Pyxis

Pyxis ST-765SS Series Oxidizer + pH Sensors

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SKU: 5964x
Weight: 1.16 LBS
Shipping: Calculated at Checkout
$1,750.00 - $2,250.00
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The ST-765SS Series are stainless steel multi-parameter membrane-less sensors based on unique electrochemical principles to determine free chlorine or chlorine dioxide and pH content in water. These sensors incorporate Pyxis Lab® advanced technology in the field of bare-gold electrochemical detection. The ST-765SS-FLC sensor integrates Free Chlorine, plus pH measurement while the ST-765SS-CLO integrates Chlorine Dioxide plus pH measurement. Both can perform temperature and pH compensation for the measurement of Free Chlorine or Chlorine Dioxide based on the conditions present in the application of use. This unique internal compensation results in a highly accurate oxidizer measurement consistent with DPD wet chemistry methodology as high as a pH of 9.0 and is compliant with USEPA-334.0 & ISO-7393 guidelines.

The ST-765SS Series sensors offer a replaceable, front-loading reference electrode assembly that has been independently developed by Pyxis Lab®, eliminating the shortcomings associated with membranes and gel replacement while offering reduced polarization time on startup, offering an electrode life span potential of up to 2 years. The flat front-end design of the ST-765SSS series makes this platform less prone to contamination or fouling and is easy to clean. The ST-765SS Series sensor body is composed of 304 Stainless Steel and is well suited for aggressive environments.

Details

The ST-765SS Series offer (2) 4-20mA and RS-485 Modbus outputs and is Bluetooth® 5.0 enabled when used with the MA-CR Bluetooth® adapter. The world’s first four-electrode composite sensor that provides three measured parameters including Free Chlorine or Chlorine Dioxide, pH and Temperature with one sensor RS-485 Modbus output. The ST-765SS is the best choice for potable water, secondary water supply, domestic water, decorative water and other clean water applications.

Features

  • Real-Time pH + Oxidizer (0-5ppm) Detection
  • Dual 4-20mA Outputs (Oxidizer+ pH) and RS-485
  • Bluetooth® Enabled when used with MA-CR Adapter Wireless for uPyxis Calibration
  • Integrated RTD & pH Compensation to pH 9.0 of the Oxidizer Value
  • Replaceable EH-765 Reference Electrode Assemble for Simple Maintenance

Specifications

ST-765SS-Br Bromine + pH Multiparameter Sensor

 

Item ST-765SS-Br
Part Number 59643
Sensor Body Material 304SS
Oxidizer Range 0.00-5.00 ppm Bromine
Oxidizer Precision ± 0.01mg/L or 1% of the value w/pH compensation up to 9.0+
pH Range 0-14
pH Precision ±0.01 pH
Sample Inlet Pressure 7.25-30psi (0.05-0.2MPa)
Installation FR-300-PLUS Magnetic Coupling Brushing Flow Reservoir
FR-300-PLUS Suggested Flow Rate 200 – 800 mL/minute
FR-300-PLUS Sample Inlet /Outlet 3/8 - inch OD
FR-300-PLUS Operation 24VDC/2.5W Powered Constant ON Mode for Relay Control and RS-485
FR-300-PLUS Rotational Speed 200 RPM – Motorized Brush Preset for Constant Operation
Sensor Power Supply 22 – 26VDC, Power Consumption 2W
Storage Temperature -7 °C – 60 °C (20 – 140 °F)
Outputs Dual Isolated 4 – 20 mA Analog Outputs + Isolated RS-485 Digital Output
Dimension (L x D) Length 8.3 inch (210.8 mm), body diameter 1.4 Inch (35.6 mm)
Weight 530 g (1.16lbs)
Maximum Sensor Pressure 100 psi (6.9 Bar) – Sensor Only
Operating Temperature 4 °C – 49 °C (40 – 120 °F)
Wet Material UPVC
Rating IP67, Fully Dustproof & Waterproof
Selectivity Non-Selective / Cross Sensitive to other Oxidizing Species
Compliance EPA 334.0 / ISO 7393
Regulation CE Marked / RoHS
Cables Included MA-4.9CR Cable (8Pin Adapters – 1.5m)
MA-1.5CR Cable (8 Pin Adapter / Flying Leads – 1.5m)
Typical Electrode Service Life 2 Years
Electrode Warranty 6 Months
Sensor Body Warranty 13 Months

 

ST-765SS-DCL (Free Chlorine + Sulfite) Multiparameter Sensor

 

Item ST-765SS-DCL
Part Number 58444
Sensor Body Material 304SS
Free Chlorine Range 0.00-5.00 ppm
Free Chlorine Precision ± 0.01mg/L or 1% of the value w/pH compensation up to 9.0
Sulfite Range 0.00-100.00 ppm (auto-range)
Sulfite Precision ± 1.0mg/L or 1% of the value w/pH compensation up to 9.0+
pH Range 0-14
pH Precision ±0.01 pH
Sensor Power Supply 22 – 26VDC, Power Consumption 2W
Storage Temperature -7 °C – 60 °C (20 – 140 °F)
Outputs Dual Isolated 4 – 20 mA Analog Outputs + Isolated RS-485 Digital Output
Dimension (L x D) Length 8.3 inch (210.8 mm), body diameter 1.4 Inch (35.6 mm)
Weight 530 g (1.16lbs)
Maximum Sensor Pressure 100 psi (6.9 Bar) – Sensor Only
Operating Temperature 4 °C – 49 °C (40 – 120 °F)
Wet Material UPVC
Rating IP67, Fully Dustproof & Waterproof
Selectivity Non-Selective / Cross Sensitive to other Oxidizing Species
Compliance EPA 334.0 / ISO 7393
Regulation CE Marked / RoHS
Cables Included MA-4.9CR Cable (8Pin Adapters – 1.5m)
MA-1.5CR Cable (8 Pin Adapter / Flying Leads – 1.5m)
Typical Electrode Service Life 2 Years
Electrode Warranty 6 Months
Sensor Body Warranty 13 Months

 

Downloads

ST-765SS-Br Series Sensors User Manual V1.3

ST-765SS-DCL User Manual V1.07

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