<html><body><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div data-marker="__QUOTED_TEXT__"><div style="font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000"><div>Hello Marco,<br></div><br><div>We would be available to meet this morning at 10:00AM.<br></div><br><div>So DSG can prepare for the meeting, what issue is there with the readings during the time interval in your logbook entry from 2017-11-25 from 14:00 to 18:00? </div><br><div>Taking the data for that time interval, we wrote a Python script that parses the data every 10 seconds and calculates the maximum difference between humidity readings (1440 data points total). The resulting plot (2017-11-25_1400_to 1800.jpeg) is attached. From the data, the largest difference is 1.22% and the average difference is 0.75% +/- 0.22%. This is within the specs of the sensor. <br></div><br><div>If the issue is the fluctuations in humidity readings in the middle of the plot, that seems to be a result of whatever programming the drybox uses to reach a specified humidity. It is not from the humidity sensors. <br></div><div><br data-mce-bogus="1"></div><div>Best regards,<br data-mce-bogus="1"></div><div>Tyler<br data-mce-bogus="1"></div><br><hr id="zwchr"><div><b>From: </b>"Mirazita Marco" <Marco.Mirazita@lnf.infn.it><br><b>To: </b>"dsg-rich" <dsg-rich@jlab.org><br><b>Sent: </b>Tuesday, November 28, 2017 11:15:00 AM<br><b>Subject: </b>[Dsg-rich] humidity sensor calibration<br></div><br><div>Hi all,<br>I would have a meeting to discuss the calibration of the humidity <br>sensors at values below 10%.<br>The data I took few days ago can be found here:<br>https://logbooks.jlab.org/entry/3496207<br>When would you be available?<br>Thank you,<br>Marco<br><br>_______________________________________________<br>Dsg-rich mailing list<br>Dsg-rich@jlab.org<br>https://mailman.jlab.org/mailman/listinfo/dsg-rich</div></div><br></div></div></body></html>