15
Mini Dilution Kit II (487202) Instructions
Free Chlorine (DPD-1) Test Procedure
Kit includes: Graduated Cylinder (50mL) with cap; Graduated 3mL Syringe
(labeled at 0.1mL increments).
How to do 1 to 20 dilution using the 3mL syringe (dilution factor of 20)
Rinse the 3mL syringe three times with water sample that you are about to test.
1. Rinse the 50mL graduated cylinder three times with distilled or deionized (salt free) water.
2. Fill the 3mL syringe to the 2mL line by pulling up water sample to be tested with upward motion
of plunger to the 2mL line. Note that the plunger ring should line up at the 2mL line.
3. Hold the filled syringe over a clean 50mL cylinder. Push the plunger all the way down to add
the sample to the cylinder.
4. After adding sample to the cylinder, fill the graduated cylinder to the 40mL line with distilled or
deionized (salt free) water. Securely put the cap on the cylinder.
5. Mix the contents of the graduated cylinder by turning the cylinder up side down at least three
times. The sample is ready to add to the meter for testing.
Other dilutions possible with the 3mL syringe are as follows:
Volume in syringe Volume filled in Cylinder Dilution Factor
1.0mL 40mL 40
1.0mL 30mL 30
1.0mL 20mL 20
0.5mL 50mL 100
0.5mL 25mL 50
0.2mL 50mL 250
CALCULATION:
Test Result x Dilution Factor =
Actual Result
NOTE: Chlorine reacts with N,N-diethyl-p-phenylenediamine as it is released from the strip to form a magenta color,
directly proportional to the Chlorine concentration.
DO NOT
discard the sample from the Free Chlorine test if you are planning to run eXact
®
Strip Micro DPD-3 (Combined Chlorine) Procedure. Move directly to steps 7-9 on page 16.
Otherwise, rinse the cell immediately.
*
NOTE: When testing outdoors (sunlight), for best accuracy, use the Mixing Cap/Cell Cover when Zeroing and Reading the sample.
6
Dip the
eXact
®
Strip Micro CL (DPD-1), Part No. 486637
into the
CELL
and immediately press
READ
.
This starts the
20 SECOND
countdown timer. During this time move the strip in a gentle back and forth
motion (approx. 2 strokes/sec).
Remove and discard the strip after “1” on the display disappears*
.
The cursor will move across the display while the meter prepares to measure the sample. Record result
displayed (this result is automatically stored in CL6 Menu).
DIP STRIP AND PRESS “READ”
5
Press the
ZERO/ON
button. The cursor will move across the display, followed by
0.00 PPM
.
Sample is ready for testing.
ZERO METER*
4
Rinse the
CELL
at least 3 times with the water sample you will be testing - rinsing
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capacity with the water sample.
FILL METER WITH SAMPLE
3
Press and re-press the
MENU
button until the display shows the parameter
CL6
.
SELECT TEST: CL6
2
Press the
ZERO/ON
button to power the meter on; the display will show all annunciators,
then the current MENU selection, followed by the last reading.
TURN METER ON
1
Remove one (1)
eXact
®
Strip Micro CL (DPD-1), Part No. 486637
from the bottle before
beginning the test. Set the strip in a dry, convenient place and recap the bottle immediately.
REMOVE STRIP
DPD-1 and DPD-3 are not included in the Standard Eco-Check Kit.
