LIQUID HYDROCARBON LEAK DETECTORS
Different technologies in line with your applications and needs
The different liquid hydrocarbon leak detectors :
DOCIL HK detector
DOCIL HK 1H detector : Standard hydrocarbon leak detector
DOCIL HK 2EH detector : Hydrocarbon leak detector with water presence detection
DOCIL HK 2HH detector : Hydrocarbon leak detector using two redundant optical sensors
DOCIL HK 1F detector : Hydrocarbon leak detector when water can reach levels higher than 1 m (storm basin, for example)
DOCIL HK probe
Liquid hydrocarbon leak detectors
The DOCIL HK probe probe operation is based on :
The LARCO optical sensor : DOCIL SENSOR
DOCIL C HK DETECTOR CHARACTERISTICS
Detection :
Detects the hydrocarbons whether or not water is present
Testability :
Very simple test. Simply plunge the float into a bucket of water making sure that the optical sensor is immersed.
Simple wiring :
A single one-pair cable is necessary to connect the detector to the processing cabinet.
Adaptability :
LARCO offers various models of liquid hydrocarbon detectors to suit the various installation conditions (settling tank, retention tank, etc.) and requirements of its customers
PRINCIPLE OF THE DOCIL C HK DETECTOR
The DOCIL C HK detector operation is based on the principle of buoyant force
A DOCIL optical sensor is fixed to a float designed to include the following properties :
- The float density and shape make it sink far more into the hydrocarbon than into water
- This therefore means that no unwanted alarm will be tripped due to the presence of water
- In addition, this guarantees that an alarm will be tripped in the presence of hydrocarbon, whether or not water is present
Standard hydrocarbon leak detector :
DOCIL C HK1H detector
Out of hydrocarbon, the plunger is subject to two forces: A single DOCIL sensor is fixed to the float.
Hydrocarbon leak detector when water can reach levels higher than 1 m (storm basin, for example) :
DOCIL C HK 1F detector
A single sensor is fixed to the float.
Hydrocarbon leak detector with water presence detection :
DOCIL C HK2EH detector
Two optical sensors are fixed to the float.
Hydrocarbon leak detector by 2 redundant optical sensors :
Détecteur DOCIL C HK2HH
Two optical sensors are fixed to the float.
DOCIL sensor - LARCO
The DOCIL sensor comprises a glass cone and an electronic circuit with, among other things, an infrared luminous signal transmitter and a receiver.
The DOCIL sensor works on the optical reflection/refraction principle.
DOCIL sensor characteristics
- Accuracy: 0.1 mm
- Response time: 1 ms
- This sensor is ATEX certified
When the glass cone is not immersed in the liquid, the optical signal is reflected entirely towards the transmitter :
Conversely, when the cone is immersed in a liquid (hydrocarbon), the luminous signal is refracted and the receiver no longer receives the signal, thereby triggering an alarm :
NECESSARY INFORMATION
Characteristics of the product to be detected (origin, density, colour)
Location of the desired detection (pump house, bowl…..)
User site