Conductive-polymer and selectively soluble coating technology
While conductive polymers are used to extend the life of TraceTek cables, the soluable coating on our TraceTek 7000 sensor cable allows it to ignore ordinary water or lightly polluted water and respond only when strong nitric or sulfuric acid makes contact.
Sensor Cables and Probes for Chemical Leak Detection
- The TraceTek 3000 series of chemical leak detection cables is based on the intrinsic conductivity of any water based solution. The presence of dissolved salts or other ionic species makes the leaked fluids even more detectable that ordinary tap water or rain water. TraceTek cables employ conductive polymer coated sensor electrodes spiraled around an inert core of chemically resistant fluoropolymer. The result is a self-supervising cable where every portion of the cable is capable of detecting contact with a conductive liquid. Additional circuitry in the monitoring equipment is capable of determining the point along the cable where the spill has made contact. It is possible to deploy just a few meters of cable for a single small area or thousands of meters of cable sub-divided into multiple independent channels to cover large and complex networks of pipes and tanks.
- The TraceTek 7000 sensor cable offers an additional enhancement of acid specificity. That is, the cable will ignore ordinary water or lightly polluted water and respond only when strong nitric or sulfuric acid makes contact. This means that the cable can be deployed around outdoor tanks, under overhead pipe which might encounter rain, or any similar installation where water is normal and expected yet rapid response to an acid leak is essential. The basis of the technology is a unique and selective acid soluble coating applied to the sensor electrodes. The coating remains intact as an insulating shield keeping the electrodes dry and protected until acids makes contact. The tailored properties of the coating allow it to dissolve rapidly in the presence of the targeted acids and once the protective coating is dissolved, the sensor reports the spill and its location to the monitoring equipment.
Monitors and Alarm Panels
Sensor Interface Modules provide the excitation voltage necessary to operate the cable or probes. The SIM then monitors analog current and voltage levels to determine when and where a leak has occurred. The measurements are digitized and transmitted back to the control and alarm panel for user display or interface to higher level systems.