User Manual

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for 2s. It means the internal storage has been cleared.
3.3 Sockets:
REF — Reference electrode socket
pH/mV — pH and ORP electrode socket (BNC socket)
TEMP — Temperature electrode socket (RCA socket)
RS232 — RS232 communication connector socket
DC9V — DC9V power socket, Ф2.5, inner “+” outer “-”
pH Measurement
3.4 Preparation:
4.1.1. Switch in power, press key to turn on.
4.1.2. Short press < MODE > key to switch to mode.
4.1.3. Insert the pH/ATC three-in-one combination electrode into the meter’s socket.
3.5 Electrode Calibration:
4.2.1. Press < CAL > to enter calibration mode, LCD flashes indicating to make
the 1
st
point calibration.
4.2.2. Rinse pH electrode in pure water, allow it to dry and submerge it in pH7.00 buffer
solution. Stir the solution briefly and allow it to stay in the buffer solution until reading is
ON
OFF