Teledyne BDS 3000, Operating Instructions Manual

Page: 73 / 100

Oxygen Analyzer Operation
Teledyne Analytical Instruments
59
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 BDS 3000 Oxygen Analyzer is equipped with
two 0–1 VDC analog output terminals accessible on the back panel (one
concentration and one range ID), and two isolated 4–20 mA DC current
outputs (one concentration and one range ID).
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 a range
that was defined as 0–100 ppm O
2
, then the output would be as shown in
Table 4-2.
Table 4-2: Linear Output for a 0-100 ppm O2 Range
Voltage Signal Current Signal