Ultrasonic leak detector for tank tightness testing SDT International
Ultrasonic system SDT 170 MTT
Tightness control of underground tanks and associated pipe work
Widely recognized and approved method. The SDT TankTEST method by introducing a vacuum and listening to the ultrasounds is the most reliable, most cost-effective, most rapid, most simple, most comprehensive and the most accurate.
With SDT's Graphs & Measurements software for the automatic creation of authenticated reports. All data and test measurements are stored in the detector. They can be transferred to a PC. They provide evidence of testing, measurement readings and graphics
and archiving of the performances.
Control principle
- The use of ultrasonic frequencies means a far higher level of sensitivity than is possible with audible sound.
- The pressure in the tank is reduced, and the ultrasonic vibrations caused by the passage of water, air or other substances through a hole in the tank wall are detected by two sensitive sensors, one in the liquid and the other above the level of the liquid.
- The SDT 170 MTT detects the typical frequencies of leaks in underground tanks. It measures them and converts them to audible frequencies. These are fed back in three forms: visually and measured in dBµV on the detector display, and audibly through his headphones.
