cr(VI)) 多溴联苯 (PBB) 多溴二苯醚 (PBDE) 部件名称 (Hg) (Cd) 住房 PCB板 电气连接器 压电晶体 环氧 铁氟龙 电子 厚膜基板 电线 电缆 塑料 焊接...
  • Page 4 Component Name Hazardous Substances Lead (Pb) Mercury (Hg) Cadmium (Cd) Chromium VI Polybrominated Polybrominated Compounds Biphenyls (PBB) Diphenyl Ethers (Cr(VI)) (PBDE) Housing PCB Board Electrical Connectors Piezoelectric Crystals Epoxy Teflon Electronics Thick Film Substrate Wires Cables Plastic Solder Copper Alloy/Brass This table is prepared in accordance with the provisions of SJ/T 11364.
  • Page 5 General OPERATING GUIDE for use with PIEZOELECTRIC CHARGE MODE ACCELEROMETERS SPECIFICATION SHEET, INSTALLATION DRAWING AND CALIBRATION INFORMATION ENCLOSED PCB ASSUMES NO RESPONSIBILITY FOR DAMAGE CAUSED TO THIS PRODUCT AS A RESULT OF PROCEDURES THAT ARE INCONSISTENT WITH THIS OPERATING GUIDE. 1.0 INTRODUCTION Enclosed is a Specification Sheet, which lists the Congratulations on the purchase of a quality PCB charge...
  • Page 6 upon the coupling type or time constant of the external charge amplifying device. This characteristic may be precision-machined mounting surface with in (0.00016 fixed or adjustable, depending on the charge amplifier. minimum finish Please refer to the appropriate charge amplifier recommended.
  • Page 7 METHOD 1 - Adhesive Mounting Base This method involves attaching a base to the test structure, then securing the sensor to the base. This allows for easy removal of the accelerometer. Also, since the bases are of a “hard-coated” aluminum design, they provide electrical isolation to eliminate ground loops and reduce electrical interference that may be present on the surface of the test object.
  • Page 8: Accelerometer Calibration

    pins.) In many cases, it is also helpful to protect the Once each element is connected, allow a few minutes for solder joint with heat-shrink tubing or epoxy. the system to thermally stabilize. Place the switch on the charge amplifier in the OPERATE position and Note: If you do not have the experience or resources to proceed with the measurement.
  • Page 9: Sensor Recalibration

    For these reasons, it is recommended that a recalibration cycle be established for each accelerometer. This schedule is unique and is based on a variety of factors, such as extent of use, environmental conditions, accuracy requirements, trend information obtained from previous calibration records, contractual regulations, frequency of “cross-checking”...
  • Page 10: Common Mistakes

    Figure 11. Typical Test Accelerometer Response 7.3 PCB CALIBRATION PROCEDURE Numerous precautions are taken at PCB to insure accurate and repeatable results. This section provides a brief overview of the primary areas of concern. Since the Back-to-Back Calibration technique relies on Figure 12.
  • Page 11 along the axis of motion, as the mounting stiffness may be altered. The vibration at the test sensor sensing element may differ from the vibration at the reference standard due to a “cantilever” effect, seen in Figure 15. Figure 13. Stud Mounting For adhesive mount sensors, use a thin, stiff layer of temporary adhesive such as quick-bonding gel or superglue.
  • Page 12: Supplied Accessories

    Model Number CHARGE OUTPUT ACCELEROMETER Revision: A EX357E92 ECN #: 49874 Performance ENGLISH OPTIONAL VERSIONS Sensitivity(± 10 %) 2.3 pC/g 0.23 pC/(m/s²) Optional versions have identical specifications and accessories as listed for the standard Measurement Range ± 1000 g pk ±...
  • Page 13 PCB Piezotronics Inc. claims proprietary rights in REVISIONS the information disclosed hereon. Neither it nor any reproduction thereof will be disclosed to others DESCRIPTION without the written consent of PCB Piezotronics Inc.  .196 THRU EX357E92 WAS 357E92 49874 ...