Manual
Version
Page
DB04A
EN A1-9
PKP Prozessmesstechnik
09
1.15. Real, Standardized and Normalized flow
The user-selectable engineering units of the
DB04A
has been divided in two groups: “Real and
Normal” units and “Other units”
This separation is not only there to find the unit you want to select quicker, it also separated the
“Normalized flow” from the “Standardized flow”
Figure 3: Units menu
The
DB04A
has basically 2 reference conditions: One for “Real and Normal” units and one for
“Other units”
The factory setting is as follows:
1) For all units that are used in "normal" (like ln/min), the reference conditions are always 0°C
and 1013.25 mbara. This cannot be adapted.
2) For all the other units that are “standard” (like ls/min and sccm) and the l/min the reference
conditions has to be be defined when the unit is ordered.
The reference value for all units that are not “Normal” or “Real” it has to be defined with the
purchase order. It cannot be changed after the units has been delivered.
On the sticker of the
DB04A
we will mention a reference condition. This reference condition is for
the “Standard” units only. The “normal” units will always be 0°C and 1013.25 mbara.
In future version of the firmware the reference conditions will be adjustable in the menu.