YSI pHotoFlex pH Handheld Colorimeter - Manual (Page 22)

Operation pHotoFlex
®
pH
22 ba76123e01 02/2013
For optimum measurement results, the cell must always be covered by
the external light cover. Otherwise, external light can falsify the mea-
surement result.
4.3 General operating principles
This section contains basic information on the operation of the
pHotoFlex
®
pH.
Operating elements,
display
An overview of the operating elements and the display is given in
section 1.2 and section 1.3.
Operating modes,
navigation
An overview of the operating modes of the pHotoFlex
®
pH and the nav-
igation through menus and functions can be found in section 4.3.1 and
section 4.3.2.
4.3.1 Operating modes
The instrument has the following operating modes:
 Measurement
The display indicates measurement data in the measured value dis-
play
 Calibration
The display indicates a calibration process with calibration informa-
tion,
or a process to carry out a zero adjustment
 Data transmission
The meter transmits measuring datasets or calibration records to the
serial interface
 Configuration
The display indicates a menu with further menus, settings and func-
tions
4.3.2 Navigation
Measured value display In the measured value display, you can
 select a measuring mode with <M> (long pressure)
 select a measured parameter in the active measuring mode (e. g.
pH
<−> mV) with <M> (short pressure)
 open the menu with <MENU>
 switch to the superordinate Start menu with <ESC>.