Related Manuals for Pyxis ST-601
Summary of Contents for Pyxis ST-601
- Page 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...
- Page 2 Device Warranty Term The Pyxis warranty term for the ST-601 probe is thirteen (13) months from original shipment from Pyxis. In no event shall the standard limited warranty coverage extend beyond thirteen (13) months from original shipment date.
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Page 3: Table Of Contents
Table of Contents Introduction ..........................4 Features of the Pyxis ST-601 ......................4 Specifications ..........................5 Un-packing Instrument ......................... 5 Standard Accessories ........................6 Optional Accessories ........................6 Installation ..........................6 Quick 4-20mA Start ........................8 Calibration and Diagnosis......................8 Calibration and Diagnosis with uPyxis Mobile App ............... 8 4.1.1... -
Page 4: Introduction
ClO2 solution using a UV light source. The probes have a built-in reference light source and a reference light detector in addition to the main light source and main light detector. The ST-601 probes can be connected to any device that accepts an isolated or non-isolated 4-20mA input or RS-485 Modbus. -
Page 5: Specifications
Remove the instrument and accessories from the shipping container and inspect each item for any damage that may have occurred during shipping. Verify that all accessory items are included. If any item is missing or damaged, please contact Pyxis Lab Customer Service at service@pyxis-lab.com. Pyxis ST-601... -
Page 6: Standard Accessories
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 Pyxis ST-601 Operation Manual... - Page 7 The primary method is to install the ST-601 probe in-line with of the suction side of the chemical feed pump in piping format. This method should ideally in a vertical line run to avoid chlorine dioxide gas bubble interference. This can be done with the standard ST-001 Inline Tee Assembly (3/4”...
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Page 8: Quick 4-20Ma Start
@ 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 standard. -
Page 9: Calibration
Tap the discovered ST-601 probe to connect to the probe. uPyxis app can identify the probe type if multiple Pyxis probes are discovered in the scan. For legacy old generation probes, a dialog message window will be displayed to ask the user to tell the app the probe type. In this case, please select ST-601 as applicable. -
Page 10: 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. Pyxis ST-601... -
Page 11: Diagnosis
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 Pyxis ST-601 Operation Manual... -
Page 12: Calibration And Diagnosis With Upyxis Desktop App
Download and install the uPyxis desktop app from https://www.pyxis-lab.com/resource/software_driver/uPyxis.Setup-1.5.9.2.zip Connect and power the ST-601 probe to a computer via the Pyxis Sensor/USB adapter (P/N MA-485) according to connection diagram below. *NOTE* Using other USB-485 adapters may result in permanent damage of the ST-601 probe communication hardware. - Page 13 Figure 8. Connection Options Figure 9. Select a Comm port Pyxis ST-601 Operation Manual...
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Page 14: 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. Pyxis ST-601... -
Page 15: 4-20Ma Span Settings
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. - Page 16 Figure 13. Set 4-20mA span Figure 14. Select diagnosis condition before cleanliness check Pyxis ST-601 Operation Manual...
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Page 17: Calibration Through The Controller
CLO2 ratio and the zero-point 4-20mA current value. Please follow the controller manufacturer’s procedure to carry the 4-20mA calibration. With the default probe settings, the controller should be set up to convert 4 mA = 0 ppm and 20 mA = 3000ppm for ST-601 concentrations. -
Page 18: Other Common Troubleshooting Issues
6.2 Other Common Troubleshooting Issues If the ST-601 probe output signal is not stable and fluctuates significantly, make an additional solution 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.
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