โNov-01-2016 06:12 AM
โNov-06-2016 10:29 AM
pianotuna wrote:
I generally dial down the input amperage to 80% of the rated value. (24 amps on a 30, 12 amps on a 15). I don't "dial down" when plugging into a 50 amp source, as I have a break out box that extracts one 30 amp and two 20 amp circuit breaker protected outlets.
โNov-06-2016 07:48 AM
โNov-06-2016 04:21 AM
pianotuna wrote:
Hi J-d,
That is why I load the outlet with a 1500 watt device when I'm testing.
โNov-05-2016 10:25 AM
j-d wrote:I sure can see the usefulness of a 50 amp pedestal tester in that situation. A guy could park in the driveway, go to his spot, and then test the pedestal before backing or pulling in.
It's clear from the context of the question, and from the responses, that it's 30-Amp service in question. The plug-in using Adapter, Polarity Tester and AC Meter are the way many of us go.
There IS a thread somewhere about a home made 50-Amp tester. It's two of the 30-Amp in most ways, connected to a 50-Amp plug, but with a big difference. This one looks at the polarity of the two 50-Amp legs that make up this service, and verfies there's a Neutral. That's important to anybody who plugs into a 50-Amp outlet. Whether it's a 50-Amp coach, or just the rest of us using a 50-to-30 Adapter.
I don't want to plug in, let alone even back in, till I know that outlet is right! Campground can fix it, move me, or refund me.
We still don't know if a pedestal breaker has "gone soft" but at least we won't burn something out or get shocked, if we lead off with a Tester.
โNov-05-2016 08:08 AM
โNov-05-2016 05:41 AM
โNov-05-2016 04:34 AM
SoundGuy wrote:
Both of these statements infer that the Progressive EMS unit is using this 136" time delay to analyze the input signal before deciding it's stable enough to pass along to the trailer. This is incorrect as the analysis takes no time at all - ..... snip
time2roll wrote:
My question to Progressive:
Still curious on an intermittent error. If the voltage or ground briefly drops every 60 seconds does the EMS reset the timer at each error? Or does it connect at 136 seconds and wait for the next error before disconnect? Thank you
Today from Progressive:
If the voltage falls below 104 Vac for more than 6 seconds, the EMS will disconnect. A loss of ground will cause an instantaneous disconnect. When an error occurs and then the cause clears, the time delay starts. In your example, if the error occurs every sixty seconds, power would not be restored, because the delay would be resetting to zero each time.
My Comment: This is in effect monitoring of the connection for the entire 136 seconds. Power and connection must remain stable within specs for the entire delay timer or timer resets. I understand the effect is to have power off a minimum time for the air conditioner internal pressure to bleed down.
โNov-04-2016 10:02 PM
time2roll wrote:
Today from Progressive:
If the voltage falls below 104 Vac for more than 6 seconds, the EMS will disconnect.
My Comment: This is in effect monitoring of the connection for the entire 136 seconds. Power and connection must remain stable within specs for the entire delay timer or timer resets. I understand the effect is to have power off a minimum time for the air conditioner internal pressure to bleed down.
โNov-04-2016 08:17 PM
SoundGuy wrote:
Both of these statements infer that the Progressive EMS unit is using this 136" time delay to analyze the input signal before deciding it's stable enough to pass along to the trailer. This is incorrect as the analysis takes no time at all - ..... snip
โNov-04-2016 09:29 AM
SoundGuy wrote:
Both of these statements infer that the Progressive EMS unit is using this 136" time delay to analyze the input signal before deciding it's stable enough to pass along to the trailer. This is incorrect as the analysis takes no time at all - rather, delay is set at 136" in order to protect an A/C compressor, preventing it from restarting until head pressure has diminished to a safe level. Progressive EMS delay for the portable versions is fixed at 136" but delay for the hard wire versions can be shortened to a more convenient 15" by removing an internal jumper. I took this one step further with my own EMS-HW30C by wiring in an SPST switch in place of the jumper so I can simply switch between the two delay times, 15" or 136", rather than have to open the case and fool with the jumper. :B
time2roll wrote:
OK and say intermittent fault every 30 seconds. Does not the timer reset each time?
Or does PEMS just check the instant the timer expires and calls good or no?
โNov-03-2016 09:06 PM
โNov-03-2016 08:10 PM
โNov-03-2016 07:49 PM
SoundGuy wrote:OK and say intermittent fault every 30 seconds. Does not the timer reset each time?
Both of these statements infer that the Progressive EMS unit is using this 136" time delay to analyze the input signal before deciding it's stable enough to pass along to the trailer. This is incorrect as the analysis takes no time at all - rather, delay is set at 136" in order to protect an A/C compressor, preventing it from restarting until head pressure has diminished to a safe level. Progressive EMS delay for the portable versions is fixed at 136" but delay for the hard wire versions can be shortened to a more convenient 15" by removing an internal jumper. I took this one step further with my own EMS-HW30C by wiring in an SPST switch in place of the jumper so I can simply switch between the two delay times, 15" or 136", rather than have to open the case and fool with the jumper. :B
โNov-03-2016 07:29 PM