wtw pHotoFlex, Operating Manual

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pHotoFlex / pHotoFlex Turb Operation
41 ba75491e05 04/2009
Preparatory activities Perform the following preparatory activities when you want to measure:
4.5.2 Settings for photometric measurements
For photometric measurements, the following settings are available in
the Configuration / Photometry menu:
z
Setting the measured parameter
z
Displaying a list of all programs
z
Setting the dilution factor
z
Switching on or off the analysis timer
z
Resetting the settings for photometric measurements
The settings can be found in the Configuration / Photometry menu.
To switch to the Configuration menu, press the <MENU> key.
Settings
1 Clean the cells before filling them with sample and also before
measuring as necessary (see section 5.2.2).
The cells must be absolutely clean and free of scratches.
2 For measurement, place the pHotoFlex (Turb) on a horizontal
surface.
Menu item Setting Description
Measured parame-
ter Concentration
% Transmission
Absorbance
Measured parameters in
the Photometry measuring
mode
Programs Display all programs with
the corresponding pro-
gram data (see
section 4.5.7).
Dilution Set the dilution factor (see
section 4.5.10)
Analysis timer On
Off
Switch on/off the analysis
timer (see section 4.5.8)
Reset Reset all settings for the
Photometry measuring
mode (see section 4.10.3)