The TT-Fert-pH sensor for fertiliser production has been specifically designed for this process to resist the strong etching effects of this production process. The addition of hydro fluorosilicic acid creates a toxic environment for sensors and effective cleaning of the sensors requires the use of strong acid; otherwise sensor coatings and build-ups quickly prevail. By utilising our unique High HF resistant glass we are able to achieve exceptional life, while making a sensor that is easy to clean (and keep clean) by utilising a harsh cleaning regime that you would not dare use with an ordinary pH sensor. The RYTON body plastics combined with our advanced high capacity KYNAR reference are design for chemical resistance, including sulphides. The 1” twist lock MNPT threaded connections allow for both immersion and submersion. With appropriate sealing onto an immersion rod, the sensor may also be fully submersed without the requirement of additional sealing. Both body plastics and advanced reference system give this sensor an excellent operating range up to 105°C. This sensor is ideal for any applications where process media containing free sulphide species such as hydrogen sulphide gas (H2S), hydrogen sulphide (HS-) or sulphide ions (S2-). Any measurement where aggressive chemical cleaning is needed to remove fouling or low maintenance operation is required with minimal cleaning and recalibration. Digital Smart Sensor Technology (DSST) 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. On-board 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.