Teledyne Analytical Instruments 3000PA-EU, Руководство по эксплуатации

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4 Operation 4 Operation
4 Operation 4 Operation
4 Operation Model 3000PA
4-16
Teledyne Analytical Instruments
4.6.2 Autoranging Analysis
Set your analysis ranges as in 4.6.1, above. Leave
Mode
in
Auto
, or
use the arrow buttons to change back to
Auto
.
When operating in autoranging, if the oxygen concentration in your
sample goes ABOVE your HIGHEST range setting, the analyzer will go
into the special 25 % cal range.
However, if one of your range settings is below 0-25 % and another is
set above 0-25 %, the special 0-25 % Air Cal range will NOT activate as the
oxygen level goes through 25 %. Nevertheless, if the oxygen concentration
in your sample goes ABOVE your HIGHEST range setting, the analyzer
will THEN drop back down into the special 25 % cal range.
Once the oxygen concentration drops back down into your highest
range setting, the analyzer will automatically switch back to that range.
CAUTION: While the analyzer is in the Air Cal range, the oxygen
reading cannot go over 25 %, even if the oxygen
concentration is higher than 25 %.
4.6.3 Fixed Range Analysis
The autoranging mode of the instrument can be overridden, forcing the
analyzer DC outputs to stay in a single predetermined range.
To switch from autoranging to fixed range analysis, enter the range
function by pressing the
Range
button on the front panel.
Use the < > arrow keys to move the blinking over
AUTO
.
Use the
∆∇
arrow keys to switch from
AUTO
to
FX/LO
,
FX/MED,
or
FX/HI
to set the instrument on the desired fixed range (low, medium, or
high).
L—1.00 M—5.00
H—10.00 Mode—FX/LO
or
L—1.00 M—5.00
H—10.00 Mode—FX/MED
or
L—1.00 M—5.00
H—10.00 Mode—FX/HI