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FREE AND TOTAL CHLORINE MEASUREMENT
To take colorimetric measurements follow next steps:
Turn the instrument on by pressing ON/OFF.
Assure that the correct range is selected by
paying attention to the startup message or to
the measuring units.
When dashes are displayed on the LCD, the
instrument is ready. The current time appears
on the secondary LCD, if selected in SETUP
menu, or “F Cl” or “t Cl” if the time is not
displayed.
The “ZERO” tag will blink suggesting that a
zero measurement should be done.
ZEROING THE INSTRUMENT
Fill a clean, dry cuvet with 10 mL of sample,
up to the mark, taking care to handle the cuvet
by the top. Replace the cap.
Wipe the cuvet thoroughly with a lint-free cloth
to remove any fingerprints, dirt or water spots.
Place the cuvet into the instrument. Align the
mark on the cuvete with the sign on the
instrument top and close the lid.
Note:If you have a cuvet with orientation mark
place the cuvete with the orientation mark
aligned with the sign on the instrument top.
Press ZERO/AVG . The dashes will blink on
the primary LCD. If the zeroing procedure was
successful, the display will show “-0.0-”.