The display on the SR Systems Monitor had died long ago so I did quite a bit of research then retrofitted the hardware and greatly improved the entire system; All for about the price of the SR display alone. The basic pieces are 1 Maretron DSM410 display module, 1 Maretron RIM100 run indicator module, 1 NEMA 2000 backbone and drop cables, 1 Blue Sea fuse block, and some wire. This is the end result, the wire diagrams, and installation photos. The Maretron DSM410 is an impressive piece of hardware and it's capabilities are far beyond the original Systems Monitor; some of the additional features I've incorporated (the data was already on the NMEA 2000 network) include trim tab position, rudder position, navigational data, engine data, depth transducer data, and much more. But, this post is about the capability for the systems monitor features I set up....
Now, for the systems monitor, I limited the monitoring channels to six as that was the total available with one Maretron RIM100; more RIM100 modules can be added but for my purpose six channels were adequate. With that said to reduce from the nine Sea Ray monitored elements to six channels I combined the three bilge sump pumps to one input using shottky diodes to prevent one pump's "on" signal powering up another pump (see the attached schematic) and eliminated the shower sump as a monitored signal.
So, should one of the monitored systems become "active" (like the generator shutting down unintentionally) the Maretron DSM410 display line item turns red, an audible alarm sounds, and an alert indicator comes on in any of the display's screens. A press of the power button acknowledges the alarm and silences the horn. As an additional important feature an integrated counter and timer records how many times and how long an alarm occurs; this is important should the bilge pumps cycle on and off to keep a water leak at bay this data is available and a component of the alarm. A much improved and superior systems monitor.... Recommend.
The first, second, and third images show the monitor in normal (no faults) mode, one of the three bilge pumps running, and how an alert appears in another screen.
The fourth image is the installation where the original SR monitor system was installed and the installation of the new components in the lazarette.
The fifth image is the NMEA 2000 network under the helm.
And, the sixth and seventh are the wiring diag's.
View attachment 64912
Now, for the systems monitor, I limited the monitoring channels to six as that was the total available with one Maretron RIM100; more RIM100 modules can be added but for my purpose six channels were adequate. With that said to reduce from the nine Sea Ray monitored elements to six channels I combined the three bilge sump pumps to one input using shottky diodes to prevent one pump's "on" signal powering up another pump (see the attached schematic) and eliminated the shower sump as a monitored signal.
So, should one of the monitored systems become "active" (like the generator shutting down unintentionally) the Maretron DSM410 display line item turns red, an audible alarm sounds, and an alert indicator comes on in any of the display's screens. A press of the power button acknowledges the alarm and silences the horn. As an additional important feature an integrated counter and timer records how many times and how long an alarm occurs; this is important should the bilge pumps cycle on and off to keep a water leak at bay this data is available and a component of the alarm. A much improved and superior systems monitor.... Recommend.
The first, second, and third images show the monitor in normal (no faults) mode, one of the three bilge pumps running, and how an alert appears in another screen.
The fourth image is the installation where the original SR monitor system was installed and the installation of the new components in the lazarette.
The fifth image is the NMEA 2000 network under the helm.
And, the sixth and seventh are the wiring diag's.
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