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CSR-3005

Article: 00074232

Oil leak detector / float

The oil leak detection system comprises a hermetically sealed floating-body sensor (CSR-3005) and an intrinsically safe signal converter (AS-40) for power supply, signal conversion, and alarm activation. The CSR-3005 sensor circuit applies a highfrequency potential to three electrodes which project downward from the float into the water below. If an oil layer forms on the water surface, and the electrodes thus project into oil rather than water, it effectively lowers the capacitance between the electrodes and ground. This change is detected, amplified, and conveyed from the sensor circuit as a signal current via the sensor cable to the signal converter, which then engages the oil leak alarm circuit.



Inherent operational reliability
- Asymmetric float conformation at waterline, for stable function and operation.
- Signal converter delay circuit, to prevent false alarms due to transient loss of contact with water surface.
- Lower-body conformation and electrode positioning designed to prevent short-circuiting by sludge or slime deposits (Fig.1).
- Electrodes designed to prevent false alarms due to grease or grime adhesion (Fig.2)
Capability for detection of high-viscosity oils (Fig.3).
Minimum detectable oil-layer thickness 3?5 mm; up to 50 mm with optional electrodes.
Display lamp on sensor body, for visual on-site check of operational status.
Sensor body composed of oil-, chemical-, and weather-resistant self-extinguishing plastic.
System alarm automatically engaged by relay circuit, in the event of power loss at signal converter,
cable disconnection, or cable short-circuit.

Specifications

  • Detected fluid / gas: oil
  • Technology: float

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