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Calibration
Calibration At Custom
Concentrations
Using DKA
For Maximum Accuracy
Thermo Scientific Orion 2120XP Calcium Hardness Analyzer User Guide
The Thermo Scientific Orion 2120XP calcium hardness analyzer software
has default values to accommodate 0.50 mL additions of standard 1 and
standard 2 and flow cell volume of approximately 95 mL.
The operator has the option to use alternate standards by changing, in the
setup mode, the flow cell volume, the standard 1 and standard 2 values and
the volumes to be used.
Let V
= Flow cell volume
C
C
= Standard 1 concentration
1
C
= Standard 2 concentration
2
V
= Volume of standard 1 added
1
V
= Volume of standard 2 added
2
dC
= Concentration change due to the first addition
1
dC
= Concentration change due to the second addition
2
dC
= C
x V
/ (V
1
1
1
dC
= C
x V
/ (V
2
2
2
•
dC
should be at least twice the normal concentration in the sample
1
•
dC
should be about ten times of dC
2
•
dC
should not be less than 10 ppb
1
Default: 95.0 mL
Default: 191 ppm
Default: 1920 ppm
Default: 0.50 mL
Default: 0.50 mL
+ V
)
1
C
+ V
+ V
)
1
2
C
1
IV-13
- Quick Links:
- Calibration
- Calibration Error Codes
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Troubleshooting
