Oil Leak Detector Apolarm™C(CSH-3005)

Standerd model (CSH-3005)

The Apolarm™C oil leak detector is designed for use at tank yards and other facilities where large amounts of oil are stored, to quickly detect leaks and prevent leaked oil from entering effluent water flows.The Apolarm™C is the leading oil leak detector, with some 30,000 units sold throughout the world.
The CSH-3005 is the culmination of 40 years decades of improvements and modifications based on practical experience in a wide range of commercial settings.

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Oil Leak Detector MicroApolarm™(CSH-1505)

The MicroApolarm™oil leak detector is designed for optimum performance in small indoor or underground drain pits for conduits or channels.
It comprises a floating-body hermetically-sealed capacitance sensor (CSH-1505) and a signal converter(ASH-40)for power supply, signal conversion, and alarm activation. The CSH-1505 sensor circuit applies a high-frequency potential to three electrodes which project downward from the float body.
If an oil layer forms on the water, 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 as a signal current from the sensor circuit via the sensor cable to the ASH-40 signal converter, which then engages the oil leak alarm circuit.

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Salient features
Specifications
System schematic

Salient features

1. Durability and reliability: Oil-resistant, chemical-resistant, weather-resistant float 　　
Operation unimpaired by rough water surface 　　
No false alarms due to dirt and slime on electrodes
2. Low maintenance: No special maintenance required ? only periodic cleaning of float surface
Alarms indicate signaling unit malfunction, cable disconnection, and cable short
3. Versatility and flexibility: Able to detect high-viscosity oils
Optional 50 mm electrodes enable thickness of detectable oil layer to be increased
4. Optimum performance in confined spaces(MicroApolarm™(CSH-1505)): Sure, accurate oil detection by sensor just 150 mm in diameter.
Efficiency and ease of use in indoor and underground channel drain pits.
5. Fail-safe alert(MicroApolarm™(CSH-1505)): System alarm automatically initiated by relay circuit, in the event of power loss at signal converter, cable disconnection, or cable short-circuit.

Specifications

Sensor - Apolarm™CSH-3005

Minimum detectable oil layer thickness	3 to 5 mm
Detection oils	Crude oil, gasoline, diesel fuel, kerosene, heavy fuel oil, lubricating oil, organic solvents, animal and vegetable fats and oils
Housing structure	Watertight, IEC Class IP67 equivalent
Operating temperature	-20 to + 60°C (liquid layers must be free from freezing)
Dimensions	300 mm diam. X 140 mm H
Weight	Approx. 2.6 kg (excluding sensor cable) H
Signal cable(included)	PVC sheathing, two 0.2 mm 2 wires, 12 m length Highly flex-, heat-, and oil-resistant
Max. cable length	Extension up to 2 km maximum (limit under IIC T4 rating)

Sensor - MicroApolarm™CSH-1505

Minimum detectable oil layer thickness	3 to 5 mm
Detection oils	Crude oil, gasoline, diesel fuel, kerosene, heavy fuel oil, lubricating oil, organic solvents, animal and vegetable fats and oils
Housing structure	Watertight, IEC Class IP67 equivalent
Housing material	High impact PVC
Electrode material	SUS 316
Operating temperature	-20 to + 60°C (liquid layers must be free from freezing)
Dimensions	Approx. 150 mm diam. X 60 mm H
Weight	Approx. 170 g
Attached cable	0.2 mm sq. , 2-wire, 12 m
Max. cable length	2 km (limit with IIC T4 rating)

Signal Converter - ASH-40(CSH-3005/CSH-1505)

Relay contacts	Form C configuration for both oil detection signal and system malfunction signal; terminals rated 250 V AC, 4 A
Operating temperature	10 to + 50°C
Power source	100-110 V AC or 200-220 V AC, 50 or 60 Hz
Dimensions (W x H x D)	80 x 120 x 76 mm
Weight	Approx. 0.8 kg

System schematic

Apolarm™C (CSH-3005)

(1)TC-SE Low-water guard	For applications where water level may become too low for the detector unit to float. The adapter grounds the electrodes to prevent false alarms when water is low.
(2)4A-8 Cable float	Installation of cable float recommended to prevent cable tension or entanglement due to rough water surface.
(3)CSH-3005 sensor
(4)Guide bar	For application in a wide space, with high flow, or with rough water surface. Guide bar prevent the sensor from drifting and tilting.
(5)Guide bar supports	Install as appropriate when guide bars are used.
(6)Junction box	Required for attachment of extension cable when the sensor and signal converter are installed more than 12 m apart.
(7)Extension cable	Install as necessary when the signal converter is more than 12 m from the sensor.
(8)ASH-40 signal converter
(9)Signal converter case	Install as necessary to obtain IEC IP66 class ingress protection.
(10)Power and alarm cable	Install as required for specific applications.

*All components optional other than sensor and signal converter.

MicroApolarm™ (CSH-1505)

MicroApolarm™ (CSR-1505)System schematic