Thermo Scientific Orion Star A320 Series Manual page 34

Chapter 3 Meter Setup Menus
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34 Orion Star A320 Series Portable Meter User Manual
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Mode and Settings Menu for pH Channel
Use the Mode and Settings menu to customize settings for the pH channel of Orion Star A321
pH meters, Orion Star A325 pH/conductivity meters and Orion Star A326 pH/RDO/DO meters.
Default meter settings are bold.
Parameter Settings
· pH
· mV
Measure Mode
· RmV
· ORP
· Auto
Read Type
· Continuous
· Timed
1 Decimal Place
Resolution
2 Decimal Places
(pH only)
3 Decimal Places
Buffer Group
· USA
· DIN
(pH only)
· Smart Stability
· Fast
Stability
· Medium
· Slow
· Off
Averaging
· Automatic Smart
· Limit Alarm
Off
· Alarm Settings
Limit Alarm
High
· High Limit
· Low Limit
· Cal Due Alarm
Cal Due Alarm
On
(pH, RmV and
· Cal Due Limit
ORP only)
12 Hrs
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
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 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
On
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
Off
hours (1 to 9998 hours)
The cal due alarm is triggered after the entered time
has elapsed without a calibration being performed
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