User Manual

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long time. For a new electrode, 3 points calibration must be performed to make the slope of
the meter consistent with the pH electrode.
3.6 Sample Test
Rinse pH electrode in pure water, allow it to dry, and submerge it in sample solution. Stir the
solution briefly and allow it to stay in the sample solution until the stable value and
icon appears on LCD, get the reading which is pH value of sample solution. Please note that
the closer the temperature of the sample solution to the calibration solution is, the more
accurate readings will appear.
3.7 Parameter Setting
4.4.1. pH measuring parameter setting (chart (4-1))
Chart (4-1)
Mode Parameter Settings Code Parameters
P1
pH buffer solution series
selection
USA (Europe & U.S.A series)
NIS (NIST series)
CH (China series)
P2
Time setting for timing
measuring
0-99 min
P3 Unit of temperature
℃ ℉
P4 Date setting Date Month / Day / Year
P5 Time setting Time Hour / Minute
P6 Restore factory setting OFF-On
4.4.2. Select pH buffer solution standard (P1) with
(a) Long press < MODE > key to enter into P1 mode, see picture (4-2).
(b) Press <▲> or <▼> key to choose buffer solution series:
(Europe & U.S.A series) — 1.68, 4.00, 7.00, 10.01 and 12.45 pH
(NIST series) — 1.68, 4.01, 6.86, 9.18 and 12.45 pH
(Chinese series) — 1.68, 4.00, 6.86, 9.18 and 12.46 pH
(c) Press < MODE > key to enter into next parameter setting or press < ENTER > key to