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Summary of Contents for Pyxis ST-588
- Page 2 ST-588 PTSA/Fluorescent Polymer Dual Inline Sensor User Manual June 16, 2021 Rev. 2.04 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
8.1 Methods to Cleaning the ST-588 ........ - 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
The standard ST-001 installation tee provided with each ST-588 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: Unpacking Instrument
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. 3.1 Standard Accessories •... -
Page 8: 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-588 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 9: Installation
4.1 ST-588 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-588 sensor into the ST-001 Tee Assembly, follow the steps below: 1. -
Page 10: Wiring
22–26 VDC @ 85 mA. NOTE The negative 24V power terminal (power ground) and the negative 4–20mA ter- minal on the ST-588 sensor are internally connected. Follow the wiring table below to connect the ST-588 sensor to a controller: Table 2. Wire Color Designation... -
Page 11: Connecting Via Bluetooth
4.4 Connecting via Bluetooth A Bluetooth adapter (P/N: MA-CR) can be used to connect a ST-588 sensor to a smart phone with the uPyxis® Mobile App or a computer with the uPyxis® Desktop App. Figure 4. Bluetooth connection to ST-588 sensor 5 Setup and Calibration with uPyxis®... -
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-588 and its Serial Number (SN) will be displayed (Figure 6). 4. Press on the ST-588 sensor image. -
Page 13: Calibration Screen And Reading
Zero Calibration, Slope Calibration, and 4–20mA Span for either Fluorescent Polymer or PTSA, independently. Follow the screen instructions for each calibration step. Figure 7. ST-588 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 14: Diagnosis Screen
If the sensor is severely fouled, a Dirty message will be shown. In this case, follow the procedure in the Methods to Cleaning the ST-588 section of this manual. Figure 8. ST-588 User Manual service@pyxis-lab.com... -
Page 15: Device Info Screen
Desktop application. Double click the uPyxis.Setup.exe file to install. Figure 10. uPyxis® Desktop App installation Click Install to start the installation process. Follow the screen instructions to complete the USB driver and uPyxis® installation. ST-588 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 16: Connecting To Upyxis® Desktop App
3. On uPyxis® Desktop App, click Device Connect via USB-Bluetooth (Figure 11). 4. If the connection is successful, the ST-588 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
Desktop App will default to the Information screen. On the Information screen you can set the information description for Device Name, Product Name, and Modbus Address, then click Apply Settings to save. Figure 12. ST-588 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 18: Calibration Screen
Calibration, and 4-20mA Span • PTSA: 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 13. ST-588 User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 19: Diagnosis Screen
When in the Diagnosis screen you can view the Diagnosis Condition of the device. This feature may be used for technical support when communicating with service@pyxis-lab.com. To preform a sensor Cleanliness Check, first select the Diagnosis Condition which defines the fluid type that the ST-588 sensor is currently measuring, then click Cleanliness Check. -
Page 20: Adjusting 4-20Ma Span
Figure 16. 7.3 Communication using Modbus RTU The ST-588 sensor is configured as a Modbus slave device. In addition to the Fluorescent Polymer ppm and PTSA ppb values, many operational parameters, including warning and error messages, are available via a Modbus RTU connection. -
Page 21: Sensor Maintenance And Precaution
ST-588 sensor is used as part of an automated control system. When used to control product dosing, it is suggested that the automation sys- tem be configured 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 22: Storage
To clean the ST-588 sensor, soak the lower half of the sensor in 100 mL inline sensor cleaning solution for 10 minutes. Rinse the ST-588 sensor with distilled water and then check for the flashing blue light inside the ST-588 sensor quartz tube. If the surface is not entirely clean, continue to soak the ST-588 sensor for an additional 10 minutes.
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