Figure 15.
Inline Probe Cleaning Solution Kit
To clean the ST-565 Series probe, soak the lower half of the probe in 100 mL inline probe cleaning solution
for 10 minutes. Rinse the ST-565 Series probe with distilled water and then check for the flashing blue light
inside the ST-565 Series probe quartz tube. If the surface is not entirely clean, continue to soak the ST-565
Series probe for an additional 10 minutes. Use the small, soft bristle brush and Q-Tips cotton swabs as
necessary to remove any remaining contaminants in the ST-565 Series probe quartz tube.
8.2
Storage
Avoid long term storage at temperature over 100 °F. In an outdoor installation, properly shield the ST-565
Series probe from direct sunlight and precipitation.
9
Troubleshooting
If the ST-565 Series probe output signal is not stable and fluctuates significantly, make an additional ground
connection –– connect the clear (shield, earth ground) wire to a conductor that contacts the sample water
electrically such as a metal pipe adjacent to the ST-565 Series tee.
Carry out routine calibration verification against a qualified Halogenated Tolytriazole (HST with ST-565) or
Tolytriazole (TTA with ST-565T) standard. After properly cleaning the ST-565 Series sensor, carry out the zero
point calibration with distilled water and slope calibration using the qualified standard. Pyxis Lab
HST Cal-
ibration Standard
can be purchased at our online Estore/Catalog
https://pyxis-lab.com/product/halogen-
stable-triazole-calibration-standards/
. Pyxis Lab
TTA Calibration Standard
can be purchased at our online
Estore/Catalog
https://pyxis-lab.com/product/tta-standards/
ST-565 Series User Manual
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