ST-772T | Tee-Ready Luminescent Dissolved Oxygen Sensor

Pyxis

$1,985.00
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SKU:
53719
Weight:
1.67 LBS
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Description:

The Pyxis Lab® ST-772T tee-ready optical luminescent dissolved oxygen (DO) sensor is based on the principle of ‘Fluorescence Quenching’ to determine dissolved oxygen content in water. This sensor incorporates Pyxis’ advanced technology in the field of fluorescence detection, using Blue/Red Light Detection technology with excitation and reference light sources to offer a wide detection range and extremely low detection limit. The sensor also integrates temperature and pressure sensors to perform compensation for the measurement of dissolved oxygen based on ambient environmental conditions.

The ST-772T offers an easily replaceable, front loading DO membrane cap that has been independently developed by Pyxis Lab® with a typical service life of up to 2 years. This unique DO membrane cap design incorporates a black microporous PTFE membrane material designed to provide extreme scratch resistance, extended life span and simple replacement. The flat front-end design of the ST-772T makes this platform less prone to contamination or fouling and is very easy to clean.

The sensor body is composed of 304 stainless steel and is well suited for aggressive industrial application use. The ST-772T (304SS) should be utilized in an inline tee or bypass flow installation. The ST-772T series offers both 4-20mA and RS-485 Modbus outputs and is Bluetooth® enabled when used in conjunction with the MA-CR Bluetooth Adapter.

Features:

  • 0.004–20mg/L Measurement Range
  • No Membrane Replacement or Electrolyte Replacement
  • Simple DO Cartridge Replacement every 2 Years
  • Built-In Temperature & Pressure Sensor with Automatic Compensation
  • Accurate and Stable Measurement with Ultra-Low Drift Requiring No Calibration for up to 2 Years
  • Built-In Transmitter without Preamplifier or Meter Head
  • Dual Outputs both 4–20mA Isolated Signal & RS-485 Modbus
  • Wireless Calibration, Diagnostics, Data Trend via uPyxis® app when used with MA-CR Bluetooth® Adapter
  • Slope Calibration with Air or Air Saturated Water / Zero Calibrate with 5% Sulfite Solution or Nitrogen Gas
  • Submersible (ST-772 or ST-772P) or Inline Pipe Tee (ST-772T or ST-772T-P) Installation Versions Available

Typical Applications:

  • Activated Sludge
  • Aeration Basin
  • Nutrient Removal
  • Wastewater
  • Sewage Processing
  • Chemical/Process Water Applications
  • Domestic/Drinking Water Applications
  • Filtration Applications
  • Aquaculture
  • Agriculture
  • Compliant USEPA 40CFR Part 136.3 as an Approved Method for Measurement of Dissolved Oxygen in Wastewater, Drinking Water and Direct Discharge

Specifications:

Item

ST-772T

P/N

53719

Body Material

304SS

Installation Method

ByPass / Inline Installation

Measuring Range (4-20mA Output Scale)

0.004-20mg/L or 0-200% Saturation or 0-500mbarP02

Resolution

0.01mg/L

Accuracy

± 0.1mg / L or ± 1%, whichever is greater

Light Source

Blue Light Irradiated Emission  Red Light Quenching Excitation

Response Time

<60 Seconds

Operational Temperature

0 °C – 45 °C (32 - 113° F)

Operating Voltage

22 – 26V DC, Power 0.6W

Signal Output

4-20mA analog output / RS-485 digital output

Dimension (L x D)

296 x33.6 mm (11.65x 1.32 inches)

Weight

760 g (1.67 lb) cable excluded

Working Pressure

145 psi

Wet Material

304SS/Polycarb

Cables Provided

4.9ft/1.5m Flying Lead Cable – 8Pin

4.9ft/1.5m Bulkhead Cable – 8Pin

Calibration

Slope calibration Air or Air Saturated Water

Zero calibration: 5% Sodium Sulfite or Nitrogen Gas

DO Membrane Cap Life

2 years

Protection Grade

IP-67/IP-68

Regulation

CE / RoHS

Compliance

USEPA 40CFR Part 136.3