Additional energy adjustment by zones
Place the photometer head in parallel to the plane of the item which is being measured. See to it that
the shadow of the operator who conducts the measurement does not cast itself onto the photohead
window, as well as the shadow of any irrelevant objects that are temporarily present.
By the method stated at the previous step, irradiance is determined separately by zones А1, А2, В and
С.
Measurement can be made in any range. It is recommended for calibration to select the level of ir-
radiance at which the maximum value is at the level of
3,000 … 3,900
units.
Into the field of the respective UV zone the measured value is entered and calculation made. Above
the entry field
it is necessary to place a flag
for confirming the entry of changes. When the flag is
removed, the changes for a given field will not be rewritten.
The values of the obtained ratios are used thereafter as supplements to the ratio of total energy ad-
justment. The button
Value Reset
serves for zeroing the calculated ratios. In this case irradiance is
calculated only with taking the total ratio into account.
Output data
After the fulfillment of the necessary operations the calibration program retains all the calibration
data
in
the
Windows
register
into
the
branch
«
HKEY_CURRENT_USER\Software\TKA\VDUV\1.0
».
Generated by Foxit PDF Creator © Foxit Software
http://www.foxitsoftware.com For evaluation only.