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First create your user on the register page. Then do the order on the product webpage
. Please add your user name when you do the order. The device will be assigned to your username
from that moment on. Write us or call if you have any problem doing it.
Yes, of course. The devices will be assigned to the username requested by the owner.
It's possible later to change the username in case the device gets a new owner. Your ID document is asked to clear
any miss understandings for all persons involved. Contact the support, yoy will get all the help you need.
On "My ePower" section then "Device". You can configure there the Imp/KWh,
enable each channel, get friendly names for the device and sensors.
Device must have power to work. The only way to work is to have a UPS sourcing the device.
In that situation, samples data will be sent to server sooner or later.
Yes. Costumer's data is our priority. You have our word. On the next 18 hours after an
internet break the device will store all samples with the same precision. The samples will be sent to the server
as soon as the internet links comes up.
Normally 9 hours is enough. But it's up to the costumer do choose.
Yes. It's better to have a good internet link. The user knows the delay of the last sample
for each sensor on the real time tool on "My ePower" section.
It would be more simple to install the system that uses current transducers. However,
with those systems you will get different information.
Costumer shell be clarified witch information he gets.
The current sensor systems get apparent power measurements (Pap). The bill from utility company
won't ask you to pay this power. Thhat means the utility meter installed on electric power distribution
wall does not count for that.
On other hand, our ePower solution measures the power/energy that goes through any electric meter
that has a flash/led. Those flash/led meters get real power/energy measurements (Prel), the one that
comes on the end user bill.
Costumer who uses the current sensor systems will get wrong measurements because they are not getting real
power samples but apparent power instead.
The difference between Pap and Prel depends on each equipment used inside the user power grid each second.
Air conditions, motors and any equipment with inductors will generate big amounts of apparent power,
for example.
It's very simple. the sensors have glue strip attached. Just remove the paper form the
strip and glue each one to the counters.
You can see pictures as example:
It depends on the machines you have connected in your power grid.
To be clear Pap is measured in VA and Prel in W.
You can see a graph bellow where those 2 powers were measured in a Portuguese house as example.
The above measurements were done on a house with 500W solar panels installed with and 2 x 250W grid tied inverters.
Moreover, this house has other equipments like: roof lights, 1 microwave, dish and cloths washing machines,
1 fridge, electric heaters, electric cooker, electric oven, 1 a/c , several computers, mobile phone chargers
and so on.
We have samples during 12 hours.
Conclusion:
1- As you can see, there are moments where those 2 powers are different. The yellow line shows this
difference.
This is first error: the real time power.
2- Next we calculate the energy spent during those 12 hours, we got Real Energy 6662,2Wh
and Apparent Energy: 6824.4VAh. If we consider that VAh=Wh (as you do for systems that use
current transducers only) the difference between those 2 measurements is 162Wh.
That's the second error: energy calculated.
It could not be guessed how big this errors would be if those measurements were done on other day or in
a big time range window. The reason for that it's related with the kind of equipment used
and how many time they will be on your power grid.
PS: The measurements above were done using a Power Meter UT233 from UNI-T.
You need install one counter with flash/led for each branch you want to measure.
For example, those ones do Real Power measurements
and they have flash-led.
It's explained in user manual. The user manual will be available as soon as you buy the
device in your "My ePower" section.
The time gauge is 15 seconds. For the precision, our device calculates power,
energy and cost when it detects a flash led. On very low power situations (ex. P<100W if Imp/KWh=2000)
the time between flashes can be minutes or hours. On those situations the power calculated will suffer an
aproximation and will be updated on the next samples as soon as it gets the next flash from the counter.
About the graphs, the 15Min. time range shows all samples as they were received from the device. On
other time ranges (hour, week and month) it's done a re-sample reduction and average it so that user gets a
good usability experience.
It's summed up all power samples from the start date until end date, as it's
configured on "Rates" section. After this it's multiplied by 15 sec time fraction (converted to hours).
If you want to count for injected power feed in public grid, please select "Difference" channel and
enable that option. On that situation it will sum up all samples when channel "Y">"X".
Otherwise it's ignored those samples.
Yes, you can choose how many channels you want the device and it will be sent
as your request. In config. section, you can disable the channels you do not use.
You can see how many devices you have on "My ePower" section.
You have access to graphs, download .CSV files and configuration for each device after you select it.
It was done by ecoMotores.com.
Both the electronic device that gets the samples and this data management platform you are acessing. This is
one of their several creations. You can contact them at "Contacts" section on this website.
Yes. If you did wrong measurement or just want some samples to be removed,
please drops us an email explaining that and the time range you want to be removed. You will get this done.
Yes, it's possible. You will get an assessment done on your requests to find in what way
you can have what you need. Drop an email to support to discuss this with.
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