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MANUAL DE INSTRUCCIONES CODIGO 80196 REV B
J
.P. SELECTA s.a.u.
Octubre 2019
7 Checking the unit (OQ)
Once the user knows how the unit works, proceed to check it. This operation is known
as Operation Qualification (OQ).
There are two levels of qualification:
7.1 Functional checking
This checking is without solvent. Do not place any beaker and thimble into the extractor.
Diagnostics utility (See chapter 9) can be used for this functional check.
Set a temperature of 100ºC and verify that the temperature of the heating surface
stabilizes at about 100ºC ± 10ºC, it remains stable and is uniform throughout the
surface.
7.2 Solvent recovery checking
This OQ operation measures the solvent recovery rate.
•
Prepare 2 or 6 aluminium beakers (on depending equipment model)
•
Measure with a cylinder 50ml of solvent, for each beaker.
•
Insert the beakers on the DET GRAS N.
•
Run a P0 program. If done with another solvent, the recovery time may vary,
becoming necessary in some cases up to 30 minutes:
•
Let the unit get cold for 20 minutes.
- Let PTFE manual valves close.
- Let coolant water open.
•
Remove the beakers set.
•
Insert another cold set of aluminium beakers.
•
Open PTFE manual valves. All solvent must fall into the beakers.
•
Measure the volume of solvent recovered on any beaker (Use a cylinder). Work
quickly to avoid solvent evaporation.
•
Calculate the recovery rate:
•
Normal recovery values are above 50 %.
Autovía A2 Km 585.1 Abrera 08630 (Barcelona) España
e-mail: selecta @jpselecta.es - website: http://www.jpselecta.es
(Sujetas a modificaciones sin previo aviso)
Temperature:
According to solvent used.
Boiling:
15 minutes.
Rinsing:
15 minutes.
Recovery:
10 minutes.
Pag.: 36
R(%) = V
/ V
*100
2
1
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