Pyxis ST-710SS User Manual

Stainless steel ph sensor

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Summary of Contents for Pyxis ST-710SS

  • Page 2 ST-710SS Stainless Steel pH Sensor User Manual January 13, 2022 Rev. 0.93 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...
  • Page 3: Table Of Contents

    8 Sensor Maintenance and Precaution 8.1 Methods to Cleaning the ST-710SS Sensor ......15 8.2 Replacing pH Electrode Head (EH-710) .
  • 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).
  • Page 5: Introduction

    (EH-710) that has been independently developed by Pyxis Lab. The flat front-end design of the ST-710SS makes this platform less prone to contamination and fouling and is easy to clean. The ST-710SS sensor body is composed of 304 stainless steel and is well suited for aggressive industrial applications. The...
  • Page 6: Specifications

    2 years † Life With Pyxis’s continuous improvement policy, these specifications are subject to change without notice. † Typical life is the sensor at 25 °C temperature under normal use conditions to measure clear water; harsh working conditions or water quality may shorten life.
  • Page 7: Unpacking Instrument

    • One MA-1.5CR — (Flying Lead Cable / Male 8-Pin Adapter and Flying Leads — 4.9ft) • User Manual available online at https://pyxis-lab.com/support/ 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/. Table 2. Optional Accessories Accessory Name/Description Part Number...
  • Page 8: Installation

    4.1 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-710SS sensor into the ST-001 Tee Assembly, follow the steps below: 1. Insert the provided O-ring into the O-ring groove on the tee.
  • Page 9: Wiring

    Internally connected to the power ground 4.3 Connecting via Bluetooth Connect and power the ST-710SS sensor with the Pyxis Bluetooth adapter (P/N: MA-CR) installed as shown in the following connection diagram. The power should be sourced from a 24 VDC power terminal of a controller.
  • Page 10: Setup And Calibration With 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 4. uPyxis® Mobile App installation ST-710SS User Manual service@pyxis-lab.com | +1 (866) 203-8397...
  • Page 11: 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-710SS and its Serial Number (SN) will be displayed (Figure 5). 4. Press on the ST-710SS sensor image.
  • Page 12: Calibration Screen And Reading

    The ST-710SS sensor requires a slope calibration for pH. The pH can be calibrated with a known pH calibra- tion standard solution or with the sample water itself. The pH concentration of the sample water should be determined with a properly calibrated benchtop or portable pH analyzer, such as the Pyxis SP-600 (Portable Water Multimeter).
  • Page 13: Diagnosis Screen

    5.4 Diagnosis Screen From the Diagnosis screen, you can check the diagnosis condition. This feature may be used for technical support when communicating with service@pyxis-lab.com. Figure 7. 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 14: Setup And Calibration With Upyxis® Desktop App

    Figure 8. Bluetooth connection to ST-710SS Sensor with MA-CR and MA-NEB and uPyxis Desktop. 6 Setup and Calibration with uPyxis® Desktop App 6.1 Install uPyxis® Desktop App Download the latest version of uPyxis® Desktop software package from: https://pyxis-lab.com/upyxis/ this setup package will download and install the Microsoft.Net Framework 4.5 (if not previously installed on the PC), the USB driver for the USB-Bluetooth adapter (MA-NEB), the USB-RS485 adapter (MA-485), and the main uPyxis®...
  • Page 15: Connecting To Upyxis® Desktop App

    3. On uPyxis® Desktop App, click Device Connect via USB-Bluetooth (Figure 9). 4. If the connection is successful, the ST-710SS 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 16: 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 to save. Figure 11. ST-710SS User Manual service@pyxis-lab.com | +1 (866) 203-8397...
  • Page 17: Calibration Screen

    The ST-710SS sensor requires a slope calibration for pH. The pH can be calibrated with a known pH calibra- tion standard solution or with the sample water itself. The pH concentration of the sample water should be determined with a properly calibrated benchtop or portable pH analyzer, such as the Pyxis SP-600 (Portable Water Multimeter).
  • Page 18: Diagnosis Screen

    – 20 mA = 14 7.2 Communication using Modbus RTU The ST-710SS sensor is configured as a Modbus slave device. In addition to the pH 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 19: Replacing Ph Electrode Head (Eh-710)

    Figure 14. Inline Probe Cleaning Solution Kit To clean the ST-710SS sensor, soak the lower half of the sensor in 100 mL inline sensor cleaning solution for 10–15 minutes. Rinse the ST-710SS sensor with distilled water. If the surface is not entirely clean, continue to soak the ST-710SS sensor for an additional 10–15 m inutes.
  • Page 20: Troubleshooting

    Figure 15. Replacing EH-710 — pH Electrode Head 9 Troubleshooting If the ST-710SS sensor output signal is not stable and fluctuates significantly, make an additional ground connection — connect the black (shield, solution ground) wire to a conductor that contacts the sample wa- ter electrically such as a metal pipe adjacent to the ST-710SS tee.

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