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Summary of Contents for Pyxis LT-73 Series
- Page 2 LT-73X Series Ultra-Low Turbidity Inline Sensor User Manual February 24, 2021 Rev. 1.04 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
Table of Contents 1 Introduction 1.1 Main Features ..........2 Specifications 3 Unpacking Instrument 3.1 Standard Accessories . - 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 is powered by a 24 VDC/1.5 W power supply and provides both 4–20 mA and RS-485 Modbus output signals. When clean, the unique Pyxis sensor design offers a stability of <0.02 NTU for up to one year without calibration. Additionally, this sensor can be wirelessly accessed via MA-CR Bluetooth adapter for Diagnostics, Cleaning, and Calibration when using the uPyxis®... -
Page 6: Specifications
Compliance EPA 180.1 Pyxis Solid State Calibration Kit for Repeatable Liquid-Less Calibration, Calibration Pyxis Formazin Standards & Dry Secondary Zero Standard for Field Cal = 0.01 Repeatability, Pyxis Lab Factory Ultra-Pure Calibration Services = 0.001 Repeatability † Calibration Stability <0.02 NTU/year drift <0.01 NTU/year drift... - Page 7 Compliance ISO-7027 Pyxis Solid State Calibration Kit for Repeatable Liquid-Less Calibration, Calibration Pyxis Formazin Standards & Dry Secondary Zero Standard for Field Cal = 0.01 Repeatability, Pyxis Lab Factory Ultra-Pure Calibration Services = 0.001 Repeatability † Calibration Stability <0.02 NTU/year drift <0.01 NTU/year drift...
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Page 8: 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 9: Installation
For use in drinking water installations, the LT-73X Series ultra-low turbidity sensors should be installed using the Pyxis FR-100 Flow Reservoir Assembly. This uniquely designed reservoir operates in a by-pass format at a 200–400 mL/min flow rate and serves as a calming vessel. Specifically designed to reduce stray light... -
Page 10: Ft-100 Inline Tee Assembly Installation
For use in alternative installations, the LT-73X Series ultra-low turbidity sensors may also be installed using the Pyxis FT-100 Inline Flow Tee Assembly. This uniquely designed in-line Tee operates at up to 40 Liters/Min (10.6 GPM) flow rate and operating pressures as high as 6.9 bar (100 psi). Constructed of Schedule 40-CPVC and designed with a unique 45°... -
Page 11: Wiring
24V + Brown 24V Power ground White 4–20mA + Gray 4–20mA - Blue RS-485 A Yellow RS-485 B Pink RS-485 C Green Earth ground Black Shield Internally connected to the power ground LT-73X Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 12: Connecting Via Bluetooth
Figure 6. Bluetooth connection to LT-73X Series sensor 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 7. uPyxis® Mobile App installation LT-73X Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 13: Connecting To Upyxis® Mobile App
Connect the LT-73X Series sensor to a mobile smart phone according to the following steps: 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 LT-73X Series and its Serial Number (SN) will be displayed (Figure 4. - Page 14 10. Enter ”0.05” for the known turbidity value. NOTE Because there is no global standard for zero turbidity in the industry, Pyxis recommends 0.05 NTU as a target low range calibration using bubble-free DI wa- ter. Users may vary from this entry value if desired, however, a true “zero” turbidity calibration standard does not exist.
- Page 15 Alternatively, Pyxis Lab has developed reusable solid-state turbidity calibration kits for rapid calibration of the Pyxis LT-73X Series sensor. The T-CAL calibration kits represent an alternative to Formazin calibration for routine field calibration only. The Pyxis solid-state calibration kits provide a consistent and reproducible method to calibrate Pyxis LT-73X Series sensors, overcoming the challenges associated with the liquid stan- dard calibration.
- Page 16 Mid Range Calibration, or High Range Calibration. 5. Enter the designated NTU value assigned to the T-CAL kit for the known turbidity value. Figure 10. LT-73X Series sensor use with T-CAL kit LT-73X Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 17: Diagnosis Screen
Export & Upload. This feature may be used for technical support when communicating with service@pyxis-lab.com. To preform a Cleanliness Check, first select the Diagnosis Condition which defines the fluid type that the LT-73X Series sensor in currently measuring, then press Cleanliness Check. -
Page 18: Device Info Screen
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 19: Connecting To Upyxis® Desktop App
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. Figure 14. LT-73X Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... -
Page 20: Information Screen
Table 8. Recommended Formazin Calibration Standards Calibration Range LT-736/LT-736B LT-737/LT-737B LT-739/LT-739B Near Zero/Low Bubble-free DI or sample <0.1 NTU 5–50 NTU 1–2 NTU 5–10 NTU High 500–1000 NTU 3–5 NTU 20–40 NTU LT-73X Series User Manual service@pyxis-lab.com | +1 (866) 203-8397... - Page 21 10. Enter ”0.05” for the known turbidity value. NOTE Because there is no global standard for zero turbidity in the industry, Pyxis recommends 0.05 NTU as a target low range calibration using bubble-free DI wa- ter. Users may vary from this entry value if desired, however, a true “zero” turbidity calibration standard does not exist.
- Page 22 Alternatively, Pyxis Lab has developed reusable solid-state turbidity calibration kits for rapid calibration of the Pyxis LT-73X Series sensor. The T-CAL calibration kits represent an alternative to Formazin calibration for routine field calibration only. The Pyxis solid-state calibration kits provide a consistent and reproducible method to calibrate Pyxis LT-73X Series sensors, overcoming the challenges associated with the liquid stan- dard calibration.
- Page 23 Mid Range Calibration, or High Range Calibration. 5. Enter the designated NTU value assigned to the T-CAL kit for the known turbidity value. Figure 17. LT-73X Series sensor use with T-CAL kit LT-73X Series User Manual service@pyxis-lab.com | +1 (866) 203-8397...
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Page 24: 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 Cleanliness Check, first select the Diagnosis Condition which defines the fluid type that the... -
Page 25: Adjusting 4-20Ma Span
The LT-73X Series sensor is configured as a Modbus slave device. In addition to the turbidity NTU value, many operational parameters, including warning and error messages, are available via a Modbus RTU con- nection. Contact Pyxis Lab Customer Service (service@pyxis-lab.com) for more information. LT-73X Series User Manual service@pyxis-lab.com... -
Page 26: Sensor Maintenance And Precaution
A small, soft bristle brush, Q-Tips cotton swab, or soft cloth may be used to safely clean the sensor housing and the quartz optical sensor channel. These components and more come with a Pyxis Lab Inline Probe Cleaning Solution Kit (P/N: SER-01) which can be purchased at our online E-Store https://pyxis- lab.com/product/st-series-probe-cleaning-kit/... -
Page 27: Storage
— connect the black (shield) wire to a conductor that contacts the sample water electrically such as a metal pipe adjacent to the LT-73X Series tee. 10 Contact Us Pyxis Lab, Inc 1729 Majestic Dr. Suite 5 Lafayette, CO 80026 USA www.pyxis-lab.com...
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