LABEC M-PL-600 - Manual (Page 10)

or mV measurement），press <READ> long key to change the status.
When the measurement is in balance status, “ ”displays，the
instr en ument will keep this value, the measurement is d; when the
measurement is in stable status, “ ” displays，the measurement
could be recorded, and the measurement is continuing, according to the
balance stability, to be sure if display “
value
” or not.
7. pH sensor calibration
Under the pH measurement mode,
pres
ll
dge
is
ch
should be followed by the operat
1 point calibration
s<CAL>key，LCD displayed as left
chart,“Cal1”icon flashes，immerse the
electrode into the standard buffer after
rinsing with water, shake the vessel for
few minutes, wait for few seconds,
press<CAL>key，the instrument wi
recognize which buffer solution is it,
display as well, wait the instrument ju
pH sensor response to ending point,
display as chart left, 1 point calibration
accomplished the display shows below,
“Cal2”flashes，the instrument reminds
you 1 point calibration is finished, do you
want to proceed 2 points calibration? If
only 1 point calibration needed, press
“READ”to exit calibration process, swit
to pH measurement mode. If the 2 points
calibration is needed, the next chapter
or.
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