Sper Scientific LUCL-2006 Chlorine Meter - Manual (Page 13)

4) Zero chlorine calibration
* Insert the " Zero Chlorine standard solution into the
" Container " ( 3-2 , Fig. 1) and envelope in the " Cover "
( 3-1, Fig. 1 ) completely, other procedures please
refer to chapter 4-1, 4-2.
* Press " CAL Button " ( 3-5, Fig. 1 ) continuously
until the Display show the text " CAL " then release
the button.
CAL
ppm
* During the display show text " CAL ", press the
" CAL Button " ( 3-5, Fig. 1 ), the display will show
0.00
CAL ppm
Now the meter is ready for the " Zero Chlorine "
calibration
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