Hach HIAC HRLD-100 Manuel D'utilisation page 11

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10. Install the sensor on the sampler configured in the original orientation
(inlet/outlet ports). Make sure that the system has no leaks. Prepare
the sensor for oil applications, if necessary.
11. Repeat this procedure, if necessary.
Note: If the cleaning process has been completed three times without
satisfactory results, contact technical support for a sensor microcell overhaul.
Refer to the counter and sampler operation manuals for the proper
start-up procedure.
Figure 7 Prepare cleaning solution
Figure 8 Clean the sensor with floss
Clean a blocked microcell
Do the steps that follow to clean a blocked microcell.
1. Remove the sensor.
2. Install the sensor in the opposite direction of the flow path
3. Flush the microcell with 20 mL of clean, particle-free water that is
miscible with the sample solution in the microcell. If the sampler
stops while the microcell is flushed, proceed to step 5.
(Figure
9).
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