3 people have been asking if they can use a 3 clamp HEM G2 to measure 3 different power sources like lamps etc and also 3 different live lines. It does not work like that. I have a 3 phase HEM and tried to use it as a 1 phase meter in the UK (230V) single phase. I was getting incorrect readings from my meter when using one of clamps in the fuse box that has the live wire going in to the house.
I asked Aeon about using the 3 phase meter as a 1 phase meter and this is the response i got.
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Hi evoke,
I believe you have bought the wrong product, if you are trying to install a 1 phase device, you will need to look for the HEM G2 1 phase.
The current HEM G2 you have is a 3 phase 4 wire which you should be able to confirm on the back of the HEM G2 you currently have.
Having the wrong version will give you wrong readings on the total kwh readings as there are different calculations.
The kwh, watt, voltage, and amp are all read from the clamps and calculated in the HEM.
Let me know if you have any further questions.
Cheers,
Chris
Message Body:
Hello Aeotec,
I bought a Z-Wave Home Energy Meter Edition 2 with 3 phase from you. I wanted to use it in single phase mode in the EU. I looked at the instruction manuals on how to do that.
In the diagram in the manual for using the meter in 1 phase it looks like the lead 1 is used to power the meter. From messing around i found out that lead 3 is used to power the meter. Was this the correct lead? If i use lead 3 does that mean i have to use clamp 3 as well to get a proper reading in 1 phase? or do i use clamp 1 for 1 phase?
Are KwH,watt ,amps and voltage all read from the clamps or is amps and voltage read from the extra leads that are not clamps? Like the power supply lead which only has 2 wires.
Regards
evoke
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How are you guys physically connecting your meters?
I've just received one of these in the UK (single phase 240V), I ordered the 3 clamp version and was expecting the battery powered one with just the clamps on, so I could monitor 3 separate loads. In my house I have the main electricity feed split between house and workshop, I currently use a currentcost to monitor the total, house and workshop separately. I was hoping to replace the currentcost with the Aeon.
This GEN2 version has 3 clamps and 3 bare 2-core flex on it, and seems to actually be aimed at a 3 phase installation. Anybody know if / how I can make it work in my situation?
Thanks,
Martyn
Hi
excuse me for my english 
I have the 2 clamps european edition of this meter. I live in Spain (1wire+neutral). Standard voltage at 230v.
My power meter works perfectly.... at half load.
If I put for example a 150w lamp, it detects only 75. Put the 40w lamps, detects only 20. etc.
I think the power meter is prepared to install with 2 clamps in the main line. In the instruction's picture explain how put this, but don't work me. I think the only solution is can change the main voltage (I supose 240v) to 380v, which is the main voltage between phases. But I can't discover how to change this (parameter 1 is not operative yet).
I think all the problems in this forum is for that... If somebody discover how to change, please comment how do it. pleeeeeeease....
Hello,
I have a Home Energy Meter G2 (2nd edition, version info : 3,3,67,1,5) with 3 clamps at home.
I live in France (230V), I have 1 phase power incoming only and I want to measure distincly the electric consumption on 3 separate phases to see the consumption of 3 different devices (for example : lamp, oven, boiler).
HEM is well recognized by Vera Lite and I see 3 different electric consumptions in Vera coming from 3 different devices. But the value is incorrect : I notice that the measured value is around 5 times lower than real value...
Do you have an explanation ? May be there are some specific parameters relative to my configuration to define ? (230V, 1 phase incoming, 3 different devices to be monitored by the 3 clamps)
Please help because I am lost !