# \#northamerica **URL:** https://community.openenergymonitor.org/tag/northamerica/88.md [Latest](https://community.openenergymonitor.org/latest.md) · [Categories](https://community.openenergymonitor.org/categories.md) · [Tags](https://community.openenergymonitor.org/tags.md) --- ## [emonTx V4, emonVS in North America](https://community.openenergymonitor.org/t/emontx-v4-emonvs-in-north-america/23364)
**Author:** [@brandock](https://community.openenergymonitor.org/u/brandock)\ **Replies:** 76\ **Last updated:** [31 July 2025 15:29 UTC](https://community.openenergymonitor.org/t/emontx-v4-emonvs-in-north-america/23364 "2025-07-31T15:29:26Z")
I’d like to start a thread regarding the use of the new AVR-DB, emonTx V4, emonVS, and burdened CTs in the US and North America. Currently the Use in North America guide seems to be geared toward emonTx V3, unburdened (c… --- ## [Mysterious null results on a single monitored branch circuit](https://community.openenergymonitor.org/t/mysterious-null-results-on-a-single-monitored-branch-circuit/27238)
**Author:** [@davidski](https://community.openenergymonitor.org/u/davidski)\ **Replies:** 25\ **Last updated:** [8 December 2024 14:17 UTC](https://community.openenergymonitor.org/t/mysterious-null-results-on-a-single-monitored-branch-circuit/27238 "2024-12-08T14:17:11Z")
I have an odd failure to get any readings from a particular branch circuit. I’m using an EmonTX5 w/12 ports on US power (split phase, 120V, 60Hz). Using a 20 Amp CT from the OEM shop on the target line gives me a static… --- ## [Debugging new EmomTX5 setup](https://community.openenergymonitor.org/t/debugging-new-emomtx5-setup/27125)
**Author:** [@davidski](https://community.openenergymonitor.org/u/davidski)\ **Replies:** 14\ **Last updated:** [14 November 2024 20:46 UTC](https://community.openenergymonitor.org/t/debugging-new-emomtx5-setup/27125 "2024-11-14T20:46:46Z")
I’m setting up a new EmonTX5 for use here in North America (split phase). I’ve hooked up a number of 20A and 50A sensors but am seeing almost nothing getting to my EmonCMS inputs or logged to feeds. Below I have the sta… --- ## [Good source for CTs in Canada](https://community.openenergymonitor.org/t/good-source-for-cts-in-canada/1164)
**Author:** [@Niklas](https://community.openenergymonitor.org/u/Niklas)\ **Replies:** 14\ **Last updated:** [17 November 2017 15:17 UTC](https://community.openenergymonitor.org/t/good-source-for-cts-in-canada/1164 "2017-11-17T15:17:36Z")
I am looking for a vendor of CTs in Canada, I plan to monitor a house with split phase supply, and I’d like to use the recommended CTs. Thanks for any hint! --- ## [North America, CTs and Calibration](https://community.openenergymonitor.org/t/north-america-cts-and-calibration/5007)
**Author:** [@buz](https://community.openenergymonitor.org/u/buz)\ **Replies:** 9\ **Last updated:** [28 September 2017 16:16 UTC](https://community.openenergymonitor.org/t/north-america-cts-and-calibration/5007 "2017-09-28T16:16:17Z")
Hello, I got a raspberrypi for fathers day and have been slowly building my emonpi system. I have it working (monitoring one circuit and 4 temp sensors). I am looking to expand…just need to verify things are going to w… --- ## [emonPi Use in USA](https://community.openenergymonitor.org/t/emonpi-use-in-usa/443)
**Author:** [@PerigVennetier](https://community.openenergymonitor.org/u/PerigVennetier)\ **Replies:** 17\ **Last updated:** [2 June 2016 19:20 UTC](https://community.openenergymonitor.org/t/emonpi-use-in-usa/443 "2016-06-02T19:20:33Z")
Hi, First let me say thanks for an awesome product (EmonPi) and all the information in the guides, etc. I am pretty new to Arduino and RaspberryPi in general so bear with me if that’s OK. So I received a complete Emon… --- ## [CT for North America? YHDC SCT-027H](https://community.openenergymonitor.org/t/ct-for-north-america-yhdc-sct-027h/2933)
**Author:** [@Niklas](https://community.openenergymonitor.org/u/Niklas)\ **Replies:** 6\ **Last updated:** [3 February 2017 11:39 UTC](https://community.openenergymonitor.org/t/ct-for-north-america-yhdc-sct-027h/2933 "2017-02-03T11:39:11Z")
Hi all, I got my hands on two of these: http://www.yhdc.us/ProductShow3.asp?ArticleID=799 Without too much knowing what I was doing, connected them to my EmonPi to measure the mains of a house (200 A split phase). I t… --- ## [EmonPi CTs not reporting, Vrms pulled down](https://community.openenergymonitor.org/t/emonpi-cts-not-reporting-vrms-pulled-down/1298)
**Author:** [@bhorrock](https://community.openenergymonitor.org/u/bhorrock)\ **Replies:** 5\ **Last updated:** [19 August 2016 00:03 UTC](https://community.openenergymonitor.org/t/emonpi-cts-not-reporting-vrms-pulled-down/1298 "2016-08-19T00:03:26Z")
Received my EmonPi, EmonTH, and EmonTx smt shield. Most everything is working, except for the CT inputs on the EmonPi. Temperature and humidity feeds work with the EmonPi, EmonTH and EmonTx. I can log data from my …