587 / 1143
18
How did we solve the problem?
§
For example,
§
A proportion of the
λ
DU
were related to the device being out of calibration
§
Not going to do a full calibration before each delivery
§
Terminal receives product from different suppliers
§
Uses accurate, calibrated flow meters in-line
§
Twice a month, levels are compared to metered flow
§
This meets some of the requirements of a calibration
§
A part of the
λ
DU
relating to calibration can be moved to
λ
DD
©ABBGroup
October23,2016|Slide35
©ABBGroup
October23,2016|Slide36
Summary - 1
§
Specialist Inspector was correct in rejecting the SIL claim
§
It wasn’t a ‘good’ certificate
§
IEC61511 Ed 2 probably wouldn’t change the decision
§
Manufacturers have practical difficulties in claiming Prior Use
§
Data relating to the each revision of the product
§
Site or operating environment specific affects
§
Really disappointing that certification bodies issue certificates like this