Maintenance Of The Dilution Probe; Charcoal Filter; Inlet Filter - PerkinElmer Photovac 2020 Manual

2020 Software Manual
WARNING

Maintenance of the Dilution Probe

Charcoal Filter

The charcoal filter will remove hydrocarbon contaminants for up to
4000 ppm-hours. This means that the filter will last for 1 hour
removing 4000 ppm of hydrocarbon contaminants or will last for 4
hours removing 1000 ppm. The exact time will be determined by the
operating environment. You will notice an increased hydrocarbon
background when the filter requires replacement.
To replace the charcoal filter:
When the dilution probe is not in use, place the charcoal filter in its
plastic bag and store it in a clean, dry place.

Inlet Filter

The dilution probe is equipped with a dust filter to reduce detector
contamination. As the filter collects dust, the inlet flow rate and
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4. Calibrate all Cal Memories, that you are using, and then
continue normal operation.
Do not operate 2020 without an inlet filter.
1. Loosen, but do not remove, the 1/4" compression fitting
on the dilution probe zero air inlet and remove the
charcoal filter from the dilution probe. See Figure 20.
2. Slide the replacement charcoal filter tube into the
compression nut. (Part No. MX395067 or 395064).
3. Finger-tighten the nut. Then use a wrench to tighten the
nut 3/4 of a turn further. This will compress the ferrules
onto the tube.