• In the power-off mode, press this key to turn on the meter
• In the calibration mode or the parameter set-up mode, press this key to
return to the measurement mode
In the measurement mode, press and hold this key for 2 seconds to turn off the
meter.
• pH7+DHS: press this key to select measurement mode: pH → mV,
• Cond7+: press this key to select measurement mode: COND→TDS
• PC7+DHS pH/Conductivity meter: press this key to select
measurement mode: pH → mV → COND → TDS
In the measurement mode, press this key to enter in the calibration mode
• In the measurement mode, press this key to enter in the parameter
set-up main menu
• In the calibration mode, press this key to confirm calibration
• In the parameter set-up mode, press this key to select programs
In the mode of manual temperature compensation (MTC), when press and hold
these keys, the temperature value flashes, then press this keys to change the
temperature value, and press to confirm
In the setup menu and submenu, these keys increases and decreases the value
of the selected parameter (up and down direction)
•BNC socket— pH electrode or ORP electrode
•RCA socket —temperature probe
•BNC socket— conductivity electrode,
•RCA socket — temperature probe
•BNC socket —pH electrode or ORP electrode,
•BNC socket— conductivity electrode,
•RCA socket— temperature probe