B&K 2250 Light Manual do Utilizador descarregar pdf (Página 113)

CHAPTER 9

Updating and Upgrading Applications, Maintenance, Calibration and Troubleshooting

101

9.4.2 SD/CF Cards and USB Sticks

The Logging, Enhanced Logging and Signal Recording software requires that measurements

are saved on memory cards – SD or (with hardware versions 1 – 3) CF. A USB memory stick

can be used from hardware version 4.

Device Format and Speed

In order to ensure reliable operation with the memory device, the format of the file system and

the speed of the device are tested. Upon insertion, the analyzer verifies the format of the

memory device’s file system. If the file system is not optimal for usage with the analyzer, then

you are prompted to format it. You will be guided through the process.

When the format of the file system has been accepted, then the speed of the device is tested.

The test writes data to the device and measures the writing speed. The test takes less than a

minute. If the speed test is successful, then you can proceed using the device, otherwise you

should use another memory device or try reformatting the device (if not done already).

Problems with Storing or Recalling Data

If you experience problems in storing or recalling data on the memory device, 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 the analyzer.

2) You will be notified that a memory device has been inserted – select Yes to change the

default measurement path toit.

3) Tap the Main Menu icon and then Explorer.

4) Tap the icon to go up folder levels until you have reached the topmost level with a list

of the available memory devices.

5) Tap 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 memory device was OK

or that errors have been fixed.

Note: The checking procedure can take several minutes, depending on the size of the 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 analyzer during the procedure – this

might damage the file system and data and make the device unusable.

Note 1: The formatting procedure can take several minutes – depending on the size of the device.

Note 2: The read/write performance of SD and CF memory cards and USB sticks varies a

lot. The performance depends on the manufacturer of the memory device, the type of device, the

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B&K 2250 Light Manual do Utilizador Página 113