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MEASUREMENT PROCEDURE FOR FREE CHLORINE (P1)
Warning:
If the Free Chlorine reagent is added to a sample with high chlorine concentration the
color formed can be rapidly bleached, resulting erroneous low readings.
• Turn the meter on by pressing
ON/OFF
. The display briefly shows all tags on.
To compensate the meter for the sample turbidity or color, the measurement takes place in two
phases. First, the meter is zeroed using the unreacted sample. After the reagents are added the
reacted sample is measured.
• When the beeper sounds briefly and the LCD displays dashes, the meter is ready. The blinking
“ZERO”
indicates that the instrument needs to be zeroed first.
• Fill the cuvette with 10 mL of unreacted sample, up to the mark, and replace the cap.
• Place the cuvette into the cuvette holder and ensure that the notch on the cap is positioned
securely into the groove.
MEASUREMENT PROCEDURE
Important note:
Chlorine ULTRA HIGH RANGE and Free Chlorine have to be measured separately
with fresh unreacted samples if both values are requested.
• Pay attention to the selected range. To change the range, simply press
RANGE/GLP
.
