Orion Benchtop pH/ISE Meter Instruction Manual
Overview of Meter Functions-420Aplus, 710Aplus
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2nd Displayed when 2nd has been pressed,
indicating the meter is ready to perform a
second function, cal, timer, setup, or print.
ready Displayed when the electrode is stable. READY
may be turned on or off in the SETUP menu.
hold Displayed when the pH reading is frozen after
reaching stability. The HOLD feature may be
turned on or off in the SETUP menu.
timer Displayed when the timer function has been activated.
Mode Designates instrument operating mode in
Indicator pH, millivolts (mV), Relative millivolts (Rel mV),
Concentration (conc.) (with 710Aplus Meter only).
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