[Dsg-rich] PPM humidity sensor for RICH

[Brian Eng]

BTW, I've already ordered an adapter for the Michell Easidew sensor since it uses an uncommon fitting.

https://misportal.jlab.org/reqs/pr/viewPrStatus.do?prNum=373919

We'll also need a right angle NPT fitting and a valve to go between them if it is to be mounted to the RICH tank.

For just testing other than the display unit no extra fittings should be needed.

----- Original Message -----
> From: "Tyler Lemon" <tlemon at jlab.org>
> To: "dsg-rich" <dsg-rich at jlab.org>
> Sent: Wednesday, November 29, 2017 3:20:17 PM
> Subject: [Dsg-rich] PPM humidity sensor for RICH

> Hello Marco Mirazita,
> 
> This is to inform you that we have a spare hygrometer that measures the dewpoint
> or concentration of water in air.
> 
> We have the sensor on hand, but we still need the read-out instrumentation. Marc
> has gone to Hall B to get the read-out instrumentation that we could use.
> 
> We will have to convert the output of the sensor, in dewpoint or ppm, to
> relative humidity to be able to compare the hygrometer measurements to the
> interlock humidity sensors.
> 
> Best regards,
> Tyler