Pyxis HM-500 Series User Manual
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Pyxis HM-500 Series User Manual

Oil-in-water inline sensor
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  • Page 2 HM-500 Series Oil-In-Water Inline Sensors User Manual January 29, 2021 Rev. 4.52 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 HM-500 Series Sensor ......22 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).

  • Page 5: Introduction

    “may” agree with each other in a relative sense, but this is not always a guarantee. The HM-500 Series is designed to be calibrated to agree with the oil-in- water concentration from a given oil type determined by commonly used methods. The calibration of the HM-500 Series sensor should be initially done by the user with an actual prepared oil-in-water standard, within the detection range of the sensor itself.

  • Page 6: Main Features

    Up to 100 psi (0.7 MPa) Enclosure Rating IP67 Regulation With Pyxis’s continuous improvement policy, these specifications are subject to change without notice. † The oil-in-water concentration range is based on a marine diesel oil standard. HM-500 Series User Manual service@pyxis-lab.com...
  • Page 7 Up to 290 lbs (2.0 MPa) Enclosure Rating IP67 Regulation With Pyxis’s continuous improvement policy, these specifications are subject to change without notice. † The oil-in-water concentration range is based on a marine diesel oil standard. HM-500 Series User Manual service@pyxis-lab.com...

  • Page 8: Unpacking Instrument

    510 sensor. This product must be diluted for use with HM-500 and HM-520 inline sensors to measure within their range. Once the HM-500 Series sensor is calibrated to a known oil- in-water standard, you may use the equivalent value of the prepared oil-in-water secondary standard for future sensor calibrations.

  • Page 9: 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 2. HM-500 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...

  • Page 10: Installation

    4.1 HM-500/510/520 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 HM-500 Series sensor into the ST-001 Tee Assembly, follow the steps below: 1.

  • Page 11: Hm-500Ss/510Ss/520Ss Piping

    104 °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 stainless steel sensor dimensions. Figure 4. Dimension of the HM-500SS/510SS/520SS (inch) HM-500 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...

  • Page 12: Wiring

    4.4 Connecting via Bluetooth A Bluetooth adapter (P/N: MA-WB) can be used to connect a HM-500 Series sensor to a smart phone with the uPyxis® Mobile App or a computer with the uPyxis® Desktop App. The power should be sourced from a 24 VDC power terminal of a controller.

  • Page 13: Connecting Via Usb

    4.5 Connecting via USB A USB-RS485 adapter (P/N: MA-485) can be used to connect a HM-500 Series sensor to a computer with the uPyxis® Desktop app. NOTE Using non-Pyxis USB-RS485 adapters may result in permanent damage of the HM- 500 Series sensor communication hardware.

  • Page 14: Download Upyxis® Mobile App

    5.1 Download uPyxis® Mobile App Download uPyxis® Mobile App from Apple App Store Google Play. Figure 7. uPyxis® Mobile App installation HM-500 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...

  • Page 15: 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 HM-500 Series and its Serial Number (SN) will be displayed (Figure 4. Press on the HM-500 Series sensor image.
  • Page 16 500 ppm equivalent oil-in-water concentration recognized by the fluorescent signature of the HM-500 Series sensor. Due to the different oil-in-water concentration ranges in the HM-500 Series sensors, follow the guidelines below to properly prepare the OIW-500 solution for each sensor: •...

  • Page 17: Diagnosis Screen

    Clean message will be shown. If the sensor is partially fouled, a yellow Becoming Dirty message will be shown. If the sensor is severely fouled, a red Dirty message will be shown. In this case, follow the procedure in the Methods to Cleaning the HM-500 Series Sensor section of this manual. Figure 10.

  • Page 18: Device Info Screen

    6 Setup and Calibration with uPyxis® Desktop App The HM-500 Series sensor should be initially calibrated with a two-point (zero + slope) procedure using a deionized (DI) water sample (zero) and a prepared solution (slope) containing the actual oil-in-water de- sired.

  • Page 19: Install Upyxis® Desktop App

    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. HM-500 Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...

  • Page 20: Connecting To Upyxis® Desktop App

    Connect via USB-RS485 (Fig- ure 13). 4. If the connection is successful, the HM-500 Series 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 21: Information Screen

    For the first calibration, it is required to prepare an oil-in-water calibration solution using the desired oil with a concentration within the range of the HM-500 Series sensor being used (i.e. HM-500 should be calibrated with a user-prepared, oil-in-water solution between 1 and 10 ppm). The user-prepared, oil-in- water calibration solution can be made by mixing a sample of the oil with DI water to develop a known ppm level.
  • Page 22 500 ppm equivalent oil-in-water concentration recognized by the fluorescent signature of the HM-500 Series sensor. Due to the different oil-in-water concentration ranges in the HM-500 Series sensors, follow the guidelines below to properly prepare the OIW-500 solution for each sensor: •...

  • Page 23: Diagnosis Screen

    Clean message will be shown. If the sensor is partially fouled, a yellow Becoming Dirty message will be shown. If the sensor is severely fouled, a red Dirty message will be shown. In this case, follow the procedure in the Methods to Cleaning the HM-500 Series Sensor section of this manual. Figure 16.

  • Page 24: Adjusting 4-20Ma Span

    Figure 18. 7.3 Communication using Modbus RTU The HM-500 Series is configured as a Modbus slave device. In addition to the oil-in-water ppm value, many operational parameters including warning and error messages are available via a Modbus RTU connection. Contact Pyxis Lab Technical Service (service@pyxis-lab.com) for more information.

  • Page 25: Sensor Maintenance And Precaution

    To clean the HM-500 Series sensor, soak the lower half of the sensor in 100 mL of the prepared clean- ing solution for 10 minutes and gently scrub the quartz optical sensor channel. Rinse the HM-500 Series sensor with distilled water and then check for the flashing blue light inside the HM-500 Series sensor quartz tube.

  • Page 26: Storage

    Series sensor from direct sunlight and precipitation. 9 Troubleshooting If the HM-500 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 HM-500 Series tee.

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