[3dem] K3 water flow

[Li Xing]

Happy New Year, every one,

Just a brief summary of the discussion. The maximum pressure of EM water
chiller seems to be the same of 60 psi for both JEOL and FEI microscope. It
is not recommend to increase the pressure as that might distrube the
stability of the lenses. Because K3 asks for a water pressure at 60-90 psi,
a dedicated chiller is added to maintain constant water flow when
installated on a FEI Palara.

Thank you all for your valuable input.

Best regards,
Li

On Mon, Dec 17, 2018 at 12:11 PM Li Xing <lxing.davis at gmail.com> wrote:

> Thank you all for the feedback, which helps us a lot in K3 installation.
> Wish you all a very happy holidays!
>
> Best regards,
> Li
>
> On Mon, Dec 10, 2018 at 4:47 PM Grassucci, Robert <
> rg2502 at cumc.columbia.edu> wrote:
>
>> Hi Li,
>> Gatan initially wanted a high flow rate for our K3 install on our Polara
>> but had problems with condensation issues.  They tried reducing the flow
>> rate of about 12 -15 so that the HS1 and HS2 (your Gatan engineer should
>> know what I am referring to) temperatures were closer to 23 and 25 C but
>> still had issues maintaining a constant flow.  They ended up giving us a
>> small dedicated chiller to solve the issue.  Good luck.
>> Bob
>>
>> -----Original Message-----
>> From: 3dem [mailto:3dem-bounces at ncmir.ucsd.edu] On Behalf Of Li Xing
>> Sent: Thursday, December 06, 2018 3:36 PM
>> To: 3dem at ncmir.ucsd.edu
>> Cc: Li Xing <lxing3 at uci.edu>
>> Subject: [3dem] K3 water flow
>>
>> We would like to upgrade to K3 camera on our JEOL microscope. According
>> to Gatan system requirements, K3 DED camera requires higher water flow rate
>> (30L/h) and higher inlet pressure (90psd) than the K2 camera, however, the
>> capacity for our JEOL water chiller is 60psi. I wonder if any other lab
>> have the same issue and appreciate you input. Thank you!
>>
>> Li
>>
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