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Prepare the instrument for measurement as follows:
• Unpack the instrument by removing the dust protection sleeve from the instrument cuvette
holder.
• Place the battery in the instrument as described in the “BATTERY REPLACEMENT” chapter.
• Place the instrument on a flat table.
• Do not place the instrument under direct sun light.
The measurement takes place in two phases. First, the meter is zeroed using a deionized water
sample. After the reagents are added the reacted sample is measured. After the unfiltered and then
the filtered samples are measured.
• Turn the meter on by pressing
ON/OFF
. The display briefly shows all tags on.
• 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 one cuvette up to the 10 mL mark with deionized water and replace the cap. This is the
blank.
• Fill another cuvette up to the 10 mL mark with unfiltered sample and replace the cap. This is
the apparent color.
ST
ARTUP
MEASUREMENT PROCEDURE
