Re: Protect probe from absence of VT air
Jim Breeyear (jbreeyea@zoo.uvm.edu)
Mon, 24 Nov 1997 09:20:17 -0800
Feng Qiu wrote:
>
> Hello, all,
> The question is that is there a way to protect the probe when VT air is
> off in the middle of experiment. For example, If a exp running during
> weekend, use temp control at 30 degree. The power is off for a few
> minutes, the instrument will continue running because the UPS, but air
> compressor will not run except someone start them again. This mean the
> heat in the probe will continue heating without VT air. I believe this
> will cook the probe. What is the solution for this potential problem?
> Feng Qiu
> --
> ==============================================================
> | Feng Qiu, Ph.D. Department of Chemistry |
> | Manager of NMR Facility Oklahoma State University |
> | Office: 405-744-4308 Stillwater, OK 74078-3071 |
> | FAX: 405-744-6007 mailto:fqiu@biochem.okstate.edu |
> | http://nmrserv.chem.okstate.edu/ |
> ==============================================================
I wouldnt think that it would continue to heat as most controllers has a
flow detector to shut off the heater. If not I would put one in the air
line and hook it to the power for the VT unit.
--
=======================================
Jim Breeyear Manager Inst. Lab.
Chemistry Dept Cook Building
Univ. of Vermont
Burlington, Vt. 05405
Tel:802-656-0196