Showing posts with label Siemens. Show all posts
Showing posts with label Siemens. Show all posts

Tuesday, February 26, 2019

Clamp-on Ultrasonic Flow Meters for HVAC and District Energy: How They Measure Up

Clamp-on Ultrasonic Flow Meter
While other flow measurement technologies (e.g. magnetic or vortex flow meters) are also used in district energy applications, clamp-on ultrasonic flow meters are often an optimal solution since they are externally mounted.They are especially well-suited for use with existing hot or chilled water distribution lines. In existing applications they are quick, easy and less expensive to install than other flow meter options because there is no need to cut the line, interrupt service, or drain the pipe. They also do not require the installation of bypass piping and valves for removal; maintenance expense is minimized since they do not have moving parts; and, used outside the pipe, they do not require periodic cleaning.

Clamp-on ultrasonic meters are also very versatile: They can be installed on the full range of district energy line sizes (and more - from 0.5” up to 394”), employed anywhere in the
hot or chilled water distribution process and used to measure two applications simultaneously. They may be installed where an “intrusive” flow meter is not possible or appropriate – when only temporary measurements are needed, for example. All measurements can be logged and time-stamped for creating analyses and reports.

Ives Equipment
877-768-1600
https://ivesequipment.com

Wednesday, January 30, 2019

The SIEMENS SIPART PS2: New Features


The SIEMENS SIPART® PS2 electro-pneumatic valve positioner is used to control the final control element of pneumatic linear or part-turn valve actuators. It is is currently the most widely used positioner for linear and part-turn actuators in a broad range of process industries. New features have been introduced, namely improved diagnostics, additional integrated pressure sensors, a fast open/fast close function, integrated booster, easy setup, a partial stroke test, fail in place function, and valve performance tests. Watch the video to understand more.

Ives Equipment
https://ivesequipment.com
(877) 768-1600

Monday, January 21, 2019

Customized Magnetic Flow Meter Solutions Specifically for Your Application

Siemens Engineering Instrument Solutions (EIS)
Have it your way.
Siemens Engineering Instrument Solutions (EIS)
Announcing new flow measurement solutions available from Siemens Process Instrumentation.

Siemens Engineering Instrument Solutions (EIS) is proud to offer new customized features for Siemens magnetic flow meters. This enables SIEMENS to take their high performance magnetic flow meter products and customize them to meet a customer’s specific needs. By offering out of the box features that would normally be conducted in the field, customers experience reduced startup time and cost savings.

  • Custom Cabling Options
  • Custom Tagging Options
  • Custom Meter ID Numbers
  • Custom Programming Options
    • Billing Digit Format
    • Register Units
    • Pulse Outputs Rates/Functionality
  • Adding Spools and Strainers

Benefits of Siemens magnetic flow meters:


Siemens Magnetic Flow Meter
Siemens Magnetic Flow Meter
While the customization features allow for you to fine tune the solutions, Siemens utilizes the already strong capabilities of their magnetic meter. These benefits include:
  • Remote Transmitter option with factory-mounted cables and connectors
  • No moving parts resulting in less wear and tear
  • Bidirectional measurement with no reduction in accuracy
  • Unrestricted flow tube for minimal pressure loss even at high flow rates
  • IP68/ NEMA 6P enclosure and cable , allowing for sensor burial and/or operation in flooding conditions
  • Durable enough to withstand extreme temperatures, high humidity and erosion.

Wednesday, December 12, 2018

Improve Safety and Reduce Cost with Remote Tank Monitoring

MindSphere
Siemens remote tank monitoring puts tank data
at your fingertips with secure wire- less communications,
an extensive instrumentation portfolio and MindSphere.
Siemens offers digital solutions for tank monitoring and other process variables in the upstream market. Manual tank monitoring is time consuming due to the long distances between sites and the time needed for manual measurements. Additionally, opening the hatch on the tanks presents a safety hazard to operators. Siemens remote tank monitoring solutions are fully customizable to meet your needs, including their MindSphere app designed to put real-time tank data directly in the hands of operators in the field and management in central monitoring stations. Siemens MindSphere cloud platform and industrial wireless communications technology combined with our extensive line of instrumentation improves asset management which reduces cost and improves safety.

Get more from tank data with MindSphere.
SITRANS LR250
SITRANS LR250 is a 2-wire, 25 GHz pulse radar
level transmitter for continuous monitoring of liquids
and slurries in storage and process vessels including
high temperature and pressure, to a range
of 20 m (66 ft).

At the core of Siemens remote tank monitoring solution is MindSphere, which serves as a central data hub for all of the tanks net- worked to the cloud platform. Within MindSphere, tank data is aggregated to produce diagnostics and build a behavioral profile and enable predictive maintenance. The data can also be processed to calculate other key measures such as volume within the cloud to meet your tank monitoring needs. With their tank monitoring app, you’ll be able to view the status, measurements, diagnostics, alerts and historical trends data from tanks across the network via a web- based platform on handheld devices and desktop computers, providing access to the data whenever and wherever you need it.

Choose the communications infrastructure to best suit your needs.

Siemens industrial wireless communications equipment is the necessary link between field instrumentation data and MindSphere. Their mobile wireless routers enable data transfer to MindSphere in remote locations and come with options for multiple cellular communications standards including LTE, UMTS, and GSM. This extended offering ensures the best signal for data transfer and the most reliable network for installations. Siemens adheres to the highest security standards in network security, and all communications solutions are encrypted with firewall protection to defend against unauthorized access and cyber threats. No matter the size of the network, their scalable and secure industrial communications technology is capable of delivering the solid foundation required for safe and efficient tank monitoring.

Maximize efficiency and return on investment with Siemens instrumentation.

Siemens' comprehensive portfolio of field instrumentation can be fitted to tanks to serve a variety of applications. Depending on the measurement accuracy, environmental conditions, and performance needed, Siemens offers a variety of instrumentation for pressure, temperature, level, and flow measurement. SITRANS LR250 is the first choice level radar transmitter for liquids in storage and process vessels. This transmitter is able to provide measurements for corrosive and aggressive materials, making it an excellent choice for crude oil measurement. Siemens wide selection of instrumentation ensures the right products are installed for optimal efficiency and return on investment.

Manual tank monitoring can be costly, time consuming and unsafe. As digitalization expands within the upstream market the need for the efficient management of resources while leveraging existing oilfield technologies is required to maintain a competitive advantage. Remote tank monitoring is a solution that enables the effective management of tank battery resources in preparation for the efficient deployment of transport for collection and maintenance.

DOWNLOAD THIS POST AS A PDF HERE

For more information on Siemens products, contact Ives Equipment by calling (877) 768-1600 or visit their web site at https://ivesequipment.com.

Thursday, December 6, 2018

How to Align SIEMENS Beltscale Idlers


Proper beltscale idler alignment is critical for your beltscale to run at its best. Precise idler alignment is very important if maximum accuracy of the weighing system is to be achieved. Misaligned idlers will result in unwanted forces being applied on each idler in the weighing area, causing calibration and measurement errors.

The idlers in the weighing area must be properly aligned and leveled by shimming. This video explains how to align SIEMENS beltscale idlers in order to get the most out of your beltscale system.

Ives Equipment
https://ivesequipment.com
(877) 768-1600

Tuesday, November 20, 2018

Comprehensive "Understanding Ultrasonic Level Measurement" EBOOK Available

This 209 page eBook is a comprehensive guide of ultrasonic level measurement. Courtesy of SIEMENS, this book provides the history of ultrasonic level measurement, the developments in technology over time, and the current state of best-in-class products.



877-768-1600

Monday, August 20, 2018

Understanding Valve Positioners

valve positioner
Valve positioner on
linear control valve
(Siemens SIPART)
Industrial valves allow the flow of a process fluid through a pipe. Valves always include some type of actuation (opening/closing) device - from simple manual levers to sophisticated electric or pneumatic actuation packages. Industrial valves can act as on/off or proportioning devices to allow full flow, no flow, or modulated flow. When valves are used for modulating fluid flow, an instrument called a valve positioner is installed.

A valve positioner is used in tandem with a valve actuator, the power source to open or close the valve. Positioners precisely direct the actuator to move the valve so that a desired flow volume is achieved and maintained. The positioner does this by monitoring the process condition, comparing it to a desired set point, and then pneumatically, electrically, or hydraulically manipulating the valve orifice until the difference between the set point and actual process variable is zero.

In closed loop control systems where the final control element are valves, valve positioners are the "brains" that provide the corrective signal to eliminate process offset. Positioners enable tighter control by overcoming the realities of valve wear, imprecise calibration, and a host of other process variable challenges.

Valve positioners are used throughout the process industries including power, pharmaceutical, chemicals, oil and gas, food and beverage, pulp and paper, refining and petrochemicals, pipelines, and many other processes.

Basic Function

positioner diagram
Diagram of typical flow control loop using valve positioner.
A valve positioner receives a signal from a controller. The controller could be part of a distributed control system (DCS), a programmable logic controller (PLC), or a discreet PID controller. The controller interprets a signal from some type of sensor, such as a flow transmitter, temperature transmitter, pressure transmitter, or other, and compares the transmitter reading to a desired setpoint. If the controller sees an offset (error), a corrective signal based on the difference, is sent to the valve positioner. The positioner then repositions the valve actuator that in turn readjusts the position of the valve, thereby changing the process condition, brining the system to to equilibrium.

Types of valve positioners:


Pneumatic Positioners

Pneumatic positioners receive pneumatic signals (3-15 or 6-30 PSIG) and proportion the supply air pressure to the valve actuator accordingly to move the valve to the required position. Pneumatic positioners are intrinsically safe and have the ability to provide a large amount of force to open or close a valve.

Electro-Pneumatic Positioners

Electro-pneumatic valve positioners are very similar to pneumatic postioners, except that they contain internal current-to-pneumatic converter (I/P). The current-to-pneumatic module receives a varying electrical signal (most commonly 4-20 mA) and converts that signal (proportionately) to a pneumatic output signal (3-15 PSIG or 6-30 PSIG). The pneumatic signal then then proportions the supply air pressure to the valve actuator.

Electric Positioners

Electric valve positioners receive an electric signal, usually 4-20 mA, 1-5 VDC, 2-10 VCD or 0-10 VDC and generally drive the motors in electric actuators. They perform the same function as pneumatic positioners do, but use electricity instead of air pressure as an input signal.

For more information on valve positioners, or any valve automation requirement, contact Ives Equipment by visiting https://ivesequipment.com or calling 877-768-1600.

Monday, August 13, 2018

Tutorial: How to Use the Push Buttons on the SIEMENS SITRANS P Family of Transmitters

The SIEMENS SITRANS P stands above the competition when it comes to easy operation. This video provides an outstanding tutorial on how the SITRANS P push buttons and display are used.

SITRANS P offer a complete family of devices that include digital pressure transmitters for measuring gauge pressure, absolute pressure, differential pressure, flow and level.

https://ivesequipment.com
(877) 768-1600

Saturday, July 21, 2018

SIEMENS SITRANS FX330 Vortex Flow Meter

SITRANS FX330 Vortex Flow Meter
Vortex shedding flowmeters are a type of flowmeter available to the process industry for the consistent evaluation of flow rates. These flowmeters measure the volumetric flow rate of media such as steam flowing in pipes, gases, and low viscosity liquids, boasting both versatility and dependability. Since they have no moving parts, they are impervious to the kind of wear turbine or mechanical meters experience.

The SIEMENS SITRANS FX330 vortex flow meter from Siemens takes your steam, gas and liquid flow measurements to a new level with this new, digitally based product. Ideal for HVAC and auxiliary systems, and versatile enough for use in many process applications, the FX330 Vortex flow meter is a reliable and versatile flow system. It combines flow, pressure and temperature monitoring into one user- friendly, two-wire device. You benefit from enhanced energy and process efficiency, greater accuracy and significant cost savings.

Read more about the FX330 vortex flow meter in the embedded document below, or download the "SIEMENS SITRANS FX330 Vortex Flow Meter" brochure in a PDF  here.

Saturday, April 28, 2018

Siemens Regulators, Flow Controllers, Relays, Transducers and Filters

Siemens pneumatic products
Siemens pneumatic products.
Siemens field proven pneumatic regulators and relays fulfill a number of applications in process
control and manufacturing.

Download the full Siemens Pneumatic Product flyer here.

Air Pressure Regulators

Precision pressure regulators control air pressures in applications where precise and dependable regulation is required, such as pneumatic instrument circuits, test stands, production checking fixtures, and industrial air gauges.

I/P Transducers

The model 77 current-to-pneumatic transducer is designed specifically for measuring circuits, converts the output of an electronic measuring device to a pneumatic signal.
The model 771 current-to-pneumatic transducer is designed as a cost-effective valve service transducer. The 771 receives an electronic signal, such as the output of a PID control function, and drives a control valve via the transducer until the control function is satisfied.

Flow Controllers & Relays

The model 62 constant differential relays serve as air-flow controllers maintaining a constant air purge for each setting of an integral needle valve.
The model 63 constant differential relays are used in con- junction with an external needle valve to provide constant volume flow rates of liquids or gases over a continuously adjustable range.
The model 66 amplifying and reducing relays are used to in- crease or decrease control-circuit pressure signals.

Air Filter

The instrument air filter is used to remove dirt, oil, water, and other impurities from an instrument-air supply. The highly efficient instrument-air filter uses the principle of coalescence to trap fine particles in a dripwell.

For more information about Siemens pneumatic products, contact Ives Equipment by visiting https://ivesquipment.com or calling (877) 768-1600

Tuesday, April 10, 2018

Accurate Low-Flow Measurement and High-speed Communication in Supercritical Fluid Extraction and Chromatography Systems

Low-Flow Measurement in Supercritical Fluid Extraction
Low-Flow Measurement in Supercritical Fluid Extraction
A food producer removes caffeine from coffee beans to create a decaffeinated version of its most popular blend. A manufacturer of dietary supplements extracts pesticides and organic solvents from ginseng to ensure a higher-quality end product. A crime laboratory measures the amount of morphine in a blood sample to analyze the usage habits of a drug addict.

These scenarios might not appear to share much in common – after all, what does your favorite morning beverage have to do with forensic drug testing? – but there are important similarities. In each example, a supercritical fluid can be used to carry out precise, efficient, low-toxicity chemical extraction or chromatography.

SITRANS F C MASS 2100  SITRANS FCT010
SITRANS F C MASS 2100
sensor paired with the
SITRANS FCT010
digital transmitter
Regardless of the industry or application, supercritical fluid extraction (SFE) and super- critical fluid chromatography (SFC) require a very specific set of operating conditions. Keeping the environment just right for SFE and SFC requires consistently accurate process measurements – all of which are made possible by incorporating a high-performance Coriolis mass flowmeter designed to measure accurately at low flow rates.

Download this Application Note Here

The Application

An analytical science corporation in the northeastern USA develops instruments for laboratory-based applications across a broad range of industrial, academic and government organizations. Among their specialties are SFE and SFC systems tailored to the specific needs of customers and designed to extract and/or measure a variety of chemical compounds.

Their systems rely on supercritical carbon dioxide (CO2) instead of organic solvents to provide selective sample extractions and/or measurement. CO2 normally behaves as a gas at standard temperature and pressure, or as dry ice when frozen. But when CO2 is held at or above its critical temperature of 31.2 °C (87.8 °F) and critical pressure of 73.8 bar (1071.6 psi), it achieves a super- critical state midway between a gas and a liquid, with liquid-like density and solvating power but a viscosity near zero. Using supercritical CO2 results in shorter completion times and purer extracts – not to mention lower operating costs in comparison to solvent-based systems.

To kick off SFE or SFC, supercritical CO2 is pumped into the system and passes through an integrated Coriolis flowmeter, which measures the incoming mass flow rate, density and temperature. This is a crucial step in both processes, as it’s the prima- ry way to ensure that all CO2 flowing into the system remains in the desired fluid state. Once conditions are verified by the flowmeter, the CO2 helps to extract the compounds (in SFE) or separate and measure them (in SFC).

The Challenge

For more than 15 years, the company has had the option to add a SITRANS F C Coriolis flowmeter from Siemens to their SFE and SFC systems, depending on customer requirements. Their meter of choice consisted of a MASS 2100 sensor in size DI 1.5 (1/16”) and a MASS 6000 transmitter. They initially selected the Siemens solution because of its capability for very accurate measurement – as high as 0.1% of flow rate – under the low-flow conditions required for chemical extraction and measurement with supercritical CO2. The robust construction of the MASS 2100 sensor also offered the reassurance of long-term durability, even in high-pressure environments.

Over time, the company recognized the need to expand into a broader market- place by ensuring that all of their super- critical fluid solutions complied with the RoHS Directive for hazardous materials, which would open the opportunity to sell into the European Union. Having come to appreciate the reliability of the SITRANS F C product line and the responsiveness of Siemens customer support, they turned to Siemens for a digitally based, RoHS-compliant Coriolis flow alternative. That’s when they were introduced to the SITRANS FCT010.

The Solution

Part of the next-generation digital flow platform from Siemens, the FCT010 is a powerful, very compact Coriolis transmitter designed especially for skids and other small-footprint assemblies – a major benefit for the SFE and SFC systems given their limited availability of space.

Another prerequisite for selection was superior performance, and the FCT010 does not disappoint. The transmitter measures with advanced digital signal processing technology, so it produces a stronger signal-to-noise ratio than an analog transmitter for higher accuracy, improved resistance to process noise and a more stable zero point. The FCT010 can also detect and respond to even the smallest changes in flow with a best-in-class 100 Hz update rate.

The company was pleased to learn that the new transmitter could be paired seamlessly with the existing MASS 2100 sensor, which over the course of 15 years has proven to be the ideal low-flow sensor for measuring supercritical CO2. They also liked that the FCT010 is extremely simple to install as a result of its small size and easy-to-use wiring connections.

Ultimately, they placed an order for 100 FCT010 transmitters to be included with new SFE and SFC systems. Now that the enhanced Coriolis flow solutions are in place, the upgraded systems are benefit- ting from faster communication coupled with better process data – all of which adds up to higher-precision, more effi- cient extractions and measurements for laboratories.

With help from the digitally powered SITRANS F C Coriolis flow family, the corporation is equipping manufacturers and researchers with advanced tools that optimize science, commerce and their bottom lines.

For more information, call Ives Equipment at (877) 768-1600 or visit https://ivesequipment.com.

Reprinted with permission from Siemens.

Friday, March 16, 2018

An Exceptional Clamp- on Ultrasonic Flow Measurement Solution for Any Liquid Process

SITRANS FS230 flow system
The SITRANS FS230 digital clamp-on ultrasonic flowmeter is a process-optimizing solution for measuring flow in virtually any liquid application. Designed to provide both exceptional performance and outstanding cost savings, the FS230 is an ideal fit for many industries requiring high-quality liquid flow measurement – including water and wastewater, HVAC and power, food and beverage, pharmaceutical, chemical, mining and pulp and paper.

The SITRANS FS230 flow system consists of a SITRANS FST030 transmitter paired with SITRANS FSS200 clamp-on ultrasonic sensors, which are available in three different models: WideBeam® (High-Precision), Universal and High-Temperature.

Download the PDF from the Ives Equipment web site here, or read the document embedded below.

For more information, contact Ives by calling 877-768-1600 or by visiting https://ivesequipment.com.

Monday, February 26, 2018

SIEMENS SITRANS LR250

SITRANS LR250
The SIEMENS SITRANS LR250 is a great choice for liquid level measurement in storage and process vessels up to 66 feet (20 meters). With a variety of antennas, the LR250 can handle a broad scope of level applications. The SITRANS LR250 flanged and hygienic encapsulated antennas mean corrosive or aggressive materials and hygienic or sanitary requirements are no challenge for this transmitter.

https://ivesequipment.com
877-768-1600


Monday, February 19, 2018

Siemens SIWAREX WT231 and WT241 Weighing Terminals

The SIWAREX WT231 and WT241  are weighing terminals for industrial use. Siemens standard components are installed in a stainless steel enclosure with numerous connection options. This ensures the tried and tested SIWAREX quality as standalone solution and is ideal for container weighers or platform scales.

SIWAREX is the optimum solution wherever strain gauge sensors, such as load cells, force sensors or torque measuring shafts, are used for measuring tasks. The typical applications of SIWAREX  are:
  • Non-automatic scales
  • Fill level monitoring of silos and bunkers
  • Measuring of crane and cable loads
  • Load measuring for industrial lifts and rolling mills
  • Force measuring, container weighers, platform scales and crane scales
SIWAREX offers the following key advantages:
  • Complete solution – no configuration in SIMATIC required
  • Fast and easy commissioning due to intuitive operating concept
  • The stainless steel enclosure permits applications in many diverse environments
  • Integrated connecting terminals for up to 4 load cells
  • Flexible connection to different systems through diverse interfaces
    • - four digital inputs
    • - four digital outputs
    • - one analog output
    • - RS 485 interface and Modbus RTU
  • High resolution of the load cell signal of up to ± 4 million parts
  • Comprehensive diagnostics functions
  • Recovery-point for the simple restoration of all parameters
  • Automatic calibration is possible without the need for calibration weights
  • All diagnostic and error messages as well as all scale parameters in plain text
  • 100-240 VAC supply range

Contact Ives Equipment by calling 877-768-1600 of by visiting https://ivesequipment.com.

Wednesday, January 31, 2018

What Are Industrial Control Systems?

Control systems
Control system diagram (click for larger view).
Control systems are computer-based systems that are used by many infrastructures and industries to monitor and control sensitive processes and physical functions. Typically, control systems collect sensor measurements and operational data from the field, process and display this information, and relay control commands to local or remote equipment. In the electric power industry they can manage and control the transmission and delivery of electric power, for example, by opening and closing circuit breakers and setting thresholds for preventive shutdowns. Employing integrated control systems, the oil and gas industry can control the refining operations on a plant site as well as remotely monitor the pressure and flow of gas pipelines and control the flow and pathways of gas transmission. In water utilities, they can remotely monitor well levels and control the wells’ pumps; monitor flows, tank levels, or pressure in storage tanks; monitor water quality characteristics, such as pH, turbidity, and chlorine residual; and control the addition of chemicals. Control system functions vary from simple to complex; they can be used to simply monitor processes—for example, the environmental conditions in a small office building—or manage most activities in a municipal water system or even a nuclear power plant.

In certain industries such as chemical and power generation, safety systems are typically implemented to mitigate a disastrous event if control and other systems fail. In addition, to guard against both physical attack and system failure, organizations may establish back-up control centers that include uninterruptible power supplies and backup generators.

Control systems
There are two primary types of control systems. Distributed Control Systems (DCS) typically are used within a single processing or generating plant or over a small geographic area. Supervisory Control and Data Acquisition (SCADA) systems typically are used for large, geographically dispersed distribution operations. A utility company may use a DCS to generate power and a SCADA system to distribute it.

Control systemsA control system typically consists of a “master” or central supervisory control and monitoring station consisting of one or more human-machine interfaces where an operator can view status information about the remote sites and issue commands directly to the system. Typically, this station is located at a main site along with application servers and an engineering workstation that is used to configure and troubleshoot the other control system components. The supervisory control and monitoring station is typically connected to local controller stations through a hard- wired network or to remote controller stations through a communications network—which could be the Internet, a public switched telephone network, or a cable or wireless (e.g. radio, microwave, or Wi-Fi) network. Each controller station has a Remote Terminal Unit (RTU), a Programmable Logic Controller (PLC), DCS controller, or other controller that communicates with the supervisory control and monitoring station. The controller stations also include sensors and control equipment that connect directly with the working components of the infrastructure—for example, pipelines, water towers, and power lines. The sensor takes readings from the infrastructure equipment—such as water or pressure levels, electrical voltage or current—and sends a message to the controller. The controller may be programmed to determine a course of action and send a message to the control equipment instructing it what to do—for example, to turn off a valve or dispense a chemical. If the controller is not programmed to determine a course of action, the controller communicates with the supervisory control and monitoring station before sending a command back to the control equipment. The control system also can be programmed to issue alarms back to the operator when certain conditions are detected. Handheld devices, such as personal digital assistants, can be used to locally monitor controller stations. Experts report that technologies in controller stations are becoming more intelligent and automated and communicate with the supervisory central monitoring and control station less frequently, requiring less human intervention.

Contact Ives Equipment with any control systems question of challenge. Reach them by calling (877) 768-1600 or by visiting https://ivesequipment.com.

Monday, January 22, 2018

Measuring Level of Highly Concentrated Sulfuric Acid

SITRANS LR250
SITRANS LR250
For fairly obvious reasons a US chemical company was having a very difficult time finding a process level instrument for a tank containing 93% sulfuric acid. Not many materials can stand up to the corrosive nature of even dilute sulfuric acid, not to mention the concentrated form. Level sensors with special wetted parts would only last a few months and the transmitters would have to be replaced on a regular basis. Downtime was very high and the maintenance was very costly.

Recommendation

SIEMENS recommended the SITRANS LR250 Radar PVDF for the application. The SITRANS LR250 with threaded PVDF antenna is a 2-wire, 25 GHz pulse radar level transmitter for continuous monitoring of liquids and slurries in storage and process vessels including corrosives or aggressive materials.
SITRANS LR250

SITRANS LR250After having the unit installed for a few months, the unit was taken out and inspected. Signal profiles were taken and compared to the signal profiles when the unit was first installed. These profiles demonstrated strong performance by the SITRANS LR250 in that the acid level was being tracked reliably and the inspection of the PVDF encapsulated horn antenna showed no compatibility issues.

Conclusion

The Siemens SITRANS LR250 transmitter with its PVDF encapsulated horn antenna has proven to be the proper instrument for sulfuric acid applications. It provides a lower cost alternative to other instruments requiring exotic and expensive metal alloys. After being in operation for over three years, it has demonstrated a significantly increased life span.

Contact Ives Equipment for more information on the Siemens SITRANS LR250.

Saturday, December 23, 2017

SIEMENS Process Instrumentation by Ives Equipment

Siemens brings you an innovative portfolio of process instruments for flow, level, pressure and temperature measurement, as well as a wide range of continuous weighing products. Pneumatic valve positioners, process controllers and recorders, and process protection devices complete the package.
  • Belt Scales and Weighfeeders
  • Communications and Software
  • Flow Measurement
  • Level Measurement
  • Pneumatic Regulators and Relays
  • Pressure Measurement
  • Process Controllers and Recorders
  • Process Protection
  • Remote Displays
  • Temperature Measurement
  • Valve Positioners and Accessories
https://www.ivesequipment.com
877-768-1600

Saturday, December 16, 2017

Increasing Safety in Chemical Waste Water Treatment Plant

Waste water treatment and location of the measurement
Waste water treatment and location of the measurement.
Purified Terephthalic Acid (PTA) is the preferred raw material for the most common plastic products of daily life. The PTA production process generates various waste water streams which are high in organic content.

Purification of Process Waste Water

In the waste water treatment plant, the water treatment starts with aeration. The last step is an anaerobic bio reactor where the treatment is done in a controlled atmosphere. Micro organisms purify the water and produce biogas. Biogas roughly consists of 60 % methane and 40 % Carbon dioxide. This biogas is compressed and used as a fuel to reduce the net energy supply.

Although production or intrusion of oxygen into the reactors or pipes is highly unlikely, safety systems are installed. In case air enters unexpectedly into the process this first may result in a non-supporting atmosphere for the microbes and in the worst case the gas mixture may lead to an explosion.

Safety Guaranteed Using Siemens LDS 6

To ensure that oxygen never exceeds the maximum accepted concentration, the customer chose an in-situ measurement with the Siemens Laser Diode Spectrometer LDS 6. LDS 6 performs a continuous monitoring of the oxygen concentration in the biogas produced.
Measurement path and the two LDS 6 sensor heads
Measurement path and the
two LDS 6 sensor heads.

The response of the system is in three levels:
  1. In case the oxygen level exceeds 5 % an alarm is triggered.
  2. The threshold of 7 % causes an automatic nitrogen injection and the closure of a valve preventing the gas mixture from entering into the compressor.
  3. When the limit of 9 % is exceeded, this automatically shuts down the compressor.
The in-situ measurement leads to a fast and reliable measurement.

The stability and availability of the LDS 6 system is ensured by the integrated reference cell which provides a lifetime calibration. To be absolutely on the safe side, the customer operates a weekly safety check which involves opening a valve that allows a controlled air intake into the LDS 6 sensor heads. As the sensor heads are physically separated from the process by process windows, no oxygen may enter into the process. The reaction of the system shows in any of these tests once more the reliability of the measurement method used.

For more information about this application, or for any analytical instrument requirement, contact Ives Equipment by calling (877) 768-1600 or visiting https://www.ivesequipment.com.

Reprinted with permission from Siemens Case Study.

Monday, October 23, 2017

Siemens Ultrasonic Level - How it Works

Ultrasonic level measurement
Ultrasonic level measurement is a highly cost-effective solution for short- and long-range measurement, even under difficult environmental conditions such as vibrations and dust. Ultrasonic level measurement is a non-contacting technology used in numerous industrial areas to monitor and control the level of liquids, slurries and solids.

Watch the video below for a better understanding of how this technology works.



For more information on Siemens ultrasonic level measurement, contact Ives Equipment by calling (877) 768-1600 or visiting http://www.ivesequipment.com.