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User Manual
D3. EC / pH Meter Use and Calibration
pH meter
EC meter
pH meter
Usage :
Remove the protective cap. Turn the meter on by sliding the black button to the left.
Immerse into water up to the max immersion level. Stir gently and wait until the display stabilizes
enough to read the result. Turn off pH meter and clean the electrode with pure water. Wipe the
electrode dry and replace the protective cap. (Measurement Range: 0.0 - 14.0 pH; Temperature
32-122°F / 0-50°C; Humidity Max 95%)
Calibration: (pH meter were pre-calibrated before shipping.)
After changing batteries, immerse the meter in a pH 6.86 buffer solution
and allow reading to stabilize. Using a small flat screwdriver, modify the
screw on the back of the unit to adjust the calibration reading to 6.9.
Also, immerse the meter in a pH 4.01 buffer solution and allow reading to
stabilize. Using a small flat screwdriver, modify the screw on the back of
the unit to adjust the calibration reading to 4.0.
Maintenance :
Keep the electrode clean and cover the electrode protective cap. Take out
the batteries when not in use for an extended amount of time. Don't use distilled or deionized
water for storage purposes. When the meter can't be turned on / off or the display fades, take
out the batteries and replace with new battery.
EC meter
Usage :
Unplug the electrode protective cap. Turn the meter on and immerse into water.
When reading is stable, press "Hold" button and take it out of the solution to read. After reading,
turn off the meter and clean the electrode with pure water. Wipe the electrode and replace
protective cap. ( Measurement Range: TDS: 0-99990us/cm, Temperature 32 - 176°F / 0 - 80°C)
Maintenance:
Keep the electrode clean and always cover with protective cap. Please take out batteries when
not in use for a long time, and replace with new battery.
GrowWall
The pH and EC meters come with a convenient,
protective bag that you can hang by your GrowWall.
P29
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