Chapter 3
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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 A322 conductivity meters, Orion Star A325 pH/conductivity meters and Orion Star A329
pH/ISE/conductivity/RDO/DO 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
•
Timed 00:00:03
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
Type
(Salinity only)
•
Practical Salinity
•
Sea Water
Set the type of salinity measurement as practical salinity
(psu) or natural sea water (ppt)
TDS Factor
(TDS only)
TDS Factor
0.49 Enter the TDS factor value for total dissolved solids
measurements
Ref. Temp.
•
5 °C
•
10°C
•
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
•
nLFu
•
EP
Set the temperature compensation type as linear, nLFn
(non linear natural water), nLFu (non linear ultra pure
water), EP (compensation off with alarm when values are
outside EP requirements for ultra pure water) or off
Temp. Coeff.
Temp. Coefficient
2.10 Enter the temperature coefficient used with the linear
temperature compensation setting
Stability
•
Smart Stability
•
Fast
•
Medium
•
Slow
Set when a measurement is recognized as stable, Smart
Stability compensates for measurement conditions and
optimizes the meter response time
Averaging
•
Off
•
Automatic Smart
Set averaging for faster measurement stability, Automatic
Smart compensates for measurement conditions and
optimizes the meter response time
Limit Alarm
•
Limit Alarm
Off On
•
Alarm Settings
High High/Low Low
•
High Limit
•
Low Limit
Set the limit alarm off or on, when alarm is on – set the
alarm setting as high, high/low or low and then enter the
appropriate measurement limit values
The limit alarm is triggered when the measurement goes
above the high limit or below the low limit
Cal Due Alarm
(Conductivity
only)
•
Cal Due Alarm
On Off
•
Cal Due Limit
12 Hrs
Set the calibration due alarm off or on, when on – enter
the calibration interval in hours (1 to 9998 hrs)
The calibration due alarm is triggered after the set time
has elapsed without performing a calibration
Cell Type
•
Standard
•
USP
Set the type of conductivity senor as standard (most
sensors) or USP (2-cell sensors in ultra pure water)
40
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Orion Star A320 Series Portable Meter User Manual
Thermo Scientific
Содержание Orion Star A320 Series
Страница 5: ......
