Thermo Scientific Orion Star A320 Series Manual page 36

Chapter 3 Meter Setup Menus
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36 Orion Star A320 Series Portable Meter User Manual
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Mode and Settings Menu for pH/ISE Channel
Use the Mode and Settings menu to customize settings for the pH/ISE channel of Star A324
pH/ISE meters and Star A329 pH/ISE/Conductivity/RDO/DO meters. Default settings are bold.
Parameter Settings
· pH
Measure Mode
· mV
· RmV
· Auto
Read Type · Continuous
· Timed
1 Decimal Place
Resolution
2 Decimal Places
(pH only)
3 Decimal Places
Buffer Group
· USA
· DIN
(pH only)
1 significant digit
Resolution
2 significant digits
(ISE only)
3 significant digits
· ppm
Measure Unit
· M
(ISE only)
· mg/L
Blank Correct
· Yes
· No
(ISE only)
· Smart Stability
· Fast
Stability
· Medium
· Slow
· Off
Averaging
· Automatic Smart
· Limit Alarm
Off On
· Alarm Settings
Limit Alarm
High
· High Limit
· Low Limit
· Cal Due Alarm
Cal Due Alarm
On
Off
(pH, RmV, ORP
· Cal Due Limit
and ISE only)
12 Hrs
· Off
Low Lv Stability
· On
Details
Set the displayed measurement mode, the selected
· ORP
mode determines which additional settings are shown
· ISE
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
0.1
0.01
Set the resolution of the pH measurement value
0.001
Set the buffer group for automatic buffer recognition
during pH calibrations
USA: pH 1.68, 4.01, 7.00, 10.01 and 12.46 buffers
DIN: pH 1.68, 4.01, 6.86 and 9.18 buffers
Set the resolution of the ion concentration (ISE)
measurement value
· Percentage (%)
Set the units displayed with the ion concentration
· ppb
(ISE) measurement value
· None
Set the automatic blank correction function off or on
for ISE measurements, when the function is on – an
algorithm is used to compensate for the non-linear
response of the electrode in low level standards and
samples for improved measurement stability
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
alarm setting as high, high/low or low and then enter
the appropriate measurement limit values
High/Low Low
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 the cal
due alarm is on – enter the calibration time interval in
hours (1 to 9998 hours)
The cal due alarm is triggered after the entered time
has elapsed without a calibration being performed
Set the low level stability function off or on for ISE
calibrations, when the function is on – the minimum
stabilization time is increased (~3-5 minutes) to
improve accuracy in low level calibration standards
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