Comments on: Compressed air fail: Dryer dewpoint controls /compressed-air-fail-dryer-dewpoint-controls/ Tips, Trends, Resources, News and Information Fri, 01 May 2020 13:27:39 +0000 hourly 1 https://wordpress.org/?v=7.1.2 By: Dominic Labrosse /compressed-air-fail-dryer-dewpoint-controls/#comment-386816 Fri, 01 May 2020 13:27:39 +0000 /?p=7092#comment-386816 I know this dryer and if they turn the knob to Autodew (1), they will lose the dewpoint. This is why they leave it in the fixed cycle position. To insure proper dewpoint. This type of analyser requires maintenance every 2 weeks approx. The probe is made out of glass and two platinum wires wound around them. You must condition them with fluoric acid every two weeks. To do so, you must disconect the proble, clean it gently with a tooth brush and rubbing alcool. Let it dry. Then with a small pintch dropper add a few drops of acid on it. Plug it, push the test switch on the electronic board that will boil off excess humidity and set the acid. Then put the probe back in its sampling shell.

The problem.is that this probe is maintenance intensive and people ztops doing it and when it fails, it fails in the dry position. If you really want something safer for dew point control, I’d replace the aurodew system completely. But price vs dryer size is not worth it. Change for a ŕefridge as mentionned and a point of use for tge external lines.

Note, Xebec stopped making these types of autodew controls around 2000. I was the service manager at that time there.

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