What volume of filling solution should be dispensed into the ISENH3181 membrane module when replacing the membrane?

Dokument-ID

Dokument-ID TE2792

Veröffentlichungsdatum

Veröffentlichungsdatum 20.12.2021
Frage
What volume of filling solution should be dispensed into the ISENH3181 membrane module when replacing the membrane?
Zusammenfassung
Membrane filling solution volume.
Antwort
The fill solution used for the ISENH3181 membrane module is 0.1 M NH4Cl. No more than 0.5 mL or 12 drops of Filling Solution, ISENH3181, 0.1 M NH₄Cl, 50 mL (Product # 4447226) should be used. Overfilling the membrane module can create a leak path between the membrane module o‐ring and the probe body. This can lead to stabilization issues and long response times.

NOTE: this is a different recommendation than stated in the manual of the Hach sensION ammonia ISE, where excess fill solution and overfill of the membrane module were acceptable. Excessive filling of the membrane module can be problematic for the IntelliCAL™ ISENH3181 Ammonia ISE.

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