(Apply to : FRP double-wall tank hydrostatic leak detection)
FRP double-wall tanks are usually filled with monitoring fluid in the interstice. Normally, the monitoring fluid level should keep in the middle of the reservoir which is on the top of the tank. OKet® provides HLS-1D dual-point hydrostatic sensor which can accurately detect fluid-level changes in reservoir in high or low level change. If the brine solution seeps into the tank, lowering the level in the reservoir, the sensor triggers a low-level alarm. If an outer wall leak occurs and groundwater seeps into the tank, a high alarm is activated .
●Distinguish the leakage position (inner wall or outer wall)
●Inner wall leaks, low level alarm
●Outer wall leaks, if the groundwater level is high, high level alarm; if the groundwater level is low, low level alarm