How to connect the (D69-2049) to monitor the voltage and KWH to a NEMA-1450.

[ELVIS August 22, 2018 at 8:45 am Post count: 0]

#30171 Reply |

I have a NEMA-1450 installed. How did you connect this meter (D69-2049) to show 240v and kWh. I wanted to monitor my model 3 charging energy info billing purposes. Please if you can show how you connect the meter to the NEMA-1450. A picture of the diagram will help. Thanks

[DrokKeymaster August 24, 2018 at 9:12 am Post count: 2971]

#30181 Reply |

Hello ELVIS,

Thanks for writing in. We are nto sure what NEMA-1450 is, google shows it is a flush mounting receptacle.

Please kindly refer to the following wiring diagram, all of connections need to be based on it.

 

 

Best regards.

[Michael January 14, 2019 at 4:46 am Post count: 0]

#35365 Reply |

Hello,

I’ve enjoyed using Drok products in the past, they are a great value for their low price!

I recently purchased a DROK SKU: 200199 4-in-1 AC Voltmeter/Ammeter/Power Meter for use with a new NEMA 14-50 (240V) AC outlet for charging an electric car.   The voltmeter is working OK, but the Ammeter and Power Meter are NOT working.   The CT is connected to the blue terminals.

I have it connected as shown in the attached images.  Can you help identify why it is not working?

If you can help make it work, I will post images since many people may be needing a similar setup!

Thanks,

– Michael

  https://www.dropbox.com/s/heojg97psczuwzf/NEMA%2014-50%20outlet%20DROK%20wiring.png?dl=0

  https://www.dropbox.com/s/8b1bfd5qbebgwkh/charger%20display.JPG?dl=0

 

[DrokKeymaster January 14, 2019 at 8:55 am Post count: 2971]

#35369 Reply |

Hello Michael，

Thanks for writing in.

We are not sure  which wire goes through CT, is it neutral wire?

There are two hot wires in your system, but CT can only hold one wire and meter can only read one of them. You need two meters to check them separately.

In addition,  the green terminal should be connected to hot wire and neutral instesd of two hot wires.

Best regards.

[Michael January 14, 2019 at 4:37 pm Post count: 0]

#35371 Reply |

Thanks for your quick response.  I will adjust the connection to the green terminal.

Currently, the entire 4-wire bundle goes through the CT –  thus two hot wires, a neutral wire, and a ground wire go through the CT together.

[DrokKeymaster January 15, 2019 at 8:29 am Post count: 2971]

#35375 Reply |

Hello Michael,

CT can’t hold 4 wires, it is easy to  be damaged in that case.

Best regards.

[Décio silva February 19, 2019 at 1:54 pm Post count: 0]

#35536 Reply |

<p style=”text-align: center;”>Amigo, eu vou utilizar depois do inversor da placa fotovoltaica; é  220v. Entro com as duas fases na entrada desse medidor, ou seja, duas fases de 125 volts; Pode?</p>
Grato.

[DrokKeymaster February 20, 2019 at 9:27 am Post count: 2971]

#35545 Reply |

Olá Décio silva

Você poderia nos informar qual item quer dizer e mais detalhes sobre suas perguntas?

Cumprimentos.

[Elliott Whitken April 1, 2019 at 8:45 pm Post count: 0]

#35734 Reply |

Can the D69-2049 hold 2 hot 120v wires at once and read them?  Or is there a meter you make that can hold 2 hot wires and add the kilowatt hours to one readout?  This is for a Tesla charger.

[DrokKeymaster April 2, 2019 at 9:35 am Post count: 2971]

#35738 Reply |

Hello Elliott Whitken,

As per your description, we find out this item https://www.amazon.com/dp/B01MRZAFAF?ref=myi_title_dp

This meter work for single phase circuit, CT can only hold one wire. We are sorry so far we don’t meter can measure two hot wires.

For any more questions, please kindly let us know.

Best regards.

[Stein February 10, 2020 at 8:27 am Post count: 0]

#37436 Reply |

Is it possible to measure 400V, 3 phase with D69-204? (L1+L2+L3+N+Ground)

[DrokKeymaster February 21, 2020 at 10:27 am Post count: 2971]

#37486 Reply |

Hello Stein,

Is it this item? https://www.amazon.com/dp/B01MRZAFAF/ref=as_li_tl?tag=proeng-20

It can only work for single-phase circuit.

Best regards.

[RetroElectro July 15, 2020 at 8:50 pm Post count: 0]

#41178 Reply |

I have 240v ran out to my barn.  Right now, I’m only using one leg.  Just for fun, I ran both voltage sense leads to the hot legs, (One per leg) and bam! I got 240v on my meter.

For current, I wired 2 CTs in parallel, and put them both on the Hot Leg that I’m currently using, and it shows additive current.

Now, before anyone gets excited, It’s 2 CTs on one leg, and it shows double the current.  This is to be expected.

If you are 100% positive that you will have a balanced load, you can probably get away with doing it this way.  If your load is unbalanced, like mine is, that obviously wont work, since you aren’t measuring anything from the second leg, and are just doubling one leg to compensate.

Something that can become an issue with measuring both legs is that one leg is 180 degrees out of phase from the other.  Some meters can recognize this, and will give you the additive value, but one could be positive and one could be negative, canceling each other out.  If that happens (for that type of meter), you just flip one CT around and the negative value becomes positive, and BAM!  you have 240v split phase happiness!

I don’t know if this meter can do split phase (180 out / additive) or not.  but I know for a fact that you can use 2 CTs in parallel on one meter.

I would LOVE to know if it can do this.  I’m getting ready to load my other leg soon, and really need to measure them both.

[RetroElectro July 15, 2020 at 9:03 pm Post count: 0]

#41179 Reply |

So, in the US, 240v is considered Single Phase as well.  It’s split phase, but still considered single phase.

Maybe instead of saying this meter is rated for 300v, it should say “Low Volt Service Power”.  That would be true Single Phase to the average ear.  When I hear Single Phase, I tend to hear (not 3 Phase).

Unless it actually can handle split phase.

[DrokKeymaster July 16, 2020 at 6:38 am Post count: 2971]

#41199 Reply |

Hello,

It is not recommend that connect two CTs to one meter.

Best regards.

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