Clients/SSLOCSD/emails/2026/april/Rosemount_Raw_Sludge_Feed_Flow_Meter.md

# Rosemount Raw Sludge Feed Flow Meter > **Thread Summary:** Mychal Jones reported error messages ("NV Mem ERR" and "Elec Failure") and a SCADA signal failure on the District's Rosemount 8732 raw sludge feed flow meter, despite seemingly correct data transmission to the Hach WIMS interface. Kevin Seifert responded that the transmitter is likely failing and may require board replacements, advising caution with power cycling due to potential loss of configuration or total unit failure, and recommended consulting Rosemount tech support for resolution. The current status is that the issue is identified as a probable transmitter failure, with next steps involving possible board replacement and contacting Rosemount support. --- ## 1. From: Mychal Jones <mychal@sslocsd.us> — Tue, 21 Apr 2026 17:21:37 +0000 Hi Kevin, I'm reaching out regarding an issue we're experiencing with the District's Rosemount 8732 raw sludge feed flow meter. The meter has active error messages ('NV Mem ERR' and 'Elec Failure'), and through my troubleshooting, have not been able to locate the cause. We also have an active signal failure on SCADA from this specific device. The strange thing is that I believe we are getting correct values transmitted from the SCADA to Hach WIMS interface. I've attached photos for reference along with the model and serial number below. Could you please assist us in troubleshooting this issue or provide insight into what might be causing the error messages and SCADA Signal Failure? Please let me know if you need any additional information. Emerson Rosemount Model: 8732EMT1A1K5M4Q4 S/N: 21258985 Thank you, ![[20260421_19db110b03ed_image001.jpg]] Mychal Jones Plant Superintendent/Chief Plant Operator Phone 805-489-6666 ext. 103 Web https://sslocsd.org/ Email mychal@sslocsd.us 1600 Aloha Place, Oceano, CA. 93445 ## Attachments - ![[20260421_19db110b03ed_20260421_080815.jpg]] - ![[20260421_19db110b03ed_20260421_083911.jpg]] - ![[20260421_19db110b03ed_20260421_083835.jpg]] - ![[20260421_19db110b03ed_20260421_084001.jpg]] - [[20260421_19db110b03ed_8732_Ref_Manual_8-2010e6bfcc4e-e048-48ce-b50f-b1520d940a39.pdf]] - ![[20260421_19db110b03ed_SCADA_Digester_Feed_Signal_Failure.jpg]] --- ## 2. From: Kevin Seifert <kevin@autosysnet.com> — Wed, 22 Apr 2026 22:23:00 +0000 Hello Mychal. This is a sign the transmitter is failing. It will likely need the boards replaced. A power cycle MAY resolve the issue, but you will risk loosing the configuration at best, or the whole unit at worst. A conversation with Rosemount tech support can lead to a resolution. -Kevin Seifert, AutoSys LLC ________________________________ From: Mychal Jones <mychal@sslocsd.us> Sent: Tuesday, April 21, 2026 10:21 AM To: Kevin Seifert <kevin@autosysnet.com> Cc: Mike Arias <arias@sslocsd.us>; Chris Rigoni <chris@sslocsd.us>; Mason Radke <mason@autosysnet.com> Subject: Rosemount Raw Sludge Feed Flow Meter Hi Kevin, I’m reaching out regarding an issue we’re experiencing with the District’s Rosemount 8732 raw sludge feed flow meter. The meter has active error messages (‘NV Mem ERR’ and ‘Elec Failure’), and through my troubleshooting, have not been able to locate the cause. We also have an active signal failure on SCADA from this specific device. The strange thing is that I believe we are getting correct values transmitted from the SCADA to Hach WIMS interface. I’ve attached photos for reference along with the model and serial number below. Could you please assist us in troubleshooting this issue or provide insight into what might be causing the error messages and SCADA Signal Failure? Please let me know if you need any additional information. Emerson Rosemount Model: 8732EMT1A1K5M4Q4 S/N: 21258985 Thank you, ![[20260422_19db74a2f45c_image001.jpg]] Mychal Jones Plant Superintendent/Chief Plant Operator Phone 805-489-6666 ext. 103 Web https://sslocsd.org/ Email mychal@sslocsd.us 1600 Aloha Place, Oceano, CA. 93445 ---