Thermo Scientific Orion Versa Star, Справочное руководство

Страница: 10 / 36

6
Thermo Scientific Orion VERSA STAR Conductivity/Temperature Module
Read Type Information
There are three main read types available as shown in the setup menus.
• Auto-Read – The meter will display the measurement as it stabilizes and lock and hold the
measurement when it is stable. (The AR icon will lock on the screen.) Once the measurement is locked,
the meter will automatically export the measurement to the data log, if the data log is enabled in
the setup menu, and to a printer or computer, if a printer or computer is connected to the meter and
enabled in the setup menu. To take a new measurement, press
measure (esc)/1 .
•
Timed –
The meter will read and display a measurement at the set time interval that is programmed
by the operator. There are two options:
1. By checking/selecting the "Interval" box, at the set time interval, the meter will automatically
export the measurement to the data log, if the data log is enabled in the setup menu, and to a
printer or computer, if a printer or computer is connected to the meter and enabled in the setup
menu. If selected, enter the time interval value in a hours:minutes:seconds format using the
numeric keypad and press f3 (select) key.
2. If the "Interval" box is unchecked/not selected, a single timed measurement will be taken.
The meter will apply the same saving and exporting data conditions as with the set time
interval to record and export data, but lock after one timed interval has expired. Press
measure (esc)/1 to reset the countdown clock and take a new reading.
• Continuous – The meter will continuously measure and update the display. This read type is useful
when performing an experiment that requires continuous measurements to be taken. Press the
log/print/0 key to export the measurement to the data log, if the data log is enabled in the setup
menu, and to a printer or computer, if a printer or computer is connected to the meter and enabled in
the setup.
Temperature Compensation Options
These options can vary according to the measurement mode.
• Linear – Most beneficial for use with samples with known and linear temperature coefficients.
• nLFn – This abbreviation is for non-linear natural pure water. It works best for low conductivity water
such as pure waters and natural waters (ground, well or surface waters).
• nLFu – This abbreviation is for non-linear ultra pure water that contains no air or carbon dioxide.
•
EP –
Temperature-compensation is turned off when this is selected. Using this feature results in
warning limits being displayed when the pure water sample is over the acceptable reading for that
temperature per EP or USP requirements.