Hello All,
I was wondering if you could clear something up for me please.
As part of our qualification of the facility, we measure particle counts, room recoveries, air supply velocity and volume, noise and light levels and pressure differentials between rooms (its an ISO class 5 environment).
Our building management system continuously monitors the pressure differentials and alarms if it goes out of spec.
My question therefore is, are we wasting time and effort measuring the room pressure differentials manuallly with a micromanometer as part of the bienniel requalification, when the BMS monitors it all year anyway?
if the BMS is qualified and the differential pressure sensors calibrated, I see no need to measure manually the differential pressure during the requalification. In the requalification I would include the records of the differential pressures for the past (biannual, in your case) period, together with a trend analysis.
I agree. It seems a real waste of time to duplicate. Why should one use a hand held if there is an approved and existing method of collecting the required data. Just make sure that you attach all the relevant data to the protocol such as calibration certificates for the pressure transducers, etc
If BMS qualified then same data can be used. Incase any excersions pl keep support documents ready to justify along with risk assesment if any. this will be more authentic than manual recording
For facility qualification manual differential pressure monitoring may be avoided…based on the qualified BMS system…as an additional measure it can be retained as a part of BMS monitoring system re-qualification program.