Maintenance; Service; Calibration; Check Instrument Status - TESTO 300 LL NEXT LEVEL Instruction Manual

10 Maintenance

10 Maintenance
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10.1 Service

Testo recommends an annual check of the testo 300 NEXT LEVEL; this
can be carried out by a Testo-authorised service centre. Please contact
Testo at http://www.testo.com for more information.
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10.2 Calibration

The measuring instrument is supplied with a calibration protocol as
standard. To maintain the specified accuracy of measurement results,
Testo recommends an annual check of the testo 300 NEXT LEVEL by a
Testo-authorised service centre.
Please contact Testo at http://www.testo.com for more information.

10.3 Check instrument status

10.3.1 Sensor diagnosis

The status of the sensors can be displayed.
To replace expended sensors, see Section "Replace sensors".
Call up function:

Sensor diagnosis is displayed.
A sensor is able to recover. It is therefore possible for the sensor status
display to change from not OK to OK.

10.3.2 Error list

Instrument errors that have not yet been rectified can be displayed.
Call up function:

Error list is displayed if there are errors present.

10.4 Clean the measuring instrument

> If the housing of the measuring instrument is dirty, clean it with a damp
cloth.
Use distilled water or a weak solvent to clean the flue gas analyzer.
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Sensor Diagnosis
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Error list
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