LumaSense Technologies 3434i SF6 Leak Detector User Manual

Page 140

Chapter 12

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BE6028-14

3434i SF6 Leak Detector

LumaSense Technologies A/S

Page 140 of 191

humidity-interference calibration data in this filter bank was

updated.

e. Humidity gain factor: if a number appears here this means

that this filter bank contains calibration data obtained during

the humidity-interference calibration of filter “A”.

If the following three conditions are found in any filter bank:

Gas name: if the name which appears here is the same

as the name of the gas you intend to measure with filter

“A”;

Span Calibration performed: if a date appears here;

and

Conversion factor: a number appears here;

Then this filter has been properly span calibrated with the

named gas. The filter bank containing this calibration data

is the filter bank, which has to be made active when filter

“A” is to measure this named gas.

However, if the Gas name: is given as “Gas UA number”

then the filter has only been checked to see that it is

functioning correctly, it has not been span calibrated to

measure the gas you wish to measure.

2. Under the heading GENERAL INFORMATION FOR WATER

FILTER – ACTIVE CALIBRATION DATA : check the following

information:

Zero-point Calibration performed: if a date appears here

this is the last time the water-vapour filter was zero-point

calibrated.

Concentration offset factor: if a number appears here

this means that the water-vapour filter has been zero-point

calibrated.

Span Calibration performed: if a date (year-month-

day) appears here, this is the last time span calibration of

the water-vapour filter was performed.

Conversion Factor: if a number appears here this means

that the water-vapour filter has been span calibrated.

When the water-vapour filter has been zero-point calibrated and

span calibrated it is able to measure the absolute concentration of

water vapour in any gas sample in the analysis cell of the Monitor,

and it requires no further calibration.