Lab-Grade Instruments Designed Specifically For Growers
Lab-Grade Instruments Designed Specifically For Growers
04
3.1
Power on the pen and remove the probe cap. Always calibrate 7.00 pH first.
4.1
Power on and remove the probe cap.
4.2
Rinse the probe with clean water and shake off excess water.
4.3
Fully submerge the probe into the solution at least 1 inch deep, make a
quick stir to remove potential air bubbles around the probe.
4.4
Hold the pen and wait for the reading to stabilize ( stays on screen),
then record the reading.
4.5
Thoroughly rinse off the probe with clean water, then close the probe cap.
3.2
Rinse the probe with clean water and shake off excess water, then submerge
it in the 7.00 pH standard buffer; shake the probe up and down in the
solution for a few seconds and let it stand.
3.3
Hold until screen turns green. The pen starts automatic calibration.
Wait for "Good" to show up (in 10-15 seconds), indicating the calibration is
completed, then the pen returns to measurement mode.
3.4
icon will show up on the lower left corner of the screen indicating the pen
is successfully calibrated. Repeat Step 3.2 to 3.3 to calibrate pH 4 using 4.00
pH buffer, then will show up next to .
You can continue to calibrate pH 10 by repeating Step 3.2 to 3.3 using 10.01
pH buffer (sold separately), then will show up to the right of
3.5
/ / will disappear in 30 days after calibration, reminding you to re-
calibrate the tester. We recommend calibrating pH at least once a month to
ensure accuracy. If you feel like the accuracy might be off, simply test the
standard buffers (make sure the buffers are fresh and clean). If a discrepancy
is found, then it’s time to calibrate again.
Short press any key while calibrating (in green screen) to cancel calibration and
return to measurement.
Calibrating pH 10 is usually not necessary unless your estimated target pH is
greater than 8.0 pH.
Short press any key while calibrating (in green screen) to cancel
calibration and return to measurement.
Always perform at least a 2-point pH calibration to ensure accuracy. Start
with 7.00 pH, followed by 4.00 pH immediately. If you happened to turn
off the pen before calibrating 4.00 pH, you need to start with 7.00 pH again
after rebooting the pen, then 4.00 pH.
7.00
pH
7.00
pH
3.6
If the calibration fails, the screen will turn red. For details, see Section 13
Troubleshooting Guide.
5.1
Power on and remove the probe cap. Press to switch to EC
measurement mode. Rinse the probe with clean water and shake-
dry, then submerge it in the 2.77 EC standard solution; shake the
probe in the solution up and down for a few seconds to remove
potential air bubbles, then let it stand.
5.3
icon will show up on the lower left corner indicating the tester is
successfully calibrated. will disappear in 30 days after calibration,
reminding you to re-calibrate EC. We recommend calibrating the
EC once every month to ensure the accuracy. If you feel like the
accuracy might be off, simply test the standard solution (make sure
the standard is fresh and clean). If the reading is greater than 2.8 EC
or smaller than 2.7 EC, then it’s time to calibrate again.
5.2
Hold until screen turns green. The pen starts automatic
calibration. Wait for "Good" to show up (in 10-15 seconds),
indicating the calibration is completed, then the pen returns to
measurement mode.
5.4
If the calibration fails, the screen will turn red. For details, see
Section 13 Troubleshooting Guide.
2.77
EC
2.77
EC
03
04
05
04
05
pH Calibration
pH Measurement
EC Calibration
