YSI ProDSS Meter Calibration and Maintenance
K:\Streamkeepers\Monitoring\Eqpt & supplies\Calibration-Maintenance\SOPs\YSI ProDSS maint-
cal SOP's
25
Turbidity
1.
Loosen the retaining nut on the sensor using the removal tool, use fingers to finish removing the
retaining nut from the bulkhead.
2.
Remove the sensor from the bulkhead. Inspect the tip for dirt or debris, if it warrants cleaning,
see the
Maintenance
section above for proper cleaning techniques. Take care to not get the
exposed sensor connector end wet.
3.
Pat the sensor dry with Kimwipes or a lint-free, non-abrasive cloth.
4.
Place the red cap onto the sensor connector end.
5.
Place the clear plastic cap onto the end of the sensor.
6.
Place the sensor into its designated long term storage container.
pH
1.
Loosen the retaining nut on the sensor using the removal tool, use fingers to finish removing the
retaining nut from the bulkhead.
2.
Remove the sensor from the bulkhead. Inspect the tip for dirt or debris, if it warrants cleaning,
see the
Maintenance
section above for proper cleaning techniques. Take care to not get the
exposed sensor connector end wet.
3.
Pat the sensor dry with Kimwipes
only
.
4.
Place the red cap onto the sensor connector end.
5.
Take out the storage bottle, “open” lid and o-ring from the storage box.
6.
Carefully slide the “open” lid with the o-ring placed inside the lid onto the sensor until it is about
1” up the sensor.
7.
Remove the storage cap on the storage bottle. Place the tip of the sensor into the bottle and
screw the “open” lid onto the bottle so that the sensor tip is submerged in the buffer 4 solution.
Do not let the sensor tip touch the bottom of the bottle.
8.
Place the sensor and the storage cap into its designated long term storage container.
Dissolved Oxygen
1.
Loosen the retaining nut on the sensor using the removal tool, use fingers to finish removing the
retaining nut from the bulkhead.
2.
Remove the sensor from the bulkhead. Inspect the tip for dirt or debris, if it warrants cleaning,
see the
Maintenance
section above for proper cleaning techniques. Take care to not get the
exposed sensor connector end wet.
3.
Pat the sensor dry with Kimwipes or a lint-free, non-abrasive cloth.
4.
Place the red cap onto the sensor connector end.
5.
Wet the yellow sponge located in the plastic cap, do not soak the sponge, just wet it until it
becomes moist but is not dripping water.
6.
Place the plastic cap with the sponge in it over the sensor tip.
7.
Place the sensor into its designated long term storage container.
