Hi Nik
I think what Rick is looking for here is a conversion of this 5kg per square 
cm to something more relatable; to some torque wrench unit. I've never 
been able to find a torque wrench with such units or a conversion either.

Thanks 
Bill





Date sent:      	Tue, 31 Jan 2006 11:46:42 -0600
Send reply to:  	[log in to unmask]
From:           	Nik Binder <[log in to unmask]>
Subject:        	Re: Carlo Erba AS 200-LS
To:             	[log in to unmask]

> Hi Rick:
> 
> When you have reassembled the auto sampler and replaced the slide with a new
> one use use a dynamometer with a force of 5kg per square cm.  You then need
> to operate the auto sampler without using up any consumables.  Ensure that
> the instrument is in READY status and enter the following parameter values:
> 
> CYCLE	:1=10 SEC
> START	:2= 2 SEC
> STOP	:3= 5 SEC
> 
> Press the exclusion key for OXY INJ and NO PEAK STOP.  Press START key and
> let this operate for a period of time.  The auto sampler will actuate every
> 10 seconds.  The recommended length of time to operate the new slide like
> this is 3 hours to ensure that the slide is operates smoothly and 'bed'
> easily.  I suspect an operation of 1 hour would be more than enough.
> 
> At this point it is recommended to remove the slide again and clean items
> 6-11-12 (from the AS200 auto sampler figure, plates and slide) with ethanol
> and remove any particles that may be evident.  Re-assemble and tighten the
> bolts with a dynamometer using a force of 4 kg per square cm this time.
> 
> When you have performed this a number of times you do get a feel for the
> tightness of 4 and 5 kg per square cm.  A dynamometer is another word for
> torque wrench.
> 
> I hope these instructions are helpful.
> 
> Regards
> Nik Binder
> 
> -----Original Message-----
> From: Stable Isotope Geochemistry [mailto:[log in to unmask]] On Behalf
> Of Rick Heemskerk
> Sent: January 31, 2006 10:36 AM
> To: [log in to unmask]
> Subject: Carlo Erba AS 200-LS
> 
> has anyone got the torque setting required for tightening the 4 bolts on the
> Carlo Erba 
> AS 200-LS solid auto sampler pressure plate? The instructions say up to 5 kg
> per 
> square cm (pressure?). It is supposed to be re-tighted later to 4 kg per
> square cm after 
> letting the new slide "bed in".
> 
> thanks
> Rick
> 
> A. Richard Heemskerk               	[log in to unmask]
> Environmental Isotope Laboratory   	Telephone: 519-888-4567 
> Department of Earth Sciences       	Extension: 5838
> University of Waterloo             	Facsimile: 519-746-7484
> Waterloo, Ontario, Canada N2L 3G1  
> http://sciborg.uwaterloo.ca/research_groups/eilab