Orbis AirSTAR, Руководство по эксплуатации

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4.2.3 Creating a CPPP Method
First, make sure the method type is switched to C P PP as shown in image 19.
Give the method a name. Then, select the desired:
• Temperature scale (ºC, ºF, or K)
• “Detecting” type. Either:
o
PP for a Pour Point type method
o
CP for a Cloud Point type method
Then, in case of PP:
• Start at:
o
“START” > the first measurement will be made at the first whole
degree lower than the room temperature of the sample (example:
sample temperature when starting the test is 21.7 ºC? Then first
aspiration will be done at 20 ºC.)
o
or “ENTER VALUE HERE” > the first measurement will be made at
the sample temperature set here (example: “Start at: 10 ºC” will
command the instrument to cool the sample down to 10 ºC before
the first measurement is made at that temperature).
NOTE: if the first bath step is a warming step instead of a cooling
step (for instance with a PP method where the bath must be 65 ºC
to warm up the sample to 45 ºC), the steps will be executed
according to the program settings, which means warming up the
sample until it reaches 45 ºC and then cooling the sample down.
The only thing “Start at” actually controls is the sample temperature
at which the first measurement will take place. “Start at” does not
make the bath skip warming/cooling steps! Make sure that the
“Start at” temperature and first cooling step are in logical
correlation with each other”.
• Sampling rate: select the measurement temperature interval
(measurement every 1 ºC, every 2 ºC, or every 3 ºC, and so on).
• PP Hold: select the number of seconds that the jar must be tilted and held
horizontally before Pour point detection can be considered complete.