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Summary of Contents for Pyxis ST-500W
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Page 2: Table Of Contents
Table of Contents 1 Introduction ............................2 2 Specifications ............................ 3 3 Unpacking Instrument ........................3 Standard Accessories Included with ST-500W ................4 Optional Accessories ........................ 4 Optional Accessories Information ....................... 4 4 Installation & Diagram ........................5 ST-500W Installation Instructions & Diagram ................5 Wiring ............................ - Page 3 Pyxis Lab, Inc. Standard Limited Warranty Pyxis Lab warrants its products for defects in materials and workmanship. Pyxis Lab will, at its option, repair or replace instrument components that prove to be defective with new or remanufactured components (i.e., equivalent to new).
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Page 4: Introduction
1 Introduction The ST-500W is an inline PTSA Pyxis smart sensor uniquely designed to be directly inserted into the Walchem® (pH & conductivity) and/or Turner Designs (Little Dipper-2®) inline tee assemblies. The 304SS machined stainless steel body design allows users to directly insert the sensor into existing inline tee assemblies without the need for plumbing modifications of equipment already in use. -
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. ST-500W Inline PTSA Sensor service@pyxis-lab.com... -
Page 6: Standard Accessories Included With St-500W
3.1 Standard Accessories Included with ST-500W Each ST-500W Package (P/N 58802) will include the following standard accessories. • One ST-500W Inline PTSA Sensor One Universal NUT (P/N 23133) for sensor install with Walchem -or- Turner Designs Tee Assemblies • One O-ring for sensor use with the Walchem Tee (P/N 21501) •... -
Page 7: Installation & Diagram
One O-ring for use with Turner Tee Assembly The ST-500W can be installed in a vertical or horizontal flow path with the existing Walchem or Turner Tee in place. When installed in a horizontal flow path, a downstream valve is always suggested to allow users to mitigate any potential for air bubble interference. - Page 8 Figure 3. Dimension of the ST-500W Sensor Figure 4. Dimension of the ST-500W Universal NUT Tee Assembly (mm) ST-500W Inline PTSA Sensor service@pyxis-lab.com | +1 (866) 203-8397...
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Page 9: Wiring
RS-485 A Yellow RS-485 B Black Shield, Earth ground Please refer to the table below for proper ST-500W input 4-20mA scaling in your receiving display, controller, or PLC. Figure 6. ST-500W Output Scaling (4-20mA) Value Units *NOTE* the 20mA value is adjustable to a MAX of 300ppb via uPyxis. -
Page 10: Setup And Calibration With Upyxis® Mobile App
Figure 7. 8-Pin Pyxis Sensor with MA-CR and uPyxis Mobile APP 5 Setup and Calibration with uPyxis® Mobile App 5.1 Download uPyxis® Mobile App Download uPyxis® Mobile App from Apple App Store Google Play. Figure 8. uPyxis® Mobile APP Installation ST-500W Inline PTSA Sensor service@pyxis-lab.com... -
Page 11: Connecting To Upyxis® Mobile App
2. Open the uPyxis® Mobile App. 3. In the uPyxis® Mobile App, swipe down with finger on the main screen to refresh the list of available Pyxis devices. *NOTE* this may take multiple finger swipes for Bluetooth to connect to the device. -
Page 12: Diagnosis Screen
If the sensor is severely fouled, a message will be shown. In this case, follow the procedure in the Methods to Cleaning the ST-500 Series Sensor section of this manual. Figure 11. ST-500W Inline PTSA Sensor service@pyxis-lab.com | +1 (866) 203-8397... -
Page 13: Device Info Screen
Download and install uPyxis Desktop APP on your PC or Laptop from https://upyxis.pyxis-lab.com.cn/release/pc/uPyxis.Setup-latest.zip Click Install to start the installation process. Follow the screen instructions to complete the USB driver and uPyxis® installation. Figure 13. uPyxis® Desktop App installation ST-500W Inline PTSA Sensor service@pyxis-lab.com | +1 (866) 203-8397... -
Page 14: Connecting To Upyxis® Desktop App Via Bluetooth
4. On uPyxis® Desktop App, click Device → Connect via USB-Bluetooth (Figure 15). 5. If the connection is successful, the ST-500W and its Serial Number (S/N) will be displayed in the left pane of the uPyxis® window. NOTE After the sensor and Bluetooth is powered up, it may take up to 10 seconds for the adapter to establish the wireless signal for communication. -
Page 15: Connecting To Upyxis® Desktop App Via Usb-C Cable
2) Connect a USB Type-C cable to the port at the bottom of the MA-CR and to the USB port of the laptop or computer. This will provide power the MA-WB from the laptop/computer. Connect the MA-CR to the ST-500W sensor. The MA-CR Bluetooth adapter will boost the 5V of the regular USB to 24V to power the sensor for use with uPyxis Desktop App. - Page 16 Comm port listed in the selection dropdown, you may try to select each one to see if a connection can be made. Alternatively, you may use the Windows Device Manager to identify the Comm Port that the Pyxis USB adapter is using.
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Page 17: Information Screen
Calibration, and 4-20mA Span. The screen also displays the reading of the device. The reading refresh rate is every 4 seconds. Follow the screen instructions for each calibration step. Figure 19. ST-500W Inline PTSA Sensor service@pyxis-lab.com | +1 (866) 203-8397... -
Page 18: Diagnosis Screen
Methods to Cleaning the ST-500 Series Sensor section of this manual. Figure 20. 7 Outputs 7.1 4–20mA Output Setup The 4–20mA output of the ST-500W sensor is scaled as: ST-500W Output Scaling (4-20mA) Value Units *NOTE* the 20mA value is adjustable to a MAX of 300ppb via uPyxis. -
Page 19: Adjusting 4-20Ma Span
Calibration Screen, shown in Figure 19. *NOTE* The ST-500W will allow users to adjust 20mA span to a maximum of 300ppb. For modifications of span to a higher value, the sensor must be formatted at the Pyxis factory. Contact order@pyxis-lab.com... -
Page 20: Communication Using Modbus Rtu
Screen section). See Instructional Video on proper cleaning & calibration techniques of the ST-500 series PTSA sensor below. How to Clean & Calibrate a Pyxis Lab® ST-Series Inline Sensor | Pyxis Lab® | 2022 Tutorial - YouTube ST-500W Inline PTSA Sensor service@pyxis-lab.com... -
Page 21: Methods To Cleaning The St-500 Series Sensor
Q-Tips cotton swab, or soft cloth may be used to safely clean the sensor housing and the quartz optical sensor channel. These components and more come with a Pyxis Lab Inline Probe Cleaning Solution Kit (P/N: SER-01) which can be purchased at our online E-Store. -
Page 22: Troubleshooting
9 Troubleshooting If the ST-500W sensor output signal is not stable and fluctuates significantly, make an additional ground connection — connect the clear (black, earth ground) wire to a conductor that contacts the sample water electrically such as a metal pipe adjacent to the ST-500W installation tee.
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