[Dsg-halla_ecal] ECAL heater

[shahinya at jlab.org]

Hi Marc,

Today I discussed your proposal with Bogdan,
and we confirm the order of the heater.
Please order 12 heater and test with 6 SM.
You also need to install an aluminum bars
on the sides of the super modules.
You need to control the temperature in front
and behind the lead glass.
If you need help creating a prototype, we can
arrange a meeting and discuss?

Thank you,
Albert


> Hi Albert,
>
> Here is the email from the manufacture. These can run at 250C
> continuously. The main point is that we have a quote for units which can
> be purchased for testing at 250C to confirm if this will work.
>
> We are still looking for other options.
>
> Marc
>
>
>
> Hello,
>
>
>
> I have just left you a voice mail on this project.
>
>
>
> We are comfortable with having the heaters quoted here run at 250C on a
> continuous basis.​
>
>
>
> Some of the construction has been changed:
>
>
>
>   *   Wire wound heating element
>   *   High Temperature Silicone Rubber
>   *   Not a UL approved and stamped heater
>
>
>
> We’d still have a maximum of (12) heaters which can be connected
> together in parallel.
>
>
>
> I’ve shown the cost of having (10) Heaters Expedited on our Fast Track
> Service.
>
> Any questions please let me know!!
>
>
>
>  ​
>
> David Podolsky
>
> 845-758-0700
>
>
>
> www.customheatersandresearch.com<https://urldefense.proofpoint.com/v2/url?u=http-3A__www.customheatersandresearch.com_&d=DwMGaQ&c=CJqEzB1piLOyyvZjb8YUQw&r=hQJSuIbzwxGOX7LZbVne0gHeC6U5hlDu99LTH_I02ZM&m=dYJd_Rddw4G9trXFjvE74LqCZIh9nFE53eAmon1BPaD1vK3JeWec8w60MZjZyDIV&s=lPvOeUjMoUkguo7XfM1YEMyI-T6ZJZTGHBUUvjUUeqI&e=>
>
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>
>
>
> **Please Note – Purchase Orders, Invoices and ship date inquiries should
> also be copied to our Office Staff:
>
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>
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>
>
>
> ________________________________
> From: shahinya at jlab.org <shahinya at jlab.org>
> Sent: Friday, September 9, 2022 1:12 AM
> To: Marc Mcmullen <mcmullen at jlab.org>
> Cc: dsg-halla_ecal at jlab.org <dsg-halla_ecal at jlab.org>
> Subject: Re: [Dsg-halla_ecal] ECAL heater
>
> Hi Marc
>
> I'm worried about 250C max. All the time this heater
> will work the maximum mode.
> When testing the prototype in the front flange SM, we reached 250C, which
> is half the maximum operating temperature of the heater that I used.
> How many days continuously can this heater operate at maximum?
>
> Thank you,
> Albert
>
>
>>
>> We have received a quote for custom silicon heaters with built in
>> temperature sensors. The manufacture specified the max temperature to
>> 250
>> degrees Celsius. The total watts per heater is 125.
>>
>> The quote states the operating voltage is 120VAC, but I have confirmed
>> that 48VDC will work as well. I am still waiting on specifications for
>> the
>> current, which will be higher if you use the lower voltage.
>>
>> The cost for a test amount of 10 heaters with built in temperature
>> sensors
>> and 96" cables is $825 (total). We can get these in-house within 2
>> weeks
>> of an order.
>>
>> The cost per heater for the full compliment is $57.50 per heater.
>>
>> I am including the quote and a materials composition specification.
>>
>> Let me know if you want me to write a requisition, and confirm the
>> account
>> codes to charge.
>>
>> Regards,
>> Marc
>> _______________________________________________
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>>
>
>
>