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ACU-100 / EV-1 Locations
01-17-20, 06:50 PM (This post was last modified: 01-19-20 07:24 PM by Tom - Raymarine - Moderator.)
Post: #1
ACU-100 / EV-1 Locations
Quick question.. Will mounting the ACU100 next to the EV1 be okay, or will the ACU100 likely cause magnetic interference to the EV1?
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01-19-20, 07:32 PM
Post: #2
RE: ACU-100 / EV-1 Locations
Hello jrock836,

You shouldn't do this. The ACU won't have much of a magnetic field when in Standby, but will have a larger (and, importantly, changing) magnetic field when it's handling larger amounts of current whilst the pilot is active. The likely effect is a fluctuating heading error on the EV whenever the pilot drives, which will then result in the pilot driving to try to correct the change in (apparent) heading and so on - a feedback loop which will result in very unpredictable pilot steering.

Regards,
Tom

Raymarine since 1999.
Interests: Diagnosis of problems in sonar/fishfinders, NMEA2000, ethernet comms, autopilots, thermal cameras
Location: Sydney, Australia.

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01-20-20, 06:57 PM
Post: #3
RE: ACU-100 / EV-1 Locations
(01-19-20 07:32 PM)Tom - Raymarine - Moderator Wrote:  Hello jrock836,

You shouldn't do this. The ACU won't have much of a magnetic field when in Standby, but will have a larger (and, importantly, changing) magnetic field when it's handling larger amounts of current whilst the pilot is active. The likely effect is a fluctuating heading error on the EV whenever the pilot drives, which will then result in the pilot driving to try to correct the change in (apparent) heading and so on - a feedback loop which will result in very unpredictable pilot steering.

Regards,
Tom

Thanks Tom, that's what I figured, but I started second guessing myself when I saw the photo in this link. PracticalSailer.com gave the photo credit to Raymarine haha..

https://www.practical-sailor.com/marine-...stem-check
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01-21-20, 01:10 AM
Post: #4
RE: ACU-100 / EV-1 Locations
Hmmm! Personally I wouldn't recommend that, but installations on boats are always about compromises and you have to install where you can. We had a test boat a while back where we had a choice of mounting close to the windscreen-wiper motor, close to the anchor well, close to the pilot pump or close to the 2x radars.

Raymarine since 1999.
Interests: Diagnosis of problems in sonar/fishfinders, NMEA2000, ethernet comms, autopilots, thermal cameras
Location: Sydney, Australia.

Please don't PM me asking for direct support, please ask a public question instead so that others can see the question and answer. Forum posts will always be answered before PM requests.
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