Level Meters

Level Meters are devices that measure the level of a liquid in a fixed area. There are two main types of meters in the measurement of liquids: contact and non-contact. Differing technologies are used successfully to determine a liquid’s level. These include ultrasound, flotation, conduction, vibration, hydrostatic and radar level sensors with their appropriate transmitters.

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Non-contact Radar Level Transmitter | GF 2298

Non-contact Radar Level Transmitter - Overview

This rugged, high-performance radar level measurement sensor has a transducer and processing electronics incorporated in one. It is suitable for single and multiple-tank applications. 2-wire sensors are recommended using either HART protocol or 4 to 20 mA for direct communication with a panel mount controller or a PLC. This is used for liquid level measurement in sumps or tanks, for tank volume measurement, or open channel flow measurement. Sensing ranges up to 20 m (66 ft) are available. PP and PVDF sensor bodies provide the best chemical resistance in applications where concentrated chemicals need to be detected. Applications include Water Treatment, Corrosive Industrial Waste Treatment, Filling, Batching, Bulk Transfer, and Dirty Liquids.

Non-contact Radar Level Transmitter - Features
- 2-wire compact sensor
- Compatible with 9900 Sensor (optional signal converter)
- Non-contact level measuring
- Narrow 7° beam angle
- Level, volume and open channel flow
- Compact housing
- Fully temperature-compensated electronics
- Outstanding signal processing software providing highly accurate measuring results
- Chemical resistance - PP or PVDF sensor body
- Secondary lightning protection
- 4 to 20 mA / HART interface
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Non-contact Radar Level Transmitters | PiloTREK WP–200

Non-contact Radar Level Transmitters - Overview

This non-contact radar level transmitter uses 80 GHz FMCW radar. The key advantages of 80 GHz technology are a smaller antenna size, improved focusing capability, and a narrower beam angle. This can be used to measure liquids, bulk solids, emulsions, and chemicals across the water, food, energy, pharmaceutical, and chemical industries, delivering millimetre-accurate results. This is also well suited for liquids with a gas blanket, vapour-prone substances, and large-particle bulk solids. This includes open-channel flow measurement and has threshold functions to suppress false and interfering echoes. The transmitter can also operate in a vacuum. The device can also be used with HART® compliant NIVELCO EView2, MultiCONT universal process controller, MonoCONT smart field display & data logger, and PACTware™ software, or configured via Bluetooth® communication using the MobileEView application.

Non-contact Radar Level Transmitters - Features
- Measuring range up to 30 m
- Configuration via Bluetooth® with MobileEView app
- PACTware™ compatible
- 5 years warranty
- Ex variant
- 2-wire 80 GHz (W-band) radar
- Accuracy of ±2 mm
- Easy to install
- 1", 1½" encapsulated antenna
- Submersible
- User-friendly threshold management
[embed]https://www.youtube.com/watch?v=DZEVUFEXHR4[/embed]

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Ultrasonic Liquid Level Transmitters | EasyTREK SP–300

Ultrasonic Liquid Level Transmitters - Overview

These high-performance level transmitters measure the level of sump tanks or open-channel flows. These are installed on the tank's roof or above the liquid's surface. The transmitter produces an output signal (analogue or HART® digital) proportional to the liquid level. It has an integrated blind transmitter and is readable and programmable remotely through HART® protocol. There are two mounting options: a 1½" and a 2" process connection. Its 1" threaded neck facilitates suspending it above the medium, a typical water/wastewater application.

Ultrasonic Liquid Level Transmitters - Features
- 2-wire integrated level transmitter
- Non-contact level measurement
- Maximum 25 m (82 ft) measuring range
- Narrow (5°) beam angle
- Full temperature compensation
- IP68
- HART® communication
- Ex version
- 5 years warranty
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Compact Tuning Fork Level Switch
R3,705.00
Compact Tuning Fork Level Switch - Overview

This product is a liquid-level switch based on vibrating short tuning fork technology. A piezoelectric crystal is used to vibrate the tuning fork at its natural frequency. When used for low-level alarm purposes, the liquid in the container drains downward through the tuning fork, causing a change in natural frequency. This is detected by the electronic components and switches the output state. When used for high-level alarm purposes, the liquid in the container rises and makes contact with the tuning fork which changes the vibrating frequency, switching the output state. This compact design is made from stainless steel, making it a durable instrument suitable for a variety of liquid applications including viscous liquids, aerated liquids, and grout. The switches are threaded into piping or storage tanks, or installed in food industry facilities through sanitary fittings. The direct load switch is suitable for all power or PNP outputs and is used as a direct interface to the PLC. Apply only to secure areas. Operation is affected by flow, turbulence, bubbles, vibrations, solids content, coating, liquid properties, and product changes.

Compact Tuning Fork Level Switch - Features
- No calibration
- Easy installation
- Polarity insensitive
- Short circuit protection
- Industry-standard plug/socket fittings are used
- No moving parts or gaps for minimal maintenance
- Electronic components, Self Test and Condition Monitoring
- LED displays
- Magnetic test points provide convenient functional testing
- Compact design
- Lightweight
- The "Fast Drop" tuning fork design has replacement response time for viscous liquids
- Sanitary connector
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No Contact Ultrasonic Level Sensor | 2270
Price range: R20,712.00 through R25,911.00

No Contact Ultrasonic Level Sensor - Overview

The type 2270 is a rugged, high-performance ultrasonic level measurement sensor, having transducer and processing electronics incorporated in one single housing. It provides sophisticated echo detection features. Suitable for single and multiple tank applications. 2-wire sensors are recommended using either HART protocol or 4 to 20 mA for direct communication with a panel mount controller or a PLC. Applications include liquid level measurement in sumps or tanks or open channel flow measurement. Sensing ranges up to 8 m are available. PP and PVDF sensor bodies provide the best chemical resistance in applications where concentrated chemicals can be detected.

No Contact Ultrasonic Level Sensor - Features
- 2 wire compact sensor
- Non-contact level measuring
- Narrow 5° beam angle
- Level, volume and open channel flow
- Compact housing
- 32 points of linearisation
- Fully temperature compensated electronics
- Outstanding signal processing software - highly accurate
- PP or PVDF sensor body provides best chemical resistance
- Secondary lightning protection
- 4 to 20 mA / HART interface
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Ultrasonic Level Meter | LEV100
Price range: R12,457.00 through R24,915.00
LEV100 Ultrasonic Level Meter Overview

WESS LEV100 ultrasonic level meter utilises enhanced ultrasonic technology to measure liquid or solid levels in various applications with superior accuracy and reliability. The instrument continuously provides the user with numeric & graphic screens representing the distance to medium level, an echo profile image to ensure correct configuration during commissioning and saved data analysis for a maximum of 400 days. LEV100 series offers two types of controllers and various types of sensors to suit most field requirements. It's isolated electric design enables minimal maintenance.

Ultrasonic Level Meter LEV100 Features
- Continuous Measurement
- Single or Dual Channel Measurement
- 10,000 Points Data Logging & Trend Mode
- Various Types of Sensors
- ASF (Automatic Signal Filter)
- Agitator Free Algorithm
- Automatic Temperature Compensation
- Max 400 days data logging
- Narrow ultrasonic beam angle (3 degrees)
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Ultrasonic Portable Sludge Level Meter | ENV100-P
R93,705.00
Portable Sludge Blanket Level Meter - Overview

The ENV100-P Ultrasonic Portable Sludge Blanket Level Meter utilises enhanced ultrasonic technology to measure the sludge interface level in various types of clarifiers, settling tanks and thickeners with superior accuracy and reliability. The portable meter is designed to offer economic operation where dozens of clarifiers exist. Users can use the meter according to their specific requirements and field conditions. Includes internal data memory and one can retrieve all measurement data through the RS232 port after field visits. The portable meter has all the features that the fixed model has. Get accurate and reliable measurement results all the time.

Portable Sludge Blanket Level Meter - Features
- In-situ measurement
- 4 representative field menu programming
- Measurement result outputs through RS232 port
- Measurement data can be saved and checked through LCD screen
- No need to carry and touch the contaminated cable
- Portable on-site Measurement
- Field-adjustable
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Ultrasonic Sludge Blanket Level Meter | ENV120S
Price range: R148.00 through R53,389.00
Ultrasonic Sludge Blanket Level Meter - Overview

The Ultrasonic Sludge Blanket Level Meter uses enhanced ultrasonic technology to measure the sludge interface level in various clarifiers, settling tanks and thickeners. The superior accuracy and reliability give continuous and real-time measurement. The numeric & graphic screens display the distance to the blanket, and give an echo profile image to ensure correct configuration during commissioning and saved data analysis. Additional features such as ASF (Abnormal Signal Filter) eliminate irregular field noise such as moving structures intermittently obscuring the signal. It also incorporates a compressed air cleaning system that keeps the sensor running optimally and guarantees low maintenance measurement. Specially designed mounting kits are also available. Applications include Waste Water Treatment Plants, Sewerage Treatment and Industrial Water Treatment.

Ultrasonic Sludge Blanket Level Meter - Features
- Continuous and real-time measurement
- High temp. & chemical resistive sensor
- Virtually maintenance free
- Superior signal control and tracking algorithms
- Abnormal signal filtering algorithm
- Light and heavy layer level measurement with dual frequencies
- Max. 400 days data logging and monitoring
- Automatic sensor cleaning
- Wireless option
- Free WESSWARE software
[embed]https://www.youtube.com/watch?v=-BTHd6Gx9fg&feature=youtu.be[/embed]

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Flange Ultrasonic Level Meter | Flange-RWLM

Flange Ultrasonic Level Meter - Overview

The Flange Ultrasonic Level Meter utilises the Time-of-Flight principle. The sensor emits ultrasonic pulses and the surface of the media reflects the signal back and the sensor detects it again. The time of flight of the reflected ultrasonic signal is directly proportional to the distance travelled. With the known tank geometry, the level can be calculated. It requires virtually no maintenance as it makes no contact with any mediums. It is also not affected by dielectric constant value, humidity or density. It also has a vibrating sensor diaphragm which eliminates build-up and cleans the meter. Suitable for continuous, non-contact and maintenance-free level measurement of fluids, pastes, sludges and powdery to coarse bulk materials.

Flange Ultrasonic Level Meter - Features
- Level Range: 4,6,8,10,12,15,20,30m
- Accuracy: 0.5%-1.0%
- Resolution: 3mm or 0.1%
- Display: LCD Display
- Analog Output: Two Wires 4-20mA/250Ω Load
- Non-contact, virtually maintenance-free measurement
- Measurement unaffected by media
- Calibrate without filling or discharging
- Self-cleaning effect
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Open Channel Radar Flowmeter | RWRadarFlow

Open Channel Radar Flowmeter - Overview

This radar flow meter is suitable for measuring water levels and flow velocity of open channels, rivers, reservoir gates, pipe networks of subterranean river courses and irrigation channels. This product can effectively monitor the change status of the water level, velocity and flow, to provide accurate flow information for the monitoring unit. It comes with a variety of communication interfaces. The radar flow measurement system is suitable for all-weather, automatic collection and real-time monitoring of open channel, natural river flow and water data.

Open Channel Radar Flowmeter - Features
- Velocity Measurement Range: 0.05 ～ 15m/s (Related to water flow)
- Velocity Measurement Accuracy: ±1% FS, ±2.5% of reading
- Transmitting Frequency: 24.000 ～ 24.250GHz
- Distance Accuracy: ±1cm
- Protection Degree： IP66
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Guided Float Switch | GFPS-2282

Guided Float Switch - Overview

The Guided Float Switch is used to control the level of liquid in tanks economically. The switch is virtually maintenance-free and is compact in design. The reed contacts have high switch capacity. The reed contact in the sensor body is switched with a magnet. The switching function (N/O contact and N/C contact) is determined by the installation position. The function can be changed by simply turning 180°. It is especially suited for the simple, mechanical monitoring of fill levels in very small tanks. The housing is made of PP or PVDF making it resistant to several chemicals. Applications include: Cooling Water, Demineralised Water, Water/Glycol Solutions and Chemicals.

Guided Float Switch - Features
- Optimal chemical compatibility
- Very compact design
- Available in PP and PVDF versions
- For small tanks
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Anti-Corrosion Radar Level Meter | QT 901

Anti-Corrosion Radar Level Meter - Overview

This radar level meter is a 26G high-frequency radar sensor. The maximum measurement range can reach up to 10 meters. The sensor material is PTFE which is suitable in corrosive tanks containing acids or alkaline liquids. A radar signal is emitted in short pulse form from the antenna end of the radar level gauge. The pulse is reflected by the surface of the object. It is then received by the antenna as a radar echo. The advanced microprocessor and echo processing technology enhances the echo ability and also helps to avoid interference. The rotation period of the radar pulse from emission to reception is proportional to the distance, which then calculates and indicates the level of the tank. The integrated anti-corrosion outer cover effectively prevents the corrosive medium from contacting the probe. It has excellent anti-corrosion performance making it suitable for the measurement of corrosive mediums. It has excellent measurement accuracy and reliability. It has a high signal-to-noise ratio to ensure better performance even in a fluctuating environment.

Anti-Corrosion Radar Level Meter - Features
- Explosion-proof Grade: Exia IIC T6 Ga
- Measuring Range: 10 meters
- Frequency: 26 GHz
- Temperature: -60℃~ 150℃
- Measurement Precision: ±2mm
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High-Frequency Radar Level Meter | RD800

High-Frequency Radar Level Meter - Overview

The 76-81GHz frequency modulation radar level meter uses a millimetre wave band with high frequency. It can detect smaller targets and achieve more precise positioning than microwave radar. It also has higher resolution and stronger confidentiality. Strong anti-interference. Applications include long-distance target detection, strong smoke and dust environments, long-distance imaging, multi-spectral imaging, etc.

High-Frequency Radar Level Meter - Features
- Frequency: 76GHz - 81GHz
- Measuring range: 0.3 m- 120m
- Measurement accuracy: ±1mm
- Power: 15-28VDC
- Communication: 4-20mA. HART, MODBUS
- Mobile phone Bluetooth debugging
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Hydrostatic Level Sensor | GF 2250

Hydrostatic Level Sensor - Overview

This hydrostatic level sensor is for level and depth control. It has a one-piece, injection-molded PVDF body and ceramic diaphragm for superior compatibility in corrosive liquids. It can be mounted through the tank wall or submersed from the top of the tank, the hydrostatic sensor measures the weight of a fluid column. The pressure at the sensor is proportional to the change in the tank level. A capillary tube in the cable ensures that changes in the atmospheric pressure can be compensated. This sensor is available with a proprietary digital (S³L) or 4 to 20 mA output. The extended cable and capillary tubing with the union connection and a customer-supplied conduit allow for submersion in process vessels. It is unaffected by harsh conditions because of its high-end PVDF, ceramic and FKM materials. This makes them ideal for difficult applications in harsh process environments. When connected to a GF Signet 9900 transmitter, this will enable you to display measurement values and adjust settings exactly where you want. It is extremely accurate as the highly sensitive hydrostatic sensors detect even small level changes and disregard false level signals from steam, foam or any other debris on the liquid surface.

Hydrostatic Level Sensor - Features
- Unaffected by harsh conditions
- Everything at a glance with GF Signet 9900 transmitter
- Extremely accurate
- Ideal for electroplating
- Level and depth measurement
- 4 to 20 mA or digital (S3L) output
- Flush ceramic diaphragm
- Easy submersible installation
- Choice of two pressure ranges
- Standard union connection and extended cable and capillary tubing (10 m)
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Level Float Switch | GF2285

Level Float Switch - Overview

The Level Float Switch is a double-chambered float made of injection moulded, tough polypropylene that ensures good waterproof protection. The contacting microswitch is incorporated in the float. The cable of the level switch is waterproof and PVC-insulated. The level switching takes place when the contact reaches the ±45° switching angle. The switching differential of the level switch is adjustable by the position of the counterweight on the cable. The level switches should be arranged appropriately in case of multi-level switching tasks to avoid undesired tangling of the cables. Suitable for level switching of various liquids, sewage in shafts, tanks, basins or cisterns. Different control tasks such as liquid level monitoring and pump control can be realised. As it is a mercury-free contact it is suitable for level switching of drinking water, raw water or polluted liquids with low solid content.

Level Float Switch - Features
- Mercury-free operated micro switch
- Hermetically moulded, double chamber
- Use for drinking and wastewater
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