thermo spectronic Helios Gamma Benutzerhandbuch Seite 15

FIXED
Instrument and analysis parameters are set up on the FIXED page. Move the
cursor to the required parameter using the Up/Down Arrow keys. Change the
parameter by pressing the ENTER key.
Once the method has been set up press ZERO/BASE to zero the instrument for
the current method (See page 5) and press RUN. The spectrophotometer will
perform a measurement and display the result on the FIXED RESULTS page.
FIXED METHOD Page
MODE
ID
λ SELECT
WAVELENGTH(S)
INTEGRATION
DELAY TIME
AUTOPRINT
CELL PROG
REF MODE
MODE
ABS
%T
CONC
CONC allows the result to be automatically multiplied by a factor to give
concentration measurements. If selected two further parameters are added to
the method, FACTOR and UNITS.
ID
λ SELECT
SINGLE λ This option is used to measure each sample at a single
wavelength which is the same for each sample.
MULTI λ This option allows each sample to be measured at up to 20
wavelengths, which are the same for each sample.
WAVELENGTH(S)
SINGLE λ Use the numeric key pad to enter the required wavelength into
the pop-up box. Press ENTER when finished.
MULTI λ Use the up and down arrow keys to move to the wavelength to
be entered or edited and press ENTER to display the edit box.
Use the numeric keypad to enter the wavelength and press
ENTER when finished. The instrument returns to the MULTI λ
screen with the next wavelength in the list highlighted. Up to 20
wavelengths may be entered. When the list is finished press the
ACCEPT function key to accept the new list or the CANCEL
function key to return to the FIXED METHOD page without
changing the wavelength list.
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FIXED
* FIXED *
: ABS
:
: SINGLE λ
: 550.0 nm
: 1 s
: 00:00
: OFF
: AUTO
: OFF
: Select from ABS / %T / CONC.
Selects Absorbance.
Selects % transmittance.
Selects Concentration mode. (Only available when SINGLE λ
is selected)
: Enter a description using the TEXT ENTRY screen.
: Select from SINGLE λ or MULTI λ
:
English GD Issue 1 (08/2000)