24
PHO
TOMETER MODE
8.7. ABSORBANCE MEASUREMENTS
Raw absorbance measurements may be performed on the
HI83326
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. 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
®
CAL Check
cuvettes. The factory calibration corrections for CAL Check cuvettes are applied while in CAL Check
mode only!