dear friend
I want to put an obs300 turbidity in a river but the datalogger is about 200 meters of distance from the sensor...is it possible loss signal?
There is very little current on the voltage output lines, so there is not significant signal loss. You would need to allow extra warm up time before the measurement if switching power to the sensor. Our example program code already allows a conservative warm up time, so you shouldn't need to increase it.
thank you very much¡¡¡
have you ever connect something sensor with that distance between datalogger and unit?
what cable do you recommend to me? 14 AWG is good?
thank you again
I recommend 22 AWG shielded wire.
is not very thin like for 200 meters?
Dear
Our installed a turbidimeter campbell scientific S/N:S1178 in a river, inside a shield of stainless steel. And the distance between the sensor and the datalogger CR6 Campbell is about 170 meters.
and the turbidity in clean water of the river the unit register is:
23- 150 NTU aprox. the value vary between that two points (i think because the measures are in low range and high range) .
But when we connect the sensor with a cable of less lenght like 3 meters the values are good. Example 1NTU in clear water and the value is stable.
We have to calibrate in 170 meters?
when we are the same test in lab wuth a cable extra lenght of 70 meters the vary are:
7-17 NTU aprox in water clean.