Apera Instruments PH800

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P2.4 —Select reference temperature (15.0℃—30.0℃)
1. Press , “25.0℃” flashes, press or to adjust temp. from
15℃ to 30℃; press to confirm.
2. Press to enter P2.5, or press to return to measurement mode.
P2.5 —Adjust temp. compensation coefficient (0.00-9.99%)
1. Press , “2.00” flashes, press or to adjust from 0.00-9.99;
press to confirm.
2. Press to enter P2.6, or press to return to measurement mode.
P2.6 —Adjust TDS Factor (0.40-1.00)
1.Press , “0.71” flashes, press or to adjust from 0.40-1.00;
press to confirm.
2. Press to enter P2.7, or press to return to measurement mode.
P2.7 — Set the Factory Default（No—Yes）
Press , “No” flashes, press to select No→Yes, press to
confirm, instrument back to measurement mode.
No — Not restore; Yes — Restore factory default
8.5 Basic Parameter Setting Sub-Menu (press or to switch)
P5.1 — Adjust timing for auto storage
1. In P5.0, press to enter P5.1 as shown in the left figure.
2. Press , ":00" flashes, press or to set minute (0-59), press
again, "0:" flashes, press or to set hours (0-99), press
to confirm.
3. Press to enter P5.2, or press to return to measurement mode.
P5.2 — Choose Temp. Parameter (°C—°F)
1. Press , “°C” flashes, press to choose °C→°F, press to
confirm.
2. Press to enter P5.3, or press to return to measurement mode.