7-A-2 Chapter 7: Gas Analyzer Configuration 42/24-10 EN Rev. 9
Modifying Measurement Range Limits
Menu Path MENU → Configure → Component specific → Measurement range
(→ Select component) → …
Selection All measurement ranges configured (at the factory) for a sample component are
displayed.
Procedure Select the measurement range with the arrow keys, press CHANGE LIMITS,
select START VALUE or END VALUE, change the measurement range limit and
confirm with ENTER.
For the automatic measurement range changeover (see page 7-A-6) to function
properly, the measurement ranges MB1, MB2, … must be configured in ascending
order, i.e. MB1 < MB2 < … .
The measurement range selected or changed and the altered number of decimal
places is shown on the screen after switching to measurement mode.
Steps After Changing
Measurement Range
Limits
Calibration of the associated measurement range should be verified after chang-
ing measurement range limits. If the ratio of the old to the new measurement
range is ≥ 1: 10, we recommend manually calibrating the end point.
Parameters of the auto-range function should be verified after changing measure-
ment range limits (see page 7-A-6).
Caldos25,
Magnos27
Measurement ranges are factory-set and cannot be modified.
Caldos27 Measurement ranges are freely selectable for binary gas mixtures.
They are factory-calibrated for the largest possible measurement
range. There is a limit to the setting capability. If, for example the
measurement ranges cross the explosive limit or areas of the
measurement ranges cannot be implemented due to ambiguities.
Measurement ranges are not freely adjustable in the case of multiple-
component mixtures with “interference components” that have been
calibrated at the factory or if a cross-sensitivity correction has been
configured. In these cases the measurement ranges are factory-set
per customer order.
Magnos206 Measurement ranges are freely selectable. At the factory they are
either set to 0–10 /15/25 /100 Vol.-% O
2
or per order.
Li ma s11,
Uras26
Measurement ranges are freely selectable. See the “Limas11,
Uras26: Instructions for Changing Measurement Range Limits”
section, page 7-A-3.
Notes for Individual
Analyzer Modules
Oxygen
Sensor
Measurement range 1 is freely adjustable from 0–5 Vol.-% O
2
to 0–
25 Vol.-% O
2
. Measurement range 2 is factory-set to 0–25 Vol.-% O
2
.
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