Prepare a clean 200 ml beaker with a diameter of about 7 cm. (Do not use the small
beaker provided with the monitor, it is for fluid level measuring only). Fill the beaker with
ozonated water, remove the protector from the sensor and immerse 5 cm of the sensor.
Press the "ON / OFF" button.
Press the "TEMP." button to display the water temperature (the default display unit is ℃,
press the “down” key ▼ to switch to ℉). At this important step the monitor will take the
water temperature into account for the ozone concentration measurement.
Wait about 60 seconds, until the temperature display does not change any more, then
press "TEMP." button again to go back to the concentration mode.
If the monitor has not been used for more than one day, leave the sensor in the beaker
with ozonated water for another 2 minutes and press the "ON / OFF" button. Alterna-
tively, rinse the sensor with ozonated water for 2 minutes and press the "ON / OFF"
button. (This step 5 can be omitted if the monitor has been used within 24 hours)
Press the "SET" button for 2 seconds under the common mode.
Press the arrow keys until the numerical value displayed next to the small cup at the
bottom left of the display (Concentration Setting) shows 0.
Press the "SET" button again to exit.
Once again, fill the 200 ml beaker up with fresh ozonated water.
Completely submerge the sensor in the fresh ozonated water and rapidly shake the
sensor back and forth 5 cm (six to eight times per second) without letting it touch the
beaker wall. Make sure that the sensor is submerged at least 2 cm at all times. The
concentration will be shown on the display.
Leave the sensor inside the beaker until the display shows a concentration of 0. Do not
move on to 12) before the display is 0.
Repeat steps 9), 10), and 11) to do a second measurement.
Repeat steps 9), 10), and 11) to do a third measurement. Read the display for about 15
seconds while shaking the sensor as described in.
The greatest value shown on the display during the third measurement is the ozone
concentration reading in parts per million (ppm). At the same time press the " ▼ " button
to memory the test result.(Note: Ignore the readings shown during the two previous
measurements).
After testing press the "set "button again to quit the memory mode.
Press the "ON / OFF" button, remove the sensor from the beaker, put the protector on,
and put the equipment back into the case.
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8
9
10
11
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When the ozone concentration in water is suspected to lie between 0 to 2 ppm, the
test steps are as follows: (If the actual concentration is higher than 2 ppm, the monitor
will indicate this by showing “EPP” on the display. If “EPP” is shown for at least 3
seconds, follow the measurement steps described on page 8)
Prepare a clean 300 ml beaker with a diameter of about 8 cm and put 100 ml tap water
inside.
Add 100 ml ozonated water into the beaker.
Measure the water temperature of the mixture by pressing the "TEMP." button. Then
pour the beaker content away.
Press the "SET" button.
Press the arrow keys "▲""▼"until the numerical value displayed next to the small cup at
the bottom left of the display (Concentration Setting) shows 1.
Press the "SET" button again to exit.
Press the "set" button for 2 seconds.
Once again, first put 100 ml tap water into the beaker and then add 100 ml ozonated
water.
Completely submerge the sensor in the fresh ozonated water and rapidly shake the
sensor back and forth 5 cm (six to eight times per second) without letting it touch the
beaker wall. Make sure that the sensor is submerged more than 2 cm at all times. The
concentration will be shown on the display.
Leave the sensor inside the beaker until the display shows a concentration of 0.
If the LCD display shows "EPP" for more than three seconds during step 9) or 10), then
the ozone concentration is above 4 ppm.
If no "EPP" is shown, pour the beaker content away and test a second time according
to steps 8), 9), and 10) above. Then, test a third time according to steps 8), 9), and 10)
and take the maximum reading of the third test as measurement result. Then, Press the
"ON / OFF" button, remove the sensor from the beaker, put the protector on, and put
the equipment back into the case.
If display shows "EPP" for more than three seconds, pour the beaker content away and
put 200 ml tap water into the clean beaker. Then, add 100 ml ozonated water. Measure
the water temperature of the mixture by pressing the "TEMP." button. Then pour the
beaker content away. Press the "SET" button. Press the arrow keys until the numerical
value displayed next to the small cup at the bottom left of the display (Concentration
Setting) shows 2. Press the "SET" button again to exit. First put 200 ml tap water into
the beaker and then add 100 ml ozonated water. Completely submerge the sensor in
the fresh ozonated water and rapidly shake the sensor back and forth 5 cm (six to eight
times per second) without letting it touch the beaker wall. Make sure that the sensor is
submerged more than 2 cm at all times. The concentration will be shown on the display.
Leave the sensor inside the beaker until the display shows a concentration of 0. Accord-
ing to the above-mentioned steps, do test 2 times more .Take the maximum reading of
the third test as the final test result.
After testing press the "set "button again to quit the memory mode.
Press the "ON / OFF" button, remove the sensor from the beaker, put the protector on,
and put the equipment back into the case.
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Under common mode ,press "▲" or "▼" to display the last test result.
Press "▲" to show the test result
Press "▼" to show the test result
Press "set" to quit the query mode
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Query test result:
Memory test mode
When the ozone concentration in water is suspected to be more than 2 ppm, or when
“EPP” is shown on the display for at least 3 seconds, the test steps are as follows:
