Teledyne 3010MA - Paramagnetic oxygen analyzer, includes 0-100% range - Manual (Page 57)

Paramagnetic O2 Purity Analyzer Operation
Teledyne Analytical Instruments 57
or
L—0.00 M—95.00
H—98.00 Mode—FX/HI
Press Escape to re-enter the Analyze mode using the fixed range.
NOTE: When performing analysis on a fixed range, if the oxygen concentration
rises above 100% O
2
upper limit (default value) the output saturates at
1VDC. If the reading goes below the minimum range value the output
voltage will drop to zeroVDC However, the digital readout and the RS-
232 output continue to read the true value of the oxygen concentration
regardless of the analog output range. Oxygen values below 0% or
above 100% should not be considered valid.
4.7 The Analyze Function
Normally, all of the functions automatically switch back to the
Analyze function when they have completed their assigned operations.
Pressing the Escape button in many cases also switches the analyzer back
to the Analyze function. Alternatively, you can press the Analyze button
at any time to return to analyzing your sample.
4.8 Signal Output
The standard Model 3010MA Paramagnetic Oxygen Purity Analyzer
is equipped with two 0–1VDC analog output terminals accessible on the
back panel (one concentration and one range ID). The standard model also
includes one isolated 4–20 mA dc current outputs for the oxygen
concentration.
See Rear Panel in Chapter 3, Installation, for illustration.
The signal output for concentration is linear over the currently
selected analysis range. For example, if the analyzer is set on range that
was defined as 98–100% O
2
, then the output would be:
Table 4.1:Linear Analog Output
% Oxygen Voltage Signal Current Signal
Output (V dc) Output (mA dc)
98.0 0 4
98.2 0.1 5.6
98.4 0.2 7.2