Frequently Asked Questions

Some questions come up regularly.  Please see the list below for the most common questions we receive and their answers.  If you need more information, please check your product's Datasheet or Contact Us for help.

1. My accelerometer appears to be broken. When I place it on the desk with the lid facing up, it reads +1G. How do I fix this?

Silicon Designs MEMS capacitive accelerometers are designed to respond to the Earth’s gravity. If you are on Earth, then you are in a +1g gravitational field.  Turn the device over and you will see a -1g reading, which you can use to perform your own bias calibration of the device.


2. Do I need a charge amplifier, or signal conditioning, to use my Silicon Designs MEMS capacitive accelerometer module?

All Silicon Designs MEMS capacitive accelerometers feature integrated amplifiers, so an additional one is not required. Signal conditioning is optional.


3.  Are Silicon Designs plug-&-play MEMS capacitive accelerometer modules waterproof? What is their IP designation?
While all modules are considered weatherproof, only Models 2240 and 2480 may be used while submerged. We recommend the protection of the connector from exposure. Please  Contact Us   prior to use, and we'll walk you through the process. The IP designation of the other modules is IP61. 

 4. I am using my plug-&-play module in single-ended mode. What should I do with the unused wire?

Leave the wire disconnected. Do not connect the unused wire to ground, as you will overheat the device and cause premature accelerometer failure.

5. We have a Silicon Designs Model 2210 in our test lab that is now seven years old. Can you provide us a calibration sheet for it?

Silicon Designs maintains calibration records on file for ten years. However, we recommend that you return the device to us for factory recalibration, as 7-year-old calibration data may no longer be accurate, or useful.

6. I need to attach a label to the wiring of my accelerometer module, but it keeps sliding off. How do I properly attach a label?

The cable has a low-friction Teflon coating. The best way to attach the label is  therefore to glue the label directly onto the device's case.

7. Is it possible to re-calibrate my module? Do you adjust the accelerometer when you do this? How often should we do this?

We recalibrate modules all the time for customers using them for many years. We do not adjust the accelerometer; we just provide calibration data for its current state. You can have it calibrated anytime, but more than once a year or two might be excessive.  They rarely change much.


8. Are your parts RoHS compliant?

Surface mount accelerometers contain no lead. Modules contain a tiny bit of lead, but Silicon Designs products are permanently excluded from RoHS, as they are designed to be a part of another piece of equipment that falls under one or more of the following categories:

  • Military

  • Space

  • Large-scale industrial tools

  • Large-scale fixed installations

  • Means of transport for persons or goods

  • Non-road mobile machinery

  • Equipment for research and development, only available business to business