Use and Care Manual / Installation Instructions

Fig. 1 Access the

water reservoir; the

sensor will be on

the left side.

water

6. Enter the pH calibration screen press

SETUP (A), SET RESERVOIR (B), PH

SENSOR(C), then CALIBRATE (D) and

follow the instructions on the screen.

Calibration will take about three minutes

to complete.

Continued on next page

CALIBRATE THE pH SENSOR

1. Remove the lower grow drawer to access the reservoir (Fig.1)

2. Locate the pH sensor probe on the right side of the reservoir (Fig.2)

3. Fill one cup of water, one cup of pH buer #4 (Fig. 3) and one cup of pH buer #7

(Fig. 4)

4. Remove cap from the sensor and gently wash the pH probe in the water and dry on

a clean cloth.

Fig. 2 Blue PH sensor (shown with cap on)

Fig. 3

PH buffer #4

Fig. 4

PH buffer #7

water

5. Gently swish the

probe in the pH buer

#4. Continue to swish

the probe and follow

instructions in step 6.

7. Wash the pH sensor

in the cup of water

and dry on a clean

cloth. Repeat steps

5 and 6 for pH bu-

er #7 solution

IMPORTANT: Safely store the pH sensor cap and use it to stop the

sensor from drying out when the water reservoir is empty. Do not

let the pH sensor dry out. Fill cap with pH #4 calibration solution

before placing it on probe to store the sensor. Failure to follow this

procedure will ruin the sensor and void the warranty.

8. Press DONE when calibration is com-

plete

START-UP (continued)