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System is designed in a way that further attempts of an update can be perfor-
med if current update fails (power outage, manual abort of update etc). By
this, functionality can be brought back to instrument if a current update failed.
Important!
•
SD-card must remain in the instrument until update process has been
completed!
•
Once update has been performed, „Firmware uploaded successfully" mes-
sage must appear. If not, repeat update process.
12.5 Brightness of Background Illumination
To change brightness of background illumiation, go to „System settings" ->
„Maintenance" -> „Display settings" -> „Backlight brightness".
12.6 Select PC Interface
By default, USB interface is activated to connect then LabMaster-aw neo to a
PC. If a connection by RS-232 is necessary, interface can be changed in „Sys-
tem ysettings" -> „Maintenance" -> „Interface for computer connection".
12.7 Help System
The LabMaster-aw neo is equipped with an online help system, accessible on
the instrument. Once help or further explanation to a menu point is needed,
press the button with yellow circle and blue question mark in it. Help info will
pop-up and provide further details about a specific option or menu point.
13. Maintenance
The following chapter describes the main maintenance task which can be per-
formed by the user himself.
13.1 Cleaning of the Instrument
Just use a soft tissue and pure water to clean the instrument. If necessary use
mild detergents in addition. NEVER use cleaners containing aggressive and/or
oxidizing chemicals . Make sure the chamber is thoroughly dried after cleaning
to avoid wet residuals and hence influence consecutive water activity measu-
rements. If the outer parts need to be cleaned, be aware that some areas of
the instrument are not sealed and water can enter. Best way is to use a wet
tissue as well to remove dirt and dust.
Important!
Before cleaning, switch off the LabMaster-aw neo and disconnect it from the
mains.
13.2 Cleaning the aw-measurement cell
Please do NEVER clean the sensor itself, neither the grey protection filter in
front of it. The sensor is a very sensitive element with a protection filter on
top. Every cleaning (touching, use of pressurized air, cleaning detergents,
scratching etc.) will destroy the measuring sensor inevitably. Possible warranty
claims expire instantly.
13.3 Cleaning the Infrared „IR" sensor
Clean the IR sensor with a humid swab. Pay attention to not applying strong
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