Sipper Calibration; Function Key - thermo spectronic Helios Gamma Benutzerhandbuch

Sipper Calibration

This calibrates the SuperSipper to take account of variations in pump and
uptake tubing and sample viscosities. A volume is set and using the appropriate
solvent and tubing several sips are performed. The actual volume sipped is
entered and a calculation done to produce a calibration factor. This factor is
then used to adjust the pumping time to ensure that the correct volume of
sample is always used.
Details of the calibration used are displayed on the SIPPER CALIBRATION page.
CALIBRATE SIPPER Page
*
CALIBRATE
NOMINAL VOL.
NO. SIPS DONE
The sipper will pump a sample and the spectrophotometer will issue a beep.
Withdraw the measuring cylinder and the sipper will pump the air gap. The values
used for sample volume and air gap are those set on the SIPPER page.
Repeat this process for a number of cycles up to a maximum of 10 then press
ENTER.
Measure the total volume taken from the measuring cylinder and enter this. The
calibration will be displayed.

FUNCTION KEY

SIPPER PAGE
SIPPER CALIBRATION Page
*
SIPPER
25/10/96
NOMINAL VOL.
NO. SIPS DONE
TOTAL VOL SIPPED
TUBING CAL
FUNCTIONS KEYS
SIPPER PAGE
CALIBRATE
46
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SUPERSIPPER
SIPPER *
: 1.000 ml
: 5
Returns to the SIPPER page and abandons the calibration.
CALIBRATION *
16:47
: 1.000 ml
: 5
: 5.100 ml
: 1.020
Returns to the SIPPER page.
Starts the calibration procedure.
English
Using the solvent and tubing which will
be used for the sample solutions offer
a measuring cylinder filled to the
highest gradation to the sipper uptake
tube and press the switch plate.
This page displays the current sipper
calibration.
To alter the calibration, press
CALIBRATE
GD Issue 1 (08/2000)