Yokogawa PH72 Personal pH/ORP Meter - Manual (Page 37)

IM 12B03D02-01E 5-2
5. Keypad and Display Functions
5.1 Keypad Functions
POWER
: Power On/Off key
Pressing and holding this key for at least one second when nothing is displayed on the
LCD, will turn the meter on. The meter will be turned off by pressing and holding this
key for at least two seconds when the meter is on. If no keys are pressed for a preset
time, the meter turns off power automatically. (Refer to Section 5.3 (8), “Set Auto Power
Off time (A.oFF) panel.”)
CAL
: Calibration key
When pressed during measurement, mark turns on and the meter moves to
calibration mode. To return to measurement mode, press CAL or MEAS key.
HOLD : HOLD key
When pressed during measurement, mark turns on and the currently displayed
measured pH (or mV) value and temperature are held. Pressing HOLD or MEAS key
will turn mark off and return the meter to measurement mode.
DATA : DATA key
When pressed during measurement, mark flash and the currently displayed
measured pH (or mV) value and temperature are held temporarily. Pressing F/ENT key
while mark is flashing, will store the held data in memory. After the data is
stored successfully, the meter returns to measurement mode automatically. To cancel
data storage, press DATA or MEAS key while mark is flashing. mark
will turn off and the meter will return to measurement mode.
MEAS : Measurement key
In measurement mode each press of this key cycles through three measurement display
panels. (Refer to Section 3.3, “Measurement Display Panel.”) Pressing this key in other
modes will return the meter to measurement mode. If you want to cancel any operation,
press this key to return to measurement mode.
: Setting change keys
Used to change settings.