Pyxis ST-601
Operation Manual
15
The calibration solution could be the sample ClO2 itself (in the chemical tank). The concentration of CLO2
in the sample water can be determined with using a Pyxis SP-910 Handheld meter using CLO2 High Range
Direct Read method (0-1,500ppm), or by conventional titration method.
4.2.2
4-20mA Span Settings
The default 4-20mA span is 20 mA = 3000ppm CLO2 and 4 mA = 0 ppm. Users may alter the output
scale using
4-20mA Span
to change the CLO2 value corresponding to the 20mA output (Figure 13). The
maximum upper limitation of the 20mA output for ST-601 is 4000ppm when using this function.
4.2.3
Diagnosis
Click
Diagnosis
to the diagnosis page (Figures 14). In the diagnosis page, the raw data measured by the
probe is displayed. To help troubleshoot possible issues with the probe, please save an image of this
data when the probe is placed in a clean water (tap water or deionized water), in a standard, and in the
sample that the probe is intended.
Figure 12. Enter ClO2 concentration for slope calibration