Operation
VX 570 English V1.10
Seite 40 von 44
Settings
→
4-20mA
→
Channel 1
→
Auto Range
Settings
→
4 -20mA
→
Error Current
The scaling of the 4-20mA channel can be done
automatically "
Auto Range = on"
or manual "
AutoRange
= off"
.
With button
„>“
select the menu item
„AutoRange“
select with
„OK“
the desired scaling method.
(Automatically or manually)
"Scale 4mA"
and "
Scale 20mA"
allows to define the
desired scaling, condition is Auto scaling =off.
Select the display "Scaling 4mA" or "Scaling 20mA" with
key "> and then select with key "OK"..
Input of the scaling values will be analogous as described
before for value settings.
Using
„def“
clears up the complete settings at once.
For
„Auto on“
, the max. scaling is calculated based on
the inner tube diameter, max. measurement range and the
reference conditions settings.
Take over of the inputs with
„Save
“ or discard the
changes with
"Cancel"
Leaving the menu with
„Back
“.
This determines what is output in case of an error at the
analog output.
•
2 mA Sensor error / System error
•
22 mA Sensor error / System error
•
None Output according to Namur (
3.8mA
– 20.5 mA)
< 4mA to 3.8 mA Measuring range under range
>20mA to 20.5 mA Measuring range exceeding
To make changes first select a menu item "Current Error"
with button
„>“
and then select by pressing the
„OK“
the
desired mode
For saving the changes done press button
„Save“
to
discard the changes press button
“Cancel”.
Leaving the menu with
„Back
“.
.
0.0 m³/h
1098.6 m³/h
169,8 m/s 1098.9 m³/h
