Select Page

The Pyxis ST-712 series of pH, ORP, and conductivity probes are designed to simplify installation, calibration, and in-use operation in industrial wastewater and cooling water applications.




(pH/ORP sensor with embedded transducers)

These probes have an embedded 4~20mA transmitter. The oversized platinum disk ORP and the flat pH bubble sensing elements increase resistance to contamination. The double salt bridge design with large junction capacity ensures a long sensor life with minimum maintenance.
Manufactured by  Pyxis Lab Inc., USA

  • Industrial wastewater treatment, cooling water treatment
  •   Key Features 
  • Dual embedded transmitters in sensor housing: 4-20mA and RS-485 supporting MODBUS
  • Longer maintenance cycles with high contamination resistance
  • Eliminates the need of pre-amplifier and transfer signal directly in 4~20mA or digital protocol
  • Specially designed pH/ORP electrodes tolerant to short time frozen during shipment or storage
  • Stainless steel solution grounding point on sensor to stay away from ground loop problems
  •   Specifications: ST-710 (pH), ST-711 (ORP),and ST-712 (pH & ORP) 
  • pH: 0 to 14 range with ATC, ± 0.01 pH unit precision
  • ORP: ± 1500 mV range, ± 1 mV precision
  • Response time: 95% within 5 seconds
  • Power supply 12 – 36 VDC, 1W
  • Output: 4 to 20 mA isolated, RS-485 isolated
  • Connector: custom IP67 water proof connector, 1.5 m (4.5 ft)
  • Operation pressure: up to 0.7 MPa (100 PSI) at 65°C (149°F)
  • Installation: custom ¾ inch tee with NPT thread
  • Storage temperature: -20°C to 60°C (-4°F to 140°F)
  • Operational temperature: 0°C to 40°C (32°F to 104°F)
  • Service life: ~2 years
  • Housing material: CPVC
  • Dimensions: 172 mm long, 36.6 mm diameter (6.8 inch long, 1.44 inch diameter)
  • Weight: 170 g (0.37 lbs)
  • Regulation: CE
  •   Specifications: ST-720 (Conductivity) 
  • Conductivity range: 0 μS/cm to 10,000 μS/cm, ± 0.1 μS/cm or 0.2% of the value
  • Sample temperature: 32°F to 104°F
  • Sample pressure: 0 to 100 PSI
  • Power: 12 V to 36 V DC, 1W
  • Storage temperature: -4°F to 140 °F
  • Output: 4 mA to 20 mA
  • RS: 485 Modbus
  • Dimensions: 6.8 inch long, 1.44 inch diameter
  • Installation: Pyxis Tee (ST-001), ¾ inch socket or threaded female union
  • Body material: CPV
  • Others: IP67, CE
  • Large conjunction capacity (compared to replaceable electrode design) leading to longer service life
  • Enhanced robustness when controller is away from sample point

I would like to receive information about A.T.E. and its products from time to time.Privacy Policy

WordPress Tabs Free Version
WordPress Video Lightbox
Contact Us

Contact Form