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4. Press
ESC
to return in
Setup
menu.
6.7. ABSORBANCE MEASUREMENTS
Raw absorbance measurements may be performed on the
HI83303
for personal or diagnostic
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. Enable “Photometer Mode” if necessary by pressing the
MODE
key.
2. Press the
METHOD
key.
3. 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.
4. Prepare the sample cuvette according to the method.
5. Insert a cuvette filled with deionized water, then press
Zero
.
6. Insert the prepared sample cuvette, then press
Read
.
WARNING: Never use Absorbance methods for validation using HANNA
®
CAL Check cuvettes. The
factory calibration corrections for CAL Check cuvettes are applied while in CAL Check mode only!
PHO
TOMETER MODE