Types of servo tank gauge

Advanced ServoTank Gauge (ATG)

Designed for measuring all kinds of liquids in any type of storage servo tank gauge, the series 854 ATG Servo Gauge is a reliable, versatile and accurate automatic servo tank gauge with minimal moving parts. The multi-functional instrument is modularly constructed. The option slot for additional features allows the connection of temperature measuring elements for spot and average product temperature, as well as product temperature profiles.

Xmitting Servo Tank Gauge (XTG)

The XTG Servo Gauge is a superior alternative to mechanical float and tape gauges or other low-cost level measuring devices. The standard Honeywell Enraf field-proven two-wire correction of servo tank gauge deformation, roof movement, drum deviation, wire weight and displacer fieldbus is utilized for connection to remote indicators, servo tank gauge inventory systems and host systems.

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BJLM-80H series servo tank gauge

The servo tank gauge is an intelligent tank gauge for high accuracy liquid level measurement. The servo tank gauge can also determine the interfaces between three liquids, specific gravity of these liquids and tank bottom. All calibration and operating functions can be made via the user friendly Matrix program and touch sensitive keypad.

  • Output signals: RS-485, MODBUS, Mark Space and Enraf BPM protocol
  • Suitable for atmospheric & high pressure applications up to 363 psi
  • FM, ATEX & CSA approved for use in hazardous areas
  • NMI approved for custody transfer applications
  • Measures liquid to an accuracy of +/- 0.7 mm

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Servo Tank Gauge with Water and Profiling option

The servo tank gauge is a high accuracy gauge designed for use in custody transfer tank gauging applications. Our servo tank gauge exceeds the requirements of UK weights and measures standards for tank gauges.

Our servo tank gauge is a reliable, versatile and accurate automatic servo tank gauge, the servo tank gauge has been designed for ease of installation with minimal moving parts. The servo gauge tank is designed to measure all kinds of liquid and can be situated either in free space or stillwells. The servo tank gauge can easily be linked to our tank gauging system or to an existing tank monitoring system.

The servo tank gauge include the options to link the gauge to feature like temperature measurement (spot and averagetemperature are available) temerature profiling, full integration to management system, density measurement and much more.

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MT High Accuracy Servo Tank Gauge

Custody Tansfer servo tank gauge with Water and Profiling option and inputs for Temperature Measurement

The servo tank gauge is a high accuracy gauge designed for use in custody transfer tank gauging applications. Our servo tank gauge exceeds the requirements of UK weights and measures standards for tank gauges.

Our servo tank gauge is a reliable, versatile and accurate automatic tank gauge, the servo tank gauge has been designed for ease of installation with minimal moving parts.

The servo tank gauge is designed to measure all kinds of liquid and can be situated either in free space or stillwells. The Servo can easily be linked to our tank gauging system or to an existing tank monitoring system.

The Gauge include the options to link the gauge to feature like temperature measurement (spot and average temperature are available) temerature profiling, full integration to management system, density measurement and much more.

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Servo tank gauge instrument

The intelligent servo tank gauge is designed for high accuracy liquid level measurement in custody transfer and inventory control applications. It fulfills the exact demands of servo tank gauge inventory management and loss control and is optimized in regards of total cost saving and safe operation.

Benefits:

  • Measures two clear interface levels and specific gravity of up to three liquid phases
  • Profiling of Iiquid density throughout the servo tank gauge and upper layer (I/F profile)
  • SIL2 certified alarm output (min., max. and range)
  • Wetted parts are completely separated from the electronic circuit
  • Servo tank gauge top mounting with 3″ flange weighing only 12kg (aluminum version)
  • Wide range of output signals including V1, RS 485 Modbus, WM550, M/S, Enraf BPM and HART protocol
  • Suitable for atmospheric and high pressure applications up to 25bar

Field of application: For measurement of: Oil (crude, light, fuel, edible), LPG/LNG, petrochemicals, chemicals, water /chemical interface measurement, foods, liquid food.

 

Display systems of servo tank gauge

It is essential to simplify and optimise operations of a servo tank gauge farm to improve performance. It is crucial to monitor and supervise different process parameters, such as temperature and servo tank gauge pressure. Displays and Indicators provide a clear view in different formats to help keep a close watch on servo tank gauge status.

Displays and Indicators include various displays and operator panels for static servo tank gauge quantity assessment, enabling access to servo tank gauge data at all times from any place and in various formats. These displays include:

  • The 877 Field Display and Interface Unit (FDI) provides servo tank gauge inventory information in the field and ensures reliable and uninterrupted data supply. It can also double as a Hydrostatic Tank Gauge (HTG) and field data concentrator to measure product temperature, ambient temperature or other variables.
  • The Panel Indicator’s (CPI), designed for use in control room panels, offers a user-friendly operation and brings ease of use and flexibility to the operator.
  • SmartView is easy to configure, provides precise servo tank gauge inventory measurement and is ideal for use in hazardous environments. It is designed to use with the Flexline SmartRadar.
  • Tank Side Indicators (TSI) are digital display units that provide a convenient, safe and time-saving way to read gauging data at ground level.

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Pro Servo Tank Gauge

It is a servo tank gauge that offers optional temperature monitoring. It comes equipped with a 4-20mA transmitter including built in transient protection and electrical noise filtering.

It offers output that is not hampered by agitation, vapor, sludge, foam, product build-up, internal tank structure or floating debris.

This servo tank gauge contains no moving parts, making it suitable for gauging level in municipal water, wastewater, sewage and slurries. It is also suitable for tanks, wells, ponds, rivers, and lift stations.

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Servo tank gauge measurement

Continuous liquid level measurement in custody transfer and inventory control applications

Servo tank gauge instruments offer high precision measurement for liquid level, interface and density applications. The devices fulfill the exact demands of tank inventory management and loss control and are optimized in regards of total cost saving and safe operation. Check out the broad range of Proservo devices for servo take gauge applications and click on the button below.

Servo tank gauge devices as tank gauging instruments are used for custody transfer and inventory control applications with NMi- and PTB-approvals and meet the requirements according to OIML R85 and API 3.1B. Proservo is especially suited for high accuracy custody transfer measurement in crude oil, gasoline, diesel, petrochemicals and chemicals.

Servo tank gauge measurement: Measuring Principle

A small displacer is accurately positioned in a liquid medium using a servo motor. The displacer is then suspended on a measuring wire which is wound onto a finely grooved drum housing. When the displacer is lowered and touches a liquid, the weight of the displacer is reduced by liquid buoyancy force. As a result, torque in the magnetic coupling changes, which is measured by 5 sets of Hall sensors.

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Tank High Accuracy Tank Servo Gauge

The Servo Tank Gauge is an intelligent tank gauge for high accuracy liquid level measurement employing the latest micro-technology. In addition to level measurement, the Servo Tank Gauge can determine the interfaces between three liquids, specific gravity of these liquids and tank bottom. To enable accurate volume calculation or simply for indication, the Servo Tank Gauge will accept an input from the 4532 or 4539 temperature device (via two core cables using HART® protocol) or a single spot temperature element (Pt 100).

Once installed, all calibration and operating functions can be made via the user friendly Matrix program and touch sensitive keypad. Tank side monitoring and operation can be performed by the 4560 Servo Gauge Monitor (SGM).

  • Measures liquid to an accuracy of +/- 0.7 mm
  • Measures two clear interface levels and specific gravity of up to three liquid phases
  • Profiling of liquid density throughout the tank (tank profile) and upper layer (I/F profile)
  • Wetted parts are completely separated from the electronic circuit
  • Tank top mounting with 3” flange weighing only 12 kg (aluminum version)
  • Wide range of output signals, including RS-485 (MODBUS), Mark Space and Enraf BPM protocol
  • Material and pressure rating of the wetted parts can be selected according to the application
  • Suitable for atmospheric and high pressure applications up to 363 psi (2500 kPa, 25 bar)
  • Maintenance prediction of the instrument
  • Direct connection of spot or average temperature probes
  • Built-in calibration window capabilities
  • FM, ATEX & CSA approved for use in hazardous areas
  • NMI approved for custody transfer applications
  • Proactive safety diagnostics output to display and system operators

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Servo Tank Gauge 854 Xmitting Tank Gauge

854 XTG servo tank gauge is a high performance alternative to other tank level measurement technologies, such as radar tank level gauges.

It offers a gauging solution for a large variety of applications up to six bar pressure ratings. XTG servo gauges are TUV certified for Safety integrity level (SIL) 2 and SIL 3 rated safety-instrumented systems. They are suitable for deployment as an independent overfill prevention system conforming to API 2350 and other major safety recommendations.

Servo tank gauges are certified as per OIML R85 2008 and are fully compliant for custody transfer applications. XTG servo tank gauges are multi-function gauges that measures product level, interface level and density measurement. This ensures easy use of servo gauges in existing tank farms with limited opening on tank top.

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