Hach NITRATAX sc Manual De Instrucciones página 12

Maintenance
5.2 Clean the measuring path
Normal operation of this device may require the use of chemicals or samples that are
biologically unsafe.
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Additional cleaning of the measuring path is not necessary if the wiper interval is set for
the appropriate application and the wiper profile is replaced regularly.
To clean the measuring path:
1. Select Menu.
2. From the Main Menu, select Sensor setup and confirm.
3. Select the appropriate sensor, if more than one sensor is attached and confirm.
4. Select Test/Maintenance and confirm.
5. Select Maintenance and confirm.
6. Confirm the displayed Output modeinformation.
7. Select Signal and confirm.
8. Confirm to activate wiper.
9. Remove sensor from the tank. Depending on the degree and nature of the soiling,
10. Soak for 5–10 minutes, then carefully clean the measuring path with distilled water.
11. Press Back to return to Maintenance.
12. Press Back again. Confirm Put the sensor back into the process. (Measuring
13. The cleaning of the measuring path is completed.
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Potential danger with contact with chemical/biological substances.
Working with chemical samples, standards and reagents can be dangerous.
Make yourself familiar with the necessary safety procedures and the correct handling of the
chemicals before use and read and follow all relevant safety data sheets.
Observe all cautionary information printed on the original solution containers and
safety data sheets prior to their use.
Dispose of all consumed solutions in accordance with the local and national
regulations and laws.
Select the type of protective equipment suitable to the concentration and quantity of
the dangerous material being used.
clean measuring path using window cleaner, grease remover or 5 % hydrochloric
acid (the operation of the wiper arm using [Wiper test], [Activate wiper] can assist the
cleaning process).
Objective: [ER] and [EM] < 500
operation after automatic wiping).
D A N G E R
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