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Thermo Scientific
Meter Models and Measurement Capabilities
The table below shows the available models of Orion Star A320 series portable meters and
their available measurement modes. All measurements include temperature.
Channel 1
Meter Model
Measurement
Modes
pH
Star A321 pH
mV
Meter
RmV
ORP
Conductivity
Star A322
TDS
Conductivity
Salinity
Meter
Resistivity
Dissolved Oxygen
Star A323
as % Saturation
RDO/DO Meter
or mg/L
pH
mV
Star A324 pH/ISE
RmV
Meter
ORP
ISE
pH
Star A325
mV
pH/Conductivity
RmV
Meter
ORP
pH
Star A326
mV
pH/RDO/DO Meter
RmV
ORP
pH
Star A329 pH/ISE/
mV
Conductivity/
RmV
RDO/DO Meter
ORP
ISE
Meter Maintenance
For routine meter maintenance, dust and wipe with a damp cloth. If necessary, warm water
·
or mild water-based detergent can be used.
Meter maintenance can be performed on a daily, weekly or monthly basis, as required by
·
the operating environment.
Remove any spilled substances immediately from the meter or module using the proper
·
cleaning procedure for that spill type.
Channel 2
Channel 3
Measurement
Measurement
Modes
Modes
n/a
n/a
n/a
n/a
n/a
n/a
n/a
n/a
Conductivity
TDS
n/a
Salinity
Resistivity
Dissolved Oxygen
as % Saturation
n/a
or mg/L
Conductivity
Dissolved Oxygen
TDS
as % Saturation
Salinity
or mg/L
Resistivity
Orion Star A320 Series Portable Meter User Manual
Chapter 2
Meter Basics
|
Temperature
Modes
Automatic
Manual
Automatic
Manual
Automatic
Automatic
Manual
Automatic
Manual
Automatic
Manual (channel 1
only)
Automatic
Manual (channel 1
and 2 only)
23
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