Thermo Scientific Orion Star A320 Series Manual page 40

Chapter 3 Meter Setup Menus
|
40 Orion Star A320 Series Portable Meter User Manual
|
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
· Conductivity
· Salinity
Measure Mode
· TDS
· Resistivity
· Auto
Read Type · Continuous
· Timed
Cell K Cell K
· Practical Salinity
Type
(Salinity only) · Sea Water
TDS Factor
TDS Factor
(TDS only)
· 5 °C
· 10°C
Ref. Temp.
· 15°C
· 20°C
· 25°C
· Off
· Linear
Temp. Comp. · nLFn
· nLFu
· EP
Temp. Coeff. Temp. Coefficient
· Smart Stability
· Fast
Stability
· Medium
· Slow
· Off
Averaging
· Automatic Smart
· Limit Alarm
Off
· Alarm Settings
Limit Alarm
High High/Low Low
· High Limit
· Low Limit
· Cal Due Alarm
Cal Due Alarm
On
(Conductivity
· Cal Due Limit
only)
12 Hrs
· Standard
Cell Type
· USP
Details
Set the displayed measurement mode, the selected mode
determines which additional settings are shown and the
type of calibration the meter will perform
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
00:00:03
Enter the nominal cell constant (K) value of the
0.4750
conductivity sensor for automatic conductivity calibration
Set the type of salinity measurement as practical salinity
(psu) or natural sea water (ppt)
Enter the TDS factor value for total dissolved solids
0.49
measurements
Set the reference temperature for temperature
compensated measurements, readings are adjusted to
the selected reference temperature when the temperature
compensation setting is active
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
Enter the temperature coefficient used with the linear
2.10
temperature compensation setting
Set when a measurement is recognized as stable, Smart
Stability compensates for measurement conditions and
optimizes the meter response time
Set averaging for faster measurement stability, Automatic
Smart compensates for measurement conditions and
optimizes the meter response time
Set the limit alarm off or on, when alarm is on – set the
On
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
Set the calibration due alarm off or on, when on – enter
the calibration interval in hours (1 to 9998 hrs)
Off
The calibration due alarm is triggered after the set time
has elapsed without performing a calibration
Set the type of conductivity senor as standard (most
sensors) or USP (2-cell sensors in ultra pure water)
Thermo Scientific