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Functions
8.3 Parameter
8.3.1.3
Parameters: Measuring ranges: Hysteresis
Hysteresis AUTORANGE
MR1
MR1->MR2: 100.0% MR1
MR2->MR1:
8.3.2
Parameters: Limits
Limit 1 SO2
Limit 2 SO2
130
In the third and fourth lines of this dialog, you can set the value
at which the analyzer switches from one range to the other. The
3
400 mg/m
SO2
values are specified in % of the full-scale value of range 1 (MR1)
90.0% MR1
(see section Parameters: Measuring ranges: Setting measuring
8313
ranges (Page 129)).
Note
The hysteresis is only active if the "Actual range" parameter has
been set to the value "AR" (autoranging) in the dialog "Switch
ranges"(Parameters: Measuring ranges: Switch ranges
(Page 128)).
The two switchover points should be as far apart as possible, and
the switchover point from MR1 to MR2 must be greater than that
from MR2 to MR1.
The following conditions have been assumed in the display:
• Your analyzer has two ranges:
• The hystereses are defined as:
This means:
• If your analyzer is working in the smaller range (MR1), it
• If your analyzer is working in the larger range (MR2), it
Two limits are assigned to each component, and can be set using
this menu. A relay is triggered when the limits are violated (see
section Configuration: Inputs/outputs/pump: Assign relays
(Page 140)). Limit 1 is the lower limit, Limit 2 the upper limit.
832
– MR1 from 0 to 400 mg/m
– MR2 from 0 to 2000 mg/m
– MR1->MR2 at 100%
– MR2->MR1 at 90%.
switches over to the larger range (MR2) when a value greater
than 400 mg/m
3
SO
is measured
2
switches over to the smaller range (MR1) when a value less
than 360 mg/m
SO
is measured (=90% of 400 mg/m
3
2
Equipment Manual, 04/2022, A5E37100388-012
3
.
3
ULTRAMAT 23
).
3
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