OK, in reply to a couple of the above posts. These are Benchtop sterilisers . There is no steam supply piped in.
The setpoint is built into the software. We can only really calibrate temp & pressure to their measured values. The aim here is really to define if given a 20L vessel of steam (no...
Basically calibation is done with thermocouple & pressure gauge to align measured with indicated values. Units vary in being p or T controlled & setpoint as well from 145.5 to about 136; 2.1 to 2.2 bar
Units work, this is more an argument about at what height they want to set the bar for proving...
Hmm, again the proble is that the control system & temp set points are fixed. (we actually arent ALLOWED to modify the units as they fall under "medical devices") for an example of what we are talking about try www.cominox.it or www.mocom.it (two italian manufacturers)
TO QUOTE as4815:
"Sterilisers shall be calibrated to the correct point on the phase boundary line.Deviation from this phase boundary line represent states of superheated or wet steam or air & steam mixtures which may lead to sterilisation process failure...."
AND
"The maximum allowable wetness...
Hi,
Excuse the ignorance, but as my job is mainly electrical & its 20 years since my thermodynamics subject, I need help. The Standards Committee in Australia is proposing that steam in benchtop sterilisers (often made by boiling water in chamber, or external small boiler, or by dry heated...
