Turning On Or Off A Circuit Based On Fluid Level - Maretron M-Power CLMD16 Configuration Manual

____________________________________________________________

Turning On or Off a Circuit Based on Fluid Level

In the following example there will be a freshwater pump load that turns Off based on tank
level becoming low and restores functionality when filled back up. The freshwater pump in this
example is connected to "ECB / Breaker 4" and the "Freshwater Tank" we are monitoring is
connected to "Input 10". The intent of this is so the freshwater pump does not run dry
potentially damaging the pump. Using this circuit type can prevent unwanted damage to
pumps as well as a way to keep fluid systems primed. See the following example to setup this
circuit type.
Step 1:
Understand what resistance readings equate to "Full" and "Empty" to the CLMD16. Press
"Tank Levels Calibration" on the particular input used for the freshwater tank sender.
Understanding that 240 Ohms = "Tank Empty" / 0%, We will use "230 Ohms" as our "Marker"
for when we want the freshwater pump connected to breaker 4 to switch Off. It is
recommended that this "Marker" is determined by judging "Measured Resistance" ohm reading
when calibrating for accuracy in determining the best "Marker Point".
CLMD16 Configuration Guide Rev.1.1 31