On the trip to S15 yesterday (Oct 20), took a photo of the EC100 internals, to help address the issue why Pirga seems to be low by about 1 mb. It's probably not of much use, but here it is.
Around 11:25 EDT I rserial'd to the EC150 on S15 (port 5). The pressure setting can be changed with the "O" command. It is a hassle because we don't know how to disable the unprompted output, and so the menu prompts are interspersed in the binary output.
Here's what t looks like the response to the O command:
0) Pressure Source:\r\n1) Pressure Calibration:\r\n2) Differential Pressure Select:\r\n3) Temperature Source:\r\nEnter Selection:
Entered "0" (zero) and got:
0) Internal\r\n1) External\r\n2) CS106 (External)U\r\n3) Fixed PressureU\0xaa
Entered 1 for the external barometer. However, then Pirga went to 22 and the h2o and co2 values became NaN. Switching it back to the internal barometer resulted in Pirga=1008, and the h2o and co2 values returned.
From Steve Oncley:
So...it is a mystery why the "external" barometer isn't working and why this box apparently was set to use the "internal" barometer. I thought it had been working using the external. This sensor was used in CABL.