B&K 2250 Light, Руководство пользователя

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2250 Light – User Manual
Press the Accept pushbutton to update the software. This will take approximately
5 minutes.
WARNING: Do not remove the CF-card while updating the 2250 Light software!
When the 2250 Light software has been updated, you will get the option of resetting to
the default settings.
If the problem still persists, then you should contact your local Brüel & Kjær representative.
9.4 Services at Brüel & Kjær for Type 2250 Light
9.4.1 Accredited Calibration
For Type 2250 Light, you can order accredited calibration and choose between DANAK,
A2LA, UKAS, Eichamt (Austria), RvA, ENAC, NATA and Inmetro.
For Spain, Primitiva is available.
The calibration will be performed in an ISO 17025 certified laboratory.
9.4.2 Initial Calibration
To start the measurement history from day one – if this is required, for example, for measurement
use in public, for customer audit or quality procedures – we recommend you order accredited
calibration together with the new instrument.
9.4.3 Regular Recalibration
To fulfil requirements for public measurements and to minimise the cost of errors due to faulty
or inaccurate measurements, we can arrange for calibration every year in an ISO 17025
certified laboratory at Brüel & Kjær. With annual data, you will have an unbroken history to
use as reference, either for internal requirements, for audit required by authorities or at the
request of your customers. And not least, you can follow the history of sensitivity for your
instruments over time.
9.4.4 Filter Calibration
• You can order calibration of filters. Please specify at the time of ordering.
• Calibration of filter response for octave and 1/3-octave filters according to IEC 61260.
9.4.5 Service and Repair
The hand-held analyzer is designed and constructed to provide many years of reliable
operation. However, if a fault occurs that impairs the analyzer’s correct function, then remove
the battery pack and disconnect any external power supply to prevent risk of further damage.
For more information about preventing faults or damage to your sound level meter, see
section 9.5.