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Tankage Calibration? |
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Black Diamond
Vice Admiral Joined: 24 October 2015 Location: Newport, RI, US Status: Offline Points: 923 |
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Just saw this... sorry... As was stated, no display is going to fix things if the sensor is bad. I've always put a multimeter on the line and checked Ohms or voltage to see if its within reason before hooking things up. We have a fairly complicated monitoring system, because I've pretty much disconnected everything to do with the standard Hanse monitoring and I've added 800W of solar on my bimini. The system needed expansion because the biggest bank of Solbian panels can put out more than 25amps on a good day and therefore I needed to hook them into an SCQ50 rather than an SCQ25. In another case, SIMARINE just shipped me another ST107 (tank monitoring) as the resistance based inputs on my existing one started acting up. So.... now I have two in the topology. I have 3 banks of solar panels with 4 controllers (the two forward separated in case of boom shadow) that I want to monitor separately, NMEA 2000 interface so I can see the tanks on my ZEUS displays, etc...etc... have temp sensors for refrig/freezer, blackwater and freshwater tanks being monitored (ultrasonic sensors), fuel tanks, etc... It does not need to be this complicated. Start simple, then build it up as needed. I just wanted to exit the WURTH panel for all monitoring. See diagram. Edited by Black Diamond - 28 October 2021 at 22:04 |
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Rick
S/V Black Diamond Hanse 575 Build #192, Hull# 161 Newport, RI |
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SVZara
Captain Joined: 04 November 2018 Location: Boston, MA Status: Offline Points: 196 |
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Can you post a link to the specific Wema sensor you used?
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Marc
S/V Zara 2016 Hanse 505, Hull #129 |
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Black Diamond
Vice Admiral Joined: 24 October 2015 Location: Newport, RI, US Status: Offline Points: 923 |
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I'd be interested as well. I replaced the fresh water and blackwater sensors with ultrsonic sensors (Maretron) but the fuel sensors I'm using are just the standard ones shipped with the boat. |
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Rick
S/V Black Diamond Hanse 575 Build #192, Hull# 161 Newport, RI |
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SVZara
Captain Joined: 04 November 2018 Location: Boston, MA Status: Offline Points: 196 |
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I'd also like to see what sensor you are using for your tankage. Can you post a link to the specific unit?
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Marc
S/V Zara 2016 Hanse 505, Hull #129 |
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SVZara
Captain Joined: 04 November 2018 Location: Boston, MA Status: Offline Points: 196 |
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Is there a reason you are not using the ultrasonic on the fuel tanks? Edited by SVZara - 28 October 2021 at 22:16 |
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Marc
S/V Zara 2016 Hanse 505, Hull #129 |
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Black Diamond
Vice Admiral Joined: 24 October 2015 Location: Newport, RI, US Status: Offline Points: 923 |
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There was nothing wrong with the fuel tank sensors so I left them. They work fine (so far). I just needed to calibrate the PICO display for them. They are resistance based. If I ever have to replace them, it shouldn't be a big deal. The monitoring does not change architecturally. Just the calibration to a new sensor. The ultrasonic sensors are the Maretron TM100 units. For the blackwater tanks I added the sensor tube. The Maretron sensors are voltage based. The PICO can work with any resistance or voltage based input. Calibration
was a simple matter of getting a flow meter from Amazon for $6, hooking
it to a hose and filling the fresh water and holding tanks while using
the PICO "current reading" capability to set the values. Flow meter
says 20 gallons, the voltage was X, that becomes a calibration point.
I have 11 calibration points on my freshwater tank, 9 on the
aft blackwater tank and 5 on the forward blackwater tank. |
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Rick
S/V Black Diamond Hanse 575 Build #192, Hull# 161 Newport, RI |
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