[labnetwork] Jetfirst 200

[Owain Clark]

No schematics but we've had a few failures on these over the years and it is usually the thyristor modules which you should be able to replace with off the shelf units. Sometimes they go bang with a good noise. They are not that complicatedly internally with regards to power electronics as I recall.. The PLC drives the thyristor modules on 3 phases, one per bank of lamps either via manually set power or as part of a sensed feedback loop. On the power side I do not think there is much else to check. Make sure your banks of lamps meter out correctly when disconnected from the supply also I guess.


From: labnetwork <labnetwork-bounces at mtl.mit.edu> On Behalf Of Goodman, James R
Sent: 24 November 2021 17:34
To: labnetwork at mtl.mit.edu
Subject: [labnetwork] Jetfirst 200

CAUTION: This e-mail originated outside the University of Southampton.
Hello all,
I have a Jetfirst 200 RTA system that I am having some problems with. I have been working with the vendor and they have been helpful with suggestions for troubleshooting but have not been able or willing to provide electrical schematics. I am popping a couple of breakers when I try to heat the system and really need these schematics to do any significant diagnostic work. Does anyone have these drawings that they would be willing to share? We bought this system used and only have an operations manual.
Thanks, Jay.


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James Goodman
ETIC Clean Room Equipment Mgr
CORE RESEARCH FACILITY
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