Chapter
7
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Meter Measurements
Measurement Procedure
As needed, customize the information shown in the measurement mode using the
Instrument
Settings
setup menu. If two or more modules are connected
to the meter, while in the
measurement mode press the
channel key until the desired combination of meter channels are
shown. Select the read type for all meter channels shown in the measurement mode.
Prepare the electrodes according to the instructions in the electrode user manuals. Connect the
electrodes to the module inputs on the displayed channels. Make sure the electrodes are
properly calibrated and working correctly.
1.
Rinse the electrodes with distilled water or appropriate solution, blot dry with a lint-free
tissue and place into the sample.
2.
Start the measurement and wait for the reading to stabilize or reach the predefined time.
a.
Auto-Read: Press the
measure (esc) key to start the measurement. If using a stirrer
probe, the stirrer probe will start stirring when the
measure (esc) key is pressed and
stop stirring when the measurement stabilizes.
b.
Timed: Measurements will start immediately when in the measurement mode. If using a
stirrer probe, press the
stirrer key to start and stop stirring.
c.
Single-Shot: Press the
measure (esc) key to start the measurement. If using a stirrer
probe, the stirrer probe will start stirring when the
measure (esc) key is pressed and
stop stirring when the predefined wait time has elapsed.
d.
Continuous: Measurements will start immediately when in the measurement mode. If
using a stirrer probe, press the
stirrer key to start and stop stirring.
3.
Once the measurement is stable or reaches the set time, record all applicable parameters.
a.
Auto-Read: Once the measurement is stable, it will be locked and held
on the display
and the
AR icon will remain solid. If the data log function is enabled, the measurement
will be exported to the data log.
b.
Timed: Measurements will be recorded at the predefined time interval. If the data log
function is enabled, the < icon will be shown when each time interval has elapsed and
the measurement is exported to the data log.
c.
Single-Shot: Once the predefined wait time has elapsed, the measurement will be
locked and held on the display. If the data log function is enabled, the measurement will
be exported to the data log.
d.
Continuous: The flashing
Stabilizing icon will update to the solid
Ready icon when the
measurement is stable. If the data log function is enabled, press the
log/print key to
export the measurement to the data log.
4.
Remove the electrodes from the sample, rinse with distilled water or appropriate solution,
blot dry with a lint-free tissue and place into the next sample.
5.
Repeat steps 2 through 4 for all samples. When
all samples have been measured, store the
electrodes according to the instructions in the electrode user manuals.
74
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Orion V
ERSA
S
TAR
Meter User Manual
Thermo
Scientific
Chapter
7
|
Meter Measurements
Measurement Tip – Using the Electrode Holder
It is recommended that electrodes be placed in the meter-attached electrode stand for easy
movement in and out of beakers during calibration, sample measurement and storage.
The included electrode stand can be attached to either side of the meter. The recommended
electrode positions for the electrode holder portion of the stand are shown below.
15 mm holder for conductivity and
dissolved
oxygen probes
Stirrer probe
holder
12 mm flexible holder for pH, ORP
and ion selective electrodes
Optional RDO optical DO probe holder
12 mm holder with optional
ATC probe insert
Holder with 20° angle for ion
selective electrodes
Thermo Scientific
Orion V
ERSA
S
TAR
Meter User Manual
|
75
8
Data Transfer and Software Updates
Data Transfer Settings
Review the following sections of this user manual for detailed information on the data storage
and transfer settings available with V
ERSA
S
TAR
meters.
User Manual Section
Topic for Review
Meter Connections
Meter inputs used to connect a computer or printer
Instrument Settings
Meter communication, data
log and printing settings
Log View
Viewing and exporting the data log and calibration log from the meter to
an external device
Measurement Read Types
How the meter takes a measurement and when the measurement is sent
to the
data log and external device
If measurements will be saved to the data log and then transferred to a computer or printer,
make sure the data log is enabled in the setup menu, the meter communication settings match
the computer or printer settings and the meter and computer or printer are properly interfaced.
The Orion Star Com communication software is compatible with V
ERSA
S
TAR
meters and a free
download is available at
www.thermoscientific.com/OrionMeters
. The Star Com software
facilitates the transfer of calibration and measurement data from the meter to a computer and
then allows data to be exported to an Excel (.xls) or Comma-Separated Values (.csv) file.
Transferred data can also be printed from the computer. V
ERSA
S
TAR
meters must have
software revision 2.73 or higher to use the Star Com software. The V
ERSA
S
TAR
USB driver
software must be installed on the computer if the USB port will be used to connect the meter
with a computer.
C H A P T E R 8
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Orion V
ERSA
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Meter User Manual
Thermo Scientific