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Measurement Setup
The Measurement Setup is used to configure analysis
parameters such as Mode (Manual/ Interval /Continuous),
Range, Method, Auto Range, Reaction Time, Reaction
Temperature, Clean Cycle, Pre-Mixing and Prime Volume.
The Auto Range and Water Sample Pre-mixing can be
enabled or disabled with a switch button. When it is set to
Enable, the button will be highlighted with √ , as shown in
the figure
, thus their function is enabled,
otherwise it is disabled.
Measurement Mode can be selected by Manual, Interval
or Continuous. The detailed descriptions of Mode settings
are listed in Table 5.1.
Measurement
Sub-options
Parameters
Analysis mode
Analysis
measurement
range
Mode
Auto Range
Reaction Time
Reaction
Temperature
Clean Cycle
Times of Cleaning
Water
Sample Pre-
mixing
8030cX Silica Analyzer
Table 5.1: Definition of Analysis Parameters
In Manual mode, the analysis is started only once when pressing [Start] each
Manual
time. After the analysis is completed, the instrument returns to idle state.
In Interval mode, the analysis is started continuously with an interval time, such
Interval
as 1 hour, when pressing [Start]. The Start Time and Interval can be
configured.
In Continuous mode, the analysis is started immediately and run continuously
Continuous
without any interval.
Is used to measure the water sample within the concentration range of
Range 1
0µg/L~1000µg/L.
Is used to measure the water sample within the concentration range of
Range 2
1000µg/L~5000µg/L.
The measurement cycle time is almost 15 min for each measurement,
Normal
providing the highest degree of accuracy.
The measurement cycle time is about 11 min for each measurement.
Fast
Auto Range shift function can be set to ON or OFF. The Default is set to OFF.
ON/OFF
The reaction time of chemical reaction for color developing in reaction/
Seconds
measurement cell can be set. The default is set to 290 seconds.
The temperature of reaction/measurement cell can be set. The default is set to
° C
45 ° C.
The clean times for cleaning reaction/measurement cell with samples is set.
And the default is set to 1.
Water Sample Pre-mixing function can be set to ON or OFF to enable or disable
the peristaltic pump 2 to flush air back to flow cell (or sample vial) and stir water
ON/OFF
samples to make sample homogeneous in flow cells. The Default is set to OFF
Prime Volume is set according to the sample tubing length.
This function is used to rinse the sample tubing with the
freshwater sample to ensure measurement accuracy. The
prime volume can be calculated with the following
Equation:
Prime Volume, mL =L
Where:
L
is the length of sample tubing in cm .
Sample Tubing
For example, when the sample tubing length of 1/8" OD
(Outer Diameter) is 50cm, the Prime Volume is 1.2mL
(50 ÷ 50+0.2). The default value of the prime volume is set
to 1.2mL.
Definition of Parameter
System Running Chapter 5 | 27
⁄ 50+0.2
Sample Tubing
.
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