LT-632 Submersible Turbidity Sensor
www.pyxis-lab.com DATA SHEET LT-632 Submersible Turbidity Sensor Product Description The LT-632 is a submersible, waterproof, self-cleaning sensor that utilizes dual wavelength detection technology to measure turbidity in water or process media. The sensor automatically compensates for disturbances caused by flow fluctuations, climate change, color change or changes in turbidity. The instrument is virtually maintenance-free and the self-cleaning capability of the sensor prevents deviations caused by air bubbles and suspended solids particulate. The LT-632 is ideal for use in raw water, surface water, storm water, process water and discharged water applications. The LT-632 can be powered by a 24 VDC/6W power supply and offers fully integrated 4-20 mA and RS-485 Modbus output signals for connection to any controller, PLC or DCS network. When clean, the unique Pyxis sensor design offers a stability of 0.1NTU for up to 1-year without calibration. Additionally, the LT-632 can be wirelessly accessed via the optional MACR Bluetooth adapter accessory for local display, diagnostics, cleaning and calibration when using the uPyxis APP for mobile or desktop devices. The LT-632 is ideal for turbidity measurement in raw water, surface water, storm water, process water and discharged water applications. Features Resolution as low as 2 NTU Built-in transmitter, without preamplifier or meter head Combination 4-20mA isolated signal and RS-485 Modbus (RTU) output Simple / Wireless calibration using uPyxis Mobile or Desktop APPs and MA-CR Bluetooth Adapter Supports self-cleaning of sensor lens for dirty water applications Optional calibration with Pyxis Formazine calibration standards or field water samples ¾-inch MNPT Threaded For Fixed Submersion
Specifications Item LT-632 Part Number 532590 Parameter Turbidity Measurement Range 0.00–1,000.00 Unit of Measure NTU (Nephelometric Turbidity Unit) Lower Detection Limit 0.5NTU Precision 2NTU or 2% of the Value Accuracy 2NTU or 3% of the Value Resolution 0.1NTU Response Time T95 12 seconds Calibration Method Field Tested Process Sample or Formazine Calibration Standard Dual Wavelengths Warm White Light 100NTU or Infrared Light 100NTU Method Scattering Power Supply 22–26VDC, 6W Operating Temp. 32–122 ºF (0–50 ºC) Storage Temp. -7–60 ºC (20–140 ºF) Outputs Isolated 4-20mA Analog Output & Isolated RS-485 Modbus Digital Output Installation Submersed Fixed Conduit ¾-inch MPNT Threaded Cable Fitting, Hoisting Chain or Cable Sensor Distance Install From Bottom of Vessel ( 15cm) / From Side of Vessel ( 10cm) Material 316L Stainless Steel Body & Wiper Arm, PTFE Wiper Blade Weight 1,530g (3.3lbs) Operational Pressure 45psi (3.5Bar) Rating IP-68 Fully Dustproof & Waterproof Regulation CE / RoHS Dimension (LxWxH) (254mm x 57mm x 57mm) Cable Length 33 feet (10m) IP-67 8-Pin Adapter , 4.9 feet (1.5m) Flying Lead IP-67 8-Pin adapter Dimensions
Standard Accessories All the following are included in the LT-632 Package (P/N: 532590) (1) LT-632 sensor with bulkhead terminated cable w/8-Pin Female Adapter (33 feet / 10m) (1) MA-1.5CR Flying Lead Cable w/8-Pin Male Adapter/Flying Lead (4.9 feet / 1.5m) The full instrument manual is available for download at www.pyxis-lab.com/shop Calibration Procedure via uPyxis App The LT-632 sensor can be wirelessly accessed via Bluetooth from a mobile or desktop device using the uPyxis Mobile or Desktop Apps and the MA-CR Bluetooth Adapter. The uPyxis Apps feature a live graphical display of the sensor value for turbidity as well as a sensor diagnostics, calibration function and wiper/cleaning iteration customization. After the sensor is properly cleaned it can then be calibrated for zero (clean water) and slope using sample water which has been tested for NTU. Contact service@pyxis-lab.com for support. Fixed Installation with MA-120-C The LT-632 sensor may be installed in a submersible/fixed application using the MA-120-C Submersion Adapter Mounting Bracket. (P/N: 50700A11)
Fixed Installation with MA-120-C Submersible Installation using Lifting Ring & Chain/Cable The LT-632 sensor comes equipped with a lifting ring which allows the sensor to be lifted and lowered using a user provided chain or cable. This method of installation enables rapid retrieval and maintenance of the LT-632. Retention Chain/Cable Sensor Output Cable 3 LT-635 Suspended Solids Sensor 1 2
Order Information Part Number LT-632 Submersible Turbidity Sensor 532590 Optional/Replacement Accessories Information Part Number LT-632 Replacement Wiper Blade 50700-A50 MA-CR Bluetooth Adapter MA-CR MA-NEB USB Bluetooth Adapter MA-NEB UC-50 Micro-Display & Data Logging Terminal 43007 UC-100A Display & Data Logging Terminal 43054 MA-120-C Fixed Submerison Adapter Mounting Bracket 50700-A11 MA-50CR 50ft Extension Cable 50743 MA-100CR 100ft Extension Cable 50744 Pyxis Sensor Cleaning Kit SER-01
Operational Pressure Rating Regulation Dimension (LxWxH) Cable Length 532590 Turbidity .00-1,000.00 NTU (Nephelometric Turbidity Unit) 0.5NTU 2NTU or 2% of the Value 2NTU or 3% of the Value 0.1NTU T95 12 seconds Field Tested Process Sample or Formazine Calibration Standard Warm White Light 100NTU or Infrared Light 100NTU Scattering 22 .
Statistical Analyses - YSI EXO and YSI 6136 Data Slope comparison The following is a summary of final regression analysis for sensor-measured turbidity from a YSI EXO turbidity sensor and a YSI 6136 turbidity sensor at the Kansas Water Science Center laboratory, Lawrence, Kansas, on Febr
See Manual at 320.557 vs. 297.09, 297.272, 322.1.090 1 To 632, Period of Prophethood From Adam to Muḥammad Including 500–632 [formerly 297.09021] For prophetic career of Muḥammad the Prophet, see 297.635 [.090 12–.090 15] To 499 Numbers discontinued; class in 297.0901.090 2 632–1499.090 21 632–1204 500–632 relocated to 297.0901
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i) MicroScan Turbidity Meter (Dade International, Inc.): Zero the instrument with sterile BHI. Vortex the cell suspension and measure in the turbidity meter. Adjust turbidity of culture with sterile BHI to turbidity reading 1.1 1.3. OR ii) Spectrophotometer: Set wavelength to 610 nm, and zero the instrument with BHI.
needed is in the collection and management of turbidity data. The Importance of Turbidity Data Turbidity data is a part of the compliance record for the water treatment plant. Because the SWMOR is a legal document, when it is signed by a licensed operator, the operator is certifying the accuracy of the data in the report.
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