Analyzer Operation
III-7
Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide
Channel Specific Setup
Mode Menu Options
If a two channel analyzer is in use, the following setup mode menu
options are specific to the first channel of the 2120XP analyzer for calcium
measurements. When a pH/ORP module or conductivity module is
installed on the second channel of the 2120XP analyzer, refer to the
Thermo
Scientific Orion 2100 Series pH/ORP Analyzer and Conductivity Analyzer
User Guide
for detailed instructions on the second channel setup mode
menu options.
The operator must select the channel number in the main setup mode
(CH1 or CH2) and the menu options that are relative to the measurement
capability of that channel will be displayed. If a one channel analyzer is
being used, the CH1 and CH2 menus will not be shown.
Set the number of significant digits, mV display option and concentration
units displayed when in the measure mode:
• Set the number of significant digits displayed measure mode
• Scroll through 2, 3 or 4 significant digits
• Default significant digits – 3
• Enable mV values to be displayed on the second line
• Scroll between On or OFF
• Default mV setting – OFF
• Set the displayed concentration units
• Scroll through AUtO (automatically ranges from ppb to ppm), PPb
(parts per billion, ppb), or PP (parts per million, ppm)
• Default displayed concentration units – AUtO
Set the time that the system will remain on hold before the actual
measurements are displayed after a calibration:
• Once the hold time expires, the system implements any programmed
changes to settings in the setup mode
• After a calibration, the hold function allows the operator to rinse the
electrodes prior to recording actual measurement values
• Default hold time – 30 minutes
Adjust the temperature reading from the ATC probe by ± 5.0 °C:
• Default adjustment – 0.0 degrees C
MEAS
CH1 or CH2
HOLD
TADJ
