Aztec 600 ISE ammonia and fluoride
Single-stream ion-selective analyzers
6 Configuration
OI/AXM630–EN Rev. I
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6.3 Calibration
There is one tab in the Calibration screen.
6.3.1 Setup
Fields
Description
Calibration Time
The time the analyzer calibrates.
Calibration Date
The next date when a calibration is due.
Calibration Frequency
Frequency at which an automatic calibration is performed.
Low Standard
The concentration of the low standard.
High Standard
The concentration of the high standard.
Gradient Coefficient
The gradient coefficient is an indication of the variation between the actual calibration curve and
the ideal calibration curve.
A limit to the gradient coefficient can be set (ideal coefficient =1).
Above this limit the analyzer fails a calibration.
Default fail criteria occurs when the coefficient exceeds 1 ± 0.6.
Calibration Fail Event
If set to 'Fail' (default), the analyzer stops and displays a failed calibration message when a
calibration fails.
If set to 'Attention', the analyzer continues running after a failed calibration (using the last valid
calibration data).
Both passed and failed calibration data can be viewed in the Audit Log.
