beautypg.com

Teledyne BDS-3000 - Oxygen analyzer User Manual

Page 73

background image

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