Exfo IQS-12002B Calibration System Bedienungsanleitung PDF herunterladen (Seite 11)

Introducing the IQS-12002B Calibration System

Calibration System 7

Calibration and Verification: Assessing Conformity

³ Outside specifications

When some results are outside specification limits. Nevertheless,

non compliance cannot be established because of measurement

uncertainties. Results are bound by the following limits:

When one of the two first conclusions applies to the unit under test, it is up

to you to determine if measurements taken with that unit, before

verification, are considered valid. This depends on the following:

Whether a deviation outside published specifications can be tolerated

for these measurements.

The proximity of the measurements, taken with the unit, to the

maximum allowed deviation.

³ Outside specifications

The unit is definitely not within specifications. The deviation is larger

than the sum of the specification and the calibration uncertainty.

For example, for power meter models whose specification and

calibration uncertainties are respectively ±5 % and ±3.1 % (at

1550 nm), the deviation will allow us to conclude the following:

Inside specifications

Inside specifications*

spec deviation< spec≤ 0.825+ Ucal⋅

deviation spec> 0.825+ Ucal⋅

deviation 2.5 %≤

2.5 % deviation< 5%≤

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Exfo IQS-12002B Calibration System Bedienungsanleitung Seite 11