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Summary of Contents for M356A71

Page 1: ...t 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 716 684 0987 E mail info pcb com Web www pcb com ...

Page 2: ...ialized 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 Returning Equipment If factory repair is required our representatives ...

Page 3: ...ation 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 Use standard safety precautions to avoid personal contact with this voltage This symbol on the unit indicates that the user should refer to the operating instructions located in the manual This symbol indicates safety ea...

Page 4: ...E 住房 O O O O O O PCB板 X O O O O O 电气连接器 O O O O O O 压电晶体 X O O O O O 环氧 O O O O O O 铁氟龙 O O O O O O 电子 O O O O O O 厚膜基板 O O X O O O 电线 O O O O O O 电缆 X O O O O O 塑料 O O O O O O 焊接 X O O O O O 铜合金 黄铜 X O O O O O 本表格依据 SJ T 11364 的规定编制 O 表示该有害物质在该部件所有均质材料中的含量均在 GB T 26572 规定的限量要求以下 X 表示该有害物质至少在该部件的某一均质材料中的含量超出 GB T 26572 规定的限量要求 铅是欧洲RoHS指令2011 65 EU附件三和附件四目前由于允许的豁免 CHINA RoHS COMPLIANCE ...

Page 5: ... O Wires O O O O O O Cables X O O O O O Plastic O O O O O O Solder X O O O O O Copper Alloy Brass X O O O O O This table is prepared in accordance with the provisions of SJ T 11364 O Indicates that said hazardous substance contained in all of the homogeneous materials for this part is below the limit requirement of GB T 26572 X Indicates that said hazardous substance contained in at least one of t...

Page 6: ... F 482 C and extreme application up to 100 F 650 C for UHT 12 These accelerometers are ideal for structural testing machine monitoring and vehicular shock and vibration measurement tasks where high temperatures preclude the use of accelerometers with built in microelectronics Enclosed is a Specification Sheet which lists the complete performance characteristics of the particular accelerometer 3 0 ...

Page 7: ...surface consider adhesive mounting as a possible alternative Inspect the area checking that there are no burrs or other foreign particles interfering with the contact surface STEP 2 Wipe clean the mounting surface and spread on a light film of grease oil or similar coupling fluid prior to installation Figure 3 Mounting Surface Lubrication Adding a coupling fluid improves vibration transmissibility...

Page 8: ...for most applications It is generally used only for machinery monitoring and other portable trending applications Both the accuracy and repeatability at low 5 Hz and high frequency 1 kHz ranges are questionable 5 0 CABLING Care and attention to installation is essential as the reliability and accuracy of your system is no better than that of the output cable Charge mode sensors require the use of ...

Page 9: ...to a precise sensitivity such as 10 0 or 100 0 mV g for ease of data analysis This is accomplished with most PCB laboratory charge amplifiers and some miniature in line units as well For fixed sensitivity in line charge converters such as the PCB Series 422 the system sensitivity mV g is determined as the product of the charge amplifier sensitivity mV pC and the charge sensitivity of the accelerom...

Page 10: ...edure themselves While this may result in both a savings of time and money it has also been attributed to incorrect readings and costly errors Therefore in an effort to prevent the common mistakes associated with customer performed calibration this document includes a broad overview of the Back to Back Calibration technique This technique provides a quick and easy method for determining the sensit...

Page 11: ...2 Figure 12 Typical Calibration Set Up Adhesively mounted sensors use similar practices However in this case a small portion of quick bonding gel or similar temporary adhesive is used to attach the test sensor to a reference standard designed with a smooth flat mounting surface In addition to mounting the selection of the proper equipment is critical Some of the more important considerations inclu...

Page 12: ...rs Incorrect Understand Back to Back Calibration limitations Do not expect the uncertainty of calibration to be any better than 2 In fact the uncertainty may be as high as 3 or 4 for frequencies 10 Hz or 2 kHz Since large sensors may affect high frequency accuracy verify that the test sensor does not mass load the reference standard Validate your calibration system with another accelerometer prior...

Page 13: ...erwise 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 M Metric Mount Supplied Accessory Model M039A22 Allen ...

Page 14: ...IONS METRIC DIMENSIONS IN BRACKETS 4 RECOMMENDED MOUNTING TORQUE 2 5 FOOT POUNDS 3 7 NEWTON METERS MOUNTING HOLE PREPARATION 218 5 54 X 300 7 62 MIN 1 4 28 UNF 2B X 200 5 08 MIN F M6 X 0 75 M6 X 1 00 M8 X 1 25 MOUNTING INSTRUCTIONS ENGLISH DIMENSIONS IN BRACKETS 4 RECOMMENDED MOUNTING TORQUE 3 7 NEWTON METERS 2 5 FT POUNDS M8 X 1 25 MOUNTING HOLE PREPARATION 6 75 266 X 8 64 340 MIN M8 X 1 25 6H X ...

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