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What is a Flow Meter?

A flow meter (or flow sensor) is an instrument used to measure linear, nonlinear, mass or volumetric flow rate of a liquid or a gas. When choosing flowmeters, one should consider such intangible factors as familiarity of plant personnel, their experience with calibration and maintenance, spare parts availability, and mean time between failure history, etc., at the particular plant site. It is also recommended that the cost of the installation be computed only after taking these steps.

One of the most common flow measurement mistakes is the reversal of this sequence: instead of selecting a sensor which will perform properly, an attempt is made to justify the use of a device because it is less expensive. Those “inexpensive” purchases can be the most costly installations. This page will help you better understand flow meters.

Established in 1999, located at BDA Beijing, JOYO M&C is a high-tech company focusing on R&D and manufacturing of measurement and control instruments and integrated automation systems equipment for oil terminals, tank farms, refineries and petrochemical complexes.

 

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About multi-point thermometer

The multi-point thermometer adopts a bimetal thermometer, thermocouple or thermal resistance integrated temperature transmission method, which not only meets the needs of on-site temperature measurement, but also meets the needs of long-distance transmission. It can directly measure -80- + 500 ℃ in various production processes Temperature measurement of liquid, vapor and gas medium and solid surface within the scope.

Uses: used to measure various temperature objects, the measurement range is extremely large, much larger than alcohol, mercury thermometer. It is suitable for high temperature areas such as steel making furnaces and coke ovens, and can also measure low temperature objects such as liquid hydrogen and liquid nitrogen.
Multi-point thermocouple thermometer is composed of multiple thermocouples, junction box and millivolt thermometer, additional cables and compensation thermocouples, etc. It is mainly used to measure the cylinders and total exhaust of diesel engines or other large diesel engines on ships The temperature of the tube.
1) The total error of the millivolt refers to the total error of the thermometer (divided error and error affected by the change of ambient temperature) should not exceed ± (1.5 + 0.08 | t |)% of the upper reading limit when the ambient temperature is 0— + 60 ℃.
2) Basic error of complete thermometer: ± 2.5%
3) Dimensions: millivoltmeter: 294 × 210 × 127㎜ junction box: 263 × 107 × 92㎜
4) Basic error of millivolt thermometer: ± 1.5%
5) Weight: WRF-11C millivolt thermometer 3.5㎏ WRF-22C millivolt thermometer 4㎏ junction box 3.2㎏
6) Basic error of thermocouple: accord with JJG351-96
7) External resistance of millivolt thermometer: 10 ± 0.1Ω. (Including thermocouple, compensation wire, compensation thermocouple, cable and balance resistance).

Established in 1999, located at BDA Beijing, JOYO M&C is a high-tech company focusing on R&D and manufacturing of measurement and control instruments and integrated automation systems equipment for oil terminals, tank farms, refineries and petrochemical complexes.

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Improved Tank Gauging Topology

Fiber Ethernet Tank Farm Topology

The major cost in any tank gauging or tank farm automation project is the field wiring. Normally two-thirds (2/3) of the cost is for wire, conduit, electrical fittings, etc. The upgrade of older technology in the field is often delayed because of the capital needed to replace the communications infrastructure. This means the benefits are also delayed and costs you more money.

An ideal communications Topology would be designed to:

Reduce the cost of cabling vs. conventional wire
Increase the reliability and data throughput speed
Provide electrical isolation to field devices (against power surges and electrical storms)
Maintenance ease by using off the shelf components
Reduce system integration costs (electrical standards, protocols, communication devices, and software drivers)
Provide access to multiple users, i.e., Operations, Laboratory, Scheduling, Oil Movements, Engineering, Maintenance, Safety, Environmental, Marketing, Accounting, Management, and Corporate. On a local basis or an Enterprise solution (from/to anywhere via Intranet VPN)

From the Master Switch, fiber cable is run to field mounted industrial quality Smart Switches, thus establishing a Fiber Ethernet network. Depending upon the Smart Switch selected, one particular Master Switch can be cabled in a ring, i.e., a primary cable run with a return loop to the Master Switch.

The Master Switch sends a packet out over the primary fiber cable and awaits the receipt of the packet. If the packet is not returned, the Master Switch assumes that there is a fiber cable or switch problem. On the next communication, the packet is transmitted in both directions over the primary fiber cable and the return loop fiber cable. Diagnostics can then identify the location of the problem, i.e., device or fiber cable, as well as restore communication with all working network components.

The field installed Smart Switches then communicate to Ethernet devices (GSI CIM, E/RTU, NET/IFI, E/IFI, or E/TGI) or Ethernet ready Tank Gauges (MTG, CAP3, 2000/APTB).

It has installed systems using the Fiber Ethernet Topology since 1996. It is a field proven topology that reduces overall maintenance costs, and increases data throughput and speed. It allows communication for configuration and remote preventative maintenance with intelligent field devices.

FROM:Gauging Systems Inc.

 

Multifunctional Tank Gauge BJLM-80HA is designed for ambient and high pressure liquid tank gauge measurements. It has multiple functions measurements integrated in one gauge,  including measurement of level, density, temperature, water interface, and automatic calculation of volume and mass by temperature compensation for the liquid in the tank.

 

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Digital Density Meters

Compared to Pycnometers and Hydrometers
Digital density
Manual methods are being replaced by digital density meters for many critical reasons. Even though digital density meters are more expensive, it is a necessary investment.

This comparison datasheet gives a description, applications, and advantages and disadvantages for the following instruments:

Pycnometer
Hydrometer
Benchtop digital density meter
Handheld digital density meter

Manual methods for density measurements: Manual methods like pycnometers and hydrometers are widely used for the determination of density and related values, e.g. specific gravity, alcohol%, BRIX°, API degrees, Baumé, Plato, etc. Although these methods are easy to use and quite inexpensive, they require expertise in every step of the manual operation protocols, which often affects the accuracy and reliability of the results. Most often, different operators will obtain different results for the same sample.

Digital methods for automatic density measurement: Digital density meters use the oscillation tube technology to measure very accurately the density of a sample in a short time. In addition, benchtop digital density meters use a built-in Peltier thermostat to control the temperature of the sample. The measurement is started by pressing a key, after a short time the result appears on the screen and can be printed, sent to a computer or exported to LIMS.

FROM: METTLER TOLEDO

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Advantages of Tank gauge with density temperature mass measurement

Tank gauge with density temperature mass measurement have their advantages: They measure rate changes, can be viewed from long distances, and do not require power. But if accuracy is vital when measuring pressure, industrial analog tank gauge with density temperature mass measurement simply cannot compare to how precisely tank gauge with density temperature mass measurement measure pressure. Tank gauge with density temperature mass measurement offer many other advantages as well.

Advantages of tank gauge with density temperature mass measurement

Many applications for tank gauge with density temperature mass measurement require that they be used in temporary installations. Tank gauge with density temperature mass measurement, like the DG-10 digital pressure gauge, are suitable for a wide range of applications and industries, including mechanical engineering, hydraulics/pneumatics, pumps/compressors, and general service/test operations.

Since they may be transported around in the intervening periods during application, tank gauge with density temperature mass measurement feature a stainless steel case, well-designed battery housing, and robust electronics to ensure the longevity of the gauges and subsequent accuracy of readings. An optional rubber cover is available for additional protection for the DG-10.

The readings that tank gauge with density temperature mass measurement offer on digital displays are as fast as they are precise. When a local digital display is required, a digital pressure gauge, like the DG-10, is the ideal solution. They take the manual work out of calculating pressure by reading international measurement units including bar, psi, and MPa. The multi-function display also features a bar graph with a drag pointer and a MIN/MAX memory feature which can recall minimum and maximum pressure readings.

This article comes from wika edit released

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Tank Terminal Automation System Solution

Tank terminal automation systems find applications primarily in Trucks /Wagon fuel loading. Fuels include Motor Spirit (MS), Diesel, Aviation Turbine Fuel (ATF), Naphtha, Superior Kerosene Oil (SKO), Furnace Oil, (Diesel High Pour Point) DHPP, Liquefied Petroleum Gas (LPG), Chemicals.

The Flowmeters used are generally PD Meters or Coriolis Mass Flowmeters. The Batch Controllers supplied conform to OIML R117 capable of simultaneous Additive Injection and Ethanol Blending with Ratio Control and Our AMC includes hassle-free service at all times leading to enhanced performance and higher productivity.

Tank terminal automation with primary secondary radar gauges and overspill relay are SIL2, approved withsoftware integrated to TAS.

Security Surveillance

We deliver solutions for security surveillance, CCTV, Access Control systems for public utilities, oil depots and terminals.

This article comes from chemtrols edit released

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TLS Automatic Tank Gauge

We provide one-of-a-kind automatic tank gauges with the highest advanced fuel monitoring technology to well over 500,000 tanks worldwide and continuously growing. As you will see, we offer a variety of automatic tank gauge consoles to fit your need.

The automatic tank gauge optimizes automatic tank gauging due to its ability to manage inventory automatically. It adds two key components: the ability to automatically manage inventory (BIR) and AccuChart – as standard features. The automatic tank gauge manages your wet stock more efficiently to ensure excellent timing, avoiding environmental issues and quality controls.

Key benefits of this product include: optimal risk management and environmental protection for the whole forecourt, variance analysis, business inventory reconciliation, in-tank leak detection and more. Request a quote today.

This article comes from mecoatlanta edit released

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What is Automatic Tank Gauge?

Definition – What does Automatic Tank Gauge mean?

An Automatic Tank Gauge is a device that automatically measures the level of crude oil, LNG and petroleum products in storage tanks and raises an alarm when the level goes down or up the threshold limits. It operates electronically and keeping track of any leakages in the tank. When the upper limit of re-filling the tank is reached, it cuts off the supply from the inlet pipeline and intimates the operator on their human machine interface.

Petropedia explains Automatic Tank Gauge

Automatic tank gauge (ATG) systems measure the levels of liquids inside tanks with the help of electronic probes. These probes consist of long rods that house certain number of sensors known as floats. The position of the floats informs the operator sitting at the ATG console about the amount of petroleum product present in the tank. Apart from measuring the petroleum levels, the probe rod also houses thermistors that measure the liquid temperature.

An ATG console machine is connected electronically with all the storage tanks located inside the main facility and displays all the internal views of a storage tank to the operator sitting at the console.

This article comes from petropedia edit released

 

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About Tank Gauging System

Improve Terminal Operations with High Performance Bulk Liquid Measurements

Reduce uncertainty in oil inventory and transfers:

• Receive real-time tank data for accurate net volume calculations.
• Get certified custody transfer accuracy.
• Utilize tank capacity efficiently.

Improve safety:

• Comply with overfill prevention standards such as API 2350.
• Use SIL 2 and SIL 3 certified devices.

Simplify installation and terminal operations:

• Benefit from unique 2-in-1 technology.
• Simplify automation and expansion with Smart Wireless.
• Use gauge emulation to replace old mechanical gauges.

How the tank gauging system works

The tank gauging system monitors inventory, so you know the exact amount of stored products. The tank gauging system measures precise batches and custody transfers between ship and shore as well as in pipeline transmissions. Use the tank gauging system for everyday operations, oil movement, scheduling purposes and blending programs. Keep accurate track of leaks and prevent overfills to reduce environmental impact and the financial consequences of oil losses.

This article comes from emerson edit released

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What Is The Servo Tank Gauge

The servo tank gauge is equipped with a patented Servo Auto Test feature that increases its safety integrity as well as diagnostic coverage, allowing it to be used in overfill protection loops to prevent spillage. The servo tank gauge has a Safe Failure Fraction (SFF) of more than 90% which allows it to be used in SIL-2 safety loops.

If used in a redundant configuration, the servo tank gauge can also be used in SIL-3 rated loops. With these diagnostics, the safety proof-test interval can be extended to 5 years, significantly bringing down the operational cost compared to other solutions that require a proof test to be carried out every year. A highly accurate and advanced force transducer, microprocessor control and advanced software give users precise, reliable measurement and control.

Installation is easy. Almost any nozzle 2” and up can be used, even with the tank being in service. To simplify startup, calibration and servicing, the portable tool can be used to bypass the central system.

This article comes from honeywellprocess edit released