BREWFERM COBRA Manuel page 11

buffer, the buffer pH value (4, 7 or 10)
will appear on the display in 2 seconds.
CAL ATC
If the calibration buffer is not 4,7 or 10,
but another value, such as 7.01, just
press "
6. The adjustable cal. point range for
4.0pH is from 3.50 to 4.50. For 7.0pH
is from 6.50 to 7.50. For 10.0pH is from
9.50 to 10.50.
7. To save the calibration value:
When the electrode reads a stable
value and the user is not pressing any
key, the meter will automatically save
the value and then exit the calibration
mode.
8. Rinse the probe with de-ionised water
or a rinse solution (e.g. tap water) after
each measurement to prolong the me-
ter's life.
9. Repeat the steps above until the point
calibration is finished.
F
O
" to change the value.
HOLD
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