7.2 Parameter setup method
When turned off, long press to enter parameter setting→Short press to switch P1-P2-
…P7→Short press , parameter flashing→Short press to choose parameter→Short
press to confirm→Long press to go back to measurement mode.
7.3 Parameter setting instruction
7.3.1 Select standard pH buffer solution (P1):
There are two options of standard buffer solutions: USA series and NIST series. Factory default is
USA series, for details see clause 5.7.
7.3.2 Alarm Function (P2&P3)
Examples:
■ Alarm triggered when measurement ≤ 3.20 pH:
Preset lowest value (P2) = 3.20 pH, highest value (P3) = 14.00 pH, when measured value ≤
3.20 pH (stable displays on LCD); LCD displays red backlight.
■ Alarm triggered when measurement ≥ 8.60 pH:
Preset highest value (P3) = 8.60 pH, lowest value (P2) = 0.00 pH, when measured value ≥ 8.60
pH (stable displays on LCD); LCD displays red backlight.
■ Alarm triggered when measurement ≤ 3.20 pH or ≥ 8.60 pH
Preset lowest value (P2) = 3.20 pH, highest value (P3) = 8.60 pH, when measured value is lower
than 3.20 pH or higher than 8.60 pH (stable displays on LCD), LCD displays red backlight.
7.3.3 Automatic Lock (P4)
Select “On” to activate auto lock function. When reading is stable for more than 10 seconds,
the tester will lock the value automatically, and HOLD icon will display on LCD. Short press
key again to cancel the lock.
7.3.4 Backlight (P5)
“Off”-turn off backlight, “On”-always turn on backlight, “1”- backlight will last for 1 minute.
7.3.5 Temperature Unit (P5)
Select C˚ or F˚, the factory default is ˚F.
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