Taylor K-8000, User Manual, Page: 40 / 100

3-14 TTi
®
Colorimeter User’s Manual
Part 3 Colorimeter Operation
STEP 4
Prepare blank.
A blank is used to ZERO the instrument and establish a reference
point for reading samples. A blank may or may not contain reagents
depending on specific test requirements. Instructions supplied with
each test will describe how to prepare the blank.
Here is a typical procedure for preparing a blank:
• Rinse and fill 25 mm sample cell to 10 mL mark with sample;
then cap.
• Insert sample cell into sample cell compartment. Align marks.
STEP 5
Zero the Colorimeter.
Select ZERO
using  ; then press ENTER .
The ZEROING transition graphic will be displayed; then zero (0.00
for this example) will be displayed.
This zero reference point will be stored for all subsequent readings
until the test is exited. The instrument can be re-zeroed at any time
during the test procedure.
Align arrow on
sample cell with
notch on meter.