15
• Pay attention to the selected range.
To change the range, simply press
RANGE/GLP/ .
• Fill the cuvet with 10 mL of unreacted
sample, up to the mark, and replace the
cap.
• Place the cuvet into the cuvet holder and
ensure that the notch on the cap is
positioned securely into the groove.
• Press ZERO/CFM and the lamp, cuvet and
detector icons will appear on the display,
depending on the measurement phase.
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.
Important note: Chlorine ULTRA HIGH RANGE and chlorine LOW RANGE have to be measured
separately with fresh unreacted samples if both values are requested.
MEASUREMENT PROCEDURE
• 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.
MEASUREMENT PROCEDURE FOR CHLORINE LOW RANGE (P1)
Warning: If the Chlorine Low Range 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.
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