FS-4 Petroleum leakage float system, Dinel-Flow Meter

FLOAT SYSTEM FS-4 Dinel
FLOAT SYSTEM FS-4 Dinel

FS-4 Petroleum leakage float system is intended for the detection of leakage of petroleum and petroleum products in trap or protection reservoirs. It consists of two guiding rods and afloat on which the CPS-24Xi-C-RO sensor and NSSU-811 spark resistant assessment unit are installed. The float has been designed so that the sensor face can be submerged under the medium surface. If the sensor face is in contact with water or with the bottom steel prism (when the reservoir is empty), then the sensor is activated. If the sensor face is in contact with petroleum or petroleum products, then the sensor is deactivated, i.e. it is put in an emergency status. The capacitive sensor will be electrically connected to a specially adapted NSSU-811 evaluation unit with a relay output. It is possible to select a unit type with a power supply voltage either 230 V AC or 24 V DC.

Sensor operation

The FS-4 float system can operate in 3 modes (modes 1 and 2 are operational while mode 3 is for testing):

  1. Detection of petroleum or petroleum products in a reservoir which contains no water

    a) The reservoir is dry – there is no liquid under the float
    – the float is lowered on the bottom – the sensor face is in contact with the bottom steel prism and the sensor is activated – closed (LED is on).
    b) The reservoir is flooded with petroleum (emergency)
    – the float is buoyed with petroleum – the sensor face is submerged under the petroleum surface and the sensor is deactivated – open (LED is on).

  2. Detection of petroleum or petroleum products in a reservoir which contains water

    a) The reservoir is flooded with water
    – the float is buoyed with water – the sensor face is submerged underwater surface and the sensor is activated – closed (LED is on).
    b) The reservoir is flooded with water and petroleum is present on the water surface (emergency)
    – the float is buoyed with water – the sensor face is submerged under surface It is separated from water with a layer of petroleum on the water surface. The sensor is deactivated – open (LED is on).

  3. Test of operation

    a) The float rests on the bottom
    – the sensor face is in contact with the bottom steel prism and the sensor is activated – closed (LED is on).
    b) The float is supported by the operator
    – the sensor face is lifted and the sensor is deactivated – open (LED is on).

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Specifications

Range of ambient operational temperatures -20 … +60°C, the float should be protected against freezing
(see Maintenance and operational conditions)
Range of the sensed medium densities 800 … 950 kg/m3
The minimum layer thickness of medium for detection
-on water level 5 mm
-in empty reservoir 25 mm
Cable PUR 3×0.14 mm2
(brown: + pole, white: – pole, green: not used)
Float weight (board + 4 floats + CPS-24Xi sensor) 600 g
Working area With spark resistant power supply unit NSSU-811-230V(24V)-R SP2, complete float system zone 1
Other parameters see the manual for CPS-24Xi sensor
see the manual for NSSU-811 sensor
Materials used
part of the float system material
Float board stainless steel no. 1.4301 (AISI 304)
Floats  PP plastic
Guiding tubes stainless steel no. 1.4301 (AISI 304)
Prism (both bottom and top)  stainless steel no. 1.4301 (AISI 304)

Download Catalog: FLOAT SYSTEM FS-4 Dinel

Ref: Dinel.cz