How do I calibrate my vibration meter?

Similar to your noise meter, your vibration meter will need to have a formal calibration carried out every 18-24 months – please contact sales@svantek.co.uk It is also possible to carry out a field calibration with the SV111 or SV110 vibration calibrator depending on the type of accelerometer you are using. The latest version of ISO8041 specifies field calibration procedures.

How big a USB memory stick can I use with the USB host facility of 95x series instruments?

In general, the larger the USB memory, the larger the current requirements, and the slower the speed of the memory. The Svan 95x are low power devices, so have an (intentionally) limited supply of power to the USB host. Therefore, we recommend that the maximum memory size is 4GB, as this provides the best compromise between power, speed and capacity. Larger memory sizes may work perfectly well, but we can’t guarantee it.

Also, we recommend good brands such as Kingston, rather than supermarket own-brand.

So why should I choose the Svan958A over the SV106A?

If you want to measure noise, have remote communications and measure dominant frequency, then Svan 958A is the best choice.

Does the SV106A do FFT?

No, but 1/1 and 1/3 octave options are available

Does the SV106A do PPV and VDV at the same time?

Yes, each channel has two profiles, so you can measure unweighted PPV and weighted VDV at the same time

What about the SV106A? Can I use that for ground vibration?

Yes, the 106 is a six channel instrument so two triaxial locations can be measured

Can the Svan958A measure Vibration Criteria?

Yes, with the normal SV84(SV207B) triaxial accelerometer, and 1/3 octaves installed, you can measure VC-A to VC-D, but for measurements to VC-E and NIST-A, we recommend using a 10V/g accelerometer instead, as that gives you more headroom over the noise floor. Typically, three accelerometers are mounted orthogonally in an SA217 block – ask for details.

Can the Svan958A measure according to the criteria in BS7385?

Yes, if the FFT option is installed, then PPV and dominant frequency can be stored and displayed correctly in SvanPC++ with the threshold criteria.

Can I trigger from a vibration event and send an email/SMS?

Yes, if the 958A is equipped with a serial interface and modem (options), then two trigger levels are available on each channel, typically used for warning and alarm levels.

Can I measure noise at the same time as triaxial vibration on the SV958A?

Yes – we use channels 1-3 for vibration, and channel 4 can be used for noise measurements to Class 1 accuracy. Measurements include Leq and Ln as standard, and spectra (if option installed)

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