Thermo Electron Corporation X-1Orion Star Series Meter
Chapter X
ISE Technique
Definition of Terms and Concepts
• ISE Resolution selects the number of significant digits displayed in
measurement mode. In addition, the resolution selection is used by SMART
STABILITY™ & SMART AVERAGING™ algorithms to optimize the accuracy,
precision, and response of the ISE measurement.
• ISE Units denote the units to be displayed in measurement & calibration. Both
measurement and calibration must be performed in the same units.
• ISE Calibration Standard Concentration Range selects the stability criteria to
be used in the ISE calibration. For most calibrations the
setting is the
best option. The setting can improve the accuracy of low concentration
measurements by allowing the sensor a longer amount of time to stabilize in the
calibration standard.
• ISE Auto-Blank Correction uses Thermo’s patented Auto-Blank algorithm to
compensate for sensor non-linearities in low-level measurements. Since these
require the use of a set of non-linear equations that can only be calculated
numerically, the user cannot analytically verify the calibration. In applications
were analytical verification is a requirement, the user can choose the turn the
Auto-blank correction .
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