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MIELTA Fantom
Description

Wireless Fuel level sensor (FLS) Fantom MIELTA is designed to measure the level of light oil hydrocarbons (diesel, fuel, gasoline, kerosene and etc.) in various purposes containers. Sensor can be installed both on stationary objects and on automobile and railway transport. Sensor uses the linear capacitor capacitance measuring method. The capacitance value depends on sensor immersion level in the dielectric liquid. The sensor is made in a strong plastic case with IP67 protection class, it has a steel flange with holes for mounting. Sensor`s tube and electrode is made of stainless steel and it has oil-resistant dielectric coating. Radio communication antenna is Bluetooth Low Energy (BLE) and the battery is inbuilt.

Specification

Specification

POWER SUPPLY

Battery Li-SOCL2 3.6 V, 2.7 А*h

MEASUREMENT PERIOD

from 1 to 10 sec

THE PERIOD OF SENDING DATA

from 1 to 10 sec

AVERAGING INTERVAL

from 1 to 60

RELATIVE MEASUREMENT ERROR

No more than 1%

DATA TRANSFER FORMAT

0 – Mielta
1 – analog №1

WIRELESS TRANSMITTER

Bluetooth Low Energy 5.0, 2.4 GHz

FREQUENCY RANGE

2400-2483,5 mHz

TRANSMITTER POWER

Adjustable, <11 dBm EIRP

TILT ANGLE MEASURER

Inbuilt accelerometer, +/- 1G α°=arcsin(Z/127)

TEMPERATURE MEASURER

inbuilt, +/-  2°С

INBUILT MEMORY

4 Mb

WIRELESS SOFTWARE UPDATE AND CONFIGURATION

YES

DEGREE OF PROTECTION

IP67

EXPLOSION PROTECTION MARKING

0ExiaIIBT6X

OPERATING TEMPERATURE

from – 40 to +85 °C

OPERATING PERIOD

7 years

THE LENGTH OF THE MEASURING PART

*990 (1490, 1990, 2490, 2990) mm

DIMENSIONS OF HOUSING

80х80х25 mm

DIMENSIONS OF SENSOR

80х80х1015 (1515, 2015, 2515, 3015)
mm

*When mounting sensors with a length of more than 990 mm on moving objects, additional fastening of the sensor tube is required

 

Mielta hereby declares that the type of radio equipment the FANTOM fuel level sensor complies with Directive 2014/53 / EU.

2.1 Power supply

FLS Fantom has a lithium-thionyl chloride battery, a voltage of 3.6 V and a nominal capacity of 2.7 А*h., which is designed for the entire service life in accordance with the manufacturer’s recommendations for setting the frequency of measurement and sending data. After a malfunction, the battery can be replaced in the Mielta production laboratory, for this you need to contact the technical support service.

The sensor detects its position in real time and when it deviates from the vertical by an angle of more than 60 degrees, the power saving mode will be activated. The FLS switches off the measuring device and continues sending the last recorded value, while still being able to connect and configure. Therefore, the sensor can be stored in the warehouse in a horizontal position. In this case, the power consumption is reduced to 30% from the rated one. The sensor operation is guaranteed in the battery voltage range from 3.0V to 3.6V.

2.2 Measurer part

FLS Fantom is equipped with a unique integrated measuring device that converts the capacity of a linear sensor element into a digital value used in fuel level calculations. A essentially different method of measuring capacitance from the competitors allows you to make measurements with high resolution and stability.

It has been implemented a new algorithm for self-diagnosis in emergency. If the measurement range specified during calibration is exceeded with error code, the sensor shows the deviation amount. Analysis of the error value may indicate the cause of the fault: incorrect calibration, changes in fuel quality, or water and dirt is in the fuel.

The sensor is equipped with a modern integrated Bluetooth 5.0 Low Energy radio transmitter and a built-in high-performance antenna, which allows providing high-quality radio communication with minimal power consumption.

The parameters measured by the sensor are transmitted in a BLE standard broadcast packet (chart 2).

CHART 2.

  

Parameter

Valid values

Description

Level

from 0 to 10000

The value of the fuel level.
The range is configurable, by default 30 – 4095

 

2xххх

Error, level is below the minimum, where xxxx is value of the level decrease as a percentage of the operating range

 

3xххх

Error, level is above the maximum, where xxxx is the value of exceeding the level as a percentage of the operating range

 

40000

No Calibration (required a calibration)

Temperature

from -50 to
+100

Temperature of the housing FLS, °С

 

-127

Error, temperature below -50 °С

 

+127

Error, temperature above +100 °С

Battery voltage

from 10 to 40

Battery voltage in volts, multiplied by 10

 

0

Error, voltage is below 1.0 V

 

255

Error, voltage is above 4.0 V

Acceleration along the longitudinal axis of the sensor

from -127 to
+127

The angle of inclination of the sensor relative to the horizontal position is calculated by the formula α°=arcsin(Z/127).
The value of the parameter: 0 – horizontal position;
+127 – vertical position, housing is up;
-127 – vertical position, housing is down;

To monitor and change the sensor settings, its calibration and taring, you must use any mobile device with Bluetooth version 4.2 or later, as well as the program-Configurator for mobile devices Mielta Device Manager (Mielta DM) for the relevant operating system (Android, iOS). The program is available for free in the Google Play and App Store.

2.4 Active protection

Fantom has a built-in sensor that can detect attempts to cover it with any conductive material (metal) in order to destabilize or disrupt data transmission over the radio channel. The sensor will analyze data, will store in memory and will transmit this data into the terminal via a special Protocol.

Even if the user succeeded in blocking radio communication for some time, data on the fact of sabotage will be transmitted immediately as soon as the connection is resumed.