LumaSense Technologies 3434i SF6 Leak Detector - Manual (Page 141)

Chapter 12
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BE6028-14 3434i SF6 Leak Detector LumaSense Technologies A/S
Page 141 of 191
When the installed optical filter has been zero-point, humidity-
interference and span calibrated then the Monitor is able to perform
accurate measurements.
Fig.12.3 Part of a calibration data print-out
12.3.3 Checking and Changing Optical Filter Parameters
Before starting calibration it is always wise to check that information
about the installed optical filter has been “entered” correctly in the
active set-up of the Monitor. If the incorrect UA number is
“entered” for the optical filter, the incorrect optical filter factors will
be used in the calculation of the calibration factors, and calibration
will therefore be useless.
The UA number can only be changed using the push-buttons on the
front panel of the monitor.