Diesel fuel is commonly used in various industries to generate and power engines in operation plants. It is normally stored close to where the fuel is used in an appropriately sized tank, based on the practicalities and consumption of the plant.
Accurate measurement and control of diesel tank content is an essential part of operations planning, especially when it comes to maintaining a sufficient supply of diesel fuel. Level monitoring also ensures that there is no leakage in the tank. There are various level sensors and technologies to measure the level of diesel fuel:
The CF3/CF4 is A gauge for level display and filling control. Liquid storage examples:
- Diesel in storage tank or day-tank
- Stored lubricating oil, glycol water, rainwater
It is particularly suited to meet the needs and conditions of use for storage tank or day-tank of diesel generators.
FEATURES
- Tank height from 250 to 3000 mm
- Transmission: angle drive
- Fitting: male 2” BSP
- Head housing: IP 54
- 3 possible functions:
- 1 continuous signal output (Ω)
- Display for direct reading of level. For commodity, the level is visible on 2 opposite sides
- 1 to 3 contacts (potential free)
- Option: on request up to 5 contacts
The electric gauge is mounted above the tank. Against the liquid height, the float transmits the level through an angle drive to a vertical stem. The stem actuates on a pointer associated with a graduated dial to display the level in the tank. Depending on the model, it can also act on contacts, and/ or a potentiometer which will deliver an ohmic value image of measurement.
The JE100 controllers for alarms on low, high levels, and transmitters of continuous level, are designed for indoor or outdoor tanks. Liquid storage examples:
- Diesel
- Lubricating oil
- Glycol water
- Rainwater
They are particularly well adapted to use and needs of storage or day-tank on diesel generators located outdoor.
FEATURES
- Tank height from 1250 to 3000 mm
- Transmission: angle drive
- Fitting: male 2” BSP
- Head housing: IP67
- 2 possible functions:
- With 1 or 2 contacts, potential free
- With continuous resistive signal (Ω)
Under the thrust of the fluid, the float transmits the level through an angle drive to a vertical stem. The stem is then actuating a potentiometer (resistive output) and/or actuates contacts (alarms). The electric gauge is mounted above the tank.
The CF80 Series controllers for alarms on low, high levels, and transmitters of continuous level, are designed for indoor and small tanks.
- Diesel in tanks
- Day-tanks
- Lubricating oil
- Glycol water
- Rainwater
It is particularly suited for small storage tanks (150 to 650 mm high), e.g. on filling automation of tanks for diesel generators.
FEATURES
- Height from 150 to 650 mm
- Fitting: BSP 2”, male
- Head housing: IP54
- 3 possible functions:
- Direct reading of level on top or/ and side of gauge head
- 1 to 3 contacts (2 way contact), high and low levels and/ or pump automation
- Output signal: continuous resistive signal (Ω)
Under the thrust of the fluid, the float transmits the level through a rod transmission to a vertical stem. The stem actuates a pointer on the dial, the contacts or/ and a potentiometer for output resistive signal image of the level. Gauge is mounted on the top of the tank.
The CF30 Series float switch and its variants, are designed to detect a leak from the main tank falling into the retention receiver. It is suitable for diesel, lubricating oil, rainwater and water-glycol mixture.
FEATURES
- For storage tanks of diesel (fuel oils)
- Stem length: from 150 to 2000 mm
- Easy installation
- Output: contact, potential free
- Gauge head housing: IP 54
Against the liquid height, the float lift up a stem actuating a change-over contact. The fitting allows installation on almost any day-tank or retention receiver. The stem length may be modified on request. Several versions are available depending on detection heights and mounting:
CF30 Model:
- The float is mounted vertically to reduce dimensions.
- Distance H: Min. 150 mm
- Distance H: Max. 950 mm
- Detection from 100 mm of liquid as a minimum (depending of H).
CF31 Model:
- The float is mounted horizontally for a detection as soon as possible.
- Distance H: Min. 150 mm
- Distance H: Max. 2000 mm
- Detection from 20 mm of liquid as a minimum (depending of H).
CF32 Model:
- Similar to CF30, but with BSP 2” fitting
The level gauge INTERNIV is dedicated for continuous level measurement of fluids in storage tanks, opened to atmosphere and with a fill height up to 3 m. The gauge is perfectly adapted for monitoring and control of diesel level in storage tanks. The optional display module allows the operator to read instant level and to set up level alarm thresholds.
FEATURES
- For storage tanks of diesel (fuel oils)
- Measuring ranges: Up to 3 m
- Output signal: 4-20 mA, power 8 … 32 V DC
- Compact, robust probe (stainless steel)
- PVC cable compatible with diesel
The gauge INTERNIV 590, is in immersion in the liquid. The hydrostatic pressure is proportional to the depth of immersion. Pressure is measured on the diaphragm, differential with atmospheric pressure is assumed through a capillary tube all along the cable. A built-in amplifier convert the measurement in a 4-20 mA signal.
This amplifier is protected against short circuits and reverse polarity for a safe installation.
PRECAUTIONS
- Installation of gauge INTERNIV 590 is simplest by use of a fitting on tank and/or a junction box BJSC.
- The probe may be freely suspended. It is recommended not to let the probe laying down on the tank bottom to avoid deposits on the diaphragm.
- Junction box BJSC, pressure compensated, hold the gauge (cable is secured) and a vent filter allows the balance with atmospheric pressure. BJSC is highly recommended to protect the gauge cable.
A complete measuring system includes:
- 1 Gauge INTERNIV
- 1 Display module:
- BAMOWIZ: Digital and graphical display (data-sheet 217-01)
- ITU: Versatile indicator (data-sheet 222-04)
- BMG 72: Galvanometric indicator (data-sheet 206-01)
- 1 Tank fitting, and, 1 holder
PILOTREK is a radar level transmitter that provides a contact-free measurement for those substances which create vapors and is convenient as well as for vacuum applications. PILOTREK is an accurate level transmitter of liquids, slurries, emulsions and other chemicals in many fields of application such as: food, energy, pharmaceutical, chemical industries and even in shipbuilding.
FEATURES
- Measuring range: 0.2 to 23 m
- Without contact with the fluid
- 4-20 mA loop power supply
- IP 67 compact housing
- Option: Display/ programming module
The Pilotrek is a radar level transmitter without contact with the liquid, with protected electronic module integrated in the housing. This compact device is powered by the 4-20 mA loop making it reliabile and accurate. Located above the liquid surface, it provides an analogue signal proportional to the level of the liquid. The measurement is not affected by changes of operating temperature and pressure.
Easy settings through only 4 keys. For complete programming, the display module SAP 300 provides access to all parameters.
The radar operates at a frequency of 25 GHz (K band). Compared to radars operating at low frequency (5-12 GHz), the antenna size, the dead zone and the measurement angle are reduced.
- Relative dielectric constant (εr):
The essential condition to operate a radar level measurement is the relative dielectric constant (εr) of the medium which must be greater than 1.9 .
- Maximum measurement distance:
The maximum measurement distance of PILOTREK radars depends on the environment and on the selected device (with or without plastic protection). According to the relative dielectric constant of the liquid and the operating conditions, the maximal measurement distance may decrease.
- Display unit SAP-300:
For easy settings, the SAP-300 display module provides access to all parameters of measurement and output signals. The LCD screen displays the measured values numerically as well as in a bar graph. The function ”Echo Map” helps to detect false reflections and to optimize the measurement settings.
- Display unit MULTICONT:
The MultiCONT manages digital data from several compatible transmitters (up to 15 transmitters).
