Pyxis ST-730 Series User Manual
Inline turbidity sensor
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Summary of Contents for Pyxis ST-730 Series
- Page 2 ST-730 Series Inline Turbidity Sensors User Manual January 22, 2021 Rev. 1.34 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 Sensor Maintenance and Precaution 8.1 Methods to Cleaning the ST-730 Series Sensor ......16 8.2 Storage . - 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
ST-730 Series sensor in the fluid stream. The ST-730 Series sensor custom mounting tee has two ¾ inch female NPT ports for plumbing into an existing ¾ inch sample water line. The ST-730 Series sensor can be connected to any device that accepts an isolated or non-isolated 4–20mA input or RS-485 Modbus input. -
Page 6: Unpacking Instrument
Enclosure Rating IP66 Regulation With Pyxis’s continuous improvement policy, these specifications are subject to change without notice. 3 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. -
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-730 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 8: Installation
2. Insert the ST-730/730B/731/735 sensor into the tee. 3. Tighten the tee nut onto the tee to form a water-tight, compression seal. Figure 3. Dimension of the ST-730/730B/731/735 and the ST-001 Tee Assembly (mm) ST-730 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 9: St-730Ss Piping
NOTE It is recommended to install the ST-730 Series sensor tee in the pipe system where sample water flow is vertical. 4.2 ST-730SS Piping The ST-730SS sensor has 3/4” female NPT threaded ports on the sensor itself and therefore does not require a custom tee assembly. -
Page 10: Wiring
4.4 Connecting via Bluetooth A Bluetooth adapter (P/N: MA-WB) can be used to connect a ST-730 Series sensor to a smart phone with the uPyxis® Mobile App or a computer with a Bluetooth/USB Adapter (P/N: MA-NEB) and the uPyxis® Desktop App. -
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-730 Series sensor to a computer with the uPyxis® Desktop App. NOTE Using non-Pyxis USB-RS485 adapters may result in permanent damage of the ST- 730 Series 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-730 Series and its Serial Number (SN) will be displayed (Figure 4. Press on the ST-730 Series sensor image. -
Page 13: Calibration Screen And Reading
5.4 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 10. ST-730 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 14: Device Info Screen
Desktop application. Double click the uPyxis.Setup.exe file to install. Figure 12. uPyxis® Desktop App installation Click Install to start the installation process. Follow the screen instructions to complete the USB driver and uPyxis installation. ST-730 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 15: Connecting To Upyxis® Desktop App
Desktop App will default to the Information screen. On the Information screen you can set the information description for Device Name and Product Name, then click to save. Figure 14. ST-730 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 16: Calibration Screen
After the device has been calibrated and installation has been completed, to check diagnosis, click on Diag- nosis. 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. Figure 16. ST-730 Series User Manual service@pyxis-lab.com... -
Page 17: Outputs
– 4 mA = 0 NTU – 20 mA = 10 NTU The 4–20mA output of the ST-735 sensor is scaled as: • Turbidity: – 4 mA = 0 NTU – 20 mA = 10,000 NTU ST-730 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 18: Adjusting 4-20Ma Span
Figure 18. 7.3 Communication using Modbus RTU The ST-730 Series sensor is configured as a Modbus slave device. In addition to the NTU value, many op- erational parameters, including warning and error messages, are available via a Modbus RTU connection. -
Page 19: Sensor Maintenance And Precaution
Figure 19. Inline Probe Cleaning Solution Kit To clean the ST-730 Series sensor, soak the lower half of the sensor in 100 mL inline sensor cleaning solution for 30 minutes. Rinse the ST-730 Series sensor with distilled water and then check for the flashing blue light inside the ST-730 Series sensor quartz tube. -
Page 20: Storage
Series sensor from direct sunlight and precipitation. 9 Troubleshooting If the ST-730 Series sensor output signal is not stable and fluctuates significantly, make an additional ground connection — connect the clear (shield, earth ground) wire to a conductor that contacts the sample water electrically such as a metal pipe adjacent to the ST-730 Series tee.
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