Thermo Scientific Orion Star A220 Series, User Manual

Page: 24 / 90

Chapter 3
|
Meter Setup Menus
Mode and Settings Menu for COND Channel
Use the Mode and Settings menu to customize settings for the conductivity channel of Orion
Star A222 conductivity meters. Default meter settings are bold.
Parameter Settings Details
Measure Mode
• Conductivity
•
Salinity
•
TDS
•
Resistivity
Set the displayed measurement mode, the selected mode
determines which additional settings are shown and the
type of calibration the meter will perform
Read Type
•
Auto
• Continuous
Set the read type to determine how the meter takes a
measurement and when the measurement is sent to the
data log and/or external device
Cell K Cell K 0.4750 Enter the nominal cell constant (K) value of the
conductivity sensor for automatic conductivity calibration
TDS Factor
(TDS only)
TDS Factor 0.49 Enter the TDS factor value for total dissolved solids
measurements
Ref. Temp.
• 15°C
• 20°C
•
25°C
Set the reference temperature for temperature
compensated measurements, readings are adjusted to
the selected reference temperature when the temperature
compensation setting is active
Temp. Comp.
•
Off
• Linear
•
nLFn
Set the temperature compensation type as linear, nLFn
(non linear natural water) or off
Temp. Coeff. Temp. Coefficient 2.10 Enter the temperature coefficient used with the linear
temperature compensation setting
Cal Due Alarm
(Conductivity
only)
•
Cal Due Alarm On
Set the calibration due alarm off or on, when the alarm is
on, the fixed calibration time interval is 12 hours and the
alarm is triggered after 12 hours has elapsed without a
calibration being performed
Cell Type
• Standard
•
USP
Set the type of conductivity senor as standard (most
sensors) or USP (2-cell sensors in ultra pure water)
Cell K Setting
Orion Star A222 conductivity meters are capable of automatically recognizing Thermo Scientific
Orion 100 μS conductivity standard, 1413 μS conductivity standard and 12.9 mS conductivity
standard when the nominal cell constant (K) value of the conductivity sensor is entered in the
setup menu.
Catalog Number Description
011008 Orion 100 μS conductivity standard, 5 x 60 mL
011007 Orion 1413 μS conductivity standard, 5 x 60 mL
01100710 Orion 1413 μS conductivity standard, 10 individual use pouches
011006 Orion 12.9 mS conductivity standard, 5 x 60 mL
01100610 Orion 12.9 mS conductivity standard, 10 individual use pouches
24 | Orion Star A220 Series Portable Meter User Manual Thermo Scientific