Instrumen Pengukuran Level

Pengukur Tingkat Pemindahan

The Displacer Level Gauge is a high-precision liquid level measurement instrument designed for industrial applications. Using the displacement principle, it accurately measures liquid levels in tanks, vessels, and process systems. Ideal for chemical, oil & gas, and pharmaceutical industries, this gauge ensures reliable and continuous monitoring even under high temperature, high pressure, and corrosive conditions. Available in stainless steel, explosion-proof, and OEM/ODM configurations, it offers flexibility for diverse industrial environments.

  Deskripsi Alat Ukur Level Deskripsi  

Displacer Level Gauge-Features

  • Robust and Reliable Design: Simple structure ensures stable performance and minimal maintenance requirements.

  • Safe and Isolated Indicator: The liquid level indicator is fully separated from the measured medium, providing safe and reliable operation.

  • Wide Pressure Range: Operates under working pressures from -0.1 to 42 MPa, suitable for most industrial processes.

  • Extreme Temperature Capability: Works in temperatures from -60°C to +400°C, supporting high-temperature applications.

  • Accurate Measurement: Includes medium density correction and temperature compensation for precise level readings.

  • High Viscosity Compatibility: Capable of measuring liquids with viscosity up to 500 mPa·s.

  • Multiple Indicator Options: Available with M2 and M3 indicators for on-site display preferences.

  • Flexible Signal Outputs: Supports 4-20mA two-wire signals, switch outputs, and HART protocol, ideal for remote monitoring and process integration.

This image shows a displacement type level gauge with a stainless steel float and analog dial display, suitable for liquid level monitoring.
This image shows a displacer type level gauge with a digital display and stainless steel displacer, commonly used for measuring liquid and interface levels.

Displacement Level Gauge-Applications

The Displacer Level Gauge is designed for continuous liquid level and interface measurement in demanding industrial environments. As a factory-manufactured instrument, it is engineered to deliver stable and accurate performance under high temperature, high pressure, corrosive, and hazardous conditions.

It is widely applied in the following industries:

  • Oil & Gas Industry
    Used for level and interface measurement in crude oil tanks, separators, and storage vessels, especially suitable for high-pressure and explosion-risk areas.

  • Pengolahan Kimia
    Ideal for measuring corrosive and toxic liquids in reactors, columns, and storage tanks, ensuring safe and reliable process control.

  • Pembangkit Listrik
    Commonly installed in boilers, feedwater systems, and condensate tanks for continuous liquid level monitoring.

  • Pharmaceutical Industry
    Provides stable and hygienic level measurement in process vessels where accuracy and reliability are critical.

  • Food & Beverage Processing
    Suitable for liquid level control in production and storage tanks, supporting consistent process operation.

  • Paper & Pulp Industry
    Used for monitoring liquid levels in pulp processing and chemical dosing systems.

With a full metal structure, isolated indicator design, and multiple signal output options, the displacer level gauge is well suited for process control systems requiring long-term stability and low maintenance, making it a reliable choice for industrial liquid level measurement.

Buoyancy Level Gauge-Working Principle

The electric displacer level gauge measures liquid levels using the buoyancy principle combined with Hooke’s law. The displacer, suspended on a spring, responds to changes in liquid level: as the level rises or falls, the balance of buoyancy, gravity, and spring force shifts. This movement is transmitted through a magnetic coupling to an external indicator, providing a clear and accurate on-site reading.

Designed with a robust full-metal construction, the gauge keeps the indicator fully isolated from the measured medium, ensuring durability even in corrosive or high-temperature environments. It also offers flexible output options, including 4-20mA two-wire signals, switch outputs, and HART protocol, making it ideal for remote monitoring and seamless integration into industrial control systems.

This image shows a schematic diagram of the internal structure of a displacement level gauge, highlighting the positions of various components such as the sensor, amplifier, torque tube, and transmission lever.
This image shows a buoyancy float level gauge with a stainless steel float and digital display, commonly used for liquid level monitoring.

Displacement Float Level Gauge-Indicator Function

M2 Indicator
The M2 is a square-type indicator. The vertical displacement of the displacer is transmitted through magnetic coupling and displayed on the pointer and dial, providing precise on-site liquid level readings.

M3 Explosion-Proof Indicator
The M3 is a prototype-type indicator designed for explosion-proof and intrinsically safe environments. It converts the displacer’s vertical movement into a readable value via magnetic coupling, displayed on the pointer and dial.

  • Explosion-Proof Rating: ExdⅡCT6Gb

  • Intrinsically Safe Rating: ExiallCT6Ga

The M3 indicator is ideal for hazardous areas, ensuring safe, accurate, and reliable level measurement in demanding industrial applications.

  Parameter Alat Ukur Level Parameter  

Measuring Range300-6000 mm (or according to user requirements)
Measurement Accuracy1.5, 2.0
Buoy Material304, 316L, HC, Ti, etc.(Other special materials are negotiated for supply)
Medium Density≥0.45g / cm3
Interface MeasurementThe difference between the density of the two media is ≥0.1 g / cm3
Medium Temperature≤80 ℃, ≤150 ℃, ≤250 ℃, ≤400 ℃
Medium Pressurestandard type ≤4.0 MPa, pressure type ≤42MPa
Pressure Levelstandard type: DN40-DN50 / PN4.0Mpa;DN80-DN100 / PN1.6MPa
High Pressure TypeDN40-DN50 / PN10.0MPa
Special Typeaccording to user requirements
Flange StandardsHG20592, DIN2501, ANSI, SH, GB (or according to user requirements)
Process Connectionflange DN50, G1.5 ”thread or according to user requirements
Output Signal4 ~ 20mADC (two-wire system)
Load Resistance500Ω (when 24VDC power supply)
Communication OutputHART, Modbus (RS485)
Alarm Outputupper and lower limit switch output
Contact Capacityup to 400VAC 0.05A, 24VDC 0.2A
Working Power15-35VDC, 220VAC
Lithium Battery3.6V7.5HA, 220VAC
Ambient temperature-20 ℃ ~ + 60 ℃
Body Material304, 316L or user requirements
Display Case Materialstandard type: cast aluminum, special type: 304, 316L
Protection LevelIP65 (IP68 negotiated supply)

  Instrava OEM / ODM

Displacer Level Gauge – ODM / OEM Solutions

We offer customized Displacer Level Gauges tailored to your specific process requirements. Our ODM and OEM services allow you to select:

  • Measurement range and accuracy to match your tank or vessel specifications

  • Materials including stainless steel, corrosion-resistant alloys, and high-temperature variants

  • Indicator types (M2, M3, explosion-proof or intrinsically safe)

  • Signal outputs such as 4-20mA, switch outputs, and HART protocol

With years of experience in industrial liquid level measurement, we ensure that every gauge is precisely engineered, tested, and ready for seamless integration into your process control systems.

Benefits of Our ODM/OEM Services:

  • Fully customizable to meet unique industrial requirements

  • Supports harsh and hazardous environments

  • Ensures reliable performance and long service life

  • Fast prototyping and flexible production volumes

Partner with us for professional Displacer Level Gauge customization and get a solution that perfectly fits your chemical, petroleum, power, or pharmaceutical processes.

melambangkan kepercayaan dan awal dari kemitraan jangka panjang

  Rekomendasi Produk Terkait  

The gauge operates on the buoyancy principle and Hooke’s law. The displacer’s movement in the liquid is transmitted through magnetic coupling to the external indicator, providing precise and reliable level readings.

Yes, with stainless steel or alloy construction, the gauge can operate in high-temperature liquids up to 400°C and handle corrosive chemicals, ensuring safe and durable performance in harsh industrial environments.

Yes, models with the M3 indicator are certified explosion-proof (ExdⅡCT6Gb) dan intrinsically safe (ExiallCT6Ga), making them ideal for hazardous areas in chemical, oil, and gas industries.

The gauge supports 4-20mA two-wire output, switch signals, and HART protocol, allowing integration with DCS, PLC, and SCADA systems for real-time monitoring.

Yes, it measures liquids with viscosities up to 500 mPa·s, including heavy oils, syrups, and slurry, without sacrificing accuracy or responsiveness.

Yes, fully customizable solutions are available, including measurement ranges, materials, indicator types, and signal outputs, ensuring the gauge meets specific industrial process requirements.

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Dengan memilih Instrava, Anda mendapatkan mitra dengan pemahaman mendalam tentang aplikasi industri dan keahlian untuk memenuhi tantangan operasional saat ini.
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Kami menyediakan kustomisasi tingkat teknik agar sesuai dengan kondisi proses tertentu. Dari rentang pengukuran dan bahan hingga sinyal keluaran dan opsi pemasangan, solusi kami dikonfigurasikan agar sesuai dengan aplikasi nyata.

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