Search found 11 matches
- Sat Jun 05, 2021 5:26 pm
- Forum: Electric Meters
- Topic: Omnimeter 1 v.3 and the magic smoke
- Replies: 4
- Views: 33051
- Sat May 29, 2021 7:33 am
- Forum: Electric Meters
- Topic: Omnimeter 1 v.3 and the magic smoke
- Replies: 4
- Views: 33051
Re: Omnimeter 1 v.3 and the magic smoke
Thanks Jameson, It looks like it took out the grounding part of the burden circuit. From what I can tell, terminals #2, #4 and #6 are connected together and then connected through R4 and R67 to Neutral. Technically I don't need L3, but it would be nice to have a fully functioning meter. Also, if you...
- Mon May 10, 2021 1:35 pm
- Forum: Developers Sandbox - Meter Data
- Topic: C code/library for EKM Omnimeter
- Replies: 0
- Views: 44831
C code/library for EKM Omnimeter
Hi This is something that I meant to make publicly available around 7 years ago. Hopefully it will help someone here read data from the meters. Originally, I intended to add support for several meters, but I only ever had access to the Omnimeter 1v.3. The intention was to use unions to handle multip...
- Mon May 10, 2021 12:52 pm
- Forum: Electric Meters
- Topic: Omnimeter 1 v.3 and the magic smoke
- Replies: 4
- Views: 33051
Omnimeter 1 v.3 and the magic smoke
Hi,
I made an off-by-one error wiring up L1 into #6 (CT3 connection) rather than #7 due to parallax . That side of the CT terminals is connected to #10 (N) so it blew up the trace R4 and R67 . Could you by any chance tell me the values of those 2 resistors so I can attempt a repair?
Ian
I made an off-by-one error wiring up L1 into #6 (CT3 connection) rather than #7 due to parallax . That side of the CT terminals is connected to #10 (N) so it blew up the trace R4 and R67 . Could you by any chance tell me the values of those 2 resistors so I can attempt a repair?
Ian
- Tue Jan 08, 2013 11:59 pm
- Forum: Developers Sandbox - Meter Data
- Topic: Very odd readings
- Replies: 3
- Views: 10591
Re: Very odd readings
I've just tried reading meter data using EKM Dash and it's refusing to read anything other than the "General" and "Advanced" tabs (it complains when I click on rates and Data). Yes, that will most likely be the iSerial TCP retransmit bug I mentioned in another thread. You're pos...
- Tue Jan 08, 2013 11:54 am
- Forum: Developers Sandbox - Meter Data
- Topic: Very odd readings
- Replies: 3
- Views: 10591
Re: Very odd readings
I had something similar happen to one of my meters where some of the internal settings were corrupted by a slew of power failures and brown-outs. If your kWh counter now runs at a different rate you have the same issue I had (mine ran at 1 tenth pace). Setting the CT ratio back to the original value...
- Fri Jan 04, 2013 11:32 am
- Forum: Developers Sandbox - Meter Data
- Topic: CRC16 help
- Replies: 8
- Views: 26263
Re: CRC16 help
I'm trying to get the CRC16 algorithm going in Java... but I must admit bitwise operations aren't my strong point. This is what I've done with the EKM-provided CRC16 C-code (an attempt to translate it to Java) : public int ekmCheckCrc(byte[] dat) { int crc = 0xffff; for (int i = 1; i < dat.length-3...
- Fri Jan 04, 2013 4:28 am
- Forum: Developers Sandbox - Meter Data
- Topic: EKM-Omnimeter RS-485 Data
- Replies: 44
- Views: 502034
Re: EKM-Omnimeter RS-485 Data
2. The Maximum Demand field is 8 bytes, not 7. EKM-- 2. Thank you very much for catching the typo! The Maximum Demand is 8 bytes in the EKM-Omnimeter return string. We really appreciate the heads up and will update this document. I'd like to correct this further. It appears that the Maximum Demand ...
- Sat Jul 07, 2012 2:16 pm
- Forum: Developers Sandbox - Meter Data
- Topic: EKM-Omnimeter RS-485 Data
- Replies: 44
- Views: 502034
Re: EKM-Omnimeter RS-485 Data
Ah, silly me. I was thinking phases, not ToU.Jameson wrote: EKM-- 1. I think you may be referring to the 4 different time periods the meter returns. The Omnimeter itself keeps track of how many kWh both Total and Reverse have been used in each of 4 time periods.
Ian
- Fri Jul 06, 2012 12:02 pm
- Forum: Developers Sandbox - Meter Data
- Topic: EKM-Omnimeter RS-485 Data
- Replies: 44
- Views: 502034
Re: EKM-Omnimeter RS-485 Data
I have a couple of questions and comments after reviewing the V3 meter parsing document. 1. The example shows energy accumulation for 4 transformers. Which meter has a 4th CT input? 2. The Maximum Demand field is 8 bytes, not 7. 3. WRT the date. Capturing network data yields: 0157 3102 3030 3630 283...