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4. DESCRIPTION
4.1.GENERAL DESCRIPTION
HI83303 multiparameter photometer is compact and versatile meter with two measurement
modes: Absorbance and pH/ mV. Absorbance mode include CAL Check feature and 25 different
methods that cover a wide variety of applications, making it ideal for both benchtop and portable
operation.
• Digital electrode input for pH measurements
• Certified CAL Check cuvettes to confirm meter functionality
• Dual purpose micro‑USB flash drive
• Li‑polymer rechargeable battery
• Auto‑off
• Absorbance mode
• User and sample name entry
• GLP features
4.2.PRECISION AND ACCURACY
Precision is how closely repeated measurements
are to one another. Precision is usually expressed
as standard deviation (SD).
Accuracy is defined as the closeness of a test
result to the true value.
Although good precision suggests good accuracy,
precise results can be inaccurate. The figure
explains these definitions.
For each method, the accuracy is expressed in the
related measurement section.
DESCRIPTION
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