AQD_ottawa
New member
Many thanks to Steve (redbull99) for the copied below level sensor detailed clarifications. I hope this helps some people with any set up they may have now or in the future
Just to introduce you to Steve. Steve is the UK distributors of GHL. When my wife and I emigrated to canada Steves company took over the GHL distribution for the UK and has done a great job of making it grow hugely. I am sure you will see Steve on here helping out a lot more. So if your reading this from the UK please contact him for your supply questions by pm or email only.
Here is the text
Only one sensor is required to run auto top up of a sump. When the level falls the socket programmed to respond to that sensor turns on, when the level rises the sensor detects this and turns the socket off, simple. You have the choice of a mechanical float type sensor or an optical sensor that isn't likely to be affected by wandering snails.
Another application of the level sensors, which seems to be confusing some people is the max/min mode, where you can use two sensors. One only detects the maximum level and the other the minimum level. A typical application of this would be for level detection of an RO water storage tank. You don't want your RO system turning on every time the level falls by a few mm (due to the high tds when an RO system starts up). So you use one sensor at the minimum level in the storage tank (just before empty) and the other at the maximum level in the storage tank.
So just to work it through, the storage tank is full, the maximum level sensor is detecting this and the Socket is powered off. The level falls slightly and nothing changes until the storage tank is nearly empty and the minimum sensor is triggered turning on the socket and filling the tank back up to the maximum level.
Hope that makes sense.
Just to introduce you to Steve. Steve is the UK distributors of GHL. When my wife and I emigrated to canada Steves company took over the GHL distribution for the UK and has done a great job of making it grow hugely. I am sure you will see Steve on here helping out a lot more. So if your reading this from the UK please contact him for your supply questions by pm or email only.
Here is the text
Only one sensor is required to run auto top up of a sump. When the level falls the socket programmed to respond to that sensor turns on, when the level rises the sensor detects this and turns the socket off, simple. You have the choice of a mechanical float type sensor or an optical sensor that isn't likely to be affected by wandering snails.
Another application of the level sensors, which seems to be confusing some people is the max/min mode, where you can use two sensors. One only detects the maximum level and the other the minimum level. A typical application of this would be for level detection of an RO water storage tank. You don't want your RO system turning on every time the level falls by a few mm (due to the high tds when an RO system starts up). So you use one sensor at the minimum level in the storage tank (just before empty) and the other at the maximum level in the storage tank.
So just to work it through, the storage tank is full, the maximum level sensor is detecting this and the Socket is powered off. The level falls slightly and nothing changes until the storage tank is nearly empty and the minimum sensor is triggered turning on the socket and filling the tank back up to the maximum level.
Hope that makes sense.
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