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Emerson Process Management GmbH & Co. OHG5-26
X-STREAM X2
Instruction Manual
HASX2E-IM-HS
02/2012
5.7 Checking the Settings
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 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!