we do not multiply softrware automatically give value which means it take 50 n give 1000.
Which model of particle countr u r using?
Laiser III
u manually multiy by 20?mean printout readings are then manually multiplied by 20?
When u take a reading what its value is shown on screen of counter e.g in D area?
We find Printout which give result on basis of 50 liter / minute.
then what does this statment mean?
why we need to multiply 20?
It means we run the particle count for 1 minute.and result is multiplied by 20 manually
If there is provision to automatic calculation in particle counter .There is no need to multiply by 20
exactly
we have Laiser ll.
laiser com with diff capactiesl like 50L/min,100Lit/min
I will have to run particle counter for 20 minute to take 1000 liter.if I will run for 1 minute and suppose I see 5 particle on printout with sampling time 1 minute then I will multiply by 20.
ok mean its for our convenience?
If u use 100 lpm particle count and run for 1 minute,will it multiply by 10 automatically?
I have read in iso guideline that we can multiply the result by 20.
practically we run for 1 min and take print out mean in 1 min it take 50lit air just?its comply guidlines? or we should run for 20 min to comply guidlines?
As per iso guideline,Using a particle count that counts at 28.3 litres per minute (or one cubic foot per minute), each result would need to be multiplied by 35.3
Using a particle counter counting at 50 litres per minute, each result would be
multiplied by 20.
This procedure is mentioned in updated guideline so it comply guideline.
1 min wala updated guidlines me hy?
Yes it is in updated guideline.
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ok thanks now its clear.
it was very helpful discussion next time when il participate in area qualification i will observe more critically.
