Teledyne 6000B Operating Instructions Manual page 19

Photometric Analyzer
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-
Examples:
The analog output signal has a voltage which depends on the sample
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 signaloutput for concentration is linear over currently selected
analysis range. For example, if the analyzer is set on a range that was
defined as 0-10 %, then the output would be as shown in Table 2-1.
ing sample concentration, from 4 mA at 0% to 20
mA at full scale 100%. (Full scale = 100% of
programmed range.)
dium Range, 16 mA = High Range, 20 mA = Cal
Range.
Figure 2-5: Analog Output Connections
Teledyne Analytical Instruments
Part I: Control Unit
Part I: 2-5