The 480C02 is an ICP vibration transducer power supply. By itself, the 480C02 is not capable of calibrating vibration transducers. However it can serve as one of the pieces of instrumentation in the calibration process. Piezoelectric vibration sensors are calibrated using the back-to-back method outlined in ISO 16063-21. This method involves a shaker and reference accelerometer. The sensor under test is mounted back-to-back with the reference accelerometer such that both transducers experience the same vibration from the shaker. The 9210D in the video is a portable vibration calibrator with a shaker inside the case and reference accelerometer.

@@TheModalShop I'm sorry, I didn't explain correctly. I have a C9110D, but I have only calibrated the accelerometers models 330400 and 177230 at this moment. I have two sensors: EX607A61 and EX607A01 and I have doubts about whether I need to use a C9110D with 480C02 to calibrate the ICP sensors and how to use it.

@@wansimateos5367 Thanks for the clarification. The Bently Nevada 190501 is the only 2-wire ICP vibration transducer that we know of that requires the 480C02 ICP power supply rather than the ICP power supply inside of our 9110D series of calibrators. For all other ICP sensors, such as the EX607A61 and EX607A01, the ICP power provided by any 9110D series Portable Vibration Calibrator will work just fine.

@@TheModalShop Thank you very much <3

We're glad you found it helpful!

Hello, thank you for your question! The portable vibration shaker tables are mechanical calibration devices, so the sensor must be removed and mounted to the shaker or, in the case of a proximity probe, mounted over the shaker with the tip directed toward a target of proper materials.

Hi Kiya, our products are designed to measure the kind of hazardous vibrations that occur with operating machinery in workplace environments and are suitable for measuring according to occupational safety regulations. We are sorry that you are experiencing this frustrating problem and we hope you can connect with someone who can help!

Thank you for your interest! Please see www.modalshop.com/digital-sensing/pages/digital-contact-an-expert . There, you can get in touch with your local sales team for a quote.

No, it is a proprietary electronic design that uses the open USB Class 1 Audio protocol to enhance compatibility and simplify acquiring quality sensor data.

@@accumetrics6169 Thanks for the reply

Thank you for your interest. Recently, we have added an included USB Type A to C adapter as a standard accessory. It is an Anker A8731. www.anker.com/ca/products/b8731 Unfortunately, we are not aware of compatible balancing software for Microsoft Windows. Detailed instructions will depend on the selected software package. There is a general quick start guide for Windows at www.digiducer.com/products/digital-usb-accelerometer/quick-start. Feel free to fill out the Contact an Expert form on our website, and one of our Application Engineers will get back to you with more details.

Digital ICP-USB Signal Conditioner Model 485B39 is supported by a variety of third party applications. Many of these applications support trigger initiated acquisitions. Generally, first decide on the device you would like to use (laptop, phone, tablet, etc.). Next, examine the features of the applications that are developed for those platforms to make sure they have the desired functionality. For example, some applications support general purpose dynamic signal analysis while others are focused on the specific needs of machine condition monitoring. Feel free to contact The Modal Shop to discuss your specific acquisition needs and data analysis as well as which sensors and host computer you are wanting use. We can provide more specific recommendations on the applicable software applications. Find us at www.modalshop.com/digital-sensing/products/usb-signal-conditioner and give us a call or click the Contact an Expert button.

The Digital ICP USB Signal Conditioner communicates using the USB Class 1 audio protocol. So, it can interface to a microcontroller that supports USB host mode and implements the USB Host Class 1 USB Audio driver. Boards using Linux, like Raspberry Pis, generally have USB audio drivers available, while Arduino family boards generally do not.

can you give me the tutorial how to connect it to raspberry pi?@@TheModalShop

We offer a basic discussion of using our Digiducer USB Digital Accelerometer with a Raspberry Pi here www.modalshop.com/digital-sensing/learn/digital-sensing-basics/raspberry-pi. Digital ICP-USB Signal Conditioner works in a similar fashion. In addition, you can check out our GitHub repositories found here github.com/Digiducer. Please get in touch with our team here www.modalshop.com/digital-sensing/pages/digital-contact-an-expert for answers to your specific questions.

Yes - thank you for your interest! The Modal Shop offers a Digital Vibration Meter Kit, which includes the Digiducer accelerometer, an adaptor for your smartphone, and free app download. Please take a look at the webpage www.modalshop.com/digital-sensing/products/vibration-meter-kit and reach out if you want to learn more.

Hello, thank you for your interest in the Portable Vibration Calibrator. The PVC used in this demonstration, Model 9210D, offers a maximum amplitude of 2 g pk. Portable Vibration Calibrator Model 9110D offers a maximum amplitude of 20 g pk. Actual amplitude depends on sensor mass. Please reach out to our team if you have further questions by filling out the form found here: www.modalshop.com/industrial-vibration/pages/contact-an-expert

The nice thing about moving coil vibration sensors is they are self-generating. You do not need a power supply. You can connect them directly to a volt meter to read the sensitivity. To begin, it helps to know the scale of the sensor. But it is not required. If you know the scale is in mV/micron/sec velocity you can use a shaker with a reference accelerometer that is shaking in that scale, like Modal Shop model 9100D. We recommend shaking in the microns/sec RMS scale. This way no conversion is required from peak to RMS or vice versa. We have not seen any shakers that offer microns/sec scale. Although there could be units available. The 9100D offers mm/sec scale. Thus if you wish to know the sensitivity in microns/sec you will need to convert from mm to microns. The most important thing: is the sensor under test supplying a consistent voltage at various frequencies? I.e. if we shake at 10, 50, 100, 300 and 500 Hz - and we hold the amplitude at 10 mm/sec RMS at each of those frequencies - does the mV output read by the volt meter change much? If the voltage read by the volt meter remains the same, within +/- 5%, we can safely state that this is the sensitivity of the sensor under test. If the output is changing a lot, then we might have the wrong scale. I.e. if the sensor is actually scaled in acceleration and not velocity the mV output will change significantly in this test.

Thank you for your response. The sensor used in this demonstration is PCB's Model 353B34 www.pcb.com/products?m=353b34. This accelerometer contains a quartz sensing element, which has excellent stability over time.

Please reach out to The Modal Shop at [email protected] with details of your calibration needs, referencing this KZbin video in your message. We would be happy to discuss!

@@TheModalShop Do you have the large shaker?

@@user-ed2kh3yp4m We offer a wide variety of shakers, from the Portable Vibration Calibrator shown in the video above to our newest 500 lbf Vibration Shaker Model 2500E www.modalshop.com/vibration-test/products/vibration-test-shakers/500-lbf-exciter. We'd be happy to discuss your needs. If you'll reach out to [email protected], we can get you to the right member of our team. Please mention this KZbin conversation in your email.

The statement within ISO 16063-21 that you are referencing is found within the “Uncertainty of measurement section”. Specifically, that statement regarding amplitudes at 1 Hz is found within the section that details the calibration requirements for the reference accelerometer used in a calibration system. It is part of a larger section discussing realistic amplitudes for electrodynamic vibration exciters and says “When measurements are performed at the lowest frequencies, the limiting factor is normally displacement. At 1 Hz, typical values for long-stroke vibrators are 1 m/s2 to 2 m/s2 r.m.s. acceleration or 0,1 m/s to 0,3 m/s r.m.s. velocity.” In short, if one wishes to achieve the “attainable uncertainties” noted in the table that closes the section, the recommended course of action is to use a long-stroke shaker to calibrate the reference accelerometer within the system. Since the 9210D is not a long-stroke shaker, one cannot use this shaker to calibrate the reference accelerometer that is part of a calibration system and expect to achieve the uncertainties stated in the standard. However, we do utilize a transfer standard calibrated on a long-stroke shaker to calibrate the 9210D before shipment. To briefly summarize, the relevant section of the ISO 16063-21 standard is providing guidelines on how to calibrate the reference accelerometer within a calibration system. The standard is not recommending that all low frequency calibrations occur at 1 m/s2 at 1 Hz.

It depends on the type of vibration switch. For example, the PCB 686C series vibration switch is small and mounts directly into the ¼-28 F hole. The PCB 685B series mounts using a 4-bolt plate manufactured by The Modal Shop. Each of these vibration switches is electronic. Mechanical vibration switch, like a “Murphy switch," are too heavy for the portable vibration calibrator. Find testable switches here www.pcb.com/products?m=686c01 and here www.pcb.com/products?m=685b0001a10

Thank you for your interest. You may request a quote here www.modalshop.com/vibration-test/products/vibration-test-shakers/smartshaker-integrated-amp or connect with your local sales office to learn more about pricing www.modalshop.com/contact.

I'm sorry. We are not a Bently Nevada representative. To obtain this information please contact Bently Nevada.

@@TheModalShop ok sir. Thank for reply sir.

Yes. Triaxial accelerometers are calibrated by testing the X, Y and Z axes individually. It is the same as a single axis accelerometer calibration done three times, rating the axis in between tests. Some triaxial accelerometers have secondary mounting holes to make testing the X and Y axes easier. If the sensor does not have these holes we recommend adhesive mount on a flat plate. We can supply the adhesive and plate as accessories. The 9100D is a shaker meant for testing a measurement channel or doing a “loop check.” Users who wish to create calibration reports will want to review model 9110D which has memory, accelerometer power and sensitivity display.

Please visit our website at www.modalshop.com/industrial-vibration/products/portable-shaker-tables/9100D-vibration-field-tester to connect with our team and get a quote.

Thank you for your interest in the Portable Vibration Calibrator Model 9210D. Please contact us at [email protected] for information on pricing. To learn more, please visit the web page www.modalshop.com/industrial-vibration/products/portable-vibration-calibrators/9210D-low-frequency-calibrator.

The weld cap is in reference to triaxial accelerometers in this case. Some axes may have to be adhesively mounted because they do not have a stud mount available. The weld cap is the circular ring that can be seen on the sides of the accelerometer where the circular cap is welded on to the sensor frame after assembly of the inside components are completed. These welded-on sides should not be glued down as they are not as strong as the corners of the sensor. Gluing onto the weld cap can excite the sensor resonances and/or damage the sensor. See the Adhesive Accelerometer Mounting video found at www.modalshop.com/calibration/learn/video-tutorials/accelerometer-calibration-mounting-tutorials for more information.

We used an app called SignalSuite by Faber Acoustical. But, any function generator app will work!

Thanks so much for pointing that out, Doug! :) You are correct, we meant to say 40-44Hz.

Thank you so much for watching! Could you please complete the below form and one of our friendly teammates will be in touch with pricing information :). www.modalshop.com/pages/contact-an-expert-social

How can we buy this?

Thanks so much for watching Akshay! Yes, the model 080A adhesive mounting base is used to connect the force sensor to the crankshaft. It is attached with a cyanoacrylate adhesive (super glue), typically Loctite 454. Please see the following link for the base: www.pcb.com/products?model=080A.

Thanks so much for your interest Prasanna! Could you kindly complete this form and one of our friendly experts will provide you with pricing information :). www.modalshop.com/pages/contact-an-expert-social

The primary use if the Digiducer - USB Digital Accelerometer is to measure vibration in acceleration units (e.g. m/s2). There are other sensors and techniques out there that are more suitable for measuring RPM directly (e.g. laser tachometers, proximity probes, encoders, etc). Here’s a good article about the topic: www.electronicsforu.com/tech-zone/test-measurement-electronics/rpm-measurement-sensors-techniques

The first step when troubleshooting a 74712 is to check the mounting angle. The sensor can be ordered for vertical mount, horizontal mount or 45 degree mount. If your sensor is vertical then the shaker can be used normally. If the sensor is horizontal then you will need to turn the shaker on its side. When doing so we recommend opening the lid of the shaker and then gently lying it on its side near the edge of a table or desk so that the lid can fall over the edge of the table. We also recommend mounting the sensor, gently, after the shaker is already it its side. If you apply the correct mounting angle one should obtain good results. But keep in mind that this moving coil technology is more prone to drift than piezoelectric. These sensors will drift out of tolerance over time.

Hi Alberto, thanks so much for your comment here! We received your email inquiry and one of our technical experts will be in contact soon :)!

Hi Rahim, we have several videos that can help with this question! The proximity probe is mounted over the shaker and then the sensitivity can be tested and a loop check performed. This video shows how to install the proximity probe adapter kit: kzbin.info/www/bejne/oIOxaYicmcqMo7M. This video discusses testing prox probe sensitivity and the issues with incorrect cable impedance: kzbin.info/www/bejne/aHaog4SGYr2pmtE. Finally, this video is a basic loop check video, but we did not have a 3500 to use in the video, nonetheless the concept is the same: kzbin.info/www/bejne/lZbHYYNshJWso6c

@@TheModalShop thanks.how much this devices?

@@rahimbabayev3767 Thanks so much for your interest! If you could kindly fill out this form: www.modalshop.com/industrial-vibration/pages/contact-an-expert one of our Technical Experts will provide you with pricing information :).

Hi Chris, we believe based on your feedback that the amplifier needs to be reset. One of our technicians has emailed you a procedure on how to do so. It should get you back up and running quickly. Sorry for the inconvenience. If you did not receive the procedure please contact us.

@@TheModalShop hi there, yes that is correct I have received that procedure via email and should know the beginning of next week if it has been successful. Thank you and Michael Scott for your continued support and excellent after care. Thanks, Chris

The ISO 16063-21 standard for the calibration of piezoelectric accelerometers does not specify that transducers should be calibrated at low amplitudes. As for the analyzer, we are not aware of any standards that provide guidance regarding the amplitudes at which they should be calibrated. Calibrating at low amplitudes would ensure that the analyzer is measuring real vibration input rather than the noise floor of the system. Shaker limitations may force lower amplitudes to be used. For example, portable shakers cannot generate significant velocity at higher frequencies and cannot generate significant acceleration at lower frequencies. Using a shaker with more stroke that is perhaps not “portable” would potentially give the user more amplitude in all vibration scales.

Thanks for watching Glenn!

We are so glad you found it helpful Glenn!

You are most welcome, Nanda!

Thank you so much Thais!

Thanks so much Muhammad! We are so glad you found it helpful!

We are so glad you found it helpful!

Yes. The shaker head should not be directly attached to the structure for modal testing. This would provide very poor frequency response measurements. If the shaker were to be directly attached to the structure, there would be significant dynamic effects of the shaker imposed onto the structure, resulting in a dramatically altered frequency response function. Basically, the stinger decouples the shaker system from the structure and applies force to the structure. The stinger is designed to be rigid in the axial direction and flexible in the lateral direction. Force transducers measure axial force but still transmit forces into the structure through the transducer’s stiff casing. Therefore, any side loads transmitted to the structure by the stinger through the force transducer are unmeasured and contribute noise on the measurement. A stinger that is properly designed, selected and aligned will reduce or eliminate this potential problem. For more information please check our shaker FAQ at: www.modalshop.com/excitation/Modal-Shaker-FAQ?ID=336.

Thank you for your interest, Mohamed. Please contact our TMS shaker experts for pricing at [email protected].

Thanks so much for watching Winai! Yes, flat top would have been better for amplitude linearity.

@@TheModalShop Thank you for your answer. In my opinion, I think that amplitude verification must be used in a Flat-top window because it has excellent accuracy for amplitude but if you verify the frequency, you can use the Hanning window.

Thank you so much! We are so glad you found it helpful!

A DMM is needed to measure the output of 4-20 mA vibration transmitters. You can also use the 9100-PS02 24 VDC power supply to power those transmitters. This video show how: kzbin.info/www/bejne/iJLZe2qepNh1pLM

@@TheModalShop Thanks

You are so welcome Paul! We are so glad you found it helpful!

Thanks so much for you inquiry Whirler! If you could kindly complete the below form or reach out to [email protected], one of our product experts will be able to help you with this! www.modalshop.com/request-quote.asp

Thank you so much for watching, Jose!

We are so glad you found it helpful, Mad!