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9.7. ABSORBANCE MEASUREMENTS
Raw absorbance measurements may be performed on the
purposes. For example, you may monitor the stability of a reagent blank by occasionally measuring
its absorbance versus deionized water.
To measure the raw absorbance of a prepared sample:
1. Press the METHOD key.
2. Highlight the appropriate Absorbance method (according to the wavelength to be used), then
press Select. Absorbance methods are located at the bottom of the method list.
3. Prepare the sample cuvette according to the method.
4. Insert a cuvette filled with deionized water, then press Zero.
5. Insert the prepared sample cuvette, then press Read.
Warning: Never use absorbance methods for validation using Hanna Instruments
cuvettes. The factory calibration corrections for CAL Check cuvettes are applied while in CAL Check
mode only!
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HI83325
for personal or diagnostic
®
CAL Check
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