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• Rinse outside of sensor with deionized water.
• Invert sensor and inspect. There should be no bubbles or debris between the membrane and sensor
body.
EC and EC/Turbidity Sensor Preparation
The EC and EC/Turbidity sensors do not need to be soaked or hydrated before use. Use the small brush
included in the probe maintenance kit to clean and loosen any debris before using.
Ammonium Sensor Preparation
Remove the shipping cap and inspect sensor. Verify no air pockets have developed near the
ceramic junction during shipping. Hold the sensor at the connector and shake it down (like a
mercury thermometer). Condition the sensor by soaking it in a small amount of HI9829‑10,
10 ppm NH
4
+
‑N standard for at least a 1/2 hour.
Chloride Sensor Preparation
Remove the shipping cap and inspect sensor. Verify no air pockets have developed near the
ceramic junction during shipping. Hold the sensor at the connector and shake it down (like a mercury
thermometer). Condition the sensor by soaking it in a small amount of HI9829‑12, 10 ppm Cl¯
standard for at least a 1/2 hour.
Nitrate Sensor Preparation
Remove the shipping cap and inspect sensor. Verify no air pockets have developed near
the ceramic junction during shipping. Hold the sensor at the connector and shake it down (like a
mercury thermometer). Condition the sensor by soaking it in a small amount of HI9829‑14,
10 ppm NO
3
¯‑N standard for at least a 1/2 hour.
SENSOR PREPARATION/ACTIVATION
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