HYDROCAL 1005 Manual for Installation and Operation
Page 89/111
5.10.4
Input of DGA Level Adjustment
Results of laboratory analysis can be introduced in the menu
. These can be used
for calculation of correction factors for definition of the gas content. After opening of transformer
menu page, the correction factors are shown in the fields „Cur. Offset“.
For the input of results of laboratory analysis, first the date of analysis should be entered in the field
„Sample Date“. Then the average value of gas concentration is calculated and presented. After the
results of laboratory analysis have been introduced in the fields „Laboratory Value“ for H
2
, C
2
H
2
,
C
2
H
4
, CO, CO
2
, C
2
H
6
and CH
4
, the button
is activated and the new correction factor are calcu-
lated and displayed in the field „New Offset“. These values can be used or can be manually adjusted.
The new values are stored and activated by
button.
Data in the tree
are changed after modification of sensor settings. The star indi-
cates that modifications have been made; these must be transferred to the HYDROCAL 1008 unit for
activation. This means, the settings indicated are not identical to those of HYDROCAL 1008. With
next connection, it is requested whether the settings on HYDROCAL 1008 unit shall be updated (see
chapter 5.11).
