Oil & Water Leak Detector HD-A2-C

The Model HD-A2-C Leak Detector uses a combination electro-optic technology, which reliably distinguishes between water and oil. The detector contains  an infrared optical liquid detector and a set of stainless steel conductivity rings. Oils are detected by the optical liquid detector and water is detected by both the optical liquid detector and the conductivity rings. 

Ruggedly constructed, with no moving parts, the solid-state HD-A2-C Leak Detector provides reliable and cost-effective performance. The system is suitable for all grades of oil, including No. 6 and gasoline.

Up to six HD-A2-C Leak Detectors can be connected to a single TG-EL-D4ATank Gauge and up to 12 Leak Detectors can be connected to a single TG-EL-D5 Tank Gauge. The detectors monitor for leaks through the inner-wall (oil) or outer-wall (groundwater) of double walled tanks; oil or water leakage into the piping annular space; ground water leakage into a sump. Typical installation areas include:

• Fiberglass or steel tank annular space
• Piping or containment sump
• Vault spaces

Water/Oil Leak Discrimination: Upon the detection of oil or water in a monitored space, the HD-A2-C indicating transmitter will show an oil or water light and send a signal to the TG-EL-D4 A or TG-EL-D5 Tank Gauges.

Continuously Checked: The integrity of the leak monitoring control loop is continuously checked electronically. In normal standby operation, the loop is continuously powered with the light sensor seeing the light from the source. An open or short in the field wiring or failure of the light source or sensor will alert the plant operator by activating the visual/audible leak alarm at the Tank Gauge.

Periodic Manual Testing: Recognizing that the HD-A2-C leak detector may not be required to automatically alarm for years, a magnetic test switch on the HD-A2-C transmitter enables periodic manual testing. By actuating the test switch, without disturbing the installation, the HD-A2-C, connecting wires and the Tank Gauge leak alarm sequence are fully tested. The magnetic switch maintains the 
waterproof barrier.