B&K 2250 Light, User Manual, Page: 93 / 208

CHAPTER 9
Updating, Maintenance and Troubleshooting
83
Problems with Storing or Recalling Data
If you experience problems in storing or recalling data on memory devices, you can check and
repair the integrity of the file system on the device or even re-format it, by doing the following:
1) Insert the memory device in the correct slot of the connector panel of 2250 Light.
2) You will be notified that a device has been inserted – select Yes to change the default
measurement path to it.
3) Tap the Main Menu icon and then Explorer .
4) Tap on the icon to go up folder levels until you have reached the topmost level with a
list of the available memory devices.
5) Tap on the name of the device (not the icon) to get a list of available commands.
6) Select Check and Repair to start the procedure. If any errors are found in the file system,
they are fixed. When finished, you will be informed whether the device was OK or that
errors have been fixed.
Note: The checking procedure can take several minutes, depending on the size of the
memory device.
Formatting a memory device:
7) Select Format to start the formatting procedure.
WARNING: All data on the device will be erased during the formatting process.
WARNING: Do not remove the device or switch off the instrument during the procedure –
this might damage the file system and data, and make it unusable.
Note: The read/write performance of memory cards and USB memory sticks varies a lot. The
performance depends on the manufacturer of the device, the type of device, its size, how
much it has been used, how fragmented the memory is, and even the day of production. Two
‘identical’ devices can have a different performance because the manufacturer has
changed the internal technology without notice.
In general, as a rule of thumb, you should select memory devices aimed for the industrial
or professional photographer market.
The cards delivered by Brüel & Kjær have all been tested for their read/write performance
in a 2250 Light and can be used for the applications available in a 2250 Light. If you
need more (or other) types of memory devices, please consult your local Brüel & Kjær
representative.
Remember to regularly re-format the device (especially before a long unattended
measurement) – this will ensure the best performance.
8) Select Test Speed , if you want to check the device’s file speed.