[Dsg-ft] Condensation sensors

[Amanda Hoebel]

Hi Raffaella,

I have attached a picture of the sensor dimensions. This sensor is spring-loaded and has a mounting hole where the sensor can be screwed or glued. We can make the cable between the sensor and the box 50 feet. The box is about 6 inches by 4 inches and would be placed beside the cRIO. 

Measuring the local temperature would only be necessary if we used the humidity sensor instead of the water detection sensor. If condensation does occur, are there any plans to use a drip tray or heat tape?

Regards,
Amanda


----- Original Message -----
From: "raffaella devita" <Raffaella.Devita at ge.infn.it>
To: "Amanda Hoebel" <amandah at jlab.org>, "dsg-ft" <dsg-ft at jlab.org>
Sent: Monday, August 21, 2017 5:55:39 AM
Subject: Re: [Dsg-ft] Condensation sensors

Hi Amanda,
given the difficulties in accessing the back of the calorimeter, I think 
the single-point sensor would be more suitable. I have a few questions:
- how big is the sensor and how should that be connected to the surface 
where we want to check for condensation;
- how long can the cable between the sensor and the box be ?
- how big is the box and where could be located?
Pete mentioned that, to use this sensor, it would be necessary to 
measure the local temperature: I know we are using all the inputs of one 
CRio RTD module, but I checked and we actually bought two of them when 
we purchased all the hardware so there should a second module completely 
free.
Best regards,
     Raffaella

Amanda Hoebel wrote:
> Hi Raffaella,
>
> Attached are pictures of two Greystone WD-100 water detection units we discussed to detect condensation outside of the calorimeter. One has a detection cable of 4.5 feet long. This unit will detect water anywhere along the wire and can be used to detect condensation at one location or multiple locations. The other unit has a single-point sensor. Please let me know what you think of these units.
>
> Regards,
> Amanda
>
>
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