Reports

Calibration done by: Cove Sturtevant

Calibration setup: Both sensors were placed in the same jar of salt water. The water was diluted incrementally by pouring some out and refilling it with deionized water. The water was stirred using the sensors.

The reference sensor was a new CS547A conductivity sensor, sn 6494, with the Campbell Sci A547 interface sn 3585.

The test sensor was an old conductivity sensor with no sn (assume it was also a CS547A) with Cove's homemade A547 board.

Note: The difference in measurements between the two setups was due to the board. Both sensors read very similarly with the same board. 

Figure 1. Tight linear relationship for conductivity with a slope of 1.09 and a negligible offset.

Figure 2. Strong linear relationship for temperature with slope close to 1 and negligible offset.