User Manual
26
VII. CALIBRATION
A.
be checked twice a month. Calibration of ORP is not necessary (ref.
CALIBRATION INTERVALS TABLE
B.
III
1. Calibration Steps
CALIBRATION INTERVALS TABLE:
Function KCl, NaCl or 442 User
Cond
Res
pH 7, acid and/or base
ORP Zero set with pH 7
Alkalinity
Hardness
a. Starting Calibration
CAL
reading is changed with the
and
keys to match the
Once in CAL mode, the
new calibration.
For pH, at each point, pressing
accepts the new calibration