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Operation
The value of flow of and flow limits is given through two bytes, and
LSB and a MSB. Both together can be converted to an integer value.
That value is the flow in CCM.
The span value and the gas value are given in four bytes, those four
bytes are combined into a 32-bit word to be converted into a float value.
The float value is O2 concentration in ppm.
4.5.9 Analog Output
The analog output signal from the Model 3000RS-P is a voltage (0-
1 VDC) or current (4-20 mA) signal 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 auto ranging mode.
The Analog Output screen allows the user to choose the output
configuration for the range ID and the concentration. The available
choices are 0-1 VDC or 4-20 mA. Note that both outputs are not
available at the same time.
The Analog Output function is available from the third System
screen. To enter this function, press System and scroll to the third
System screen.
System screen 3:
Teledyne Analytical Instruments
3000RS-P
66
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