TESTO 300 - 15 Maintenance; Service; Calibration; Check Instrument Status

15 Maintenance
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15 Maintenance
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15.1 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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15.2 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.
15.3 Check instrument status
15.3.1 Sensor diagnosis
The status of the sensors can be displayed.
To replace expended sensors, see Section "Replace sensors".
Call up function: | Sensor Diagnosis

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.
15.3.2 Error list
Instrument errors that have not yet been rectified can be displayed.
Call up function: | Error list

Error list is displayed if there are errors present.