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Summary of Contents for Pyxis ST-590
- Page 2 ST-590 Fluorescent Polymer Inline Sensor User Manual January 29, 2021 Rev. 3.01 Pyxis Lab, Inc. 1729 Majestic Dr. Suite 5 Lafayette, CO 80026 USA www.pyxis-lab.com © 2017 Pyxis Lab, Inc. Pyxis Lab Proprietary and Confidential...
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Page 3: Table Of Contents
4.1 ST-590 Piping ........ - Page 4 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 5: Introduction
It can be simply inserted to the compression fitting port of a custom-made tee. The standard ST-001 in- stallation tee provided with each ST-590 sensor, has two ¾ inch female NPT ports and can be placed to an existing ¾ inch sample water line. Pyxis Lab also offers 2” and 3” Tee formats for larger flow installations. -
Page 6: Specifications
Enclosure Rating IP67 Regulation With Pyxis’s continuous improvement policy, these specifications are subject to change without notice. † The fluorescent polymer concentration scale is based on the polymer containing 0.25 mole % fluorescent monomer. Typical polymer specifications are attached below but may vary by producer. -
Page 7: Optional Accessories
3.2 Optional Accessories The following optional accessories can be ordered from Pyxis Customer Service (order@pyxis-lab.com) or Pyxis E-Store at https://pyxis-lab.com/shop/. Figure 1. ST-590 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 8: Installation
4.1 ST-590 Piping The provided ST-001 Tee Assembly can be connected to a pipe system through the 3/4” female ports, either socket or NPT threaded. To properly install the ST-590 sensor into the ST-001 Tee Assembly, follow the steps below: 1. -
Page 9: St-590Ss Piping
°F (40 °C). The sensor can be held by a 1.75-inch pipe clamp or mounted to a panel with four 1/4-28 bolts. See Figure 4 for ST-590SS dimensions. Figure 3. Dimension of the ST-590SS (inch) ST-590 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 10: Wiring
4.4 Connecting via Bluetooth A Bluetooth adapter (P/N: MA-WB) can be used to connect a ST-590 sensor to a smart phone with the uPyxis® Mobile App or a computer with the uPyxis® Desktop App. Figure 4. Bluetooth connection to ST-590 sensor ST-590 User Manual service@pyxis-lab.com... -
Page 11: Connecting Via Usb
4.5 Connecting via USB A USB-RS485 adapter (P/N: MA-485) can be used to connect a ST-590 sensor to a computer with the uPyxis® Desktop App. NOTE Using non-Pyxis USB-RS485 adapters may result in permanent damage of the ST- 590 sensor communication hardware. -
Page 12: Connecting To Upyxis® Mobile App
1. Open uPyxis® Mobile App. 2. On uPyxis® Mobile App, pull down to refresh the list of available Pyxis devices. 3. If the connection is successful, the ST-590 and its Serial Number (SN) will be displayed (Figure 7). 4. Press on the ST-590 sensor image. -
Page 13: Calibration Screen And Reading
When connected, the uPyxis® Mobile App will default to the Calibration screen. From the Calibration screen, you can perform calibrations by pressing on Zero Calibration, Slope Calibration, and 4–20mA Span. Follow the screen instructions for each calibration step. Figure 8. ST-590 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 14: Diagnosis Screen
From the Diagnosis screen, you can check the diagnosis condition as well as Export & Upload. This feature may be used for technical support when communicating with service@pyxis-lab.com. Figure 9. 5.5 Device Info Screen From the Device Info screen. You can name the Device or Product as well as set the Modbus address. -
Page 15: Setup And Calibration With Upyxis® Desktop App
Desktop application. Double click the uPyxis.Setup.exe file to install. Figure 11. uPyxis® Desktop App installation Click Install to start the installation process. Follow the screen instructions to complete the USB driver and uPyxis® installation. ST-590 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 16: Connecting To Upyxis® Desktop App
Connect via USB-RS485 (Fig- ure 12). 4. If the connection is successful, the ST-590 and its Serial Number (SN) 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 17: Information Screen
To calibrate the device, click on Calibration. On the Calibration screen there are three calibration tabs, Zero Calibration, Slope Calibration, and 4-20mA Span. The screen also displays the reading of the device. The reading refresh rate is every 4 seconds. Figure 14. ST-590 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 18: Diagnosis Screen
Figure 15. 7 Outputs 7.1 4–20mA Output Setup The 4–20mA output of the ST-590 sensor is scaled as: • Fluorescent Polymer: – 4 mA = 0 ppm – 20 mA = 20 ppm ST-590 User Manual service@pyxis-lab.com... -
Page 19: Adjusting 4-20Ma Span
Figure 17. 7.3 Communication using Modbus RTU The ST-590 sensor is configured as a Modbus slave device. In addition to the Fluorescent Polymer ppm value, many operational parameters, including warning and error messages, are available via a Modbus RTU connection. Contact Pyxis Lab Customer Service (service@pyxis-lab.com) for more information. -
Page 20: Sensor Maintenance And Precaution
ST-590 sensor is used as part of an automated control system. When used to control product dosing, it is suggested that the automation system be config- ured to provide backup to limit potential product overfeed, for example by limiting pump size or duration, or by alarming if the pumping rate exceeds a desired maximum limit. -
Page 21: Storage
To clean the ST-590 sensor, soak the lower half of the sensor in 100 mL inline sensor cleaning solution for 10 minutes. Rinse the ST-590 sensor with distilled water and then check for the flashing blue light inside the ST-590 sensor quartz tube. If the surface is not entirely clean, continue to soak the ST-590 sensor for an additional 10 minutes.
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