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Pyxis ST-601 

Operation Manual 

14 

 

 

Figure 10. Connected to a ST-601 probe and information page 

 

Figure 11. Calibration page 

4.2.1

 

Calibration 

Click 

Calibration

 to launch the calibration page (Figure 11). Place the probe in deionized water and click 

Zero Calibration

 to carry out the zero-point calibration. 

Place the probe in a known ClO2 calibration standard and tap 

Slope Calibration

 to carry out the slope 

calibration. Enter the ClO2 concentration in the dialog window as in Figure 12. For the best result, the 
ClO2 standard concentration should be in the range of 1000ppm to 3000ppm for ST-601. 

Содержание ST-601

Страница 1: ...ST 601 Inline ClO2 Concentration Probe Operation Manual Rev A Pyxis Lab Inc 1729 Majestic Dr Suite 5 Lafayette CO 80026 USA www pyxis lab com 2020 Pyxis Lab Inc Pyxis Lab Proprietary and Confidential ...

Страница 2: ...hall conform to the reasonable standards of technical competency and performance effective at the time of delivery All service interventions are to be reviewed and authorized as correct and complete at the completion of the service by a customer representative or designate Pyxis warrants these services for 30 days after the authorization and will correct any qualifying deficiency in labor provided...

Страница 3: ...8 4 Calibration and Diagnosis 8 4 1 Calibration and Diagnosis with uPyxis Mobile App 8 4 1 1 Calibration 9 4 1 2 4 20mA Span Settings 10 4 1 3 Diagnosis 11 4 2 Calibration and Diagnosis with uPyxis Desktop App 12 4 2 1 Calibration 14 4 2 2 4 20mA Span Settings 15 4 2 3 Diagnosis 15 4 3 Calibration through the Controller 17 5 Modbus RTU 17 6 Probe Cleaning and Maintenance 17 6 1 Cleaning Procedure ...

Страница 4: ...001 Inline Tee Assembly 3 4 FNPT provided with each sensor Pyxis also offers 2 and 3 inline tee assemblies as an accessory option if required TEFLON TUBE INSTALLATION FORMAT The second method is to install the probe in line using the unique OD 7mm OD clear Teflon tubing adapter 6 inches in length This tubing can be passed THROUGH the optical channel to allow for use of the sensor with smaller chem...

Страница 5: ...Range 0 01 0 35 Resolution 0 01 Accuracy 2 of reading or 0 1 percentage whichever is greater Method UV Absorbance Power Supply 24 2 VDC 65 mA Outputs Isolated 4 20mA Analog Output Isolated RS 485 Digital Output Supporting MODBUS protocol Dimension Length 6 8 inch body diameter 1 44 inch Weight 0 37 pounds Installation Formats OD 7 mm Teflon tubing for measurement flow ST 001 Inline Tee CPVC Materi...

Страница 6: ...PT 1x Tee O ring and Nut MA 1100 Bulkhead Cable 24 7Pin Cable w Adapter Flying Lead Clear Teflon Tubing 6 For Small Line Installations The Operation Manual is available from www pyxis lab com support html 1 5 Optional Accessories 2 Installation IN LINE PIPING INSTALLATION FORMAT ...

Страница 7: ...ing can be passed THROUGH the optical channel to allow for use of the sensor with smaller chemical feed line installations on the suction side of the chemical feed pump Users can use conventional OD Compression Fittings to connect desired inlet and outlet chemical line size to the ST 601 sensor in this format As this the inline Pipe installation method Pyxis recommends installation on a vertical r...

Страница 8: ...utput from the power supply is rated for 22 26 VDC 65mA Detailed wiring diagrams for common controllers are available from www pyxis lab com 4 Calibration and Diagnosis The ST 601 probe can be calibrated in a two point zero slope procedure using a deionized water sample and a standard solution containing a known ClO2 concentration For ST 601 Pyxis recommends a 0 1 or 0 3 concentration calibration ...

Страница 9: ...ease select ST 601 as applicable As shown in figure 3 the calibration page after uPyxis is connected to the probe via the Pyxis Bluetooth adapter displays the current ClO2 concentration Three functional tabs are available in this page Zero Calibration Slope Calibration and 4 20mA Span 4 1 1 Calibration Place the probe in deionized water and tap Zero Calibration to carry out the zero point calibrat...

Страница 10: ...age 4 1 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 5 The maximum upper limitation of the 20mA output for ST 601 is 4000ppm when using this function ...

Страница 11: ...anual 11 Figure 4 Enter CLO2 concentration Figure 5 Enter CLO2 concentration to set 4 20mA 4 1 3 Diagnosis Tap Diagnosis in the bottom of the app page to launch the diagnosis page Figures 6 Figure 6 Select diagnosis condition ...

Страница 12: ...ommunication hardware Figure 7 ST 601 and Pyxis Sensor USB adapter MA 485 connected in series to controller Establish connection between uPyxis desktop and the ST 601 through the following steps 1 Open the desktop uPyxis app 2 Click Device tap to launch the connection option menu 3 Select Connect via USB RS485 Figure 8 4 Select the Comm Port to make a connection Figure 9 normally only one Comm por...

Страница 13: ...Pyxis ST 601 Operation Manual 13 Figure 8 Connection Options Figure 9 Select a Comm port ...

Страница 14: ... 11 Place the probe in deionized water and click Zero Calibration to carry out the zero point calibration Place the probe in a known ClO2 calibration standard and tap Slope Calibration to carry out the slope calibration Enter the ClO2 concentration in the dialog window as in Figure 12 For the best result the ClO2 standard concentration should be in the range of 1000ppm to 3000ppm for ST 601 ...

Страница 15: ...r 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 a...

Страница 16: ...Pyxis ST 601 Operation Manual 16 Figure 13 Set 4 20mA span Figure 14 Select diagnosis condition before cleanliness check ...

Страница 17: ...e reliable and continuous ClO2 concentration readings even when installed in moderately contaminated samples Although the optics are compensated for the effects of moderate fouling heavy fouling will prevent the light from reaching the sensor resulting in false readings The ST 601 probes are designed to be easily removed inspected and cleaned if required It is suggested that the ST 601 probes be c...

Страница 18: ...ution ground connection connect the clear solution ground wire to a conductor that contacts the sample water electrically such as a brass pipe near the ST 601 probe Contact us Contact us if you have questions about the use or maintenance of the ST 601 probe Pyxis Lab Inc 1729 Majestic Dr Suite 5 Lafayette CO 80026 USA 1 866 203 8397 www pyxis lab com service pyxis lab com ...

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