NetNotes
I had to run to turn off the other TEM in the next separate room. Both instruments were down until I could get power back on. Because of the power failure, the compressor tripped in the chiller, and both TEMs were down another day until JEOL could come out and fi x it for us. If I had separate chillers, then I would still be in operation with the one TEM. T ere are many other stories, but I won’t digress. Don’t do it. Buy separate chillers for each instrument. You will be happier for it. Lita Drain
duraine@bcm.edu Tue Oct 24
I agree with Chris. We have the domestic water tied into the process water system so they can be switched over for maintenance, while, as he said, the individual chillers still run each instrument. Best to have an over temp and fl ow alarm on the process water system with an alert to your facilities people so they know when it goes down. John Gilpin
gilpin@purdue.edu Wed Oct 25 For water fi ltration, it helps to install the plumbing and canisters for a redundant pair of parallel fi lters with valves on both sides of each fi lter unit. T at way a single fi lter can be changed without shutting down the water supply. If you’re really stingy, you can even use this to squeeze a little extra life of a fi lter which no longer provides enough fl ow on its own. Just use one fi lter alone at fi rst, and when the fl ow/pressure begins to drop below acceptable levels, open the valves on the second fi lter just a little. Steve Kuehn
sckuehn@concord.edu Wed Oct 25 I totally agree. We have individual chillers for each instrument, and all chillers are connected to the building chilled, processed water. So it is much easier to service individual chillers without shutting down all scopes. Soumitra Ghoshroy
rintugr@gmail.com Wed Oct 25 We run a main chiller to cool individual chillers. When main chiller goes down, there is an automatic switch to city water to provide cooling. John Cantino
john.catino@
mineralstech.com Wed Oct 25
I completely agree with Nestor. Our current system is single units cooled by a building system. T ere is a backup for the building system I believe. John Mansfi eld
jfmjfm@umich.edu Wed Oct 25
TEM:
service for manufacturer unsupported instruments Is there anybody in this community who has a Zeiss Libera TEM? How do you get service for repairs and maintenance form Zeiss given that Zeiss stopped manufacturing TEMs? Shahrzad Hosseini shahrzad.
hosseini@gmail.com Sat Sep 23
As a general rule, once the OEM drops support of your instrument for one reason or another, you go to a third-party support organi- zation. Try reaching out to service engineers who were servicing your instrument while it was supported—even if they are not allowed to help you, they could know who can. Network with used equipment dealers, and speak to other TEM users in your region to fi nd out support options in your geographic location. Google for similar instruments around the world, and contact tool owners to fi nd out where they obtain support. You could also try posting similar request in relevant LinkedIn user groups. Keep in mind that decent third-party service is not cheaper then OEM support. Depending on your geographical location and also age, condition, and degree of neglect of your instrument, the cost of a T&M service call for bringing it back to service could be out of reach. Valery Ray
vray@partbeamsystech.com Sat Sep 23
In Spain, Zeiss is still giving us support. Indeed, they have to do it at least until 2024 because we bought the last unit a few years ago. Sometimes you can get support from the community, so if you have some problem, you can post it here. Juan Luis
jlribas@us.es Tue Sep 26
52
www.microscopy-today.com • 2018 January
Volume 25 Number 3
2017 May
www.microscopy-today.com
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