Chapter
6
|
RDO/DO Measurement Module
Air Saturated Water Calibration
1.
Press the
f1 (Cal) key to start the calibration.
a.
If more than one channel is displayed
in the measurement mode, press the
▲ or
▼
key to highlight the desired channel and press the
f3 (Select) key.
2.
Press the
▲ or
▼ key to highlight Air Saturated Water and press the
f3 (Select) key.
3.
Prepare the DO probe and 100% air-saturated water and allow them to reach equilibrium.
a.
Use plastic paraffin film to seal the open area between the DO probe and vessel
containing the 100% air-saturated water.
4.
When the DO probe and calibration apparatus are ready, press the
f3 (Start) key.
a.
If using
a stirrer probe, the stirrer probe will start stirring when the
f3 (Start) key is
pressed and stop stirring when the reading stabilizes.
5.
Wait for the dissolved oxygen value on the meter to
stabilize and press the f2 (Accept) key.
a.
100.0 % will be displayed when the reading stabilizes.
6.
Press the
f3 (Cal Done) key to save and end the calibration.
7.
The meter will display the calibration summary and export the data to the calibration log.
Press the
measure (esc) key to proceed to the measurement mode.
Manual (Winkler) Calibration
1.
Press the
f1 (Cal) key to start the calibration.
a.
If more than one channel is displayed in the measurement mode, press the
▲ or
▼
key to highlight the desired channel and press the
f3 (Select) key.
2.
Press the
▲ or
▼ key to highlight Manual and press the
f3 (Select) key.
3.
Prepare the DO probe and calibration solution and allow them to reach equilibrium.
a.
Use plastic paraffin film to seal the open area between the DO probe and vessel
containing the calibration solution.
4.
When the DO probe and calibration apparatus are ready, press the
f3 (Start) key.
a.
If
using a stirrer probe, the stirrer probe will start stirring when the
f3 (Start) key is
pressed and stop stirring when the reading stabilizes.
5.
Wait for the dissolved oxygen value on the meter to stabilize and perform one of the following
actions:
a.
Press the
f2 (Accept) key to accept the displayed value.
or
b.
Press the
f3 (Edit) key and use the numeric keypad to enter the dissolved oxygen
value of the calibration solution. Press the
f2 (Accept) key to confirm the entered value.
6.
Press the
f3 (Cal Done) key to save and end the calibration.
7.
The meter will display the calibration summary and export the data to the calibration log.
Press the
measure (esc) key to proceed to the measurement mode.
68
|
Orion V
ERSA
S
TAR
Meter User Manual
Thermo
Scientific
7
Meter Measurements
Measurement Overview
The type of module connected to each of the four channels on the V
ERSA
S
TAR
meter will define
the measurement capability of that channel.
V
ERSA
S
TAR
Module
Measurement Capabilities
pH module
pH, mV, relative
mV or ORP with temperature
pH/ISE module
pH, mV, relative mV, ORP or concentration (ISE) with temperature
pH/LogR module
pH, mV or ORP with temperature/LogR temperature
Conductivity module
Conductivity, TDS, salinity or resistivity with temperature
RDO/DO module
Dissolved oxygen as % saturation or concentration
with temperature
When two or more modules are connected to the meter, pressing the
channel key will change
the number and combination of channels displayed in the measurement mode. Each
channel
can be displayed individually or two to four channels can be displayed simultaneously.
The information shown in the measurement mode can be customized using the
Instrument
Settings
setup menu. The channel number, measurement mode, method, stability indicator,
temperature, secondary measurement parameter, calibration details, user ID, sample ID and
electrode serial number can each be shown or hidden. Hiding these items in the measurement
display will increase the font size of the main measurement value in the single channel display.
Ø
Use the Buzzer – Ready setting in the
Instrument Settings
setup menu to enable an audible
beep when a measurement becomes stable.
C H A P T E R 7
70
|
Orion V
ERSA
S
TAR
Meter User Manual
Thermo Scientific