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(3) — Timing storage icon. When this icon appears, the meter is in the automatic storage mode
(4) — Date and time display value, and prompts of special display mode
(5) — Units of Date and time
(6) — Units of measurement
(7) — Temperature units (°C and °F)
(8) — Units of pH and conductivity calibration value
(9) — pH and conductivity calibration value, the numbering for storage and recall, and prompts of
special display mode
(10) — Storage and recall icons
M+ — Measurement to be stored icon, RM — Reading to be recalled icon
(11) — Temperature value and prompts of special display mode
(12) — Automatic reading lock-up icon
(13) — Temperature compensation icons
ATC — automatic temperature compensation, MTC — manual temperature compensation
(14) — Calibration guide icon
(15) — Stability icon of readings
(16) — USB icon
，
when this icon appears, the meter connects the computer
(17) — Low battery icon, when this icon appears, please renew the battery
3.2 Keypad
3.2.1. Keypad operations
Short press ----- <1.5 seconds, Long press ----- >1.5 seconds.
3.2.2. Turn on the meter
Press to turn on the meter: LCD full display → display the measurement mode (backlight for one
minute).
3.2.3. Turn off the meter
Only in the measurement mode, press to turn off the meter.
Note: In the calibration mode or the parameter set-up mode, pressing is invalid. Please
Diagram-2
