Using an oxygen probe correctly involves several key steps to ensure accurate and reliable dissolved oxygen measurements. Here's a breakdown:
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Insert the probe into the sample water. Gently lower the oxygen probe into the water sample you wish to measure.
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Move the probe to release air bubbles. After insertion, gently move the probe around in the water. This helps to dislodge any air bubbles that might be trapped on the sensor membrane, which can interfere with readings. Removing these bubbles ensures that the sensor is in direct contact with the dissolved oxygen in the water.
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Stir the sensor continuously (but gently). This is crucial. The oxygen probe consumes dissolved oxygen as it measures it. Therefore, a continuous and gentle stirring action is necessary to ensure a fresh supply of water, and thus dissolved oxygen, is constantly presented to the sensor. Avoid vigorous agitation, as this can introduce air into the sample and artificially inflate the readings.
In summary: Insert, debubble, and continuously (gently) stir for accurate oxygen measurements.
