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Continuous level measurement over a measuring range of up to 8 meters
The Tower-Sens is a rod detector based on the well-known level gauging system LB 490 Uni-Probe. It has been designed specifically to monitor large measuring ranges.
With only one electronic unit and only one flameproof-housing, the Tower-Sens is significantly more economical than systems comprising several short, cascading detectors. Moreover, the wiring efforts and the risk of complete system failure are drastically reduced.
The combination of good value, reliability, accuracy and low source activity make the Tower-Sens the ideal solution for measuri
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Sludge Finder - effective sludge level detection and control :
Sludge Finder is a reliable, effective sludge interface monitor. A single controller may be used to measure up to four tanks. Sludge Finder uses an underwater acoustic sensor to provide continuous, reliable sludge level detection that lets you reduce pumping, optimise dosing and gives staff time to concentrate on other things.
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The BinMaster 3DLevelScanner utilizes a 2-dimensional array beam-former that sends very low frequency, dust-penetrating acoustical pulses and receives echoes of the pulses from multiple points on the surface of the material in the bin. The 3DLevelScanner offers multiple point accuracy as the device takes measurements from multiple points versus a single point, thereby taking into account variations that can occur on material surfaces. Standard ultrasonic, radar or cable-based units measure just one point and determine a single distance, while the 3DLevelscanner takes measurements from multiple points within the bin, ensuring greater accuracy.
The low frequency technology penetrates dust, making it suitable for environments where ultrasonics and radar may fail. It is unaffected by material type and is appropriate for powders, granulates, pellets and other solids with no need for special calibration. Employing non-contact measurement, it is suitable for foods, chemicals and pharmaceuticals. There is no risk of moving parts coming into contact with bin material. It offers long measurement range of up to 220 feet and is appropriate for tall bins (taller than they are wide). Three independent transducers promote accuracy and system redundancy, making it one of the most advanced technologies available.
The 3DLevelScanner provides the user a scaled 4-20mA output that can represent either the product or headroom volume. Using an optional HART or RS-485 connection, the user can also connect to the scanner using the 3DLevelManager software. This advanced software allows the user to view real-time data from the scanner and make configuration changes remotely from a PC.
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Protective coating extends the scope for use
In the past ultrasonic sensors could often not be used for measuring corrosive media levels or in applications involving machinery and equipment being cleaned with corrosive liquids. This was very much down to the corrosive effect of these liquids and their emitted gases on the ultrasonic transducers. In some instances the zws sensor had to be dispensed with altogether to avoid liquids or gases damaging the sensor plastic cover.
A special zws sensor design is now on the market. It involves the entire sensor housing including the ultrasonic transducer up to the connecting cable being provided with a special parylene protective coating. As a result, the whole of the sensor is hermetically protected.
Thanks to this novel protective coating, zws ultrasonic sensors can now be used in corrosive environments. This new sensor range is called crz.
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Ultrasound level sensor SIMATIC PXS
Recording of fill levels from a distance of 3 cm to 10 m
Our sonar proximity switches sense objects of varying materials, shapes, colors or consistencies with absolute precision, flexibility and reliability.
The ultrasound level sensor is proper for level applications in containers due to its design and its technical constructions. The devices feature two switching outputs to which different distances can be assigned. This allows, for example, the minimum and maximum fill level in a tank to be evaluated. Regardless whether the objects are liquid, solid, powdery or even transparent.
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Brings on intensively bundled sound field directly to the measuring point
The new SoundPipe can be used with each and every zws-15 sensor. It directs sound to the measuring point thus allowing measurements to be taken in drill holes and openings with diameters under 3 mm.
Since the zws-15 sensor blind zone is inside the SoundPipe, measurements can be directly taken as from the sound outlet opening.
The SoundPipe is slipped onto the zws-15 sensor at the front and secured with plastic adhesive.
A typical field of application is measuring levels in microplate wells which are used in medical analysis technology. The SoundPipe can be directly placed over the opening; this makes exact positioning that much easier.
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Gobius is installed and ready to use in 30 minutes!
Gobius is the first level indicator in the world that measures the contents of tanks in stainless steel, steel, aluminum, plastic and fibre glass from the OUTSIDE. Gobius is reliable, regardless of the tank’s size, shape, or amount of deposit on the inside of the tank wall. Level indication conducted from the outside of the tank means contact free measurement. The advantages of this is highly appreciated by the pharmaceutical, chemical and food industries, where demands on handling of corrosive and sterile liquids are very high.
Very easy to calibrate
No tanks look the same. There are always differences in e.g. size, construction, thickness and age. In order to compensate for these differences you have to calibrate the tank before you start to use your Gobius. However, the calibration only takes a few seconds, all you need to do is to press a button while the tank is full or empty.
The Gobius Technology (patented)
Level indicator Gobius is based on our innovative Gobius Technology, best described as ”knock and listen”. Every sensor that is placed onto the tank wall consists of a shaker and an accelerometer. When the shaker creates a vibration in the tank wall, the accelerator measures the size of the vibration and passes the data on to the control unit. Each sensor is only 26 mm high with a diameter of 70 mm.
Complete system
On the sensors there are strips of tape that are provided to attach the sensors directly onto the surface of your tank. All necessary cables and plugs needed to connect the sensors and panel with the control unit and to external systems are included.
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Sensor membrane with resistant protective film
Filling often entails some spatter getting onto the sensor membrane. This often hardens so that after a lengthy operating period soiling on the sensor membrane can only be mechanically removed. The risk here is of the sensor membrane also getting damaged.
The new protective film of the crm+ sensors now makes it easy to remove caked-on soiling, such as hardened casting compound and cement spatter.
The protective film is also highly resistant to corrosive media.
The threaded sleeve is made of 1.4571 stainless steel.
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Continuous Level Measurement
The external mounting and the non intrusive arrangement of a continuous level measurement are some of the outstanding advantages, that determine it for various applications like:
high- and low-pressure reactors
agitated vessels
bunkers
autoclaves
hot material containers, etc.
No matter, what the physical- and chemical properties of the measured product are nor what the shape of the vessel is.
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With our new Laser-Distance Sensors DLS-B you measure absolute distances up to 500 meters. Thanks to state of the art laser technology the DLS-B device measures with a precision of 1.5 millimeters. It represents a cost efficient solution even at extreme environment temperatures as low as -40° C.
The DLS-B is an optical measuring device. You can measure, maintenance-free, distances on natural and reflective surfaces. You determine positions on objects difficult to access or with very high surface temperatures. Just as well you can measure distances in an aggressive environment in an easy and accurate way.
Serial, analog and digital interfaces are standard features for the complete DLS-B product line. This enables you to easily connect the DLS-B to a control system (SPS, IPC or PC)
The DLS-B device runs in a “Stand-alone-mode” and independently executes all programmed functions. Thanks to the flexible range of functions an external display can be connected directly to the DLS-B device via interface RS232 or RS422. Via a digital input, measurements can also be activated from an external button or switch.
For easy configuration of the DLS-B devices, the necessary software is at your disposal
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Continuous measurement and point level detection
Endress+Hauser offers an extensive range of systems for level easurement
or point level detection.
In solids or liquids - our level measurement principles meet your needs:
- Radar,
- guided radar,
- ultrasonics,
- vibration systems,
- hydrostatic pressure,
- differential pressure,
- capacitance as well as conductive probes,
- electromechanical level procedures,
- external ultrasonics,
- microwave barriers and
- paddle switches.
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The pressure-resistant hps sensors
can be employed for filling level measurement in positive pressures of up to 6 bar.
The 1/2'' threaded socket
facilitates the sensor’s direct installation in a pressure vessel. As an accessory, also a 1" socket with additional splash protection is available.
The housing
is made of stainless steel.
The analogue output 4–20 mA and 0–10 V and the pnp switched output
Optionally, the sensor can also be parameterised with the Link-Control adapter LCA-2 and the LinkControl software under Windows®.
During operation, the measured filling level is directly indicated on the digital display in mm/cm or %.
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Radar measurement technology is non-contacting and low maintenance. Because microwaves require no carrier medium, they are virtually unaffected by the process atmosphere (vapour, pressure, dust or temperature extremes). Siemens Milltronics offers a choice of models to meet the specific needs of your application.
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With LB440-RID, the problem of weld inspections is considerably reduced. You have full and accurate information on your process - continuously!
LB440-RID is already being successfully operated in many plants world-wide.
All continuous level measurements employing rod detectors or the SuperSens point detector can be equipped with the patented Radiation Interference Discrimination LB440-RID.
The system works only with Co-60 sources - the energy of the Cs-137 radiation (660 keV) is too close to the energy of sources commonly used in weld inspections to be reliably discriminated.
Existing Berthold Technologies equipment can be easily upgraded to include the RID technology.
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Ultrasonic sensors use sound waves rather than light and are ideal for sensing uneven surfaces, liquids, clear objects, and objects in dirty environments.
• Affordable ultrasonic sensors with higher resolution and repeatability
• Stable and consistent performance with integrated temperature compensation
• Models rated up to IP69K
• Chemical-resistant models
• Models available with minimal dead zone and extended sensing ranges
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Use this versatile instrument to continuously measure, display, transmit and control liquid level in storage tanks or pumping stations, or to monitor and totalize Open Channel Flow through any flume or weir. Mount the non-contacting ultrasonic sensor above the liquid being measured and install the watertight Electronics enclosure nearby.
- Measure Level or Open Channel Flow
- User-Friendly Calibration System
- Isolated 4-20mA (1000 ohm)
- False Echo Rejection
- 3 Programmable Control Relays
- Electrical Surge Protection
- Intrinsically Safe Sensor Option
- Self-Testing
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USonic
US Series Transmitter using US-XX Series Electronics The USonic provides a non-contact Ultrasonic measurement in a 2-wire 4-20 mA, Hart output signal with internal characterizations for Open Channel Flow, Level, Distance and Volume. A 30 ft. measurement range with 0.15% accuracy. Suitable for all Class I Div. 1, Zone 0, I.S. or XP locations. SmartGain circuitry ignores most internal vessel obstructions.
USonic-R
USonic-R Series Transmitter using USR-XXXX Series Electronics USonic-R provides a non-contact Ultrasonic measurement in a 2-channel system with (2) 4-20 mA output, allows two independent non-contact measurements, or sum or differential measurements. Modbus output signal with internal characterizations for Open Channel Flow, Level, Distance and Volume. A 30 ft. measurement range with 0.15% accuracy. Wall mounted controller suitable for all Class I Div. 2, Zone 0 locations, with sensors I.S. for Class I Div. 1 locations. SmartGain circuitry ignores most internal vessel obstructions.
Universal Sonic - 505-5100 Series
505-5100 Series Transmitter using 405-5100 Series Electronics The 505-5100 Series is a Line powered Ultrasonic measurement with range to 80 ft. Suitable for all Class I Div. 1, Explosion Proof locations. Internal circuitry ignores most internal vessel obstructions.
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This new Greyline Transmitter displays, controls and transmits level. Mount the non-contacting ultrasonic sensor at the top of your tank, and the compact, watertight electronics/display enclosure at a convenient location nearby. Operators can calibrate the LIT25 with its 2-button Keypad, without climbing the tank. Use the built-in relay for level control or alarm, the large 4-digit display for local indication, and the isolated 4-20mA output to to transmit level to a PLC.
- Low Cost
- Large LCD Display
- Programmable Signal Relay
- Built-in 2-Key Calibrator
- Watertight, Dust tight Enclosure
- Self-Testing
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Siemens ultrasonic level measurement products are the cost-effective choice for monitoring and control in short- to long-range applications for liquids, slurries, and solids in a wide range of industries. Non-contacting technology offers low maintenance advantages. Siemens is the world leader in ultrasonic level measurement technology, with many models available and strong application experience to support you.
Ultrasonic Transmitters
Ultrasonic Transmitters provide easy-to-use continuous measurement. These transmitters offer superior reliability for level, volume, and flow applications in the water and wastewater, food, and chemical industries.
Controllers
Extensive product range from simple single-channel controllers to versatile systems for the monitoring of ten measuring points.
Transducers
Wide range of transducers with various measuring ranges, applications, and process connections
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The RPS-409A-IS is an intrinsically safe, UL Listed analog ultrasonic sensor. It is a self-contained sensor in a 30mm PVC barrel housing. It is powered by 16-30VDC with reverse polarity protection. It also has a narrow beam angle, which enables it to get into tight places. A flat target can tilt up to 10 degrees and still be detected.
The RPS-409A-IS has a short circuit protected analog 0-10VDC output. Example using the RPS-409A-80-IS: The output is a linear .125 volts per inch.
The RPS-409A-IS has built in temperature compensation to provide accurate readings throughout the entire operating temperature range.
An LED indicator is provided. The LED is green when not detecting and changes to red when a target moves into place. The sensor is completely sealed and the connection is made by way of IP and NEMA rated cables.
There are four sensing ranges available: 4-40", 6-80", 10-144", and 12-216".
The RPS-409A-IS is designed to take advantage of today's PLC and computer analog input cards. The numerical values that are programmed into the PLC or computer will determine the zero and span.
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Sentry SR
The Sentry SR Series of lasers are the latest in laser technology designed for both level and positioning applications. The Sentry SR operates up to 25 m and is housed in a rugged, explosion-proof enclosure.
The Sentry SR Series of Level Monitors/Object Positioners are:
- Optimized for short-range applications (less than 25 m)
- Available with a cooling plate option, extending operation to 150°C.
All Sentry SR Series Level Monitors are available in DV and CP models:
- DV: Optimized for performance in environments with excessive dust and vapor
- CP: Optimized for clear path applications.
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Sensortechnics is a leading manufacturer and distributor of a wide range of sensors and fluid control devices. The product portfolio includes basic pressure sensors, rugged transmitters, submersible level sensors and customised pressure sensing systems from 1 mbar up to 1000 bar as well as liquid level sensors and switches, flow, oxygen and force sensors. Additionally, Sensortechnics offers ultrasonic air bubble, air-in-line, liquid level and fluid monitoring detectors. Fluid control devices include miniature solenoid valves, diaphragm pumps and electronic pressure controllers.
Sensortechnics has more than 25 years of experience in providing highly customised sensing products and in the development of complex integrated fluid control systems for OEM customers worldwide.
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Pulsar™ pulse burst radar transmitters are the latest generation of loop-powered, 24 VDC, level transmitters. It has lower power consumption, faster response time and is easier to use than most loop-powered radar transmitters and can be utilized on virtually all level measurement and control applications.
Application conditions include processes exhibiting varying specific gravity and dielectric, visible vapors, high fill/empty rates, turbulence, low to moderate foam and buildup.
Pulsar features IS, XP and Non-Incendive approvals, HART® digital communications, 5.8 or 6.3 GHz operating frequency and embedded software enabling configuration without the need for another device such as a PC.
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Extremely short microwave impulses with low emitted power in the C-band and K-band frequency range are emitted by the antenna system to the measured product, reflected by the product surface and received again by the antenna system. They spread with light velocity and the time from the emission to receipt of the signals is proportional to the level in the vessel. A special time spreading procedure enables a reliable and precise measurement of extremely short time periods.
By simply entering the vessel dimensions, a level-proportional signal can be displayed. An adjustment with emptied and filled vessel is no longer necessary!
The spreading of microwaves is virtually not affected by the ambient temperature and ambient pressure. Radar sensors are ideal for use under arduous process conditions. Pressures from vacuum to 160 bar and temperatures between -40 and 400°C are no problem for a radar level measurement.
Fluctuating product compositions or complete changes of the product do not influence the measurement result. A new adjustment is not necessary.
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For measuring ranges up to 70 m, VEGA now has an optimised radar technology in its program. Due to its increased receiver sensitivity (factor 40), VEGAPULS 68 delivers reliable measured values in spite of higher signal damping in solids.
Non-contacting radar measurement delivers reliable levels in dusty environments, like in storage facilities for building materials. Also in the food processing industry, in steel production as well as for level measurement of powders and granulates in the chemical industry, the extended measuring range has proven to be extremely effective. Adjustable fl anges allow the eduction of false refl ections and the optimisation of the useful echo.
All advantages in an overview
- non-contact measurement
- unaffected by dust generation
- not infl uenced by fi lling noise
- high dynamic range of the sensor
- measuring range up to 70 m
- antenna cleaning by cooling air
- dust-Ex approval
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These self-contained Ultrasonic Sensors provide level control of both liquid and bulk materials. This gives the user a viable alternative to bubblers, floats, capacitance probes, and pressure transmitters.
With sensing ranges of 30 and 40 feet respectively many tanks are within reach. Their incorporation of a microprocessor design makes it possible to achieve signal conditioning. This gives the sensor the ability to process the return ultrasonic echo and distinguish between false targets and real targets.
With the incorporation of a microcontroller into the design of the RPS-3000PVC and RPS-4000 many of the common problems facing long range sensing applications have been overcome. Software was then written to optimize the performance characteristics of the sensors. The artificial intelligence analyzes and conditions the return ultrasonic echo. This process filters out any false echoes and electrical noise. An additional task that the microcontroller does is temperature compensation.
The following is a brief list of features for the RPS-3000PVC and RPS-4000.
SIMPLE CALIBRATION: The sensing window can be adjusted by using one of three easy methods. NOTE: When the sensors are powered up and the control lines not used, they are factory preset to maximum range.
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The RPS-409A-5V analog ultrasonic sensors are self contained in a 30mm barrel housing.
The RPS-409A-5V has temperature compensation built in to provide accurate readings throughout the entire operating temperature range.
They are powered by 15 - 24VDC with reverse polarity protection. The RPS-409A-5V have a short circuit protected analog 0 - 5VDC output. The analog
voltage is a fixed volts per inch based on the maximum range of the unit. For example using the RPS-409A-96-5V, the output is a linear 52.1mV per inch. A target placed 12 inches from the sensor will result in an output signal of 625mV or a target placed at 96 inches from the sensor will result in an output of 5V.
For set up purposes an LED indicator is provided. The LED is Green when not detecting and changes to Red when a target moves into place. The sensor is completely sealed and the connection is made by way of IP and NEMA rated cables.
Besides the input and output lines there is a sync/Tx line provided. This can be used for connecting multiple sensors together to prevent cross talk, or to force the sensor to transmit at a particular time.
The RPS-409A-5V is designed to take advantage of today's PLC and computer analog
input cards. The analog card chosen will determine the resolution of the system. The numerical values that are programmed into the PLC or computer will determine the zero and span.
If a set point or set points are required in the application, please refer to the Migatron SPC-701, SPC-704, or M-1000 control products. Both the SPC-704 and M-1000 can also provide excitation power to drive the sensor.
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The RPS-401A, RPS-426A analog ultrasonic sensor is mounted in a 30mm barrel housing, and is completely self contained. It is powered by 20-30VDC, and is reverse polarity protected. It also has a narrow beam angle which enables it to get into tight places. A flat target can tilt up to 8 degrees and still be detected. The RPS-401A, RPS-426A have 2 short circuit protected analog outputs, 4-20mA and 0-10 VDC. These outputs can easily be inverted and can be scaled over almost any range by means of adjusting the zero and span controls. For set-up purposes an LED strength indicator is provided. This LED is Green when not detecting and fades to Red as a target moves into place, depending on how much reflected signal is coming back from the target. These analog ultrasonic sensors can be used as a level sensor, loop control, roll diameter, and many more applications where a continuous distance measurement is required.
The frequency of operation for the RPS-401A is 212kHz for the 4" to 40" and 150kHz for the 8" to 80". The RPS-426A has a 8" to 80" range and operates at a frequency of 150kHz. The RPS-401A barrel is constructed of plastic Valox, and the RPS-426A is stainless steel. The barrel measures 30mm x 100mm. A standard 6' cable is provided. An optional quick disconnect plug is available.
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Pulsar's innovative dB range of transducers has taken ultrasonic level measurement into a new era. Unlike the high voltage, frequency dependent transducers of other manufacturers, which require special, protected interconnect cables, or low powered transducers built with intrinsic safety rather than performance in mind, the dB series combines low electrical power that meets intrinsic safety requirements with extraordinary high sonic power to give range and performance.
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The Acu-Trac® Smart 485 Level Transducer is an economical level sensing solution for storage containers with depths up to 1.9 meters (76 inches) for gasoline and 2.5 meters (98 inches) for other media.
The Acu-trac® Smart 485 monitors and processes liquid levels in real time. There are two message formats available on the RS-485 bus.
The Smart 485 family is chemically compatible with a wide variety of liquids - gasoline, diesel fuel, oils, urea (Adblue), water, wastewater, ethanol, hydraulic fluid, and engine coolants. It was designed for non-contact liquid level or industrial process control applications to 85°C. The Smart 485 can be used in general industrial, heavy duty vehicle, diesel engine generators, and mining, agriculture, water and waste water markets.
The Smart 485 was designed to allow the user maximum flexibility with its user programmable features. Accurate level volume measurements are dependant on the shape and dimensions of your tank. The Smart 485 is programmable to allow for non-linear flexible tank profiling.
Other user programmable selections enable the Smart 485 to be configured for a wide variety of response times, sensing ranges and full and empty limits. The digital filtering can be used to eliminate errors due to fluids sloshing in mobile tanks. The gauge drive output can be used to specify full and empty endpoints that best suit your application needs.
The Smart 485 meets NEMA4 standards and has three different electrical outputs choices to best meet your application need - 4-20mA; ratiometric voltage (0.5 – 9.0V); and non-ratiometric voltage (0.5 – 9.5 V).
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