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GlobalLink 520 digital inputs increment by more than 1

I am bench testing my global link 520, with the objective of using it to count bilge pump cycles. Initially I am shorting digital input 1 and 2 to ground to simulate a relay closing for the bilge pump (input 1) and another relay closing for the high water alarm (input 2).

Digital input 2 is creating an alarm email as expected, but the counter on digital 1 is incrementing by 10-20 each time I short the wire to gnd. I would expect it to increment by 1. I have tried all the possible settings: pulse counter, bilge pump, etc.

What am I missing here? Shouldn't the digital input be incrementing by 1?

John Haley

jhaley100 asked
jhaley100 answered ·

2 Answers

Digital input problems with Globallink 520

I have connected my Globallink 520 to my boat bilge pump by using an automotive relay in parallel with the bilge pump circuit. I have jumpered both digital inputs together for trial purpose, so when the bilge pump is activated both digital inputs are shorted to the GND digital input port. I am trying to count bilge pump cycles and trigger an alarm, but also just trigger an alarm when the bilge pump cycles.

Here is what now happens:

1. The digital inputs increment by 2 or 3 per bilge pump cycle, and digital input 1 increments differently from blige pump 2.

2. The device reboots itself regularly so the counts revert to 0 on a random basis - every day or so. The device is reliably connected to a battery which is on a charger monitored by a smart shunt, so I don't believe this is due to power outages.

3. I am unable to reliably trigger an alarm when the bilge pump goes off.

When the digital state goes from High to Low is that saved by the Globallink 520 or does the digital state have to be Low when the device is polled by VRM? This would mean I need some kind of latching relay to trigger an alarm to VRM from the 520.

John Haley


jhaley100 asked
Lasse answered ·

1 Answer

Bluethooth bilge pump alarm

Hi,


I am looking for a Bluethooth bilge pump alarm like the supported Ruuvi temperature sensors. Is there any change the system can work with other systems like the the ruuvi,


There are snesors in the market that are able to sense high water level on BT


Jordy asked

0 Answers

Cerbo bilgepump system

I recently installed a Cerbo GX and connected my 4 bilge pumps to the digital inputs.

One of the data elements is cycle count. I'd like to set an alarm if any bilge cycles more than 15 times in any 24 hours period.

Is there anyway to reset this parameter to 0 once per day.

I've set another alarm if the input state is "on" for more than 60 seconds. If the bilge runs for more than 60 consecutive seconds the bilge either has an air lock or there is some sort of flooding. In addition to cycle count tracking I'd like to track cumulative run time in a 24 hour period, anyway to do this?

Thanks

Jordy asked
Jordy answered ·

2 Answers

Automatic Bilge Pump

I have a Lynx Smart BMS and distributer with LifePo4 and I’m wondering where the best place to connect the bilge pump is.

Before the Smart BMS to guarantee it always works?

Worried that it can then run the battery dead.

sweyn asked
seb71 edited ·

3 Answers

Venus GX Bilge alarm maken

Ik wil op een Venus GX een Bilge alarm maken. Dit lukt, maar ik wil ook een email ontvangen dat er een bilge alarm is. Het lukt om een algemene email te krijgen, maar niet om een email te krijgen met de melding van een Bilge Alarm. Wie kan mij helpen?

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ajvisser asked

0 Answers

VRM indication of bilge alarms, has it been changed

Here is the VRM output for my cabin bilge alarm, a simple float switch on the Cerbo GX digital inputs. I am sure that the VRM historical chart used to say Alarm and OK as the two options and showed blue bars when it was in either state, typically always at the lower or OK state and occasionally going into the upper Alarm state until the pump kicked in and emptied it. However, I am now getting no indications and the states are listed as Low and High, which of course a bilge alarm never is because the 2 states are OK and Alarm. The Status display shows everything is OK and the signal is being picked up. The same is true for the engine bay bilge alarm.

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pwfarnell asked
pwfarnell commented ·

1 Answer

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Lasse
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