Jenway 7305 - Manual (Page 37)

To program an air gap remove the inlet tubing from the sample container and press the key adjacent to
the
single greater than icon. The sipper pump will start and air will be pumped through the tubing to
the flow through cell.
Once the required amount of air has been taken up press
the key adjacent to the
stop icon. The time taken for air
uptake is recorded.
To fine tune the amount of air uptake press the keys
below the
plus or minus icons to increase or decrease
the amount of air taken in. The recorded time will be
adjusted accordingly. Once the fine tuning is complete, or
if none is required, press the key adjacent to the
tick icon
to move to the next stage of the calibration sequence.
Once the sample uptake and air gap have been
programmed the preferred disposal of the sample can
be set. There are two options, the sample can either
be sent back to the sample container or it can be sent
to the waste pipe. Press the key below the
forward or
backward arrows to select what happens to the sample
after measurement.
If the original pump direction selected was forwards, selecting the forwards direction at this stage will
send the sample to waste and selecting the backwards direction will send the sample back to the sample
container. Once the required direction has been selected press the key adjacent to the
tick icon to save
the calibration sequence and return to the expanded operating menu. To exit the sipper calibration
sequence without saving any changes press the
back key at any point during the calibration sequence.
To perform a measurement place the sipper tubing into
the sample and press the key below the
sipper pump
icon.
Confirmation will be needed to start the sipper pump.
Press the key adjacent to the
cross icon to cancel and
return to the expanded operating menu. Press the key
adjacent to the
tick icon to confirm and start the sipper
pump. The pump will run for the previously recorded
sample take up time. Ensure that the flow through
cuvette contains enough sample before pressing the key
below the
measure sample icon.
0.000
100.0
400
09:02
ABS
%T
nm
0.000
100.0
400
09:02
ABS
%T
nm
37