EKM - 25EDS - N v.2 - Correct wiring for UK Single Phase 240

[stelip]

Hi,

I want to check that I have wired my meter up correctly for the UK 240v single phase supply.

Here is what I have

Single CT connected into the terminals 1/2 Monitoring the Live (L)
NO CT connected to terminals 3/4

Live connected to 7
Neutral connected to 8

The meter shows the correct voltage ~245-250
The amps looks correct.

It seems to be working correctly, Except that it dosn't appear to be tracking the utility meter.

Best regards
Steve

[Jameson]

Hello Steve,

I assume that you have the old EKM-25EDSP-N (considered a North American meter, though it can be fudged to work with your power) is this correct? Or do you have the EKM-23EDS (this meter is for foreign 2-wire systems)?

Thanks,

[stelip]

Hi,

Its the EKM-25EDSP-N

(Wanted this one as two of the pulse counts are connected to east/west solar arrays AC100 meters)

Have I got the fudge correct the N/L into the 7/8 pins?
Thanks

[Jameson]

Steve,

The 25EDSP-N is designed as a US power meter (we have replaced this meter with the Universal Omnimeter Pulse v.4 that will work with any system in the world)

In order to have the 25EDSP-N work on your UK 230 volt 2-wire system, you will need to use 1 CT (it sounds like you have your meter connected properly) and you will need to DOUBLE the kWh value the meter reports.

Let us know if this helps.

[stelip]

Hi Jameson,

Doubling the value looks much closer than before. I will run a few tests over the next few days to let you know how it goes. Presumably I also need to double the reverse KWh.

Many thanks.