LumaSense Technologies 3434i SF6 Leak Detector - Manual (Page 139)

Chapter 12
______________________________________________________________________
_____________________________________________________________________________
BE6028-14 3434i SF6 Leak Detector LumaSense Technologies A/S
Page 139 of 191
calibration factors compare with the “new” calibration factors
calculated during re-calibration tasks, see section 12.3.1 .
Fig.12.3 illustrates only part of a typical calibration data print-out.
Note that there are five different filter banks, which contain
calibration data. These banks are numbered from 1 to 5. This
enables each filter to be calibrated to measure up to 5 different
gases. Before the filter is calibrated to measure any one particular
gas, you have to inform the Monitor about where you wish to store
the calibration data for this gas. The number of the filter bank chosen
when operating in Set-Up mode is called the active filter bank (see
Chapter 9 ).
When checking the optical filter using the front panel push-buttons,
Chapter 10 provides details of how to obtain a print-out of calibration
data using a printer with an RS 232 interface.
Note that calibration data in the active filter bank is always printed
out directly after the optical filter factors data and this data is also
shown under the heading CALIBRATION DATA IN FILTER BANK
: X, where X is the number of the filter bank.
Note: all calibration factors are expressed as exponential numbers.
For example: 104.05E-3, this is the same as the number 104.05 x
10-3 = 0.10405
1. Refer to your calibration data print-out and check the following
information:
a. Under the heading GENERAL CALIBRATION
INFORMATION FOR FILTER A: check that the UA number
of the installed optical filter is UA0988 the same as the UA
number appearing on the “Calibration Chart” for the optical
filter in position “A”.
Under the headings CALIBRATION DATA IN FILTER
BANK:1; CALIBRATION DATA IN FILTER BANK:2;
CALIBRATION DATA IN FILTER BANK:3; CALIBRATION
DATA IN FILTER BANK:4; and CALIBRATION DATA IN
FILTER BANK:5 check the following information:
b. Zero-point calibration performed: if a date appears here
(year-month-day) this is the last time the zero-point
calibration data in this filter bank was updated.
c. Concentration offset factor: if a number appears here this
means that this filter bank contains calibration data obtained
during a zero-point calibration of filter “A”.
d. Hum. Interference Calibration performed: if a date
appears here (year-month-day) this is the last time the