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Percent Oxygen Analyzer
The outputs are:
0–1 V dc % of Range: Voltage rises linearly with increasing oxygen, from
0–1 V dc Range ID:
4–20 mA dc % Range: (-M Option) Current increases linearly with increas-
4–20 mA dc Range ID: (-M Option) 8 mA = Low Range, 12 mA = Me-
The analog output signal has a voltage which depends on the oxygen
concentration AND the currently activated analysis range. To relate the
signal output to the actual concentration, it is necessary to know what range
the instrument is currently on, especially when the analyzer is in the
autoranging mode.
The signal output for concentration is linear over the currently selected
analysis range. For example, if the analyzer is set on a range that was defined
as 0–10 % O
Figure 3-5: Analog Output Connections
0 V at 0 % to 1 V at 100 %. (Full scale = 100% of
programmable range.)
0.25 V = Low Range, 0.5 V = Medium Range,
0.75 V = High Range, 1 V = Air Cal Range.
ing oxygen, from 4 mA at 0 % to 20 mA at full
scale 100 %. (Full scale = 100% of programmable
range.)
dium Range, 16 mA = High Range, 20 mA = Air
Cal Range.
Examples:
, then the output would be as shown in Table 3-1.
2
Teledyne Analytical Instruments
Installation 3
3-5
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