I had wondered if that was the case. Well, at least I'll get to do it properly.
Bethany Theiling, Ph.D.
Assistant Professor, Geochemistry
Department of Geosciences
University of Tulsa
800 Tucker Drive
Tulsa, OK 74104
From: Stable Isotope Geochemistry <[log in to unmask]> on behalf of gerard olack <[log in to unmask]>
Sent: Thursday, October 27, 2016 5:42 PM
To: [log in to unmask]
Subject: Re: [ISOGEOCHEM] time it takes to vent IRMS
The valve(s) on the turbo pump(s) are normally open solenoid valves.
They close with the power on, and will open as soon as the power goes
off--keeps oil from backing up into the flight tube. When you shut it
down your self, with the power staying on, there is a delay that lets
the turbo pumps spin down before the system vents. You loose that delay
if the power goes out.
Best to shut it down your self. I might be good time to clean the
On 10/27/2016 5:29 PM, Theiling, Bethany wrote:
> Hi everyone,
> My building is undergoing some electrical work this weekend, in which the power will be off for a few hours. The company offered generators for lab equipment that I'd like to take advantage of. I don't yet have a UPS.
> The problem is, my IRMS is hardwired into the power conditioner, which is hardwired into the building. So, in order to set up a generator, they basically have to wire the generator to the breaker. This involves (they think) 15-30 sec of no power to the power conditioner and IRMS.
> My question is: how long without power can the Delta V Advantage go before it vents? It usually takes a few minutes for my turbo to start winding down. Could I go the 30 sec, or even a minute without power? Or, is it just better to vent the instrument purposefully tomorrow night and not risk anything?
> As always, many thanks.
> Bethany Theiling, Ph.D.
> Assistant Professor, Geochemistry
> Department of Geosciences
> University of Tulsa
> 800 Tucker Drive
> Tulsa, OK 74104