(Apply to : FRP double-wall tank hydrostatic leak detection)
FRP double-wall tanks are usually filled with monitoring fluid in theinterstice . Normally, the monitoring fluid level should keep in the middle of the reservoir which is on the top of the tank . ACCU 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