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Old 08-31-2012, 08:46 PM   #31
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Quote:
Originally Posted by herk7769 View Post
It bears repeating that most high end surge suppressors will protect you from a severe brownout (by disconnecting you from the power source). BUT, some high end ones won't automatically reconnect you when the power plumps up. (check whether yours will) You should always keep your propane open because if you brown out shutdown your propane will keep your food cold till you get back.

The surge suppressor will also protect you when power returns rapidly (a surge spike). This is typical when a brown out is not severe enough (or long enough) to trip you off line; yet has a spike coming back up.
Lou and others - I checked the on line Surge Guard Model 34750 manual (I couldn't cut and paste it) and here it what it says:

"Time Delay Indication - Once power is restored to a safe range, the red light will flash for 128 seconds before power is restored to the RV. This allows head pressure to bleed off the A/C compressor."

So I believe that this SP will restore power if and when it nay be interupted.
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Old 08-31-2012, 08:47 PM   #32
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Here is the features of my Power Monitor System

Here is the features of my Power Monitor System


EMS-LCHW50
Surge Protector with Voltage Protection
Hardwired for 50amp RV's



High/Low Voltage Protection: Whenever AC power falls below 104 volts, or rises above 132 volts, the EMS automatically shuts down power to the RV. The EMS will monitor the power and once the AC power rises above 104 volts, or below the 132 volt level, the time delay indicator flashes for the preset time and then automatically restores power to the RV.

Time Delay for A/C Compressor:If the AC power isinterrupted, or the EMS detects a fault condition, the built-in time delay is activated. There are tow settings on the EMS: one is 136 seconds (02:16), and the other is 15 seconds. Consult your air conditioner manual to see if it has a time delay built in. If so, use the 15 second delay, if not; use the 136 second delay. The factory setting is 15 seconds.

5-Mode Surge Protection: This feature provides full surge protection L-N, L-N, L-G, L-L and N-G. Total Joule rating is 3,580, 88,000A surge current. Response time of <1 nano second.

Surge Indicator: In the event of a power surge, and the surge protector circuit is damaged within the EMS, L-N or L-G, the digital display error code will read E-10. This indicates the EMS needs to be serviced.

Reverse Polarity Protection: If AC power is a reverse polarity condition, the EMS will not allow power to the RV and the error code will read E-1.

Open Neutral Protection: If AC power has an open neutral condition, the display will not light, and the EMS will not allow power to the RV.


Open Ground Protection:
If AC power has an open ground condition, the EMS will read an error code of E-2 and power will not be allowed to the RV.


AC Frequency Protection:
If AC power frequency deviates +/- 9 hertz from 60 cycles per second, the EMS will shut down power. An error code of E-7 will be displayed when the frequency is high; and an error code will be displayed when frequency is low.


Accidental 240V Protection:
If 240 volts is detected when plugging into AC power, the EMS will NOT allow power to the RV. If this condition occurs while power is applied to the RV, the EMS shuts off power instantly. The display will read the voltage and E-3 for the error. (NEVER BYPASS THE EMS WHEN THIS OCCURS.)


Display:
Continuously scrolls all of the AC power information, including voltage, current, frequency, error codes and previous errors. Each reading is displayed for two (2) seconds.


Previous Error Code:
This feature tells the user what the previous error was and why power was interrupted to the RV. To read a previous error code, put a "P" in front of the "E" code. This is only displayed if an actual error occurs. The error is deleted when power is disconnected from the EMS.


Bypass:
Enclosed blue jumper wire allows the user to bypass the computer circuit in the EMS in the event of computer failure, thus allowing AC power into the RV. This does not disable the surge protection portion of the EMS; however, all other features are disabled.


Modular Design:Replacement parts are designed for simple plug and play, making repairs extremely user friendly.

Microprocessor Controlled:The computer is driven by a state-of-the-art microprocessor that is programmed with software to drive the entire EMS.

Can't think of much else it should do except maybe wake me up at night.

I picked it up online at Camping World for $254.47 (dropped shipped) with free shipping
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Old 08-31-2012, 08:50 PM   #33
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So it appears that your model SP will also restore power once it returns to a safe level.

Good
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Old 08-31-2012, 08:51 PM   #34
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Both of those units are fine. I would still keep the propane available in case the campground power goes down. It did at the KOA I stayed at in July for 4 hours while we were away at the National Park. Lots of folks freaking out when we got back and the campground host was handing out ice like crazy.

Ours went into the Mojitos.
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Old 08-31-2012, 11:50 PM   #35
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Iggy, thanks for the post on the Progressive Industries product.
Their 30 amp EMS unit would be something I could install myself in my Sunseeker.
Lou - Once my unit is set for travel I leave my propane on. Saved my bacon literally back in June when the Derecho (storm) knocked out power here in Roanoke.

Chris in Virginia
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Old 11-26-2012, 06:46 PM   #36
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Sale on Surge Supressors

Camping World has an internet sale going on and surge suppressors are on the list.

Portable Surge Guards With LCD Display - Product - Camping World

You all know I am a big fan of Franks Autotransformers with integral surge suppression, but if that is too rich for your blood; you might want to order from CW during this sale.
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Old 11-26-2012, 11:23 PM   #37
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Quote:
Originally Posted by herk7769 View Post
Camping World has an internet sale going on and surge suppressors are on the list.

Portable Surge Guards With LCD Display - Product - Camping World

You all know I am a big fan of Franks Autotransformers with integral surge suppression, but if that is too rich for your blood; you might want to order from CW during this sale.
That is a sale indeed. I brought the 34750 model (50 amp) earlier this year at CW and paid about $345.00.
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