Emerson ROSEMOUNT Xstream X2 Series User Manual

Emerson Process Management GmbH & Co. OHG 3-27
X-STREAM X2FD
Instruction Manual
HASXMDE-IM-EX
01/2015
3
Startup
3.9 Checking the settings
Additionally, the “Position” parameter allows
the X-STREAM analyzer to zoom either the
lower or the higher end of the range.
Position: LowScale
Output signal
Concentration
Concentration
Switch point
(“Zoom” parameter applied
from LowScale)
Switch point
(“Zoom” parameter applied
from HighScale )
Zoomed area
HighScaleLowScale
normal
zoomed
If the parameter is set to LowScale, the zoo-
med area is at the lower end of the measu-
rement range.
When switching is set to automatic, a hy-
steresis of 10 % of the output signal range is
applied to the switch point:
Switch point in mA,
measured in zoomed area
Output signal
range
rising con-
centration
falling con-
centration
0 ... 20 mA 20 mA 18 mA
4 ... 20 mA 20 mA 18.4 mA
Position: HighScale
Output signal
Zoomed area
HighScaleLowScale
normal
zoomed
If the parameter is set to HighScale, the zoo-
med area is at the upper end of the measu-
rement range.
When switching is set to automatic, a hy-
steresis of 10 % of the output signal range is
applied to the switch point:
Switch point in mA,
measured in zoomed area
Output signal
range
rising con-
centration
falling con-
centration
0 ... 20 mA 2 mA 0 mA
4 ... 20 mA 5,6 mA 4 mA
"Zoom" parameter value
"Zoom" parameter value
Note!
For both fi gures given below, the "Zoom"
parameter is set to the same value (here:
about 37 %), but, depending on parameter
"Position", is once applied from the LowScale
end, and once from the HighScale end!

Emerson ROSEMOUNT Xstream X2 Series Specifications

General

Brand	Emerson
Model	ROSEMOUNT Xstream X2 Series
Category	Measuring Instruments
Language	English