RADWAG BALANCES 3Y SERIES - Manual (Page 44)

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ONLINE – selecting this option downloads current air density value
from a connected THB sensor, if such is connected to the balance,
or from internal sensor installed in the balance.
If a balance features both types of sensors (THB module and
internal sensor), then data from the THB module supersedes the
other, and parameters Setup/Ambient Conditions/Ambient
Conditions Module require setting to SAVE or SAVE & ALERTS
mode.
If a balance features only one type of the sensors for temperature,
humidity and pressure recording, then correct ONLINE operation
requires setting of balance parameters:
− Internal sensors only - Setup/Ambient Conditions/Ambient
Conditions Module set to NONE,
− External THB module only - Setup/Ambient
Conditions/Ambient Conditions Module set to SAVE or
SAVE & ALERTS mode.
Additionally, for correct balance cooperation with the THB module
set port’s transmission parameters to compatible with those of the
THB module. the THB module transmission parameters are detailed
on its data plate.
On returning to the weighing mode, the display indicates an additional symbol
<
! >, as indicated on below drawing.From now on the value of indicated mass
is corrected including the air buoyancy compensation factor and sample
density.
The measurement result can only be compensated by a correct value if an
operator inserts to balance’s memory the actual value on the air density and
correct density of weighed sample.
Caution:
If the <AIR BUOYANCY COMPENSATION> mode is set to <ONLINE> value,
then balance display does not indicate pictogram <!> which means that
parameter Setup/Ambient Conditions/Ambient Conditions Module is
set to SAVE or SAVE & ALERTS mode, and there is no physical connection
between a balance and a THB module, or the parameters for communicating
the module with the balance are set incorrectly. In such case plug a THB
module to balance’s ports COM 1 or COM 2 and set appropriate cooperation
parameters, such as specified on module’s data plate.