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pH & ORP Sensor for Ammonium Nitrate


This is perhaps one of the toughest and most unique applications in the world that Turtle Tough provide an unrivalled and proven solution.

  • Available as a TOUGH analogue or Smart digital sensor
  • Hot-tap insertion valve retractable assembly (up to 150 psi) or Sanitary assembly and tri clover fitting (up to 100 psi)
  • Acid/Fluoride and Sulphide Resistant
  • 0 to 14 pH Range
  • -5°C to 135°C (-35°C To 150°C optional)
  • Immersible, Submersible if threaded on sealed immersion rod with sufficient sealing tape

Ammonium Nitrate applications involve high temperatures, aggressive mediums and the challenge of maintaining sensors that literally "freeze" with the product the moment they are removed from the process, rendering the sensor useless.

Our retractable pH & ORP Sensor is uniquely designed to interface with our hot-tap insertion valve retractable assembly. For this application, the modified hot-tap assembly includes a cross-flow dual port purge flush assembly allowing the sensor to be flushed with hot water on removal. This allows for safe and clean removal from the process dual-port-purge-flushunder pressure.

Our hot-tap assemblies are a common feature in industries where direct access to the process is required inline or in-tank without interruption to service. The PEEK body plastics provide superior resilience to physical impact and high abrasion, while the high capacity KYNAR reference provides both chemical resistance and temperate resistance to 135°C (optional up to 150°C). Utilising our proprietary toughened glass the sensor is ideal for abrasive media as well as being capable of resisting acids or fluorides that may chemically attack the glass.

Digital Sensor Technology (-D)

This sensor is available with our digital smart sensor technology. This plug and play sensor has a quick connect fitting, eliminating the need for hard wiring to the analyser. Onboard sensor memory allows the storage of calibration data, analyser configurations and sensor service history. This allows the sensor to be conveniently maintained and calibrated off-site or in the laboratory and pre-programmed with calibration data and analyser configurations. This stored information automatically uploads to the analyser upon connection and eliminates the need for any interaction with the analyser, greatly simplifying the change-out of sensors. A service log stored on the sensors is ideal for maintenance and quality assurance records.

  • 6m Cable
  • PEEK with Double O-Ring Front End & 3/4" MNPT Back End
  • Triple Junction
  • Fast Response TC for calibration accuracy
  • Slurry Resistant (High Abrasion)
  • High Capacity KYNAR Reference
  • Proprietary toughened glass
  • Sensor holder and valve retractable assembly sold separately
  • Digital Sensor Technology (-D) (optional)
    • No hard wiring – plug-n-play connectivity
    • Sensor stores calibration data, analyser configuration and sensor history
    • Hot-swap for quick sensor change-out
    • No interaction with analyser – sensor data auto uploads


TurtleTough TT MA RH 

Extreme sensors call for extreme analysers and the Turtle Tough range has been designed with exactly that in mind. Whatever the application, we have a range of Smart analysers and control options to interface with your DSS sensors. Click to view our range...

Interface Hardware

TurtleTough TT MA RH 

We have a range of Digital Smart System accesories to interface, calibrate and communicate with your DSS sensors. Click to view our range...