How does a water tank sensor work in a RV?
The more liquid is in the tank, more signal is picked up from one foil strip and passed on to the other foil strip through the liquid. Both on outside of tank, so there is no deterioration or contamination from the tank contents, and no drilling the tank required.
What kind of tank monitor does a motorhome need?
The 709 tank monitor is designed for motorhomes and travel trailers with three holding tanks; fresh, grey, and black tank levels. This model also monitors battery voltage, as well, displays your existing propane (LPG) tank level by connecting to the sensor.
Is the seelevel II RV tank monitor accurate?
Precision accuracy – The SeeLeveL II ™ RV tank monitor provides percentage full, accurate tank measurement readouts. These readouts are accurate within 3/8 of an inch. Simple to install – Two wires connect to your existing system wires and function on a common bus system.
Are there any non contact water tank sensors?
The non-contact sensors are better but not foolproof either. According to their web site the SeeLevel system can also be fooled but at least it just stops giving a reading rather than showing a false one. That is your signal to clean the tank walls.
The more liquid is in the tank, more signal is picked up from one foil strip and passed on to the other foil strip through the liquid. Both on outside of tank, so there is no deterioration or contamination from the tank contents, and no drilling the tank required.
The non-contact sensors are better but not foolproof either. According to their web site the SeeLevel system can also be fooled but at least it just stops giving a reading rather than showing a false one. That is your signal to clean the tank walls.
Where are the resistors on a water tank sensor?
If it’s made by Ventline as many are, there is a 68k ohm resistor between the full and 2/3 sensor and one from the 2/3 sensor to the 1/3 sensor. The wire from the panel connects to the full sensor. On some units the resistors are potted in a small plastic cup close by the tank with one wire leading from it back to the panel.
What are the sensors on a holding tank?
The problem is that fluid holding crud builds up on the tank walls and that fools the sensors into thinking there is fluid in the tank. If it’s made by Ventline as many are, there is a 68k ohm resistor between the full and 2/3 sensor and one from the 2/3 sensor to the 1/3 sensor. The wire from the panel connects to the full sensor.
