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Clear stored data
The meter can store 50 groups of data. Once the storage is full, if user
presses again, the
FUL
icon will be displayed on LCD (see Figure-6).
The storage needs to be cleared in parameter setting P4 so as to keep storing
data. The numberings in
M+
indicates the total number of stored data; The
numberings in RM indicates the number of stored data in current mode (ph/mV).
For example, if 20 groups of data is stored in pH mode, and 10 groups in mV
mode, then the numberings for M+ will be “
M+30
” in both pH and mV mode;
the numberings for RM in pH mode would be “
RM20
”, in mV mode “
RM10
”.
4.6
Max/Min Function
Use this function to display the maximum or minimum records out of groups of measuring data. In
measurement mode, press , LCD will display flashing icons of “
MAX/MIN
”, indicating the meter has
entered the mode of recording maximum and minimum data. After testing, press again, LCD will
alternately display the maximum and minimum value in the past measurements. Press to go back to
regular measurement mode.
5
pH Measurement
5.1
Preparation
Install the electrode holder
The electrode holder is composed of a metal stand base, a supporting pole, and an electrode clip. First, install
the metal stand base to the meter (screw it on). Please note that the metal base can be installed on either side
of the meter. Then install the supporting bar on the metal stand base, and then install the electrode clip on the
supporting bar.
Connect the power adapter
Plug the power adapter tightly into the DC9V socket. The power’s voltage should meet the requirements listed
on the power adapter.
Things needed in addition to what’s included in the box
A clean cup, distilled water (8-16oz), and tissue papers for rinsing and drying the probe.
5.2
pH Electrode Information
pH Electrode
The meter comes with the 201T-F 3-in-1 combination electrode with a built-in temperature sensor, which
enables the automatic temperature compensation. This electrode is only suitable for regular water solutions’
pH testing. Please refer to Section 7 for ideal pH electrodes to use for other specific applications. The
electrode’s housing adopts polycarbonate materials, which is resistant to shocks and corrosion. A 3M KCL
storage bottle comes with the electrode, which is for storing the electrode when not in use to keep the sensitivity
Figure - 6
