Hach BioTector B7000i - 8.3.10 CO2 Analyzer

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8.3.10 CO2 Analyzer
ANALYSIS GRAPH SCALE 10000ppm
 ANALYSIS GRAPH SCALE determines the scale of the y-axis
“CO
2
analyzer’s ppm-CO
2
readings” on the Analysis Graph
Screen (see Section 2.1.4 Analysis Graph Screen for
details). This function allows the system to display CO
2
data
peaks in optimal resolution on the LCD screen.
 The ANALYSIS GRAPH SCALE is independent of the CO2
ANALYZER RANGE described below. Note that, in certain
circumstances, when the displayed CO
2
peaks on screen
exceeds the scale of the graph, the CO
2
analyzer keeps
measuring and integrating the CO
2
readings to obtain the TOC
result, without losing any CO
2
data.
INTERFACE RS232
 INTERFACE (RS232 by default) defines whether the
communication between the CO
2
Analyzer and the BioTector is
by analog (4-20mA) or digital (RS232) signals.
BAUDRATE 9600
 BAUDRATE (9600bps by default) specifies the data
communication signaling speed of CO
2
Analyzer when the
INTERFACE is programmed as RS232 above.
CO2 ANALYZER RANGE 15000ppm
 CO2 ANALYZER RANGE (15000ppm by default) defines the full
scale range of the CO
2
analyzer installed inside the BioTector.
 When RS232 INTERFACE is used, CO2 ANALYZER RANGE
only displays the range of the specific CO
2
analyzer installed into
the BioTector.
 When 4-20mA INTERFACE is used, CO2 ANALYZER RANGE
defines the full scale of the 4-20mA analog input signal coming
from the CO
2
analyzer.
CO2 ANALYZER CAL
 The CO2 ANALYZER CALIBRATION menu allows the user to
change the CO
2
analyzer range and the CO
2
analyzer zero and
span parameters when necessary.
 If the INTERFACE is RS232, the calibration range of the CO
2
analyzer can be changed using the CO2 ANALYZER
CALIBRATION menu directly.
 If the INTERFACE is 4-20mA, and if it is absolutely necessary to
change the CO
2
analyzer range, please contact manufacturer or
distributor for details of the CO
2
analyzer calibration procedures.