[Dsg-rich] Easidew hygrometer connected to RICH interlock cRIO

[Amrit Yegneswaran]

excellent job tyler and cohorts. 
so, what is the accuracy of the easidew gadget, hopefully much less than 3.5%. 
hopefully 0.5%! 


From: "Tyler Lemon" <tlemon at jlab.org> 
To: "dsg-rich" <dsg-rich at jlab.org> 
Sent: Thursday, November 30, 2017 4:03:23 PM 
Subject: [Dsg-rich] Easidew hygrometer connected to RICH interlock cRIO 

Hello, 

This afternoon, Amanda, Pablo, and I connected and powered the Easidew hygrometer. The Easidew is currently placed in the Ferrara dry-cabinet with humidity sensors #1, #3 - #8. 

The Easidew reading the dewpoint within the dry-box and outputting this signal to the hardware interlock cRIO. The dewpoint is then converted to relative humidity by the cRIO's LabVIEW program. 

The humidity calculated by the Easidew can be monitored on the RICH Hardware Interlock EPICS screen as Humidity #16. This signal is being archived as B_DET_RICH_INTLK_HUMID16 in MYA archiver. 

As of this email, the humidity results are: 

Sensor 
	Humidity [%] 

Dry-box 
	0.0 

Easidew 
	0.02 

Humidity #1 
	1.38 

Humidity #3 	1.11 

Humidity #4 	0.90 

Humidity #5 	0.75 

Humidity #6 	1.01 

Humidity #7 	0.86 

Humidity #8 	1.15 

Best Regards, 
Tyler 

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