Clear Reading Memory
The ‘Clear Reading Memory’ function enables the user to check how many readings have previously
been taken and clear them if necessary.
Note: Before readings are actually deleted a caution message is displayed; once readings have
been deleted they cannot be recovered.
The instrument can store up to 1000 readings. The reading structure is fixed and may contain optional
parameters not activated for your particular instrument configuration, i.e. oxygen, temperature and
humidity.
Once the reading memory is full it is not possible to store any more readings. When full and the
‘Store’ key is pressed or data logging is activated the instrument will show a brief message stating that
the memory is full and that no further data will be recorded.
From the ‘Main Read Screen’ press the ‘Menu’ key on the instrument panel.
Press ‘Key 4’ to view data.
To clear the readings press the soft-key ‘More’ followed by ‘Key 1 - Delete all’.
Diagnostics
The ‘Diagnostics’ option enables QED Technical Support to identify and resolve issues with the
instrument and readings. If required, the operator may be asked to confirm the diagnostics displayed.
From the ‘Main Read Screen’ press the ‘Menu’ key on the instrument panel.
Press ‘Key 5’ to view diagnostics.
Note: For further information contact Technical Support at QED on +44(0)330 800 0088 or email
technical@qedenv.co.uk.
Warning and Error Codes
When switched on the instrument will perform a predetermined self-test sequence taking
approximately 30 seconds. During this time many of the instrument’s working parameters and
settings are checked. If any operational parameters are out of specification or if the pre-programmed
recommended calibration/service date has passed, errors or warnings may be displayed.
Note: For further information please refer to section Problem Solving of this manual.
Battery/Charging
Note: Fully charge the unit before use when the instrument is first received or if the instrument
has been in storage for six months or more.
The battery used in the instrument is 2.6 Ah Lithium-Ion cell. The instrument must be charged using
the power supply supplied with your instrument. The power supply supplied is intended for indoor
use only. Please ensure adequate ventilation whilst charging.
Note: The instrument cannot be powered or charged via the USB connector.
Note: When plugged into the power supply the instrument will power on and display charging.
When complete the display will change to show that the instrument is charged. To switch the
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