Guihe SYW-E Double layer tank Fuel leak detector, oil and water
leakage detection system for petrol station
Product Introduction
SYW-E leak detection sensor consists of piezoelectric crystal,
oscillating circuit, rectifier circuit and microprocessor etc.
Piezoelectric crystal and oscillating circuit generate square wave
with a certain frequency, and the square wave frequency is the
natural frequency of vibration of piezoelectric crystal, belonging
to the physical property of sensor. When oscillator plate of sensor
gets in touch with liquid, vibration frequency will change
significantly; this frequency change is collected and perceived by
microprocessor inside the shell, and the microprocessor and
peripheral circuit judge that the contact liquid is oil or water
according to the change of frequency, and hereby infer that inner
leakage or outer leakage happens to double-compartment tank. This
sensor is not disturbed by the liquid structure, turbulence,
agitation, vibration and other circumstances, and not limited by
the light, with impact resistance, which can adapt to more complex
scene environment. In addition, compared with leak detection
sensors with other principles, this sensor is featured by stronger
anti-interference ability.
Technical Parameters
| Power Supply | 220VAC |
| Explosion-proof grade | ExiaIIBT4 |
| Alarm method | audible and visual alarm |
| Sensor size | according to the length of the tank |
| Temperature | .-40℃~+70℃ |
| Environment humidity | <85% |
| Accuracy | Accuracy |
| Response time | <2s |
| Pressure range | 80Kpa~110Kpa |
| Output mode | switch output |
| Blind size | DN50/80/100 |
| GH-SLI Console size | 300*180*113mm |
Product Features
Safety: Explosion-proof gradeis ExiaIIBT4 issued by PCEC. The sensor
structure is 304 stainless.
Sensitive: the instrutment detect accuracy <3mm, response time <2s
Stability: frequency variation of piezoelectric transducer belong to physical
attribute, without structure, light and other factors interference.
It can adapt to the complex environment, and with great anti -
interference performance.
Intelligent trouble diagnosis: alarm lamp will flash when anything goes wrong with sensor. Users
can inform factory alarm lamp status so that technicians judge the
faults and repair it.
Intelligent oil/water diagnosis: detecting water and oil between the two layers of double-deck
tank,when there are lakegae between the two layer of tank, the
SYW-E Sensor will detetect it.
Simple Installation:485 protocol bus standard, easy for installation. Can share the
same wirewith level meter.
Reserve switch output port, can realize interlocking control after connect with other
equipments.
Installation dimension of sensor
1. Flange dimension
Blind flange shall be equipped in strict line with “GB/T9123-2010
convex steel pipe blind flange” requirements.
| Nominal diameter | Nominal pressure Mpa | Outer diameter of blind flange (mm) | Center circle diameter of bolt hole (mm) | Bolt hole diameter (mm) |
| DN50 | 1.6 | 165 | 125 | 18 |
| DN80 | 1.6 | 200 | 160 | 18 |
| DN100 | 1.6 | 220 | 180 | 18 |
Using picture
