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Old 06-05-2013, 04:31 PM   #1
fivestarcamping
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Progressive EMS-HW50C

Installed Progressive's EMS-HW50C in camper. Currently using 30 Amp adapter for power at home. Unit shows correct display for single leg operation. EMS Unit has low humming noise, is this normal? I don't recall reading anything on this when researching.
 
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Old 06-05-2013, 05:46 PM   #2
Farmhawk
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It is normal to have a slight hum or buzzing sound.
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Old 06-05-2013, 05:51 PM   #3
mamestra
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Yep it is normal, the readings are a great help when you are on 30 amps and have to balance what you are using.
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Old 06-06-2013, 03:05 AM   #4
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It's doing what it's supposed to. You'll love the useful info you get, particularly when your on 30amps.
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Old 06-06-2013, 03:34 AM   #5
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Quote:
quote:Originally posted by fivestarcamping

Installed Progressive's EMS-HW50C in camper. Currently using 30 Amp adapter for power at home. Unit shows correct display for single leg operation. EMS Unit has low humming noise, is this normal? I don't recall reading anything on this when researching.
Your EMS does not pass power immediately. When the timer says, "ok apply power" it sends a voltage to the relay (that clunk you might here). The relay closes and passes power. They humming you hear is probably the relay staying closed.
Good question. Hope this helps.
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Old 06-06-2013, 05:23 AM   #6
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Thanks for everyone's reply. Do I get any "Kohl Points" for direct response to my question?
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