Hello
How difficult is it to create a custom sensor in short cut for a Delta-T ML3 Theta probe, to measure both soil moisture and temperature?
I ask as I worry about the power-up delay for temperature measurement and the application of conversion tables for soil moisture.
thx
it is certainly easier to create a program that runs in the logger and measures the sensor. Including conversion of mV into soil moisture
A resistance reading must be used for the temperature measurement. There is only one thermistor without other electronics With cable not too long BRHalf is sufficient
For the warm-up time before measurement is definitely described in the probe manual.
From ML3 manual:
Note: The ML3 has been optimised for warm-up of 0.5 to 1 second duration.
It is recommended that the sensor is not powered continuously.