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Old 11-01-2011, 11:29 PM   #1
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Default Panel meters exposed to the weather

We are having problems with Crompton meters getting moisture inside of the meter face-plate. The application is for a large control panel for a grain elevator setup; exposed to the elements.
Is there a better brand of meters that I should be purchasing?
Has anyone tried to use a layer of silicone over the edge of the face-plate to keep moisture out?
Is it crazy to drill a tiny weep-hole in the bottom of the face-plate?
thanks,
Rick
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Old 11-01-2011, 11:46 PM   #2
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Quote:
Originally Posted by subelect View Post
We are having problems with Crompton meters getting moisture inside of the meter face-plate. The application is for a large control panel for a grain elevator setup; exposed to the elements.
Is there a better brand of meters that I should be purchasing?
Has anyone tried to use a layer of silicone over the edge of the face-plate to keep moisture out?
Is it crazy to drill a tiny weep-hole in the bottom of the face-plate?
thanks,
Rick
Not at all.

A weep-hole will only help.
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Old 11-02-2011, 04:31 AM   #3
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I'm yet to have any moister infiltration/condensation issues with Redington solid state hour meters.
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Old 11-02-2011, 05:43 AM   #4
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Not at all.

A weep-hole will only help.

I always love your bad advise.
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Old 11-02-2011, 08:35 AM   #5
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Quote:
Originally Posted by subelect View Post
We are having problems with Crompton meters getting moisture inside of the meter face-plate. The application is for a large control panel for a grain elevator setup; exposed to the elements.
Is there a better brand of meters that I should be purchasing?
Has anyone tried to use a layer of silicone over the edge of the face-plate to keep moisture out?
Is it crazy to drill a tiny weep-hole in the bottom of the face-plate?
thanks,
Rick
Maybe something like this.

http://stevenengineering.com/Tech_Su...DFs/33SACC.pdf
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Old 11-02-2011, 09:26 AM   #6
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I agree, the covers are about the only viable solutions. Most of the enclosure manufacturers have them now. Meter mfrs don't think meters should be exposed to weather so they don't make them avialable for that.
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Old 11-02-2011, 09:27 AM   #7
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Quote:
Originally Posted by subelect View Post
We are having problems with Crompton meters getting moisture inside of the meter face-plate. The application is for a large control panel for a grain elevator setup; exposed to the elements.
Is there a better brand of meters that I should be purchasing?
Has anyone tried to use a layer of silicone over the edge of the face-plate to keep moisture out?
Is it crazy to drill a tiny weep-hole in the bottom of the face-plate?
thanks,
Rick
It sounds like it is condensation but in either case I would try another brand of meter.
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Old 11-02-2011, 12:30 PM   #8
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What's the model number of the meter you're using? I don't think the Cromptons with buttons on the front are rated for NEMA 4.

I've had good success with Omega meters. We've had them in wet locations for years with no issues.

-John
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Old 11-02-2011, 04:25 PM   #9
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i just use control panels with window on them like that
http://www.hammfg.com/pages/s2_corro...snptwstwin.htm
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