Norma Icon-5 - Step 2: Replacement of aperture rubber valve; Aperture rubber valve replacement procedure; Remove metal shield; Detach aperture module

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TDMG0002 Icon-5 Maintenance Guide – Version: 02 – Release date: 2020-04-27
Step 2: Replacement of aperture rubber valve
Frequency:
1 year or 10,000
samples
part#: HAT809A (Included in kit)
The rubber valve keeps the measuring apertures free of unwanted air and regulates liquid
flow during different stages of the measurement process.
If the rubber valve gets contaminated, then it will not be able to close properly, and false
air may enter the aperture module that will result in erroneous measurements and “Noise”
errors.
Remove the metal shield
Pull the aperture module away from the
amplifier block