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There are several technology options in precision measurement devices but the two that have frequently been compared against each other are thermal mass flow and differential pressure mass flow. These technologies are widely used in high purity applications including semiconductor, analytical and medical. Manufacturers in these industries tend to focus on one technology or both. This white paper discusses the importance of thermal mass flow and laminar flow differential pressure mass flow instruments, the pros and cons of each, and a guide to help direct consumers toward the product that best suits their needs.
Thermal mass flow system
Figure 1 below shows a typical diagram of a thermal mass flow system. The temperature sensors used to measure the mass flow are wrapped around a stainless-steel flow sensor tube. Temperature measurements are taken at both heat sensors, heater 1 and heater 2 (see diagram). With no flow, the heat distribution along the sensor tube is balanced and the temperature difference between the two sensors is zero indicating no mass flow.
As fluid flow increases through the instrument, a portion of the flow is forced through the sensor tube by the pressure drop caused by the laminar flow element. Within the sensor itself, the temperature profile (heat distribution) moves downstream. The upstream sensor is cooled by the fresh gas entering the sensor, the gas carries heat from the upstream sensor element (heater 1) towards the downstream sensor element (heater 2). The increased flow will result in a greater temperature differential as the center of the heat distribution moves downstream. These distinct heat profiles are measured as temperatures at the sensors. The magnitude of the shift is proportional to the mass flow within the sensor.
The heat profiles are measured as changes in resistance with the individual windings wired across a wheathouse bridge to acquire a sensitive differential temperature measurement. The bridge's analog output is measured digitally and scaled to the 32,000-count digital output signal. In this way, the laminar flow element is used as a ranging element allowing gas and flow range flexibility so a unit can be scaled for each specific application. The laminar flow element device reduces the flow velocity to a laminar flow condition (Reynolds number <2000) by splitting the flow up into many equivalent parallel flow channels. The total number of channels in the laminar flow element determines the total gas mass flow through the metering section.
Differential pressure
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The volumetric flow rate is calculated from this drop and the properties of the gas flowing through the unit. To calculate mass flow, the volumetric flow is converted to mass flow using gas properties and independent absolute pressure measurement, and an absolute temperature measurement. Once the three measurements are made and the analog signals are converted into digital signals the processor looks up the gas properties and applies them to the readings acquired to calculate the mass flow rate. The pressure-based mass flow device must accurately measure and convert 2 additional fluid properties (absolute pressure and absolute temperature) and maintain the metrology of 3 separate measurements over time. The ability to read the temperature, the common-mode pressure, the volumetric flow rate, and the mass flow rate can be beneficial in certain applications
Comparison of the two technologies Accuracy/warm-up time
Thermal mass flow devices using a bypass tube typically need a 30-minute warm-up time to achieve the full stated accuracy of ±0.5% of reading plus ±0.1% of full scale but the unit has relatively high accuracy prior to the 30-minute warmup being complete. Typically, the device can achieve an accuracy of ±2% of the reading almost immediately. Figure 3 shows the typical error for a thermal mass flow controller over time at room temperature, from a cold start-up. The graph shows that within 5.5 minutes the accuracy achieved by the unit is within the ±0.5% of the reading value. This is significantly shorter than the maximum recommended warm-up time of 30 minutes.
Compare this to a pressure-based laminar flowmeter that requires almost no warmup time but can only produce accuracies to ±0.8% reading plus ±0.2% of full scale. If the application calls for instantaneous full accuracy in seconds the pressure mass flow measuring device may be the better choice but if long term accuracy is the main objective, thermal mass flow is the best choice, especially if measurements can wait a few minutes.
Typically thermal mass flow devices are produced with a high level of particulate and chemical cleanliness. They are suitable for high purity applications including semiconductor, analytical, and medical applications. A material like 316L stainless steel or equivalent can handle many corrosive gases; this increases the cost but also ensures the product will function well over its working life. When purchasing a device look for the materials of construction (wetted parts) and compare their chemical compatibility to the gases they will be in contact with. Some thermal mass flow devices that use a bypass system offers a unique way of handling corrosive materials. The heat sensors are on the outside of the stainless-steel sensory tube (see figure 1), which provides a barrier between the sensor and the material being measured. Pressure differential measuring devices frequently have RTV-coated silicon-based pressure sensors inside the wetted flow path, which makes them very susceptible to corrosion, hydrogen embrittlement, or introduce unwanted chemistry to the flow stream. This can result in inaccurate readings or potential nonfunctioning parts of the device. If the application calls for the measuring of corrosive gases, look for the wetted materials to be a 316L stainless steel or equivalent and a thermal mass flow devices that use the thermal bypass system; this device is better equipped to handle corrosive gases and provide a cleaner output stream than a pressure-based mass flow device. Some differential pressure devices are available with stainless steel wetted materials to allow for compatibility with corrosive gases, but upgrading to that configuration can add significant cost. Pressure based mass flow devices compromise on materials for speed and sensitivity; this extra speed and sensitivity is desired in certain applications but may not be suitable for analytical and high purity applications flow devices.
Key takeaways
With the above breakdowns the biggest takeaways are:
When high accuracy, high-pressure capability, and compatibility with corrosive gases are the primary needs of your flow measure, thermal mass flow devices are the best solution. When it is critical that your device warmup time in seconds and accuracy and pressure is less of a concern, pressure mass flow devices are the better choice. This can vary with manufacturers, so be sure to do research and speak with the manufacturer’s application engineers.
Parker Precision Fluidics offers a wide variety of thermal mass flow meters and controllers for all your application needs. The new X-Flow™ is a new simplified mass flow controller for your instrument, lab, or process needs. X-Flow™ delivers fast, repeatable, and reliable high accuracy flow control through constant thermal by-pass mass measurement technology coupled with digital communication protocols. X-Flow™ is calibrated to your specific conditions and includes asset calibration management software. Other features include:
With over 30 years of experience with the mass flow technology, Parker Precision Fluidics offers guaranteed high quality, reputable products and market-driven innovation, helping our customers improve equipment accuracy and repeatability. Contact us today at ppfinfo@parker.com or call 603-595-1500 to speak to an expert applications engineer about your fluidic circuit needs.
This article was contributed by David P. Sheffield, senior product engineer at Parker Precision Fluidics. David has been a mechanical engineer for almost 30 years and has 10 years of experience in mass flow and mechanical flow measurement technology.
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Developing and introducing a new clinical diagnostic instrument or medical device is a challenging accomplishment that often takes years. One of the final steps in bringing life-saving, life-improving equipment to the public is US FDA listing and CE marking processes that ensure the safety of these devices as well as their compliance to well-established global standards. Trouble at this stage of the project can lead to frustrating and costly delays for medical device manufacturers. Examples of complications that may be found at this stage are electrical emissions or immunity issues that might only become apparent when all the pieces come together for final testing.
This blog explores standards required for the safety and performance of medical electrical equipment and discusses the benefits of choosing components, such as pumps, that are IEC-60601 compliant.
International Electrotechnical Commission
The International Electrotechnical Commission (IEC) is an organization that publishes international standards for all electrical, electronic, and other related technologies. In 1977, IEC published the IEC 60601 and it is continually updated as technology develops and improvements are made. Today, IEC 60601 is the international standard for the safety and performance of medical electrical equipment in most major countries. This standard is very important in that it provides compliance with US-FDA, Canada-Health Canada, and EEU Medical Device Directive 2007/47/EC regulations. IEC 60601 is currently in its 3rd revision (60601-1-11:2015) and certification can be obtained through an OSHA-approved testing laboratory.
Across the globe, medical regulating bodies, such as the FDA, EEU, and Canada-Health Canada, are responsible for ensuring the efficacy of the devices being designed and manufactured by OEMs. These regulating bodies have widely accepted the IEC-60601 standard as a benchmark for the basic safety and essential performance of medical electrical equipment for commercialization.
The 60601-1-11:2015 acts as risk management for the product design, manufacture, and intended use by requiring safety by design with protective measures in the medical device and calling for instructions or safety labeling. This standard provides customers with the assurance that the product is safe and reliable.
Products that fall under IEC-60601
There are two types of products that fall under IEC-60601: Medical electrical equipment and medical electrical systems. Medical electrical equipment is defined as:
“Equipment, provided with not more than one connection to a particular supply main and intended to diagnose, treat, or monitor the patient under medical supervision and which makes physical or electrical contact with the patient and/or transfers energy to or from the patient and/or detects such energy transfer to or from the patient”.
— IEC 60601-1 subclause 2.2.15
A medical electrical system is defined as:
“Combination, as specified by its manufacturer, of items of equipment, at least one of which is Medical Equipment to be inter-connected by functional connection by use of a Multiple Socket-Outlet”.
— Nicholas Abbondante, chief engineer, EMC Testing for medical devices, Intertek Group, plc.
Why choose components that meet compliance standards?
When selecting a component for your device, it is important to research the required standards. The IEC-60601-1-2 is the standard mandating that EMC testing is performed on any electronic medical device, which ensures that a device meets necessary emissions and immunity standards by the FDA to sell the device.
For medical device manufacturers, partnering with a supplier that offers compliant components, improves efficiency and reduces costs. Requesting a component manufacturer to obtain the specific compliance standards can result in expensive delays in the project scheduling process.
Miniature pumps, for example, are critical electromechanical components frequently used in medical devices. Pumps needed in today’s medical equipment range from simple on/off devices that are used for a very short time frame to dynamic control devices that need to last several years of continuous operation.
The new BTX-Connect diaphragm pump from Parker Precision Fluidics has been tested to IEC-60601-1-2 standards to provide a seamless approval process for the completed device.
Specifically, the BTX-Connect miniature diaphragm pump was tested and passed the following standards and tests:
The BTX pump uses brushless DC motor technology for maximum reliability and control. The controller offers the most dynamic control range and communication capability available. This electrical component of the pump is subject to electromagnetic emissions and immunity, the very same as the medical equipment system of which it becomes a part. Other features include:
This blog was contributed by Chris Osborne, application engineer, Parker Precision Fluidics. 
Highways, city streets and parking lots lay bare. Rush hour and stop-and-go have come to a virtual gridlock. For tens of millions of people across the U.S., arriving to work on time is a whole lot easier and less stressful, except for those days when a detour is necessary to get around the unexpected pileup of kid’s toys blocking the exit to your home office.
Daily life has changed: how we interact with family and friends, how we learn, how we shop and how we work are different. They involve putting some space between others and us. Businesses around the world have transitioned from large, robust facilities to the friendly confines of the home office. While temporary at first, companies in sectors such as technology and e-commerce may allow working remote to become permanent.
Data centers put to the test
Roadways and byways may be desolate, but the traffic is moving fast across data centers. These coliseums of information and data are being inundated with massive surges in internet usage, with increase estimates ranging between 50 and 70 percent, as everyday life transitions to home life. The geographic shift of internet demand from city centers to neighborhoods is validated by major cities across the globe, from San Francisco to Sydney, revealing the change in internet traffic between January and March 2020.
Data has never been more important than right now. It’s the lifeblood of today’s first responders and medical professionals, businesses, education, entertainment and nearly every industry on the face of this planet. Everyone, and we do mean everyone, is relying on the internet and communication networks to continue business as normal under the most unique circumstances. The COVID-19 global pandemic has highlighted the importance of data centers and the ability to take on this sudden rush of information.
Decades of planning and preparation
So, how have data centers been able to handle such a spike in internet traffic? You have to go back nearly 60 years to find the answer. In the early 1960s at the height of the Cold War, the only network people knew about was the telephone system. It was powerful, but in the same breath, expensive, fragile and uncompromising. Researchers began working on a new network – one that would be flexible and handle different types of communication, including data, voice and video. The data center was born.
Over time, as networks grew, so too did data centers to accommodate new demands. ARPANET, office and home computers and the internet came in increments and at each digital revolution, the network became more reliable to manage the increase in data capacity. And so 2020 happened, data centers across the world weren’t shook, but prepared for this moment.
Data centers staying cool under pressure
Capacity management is critical to all fundamentals of any organization. Data centers are performing efficiently and more effectively with no constraints. This level of operation comes on the heels of supply chain disruptions, reduced staffing and social distancing guidelines.
The infrastructure of data centers has played a vital role in keeping cool under intense pressure. Traditional air-based cooling systems have been replaced with innovative liquid cooling capabilities to reduce energy consumption and meet power demands. Plus, address limitations of water usage that can greatly affect the ability to utilize evaporate cooling and cooling towers in order to carry off heat generated through a facility.
The future of data centers during the COVID-19 pandemic
Fluid connections are critical in network communications and liquid cooling systems; both go hand-in-hand and will play vital roles over the course of this pandemic. In terms of infrastructure, liquid cooling quick disconnects feature a state-of-the-art internal design and flush-face valves, which reduces pressure drop and virtually eliminates drips during connection and disconnection. This capability means investments in reliable connections pay big dividends in the short and long-term future.
The pandemic has shown us that connectivity is a must. As more aspects of our daily lives transition to home, from work and school to shopping and entertainment, data centers will continue to adjust to this increase demand for connectivity and capacity.
This article contributed by Todd Lambert, market sales manager, Parker Hannifin Corporation's Quick Coupling Division.
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When you need to have a custom hydraulic hose replaced, you need assurance that the hose assembly you ordered is exactly what you need. Hose assemblies are not as simple as they seem, installing an inferior hose can lead to a number of future problems with your equipment.
Parker has the largest selection of hydraulic hoses, hydraulic hose fittings and hose configurations to efficiently meet all our customers' needs. All of our products are manufactured to the highest standard that we take pride in. When you buy a Parker hose, you are getting a Parker designed hydraulic hose made worldwide within our own factories assembled by Parker employees.
There is no easier way of knowing that you are getting the replacement hose assembly you need than relying on our Parker Tracking System (PTS). PTS is Parker’s innovative tagging and asset management system that lets you record, manage and retrieve all your critical asset information.
PTS ID tags have long increased the speed and accuracy of your next hydraulic hose replacement. Using Parker’s mobile app equipment, owners can scan the PTS ID to quickly and more easily learn about their hose assembly. Onsite hydraulic hose replacement at Parker Stores and Parker distributors can ensure that the replacement hose assembly is right for you.
Hydraulic hose replacement just got easier and more convenient
Parker hydraulic hose assemblies with PTS ID numbers can now be ordered online from parker.com and delivered to you. Your custom hydraulic hose assembly will be fulfilled by a Parker distributor.
Parker’s qualified network of distributors are trained professionals when it comes to hydraulic hose assemblies, which serves as an extra layer of confidence, that you are ordering the hose assembly replacement you need. The steps to order your online hose assembly replacement are easy.
Step 1. Enter your PTIS ID number
Your PTS ID number is the only configuration specification you need. With this number, you do not need to enter custom specifications, and worry that you got them right, the PTS ID number has it for you. To get started enter your PTS ID in the product search bar on www.parker.com.
There are over 15 million PTS ID tagged hose assemblies. When you enter your PTS ID number in the product search bar on www.parker.com, our ordering system will automatically match your PTS ID number to an orderable hydraulic hose assembly.
Step 3. Detail about your hose replacement with the price
The fulfillment distributor can now automatically see the components that comprised the bill of materials for your hydraulic hose assembly. You will be confident that the hose is engineered with the latest Parker product innovations. The price for your hose assembly will be outlined for you as well.
Step 4. Buy now to complete the ordering process
Simply click the buy now button to complete your transaction. You will need to provide your shipping information and credit card details to complete the order. Any questions about your order should be directed to the fulfilling distributor who will be clearly outlined in our order confirmation details.
Now, that is easy and convenient follow these four steps to order your PTS ID hose assembly online from www.parker.com, and it will be shipped directly to your location.
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A virtual shift is happening as we speak across the world. How we communicate, how we consume goods and services, and how we work have all changed. Now more than ever, technology is being relied on to establish some form of normalcy in this new way of life.
In manufacturing, technologies and smart solutions have been integral in production and operations management for quite a while as the industry has navigated through the digital transformation. The Internet of Things (IoT) gave rise to cloud computing, universal wireless connectivity, artificial intelligence (AI), machine learning (ML), big data and more. This level of technology and information provides an organization with the ability to operate their plant floor as efficiently and effectively as possible.
Remote work for industrial organizationsThe workplace will look much different in the coming weeks and months. Less personnel onsite and more working remotely as social distancing policies are implemented. As industries scramble to adapt to this new work environment, manufacturers already have the upper hand, utilizing existing resources to continue operations with minimal disruption. The demand will be there for increased remote diagnostic management, AI-based insights, and real-time data to perform assignments that otherwise would be conducted in-person. A reduced workforce onsite will mean safer working conditions for essential employees and a boost in performance with fewer distractions.
How does a manufacturer maximize productivity and meet on-time delivery with a minimal workforce capacity? The answer is continuous condition monitoring. This tool in predictive maintenance allows machines on the plant floor to be monitored and diagnosed in real time, identifying problems and inefficiencies before becoming serious issues. Plus, observing conditions and equipment parameters can be conducted without ever stepping foot onto the plant floor. All of the data from machinery is collected and stored in the cloud for a more rapid flow of information.
Voice of the Machine
Voice of the Machine™ Cloud is Parker’s cloud-based continuous condition monitoring solution. When paired with SensoNODE™ Sensors, users can monitor a plant floor remotely without interrupting production. Data is accurate and leveraged to make decisions effectively about the status of machines. This level of reliable information is paramount to reduce risk, maintenance and unplanned downtime. Additionally, users learn more about their machinery that can be applied to operational and performance improvements. The data processed is secure and readily available on any computer.
It’s going to be crucial to perform without being present on the floor. The demand will be for a continuous condition monitoring solution that can satisfy the needs of manufacturers and maintenance teams while meeting government mandates.
Parker has unveiled new updates to its Voice of the Machine Cloud platform to build upon its ease of use and functionality. For users, enhancements provide the ability to monitor machines and performance to identify issues, reduce downtime and improve efficiencies seamlessly.
Voice of the Machine cloud updates:
Multiple dashboard templates with 7+ widgets
With a dashboard template, you know precisely how well machines are performing with real-time health metrics presented clearly and concisely. Voice of the Machine Cloud templates are customizable, allowing users the ability to track specific parameters and conditions.
Complex organizational hierarchyOrganization is always important to stay current on what’s happening on the plant floor. No two factories or machines are the same. Complex organizational hierarchy provides data, assets and facilities to be organized in a manner that makes the most sense to the business and its customers.
User, location and organization notification delivery schedule “blackouts”Establish accounts for varying use-cases to maintain meaningful notifications and avoid being inundated with nonessential machine alerts.
Custom units of measure for organization, location or userCreate a unit of measurement that is not a traditional, customary unit. Visualize data and receive alerts in a customized unit of measure for the organization, location or user that’s been defined.
5 user roles aligned with job functionsVoice of the Machine Cloud has expanded user permissions to accommodate a distribution sales channel relationship with customers. For the user, this increase in job functionality means the ability to perform duties effectively while being remote.
Detailed organization, location and assetsHave more control of records and management of capital assets. This feature provides the opportunity to store metadata to track performance metrics based on the organization, location and machinery.
Threshold alerts with escalation and event logsNew functionality within the software allows a user to set up escalation notifications. If an alert goes unresolved after a predetermined amount of minutes, notifications are sent via email and/or text message to ensure the issue is addressed promptly.
Calculated signalsUser-defined calculations based on measured data can be implemented by entering a calculation-rule in Voice of the Machine Cloud. If historic trends identify a reoccurring theme, set thresholds to match the conditions for immediate action.
SummaryVirtual work is a new reality that will fundamentally change the work environment in manufacturing. Factories and plant floors have already been transitioning through IoT and digital tools to ensure infrastructure can be managed remotely. As a leader in cloud-based condition monitoring solutions, Parker is helping manufacturers make the digital transformation as seamless as possible.
Learn more about Parker’s Voice of the Machine software solution.
Article contributed by Marc Williams, IoT project lead, Parker Hannifin Corporation
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OSHA’s Crystalline Silica Rule for Construction, effective since October 23, 2017, requires employers to take steps to protect workers from exposure to respirable crystalline silica. The final rule lowers the permissible exposure limit for respirable crystalline silica for all industries to 50 micrograms per cubic meter of air averaged during an 8-hour shift.
Risk of hefty fines
In addition to the health risks, failure to comply with the new regulations could mean a minimum fine of $5,000 per offense, and fines can increase to $70,000 in the United States. Consecutive days of non-compliance for certain guidelines warrants anywhere up to $7,000 per day. Subcontractors are typically penalized similarly to primary contractors under the same safety standards.
Despite the threat of these hefty fines, OSHA has still recorded 117 violations in the U.S. so far since these more stringent penalties came into play. Of the noted violations, approximately 80 percent were considered “serious”. The most common violations were for failing to conduct an exposure assessment for respirable silica, a lack of suitable equipment and not possessing or being able to show evidence of a written exposure control plan. The largest fine to date was to a Virginia based company totaling over $304,000 from five violations.
Silicosis diagnoses have declined substantially over the last several decades, but critical cases are still being detected today. The most prominent of these are found in the engineered stone industry, based largely in California, Colorado, Texas and Washington.
Creating a safer workplace
Proper education and training play a key role in protecting workers from the dangers of silica dust. Jobsites can be improved if awareness around the most practical methods to avoid over-exposure is present. Employers are required to train employees and properly document that they are educated on the hazards of their work environment and how to prevent exposure.
The following hazards are required to be addressed:
If found in violation, this is listed as a serious offense.
OSHA recommends the following:
Hammering home the meaning of purpose
At Parker, we understand the concerns facing those in the construction industry. We know that safety is your number one priority. The health concerns that are associated with the release of silica dust during jackhammer operation is an ongoing worry. Silica becomes airborne during sandblasting, rock cutting and several other construction practices. Customary brick and cement harbor between 20 to 30 percent silica, so restricting these particles from becoming airborne is vital to avoiding ingestion.
Parker’s 7084 Twinhammer Hose is a chemically bonded dual air/water hose assembly made to deliver an air compressor hose and a water pump hose to jackhammers and is compliant with OSHA RCS standards to suppress silica dust when in use up to 212°F and 300 psi.
When used with our Jackhammer Hose Spray Kit it is an OSHA-compliant wet method hose system for silica dust suppression.
Collaborating to find a solution
Parker team members around the world innovate to develop custom solutions that lead to a better tomorrow—a smarter, safer and more sustainable tomorrow. And that means working closely with customers across many different industries to help solve their own unique challenges.
Parker Industrial Hose Specialist, Carrie Patterson teamed up with our distributor, Ritter Tech in Zelienople, PA to assist a construction company that uses jackhammers for bridge demolition projects. With the silica dust OSHA regulation, they needed to implement a solution to suppress dust when working on the bridges.
They tried using a garden hose for dust suppression but realized the high flow of water was not working and allowing excess water to drip into rivers below, causing the EPA to get involved. The demo projects were becoming a hassle and they needed a simple and efficient way to meet the OSHA regulation. Because of the fine mist that is generated with Parker’s spray kit, Twinhammer Hose was the solid solution to suppress dust and prevent excess water from dripping into the rivers below the bridge construction.
Parker and Ritter Tech worked with the company safety director and after testing the Twinhammer hoses on their jackhammers, the construction company put it to use with their upcoming bridge project.
“It worked so well, they implemented Twinhammer Hose into three of their other facilities to ensure they were OSHA compliant”
Joe Jelinek, division sales manager with Ritter Tech, Parker Authorized Distributor
Learn more about Twinhammer Hose. Both the solution itself and Parker's leading role in proactively addressing the dangers of RCS dust demonstrate the power of Purpose in Action. We will continue to seek out the engineering challenges with broad implications in the real world—and welcome the next opportunity to create a better, safer tomorrow.
This article was contributed by Carrie Patterson, industrial hose specialist, Parker Hannifin and Joe Jelinik, division sales manager, Ritter Tech
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Predictive maintenance is essential to maintaining the value and the long-term, reliable function of expensive machinery and systems. This can be easier said than done. Systems, equipment and machinery in industry and mobile hydraulics often have complex designs due to increasing requirements, and error analysis can quickly become extremely costly and time-consuming. Parker SensoControl has the solution to these issues, with its broad range of sensors, measurement connections and different measurement devices.
Despite the hard work equipment can do, the inner electronics and components can be rendered useless by pressure spikes, flow surges and temperature changes. Such things can go unnoticed by operators who monitor their equipment and systems with conventional mechanical measuring devices. Being able to effectively monitor equipment systems and diagnose issues before they become problems can help alleviate costly downtime and prevent damage to expensive equipment. The SensoControl products give end users an edge in downtime prevention with a full complement of condition monitoring and diagnostic equipment that is ideal for individual components or entire systems.
Effectively monitor equipment systems
The new Parker Service Master CONNECT fulfills the demand for faster, simpler and more precise diagnostics. Quickly and easily recording measurement data, the Parker Service Master CONNECT is a diagnostic device used to measure pressure, temperature, flow rate, speed and frequency that differs from other measurement devices in many ways. At first glance, its compact design and 7” anti-glare display make it very similar to a tablet. Its lighting and high resolution allow users to read measurement data without errors, even in dark working environments. At a weight by less than 2 kg, it is also easy to handle.
Rugged design: The measurement device is equipped with a rugged, oil-resistant, cover and designed in accordance with protection code IP65. This means the CONNECT is securely protected against impacts, moisture, and dirt, making it a great choice for measurement tasks in rough conditions, such as those involved in mobile hydraulics.
Reliable operation: Added tactile keys ensure the measurement device is easy to operate, even under difficult conditions such as vibrations and shocks. The 3 mm thick touch screen can even be operated while wearing gloves and responds quickly and reliably to finger movements. Icons on the control panel are clearly designed to guide users intuitively through different functions.
What kind of technology does The Parker Service Master CONNECT offer under its rugged shell? What makes this device such a useful tool for users?
Customer-specific equipment solutions: The Parker SensoControl integrates individually exchangeable measurement modules, allowing the device to be used in almost any testing situation and offering the user outstanding flexibility. The “CONNECT” also has variable measurement inputs, broadening the “playing field” for many different tests: Parker analog and CAN sensors with automatic sensor detection, analog sensors, SAEJ-1939, CANopen, frequency, and digital inputs and outputs.
Multiple data recording methods: Data from up to 100 different channels is recorded automatically, collected in a large, internal measurement value memory, and can then be analyzed immediately on a PC using SensoWin analytic software. Multiple data recording methods can be used, from start/stop, data logger with circular buffer, point measurement via trigger and trigger logic, to fast measurement. USB interfaces allow the device to be connected to other components, such as bulk storage.
Unique ways to present recorded measurement data: Users can display either numerically or using bar graphs, indicators, or curves. If necessary, screenshots can be made and processed at the touch of a button. Another benefit of the “CONNECT” is its intuitive user interface, which can be expanded with customer-specific tools via software applications.
Remote monitoring and operation: Supported by a LAN, WLAN or USB interface. Firmware can be easily updated via USB. The new CONNECT measurement device is multifunctional and can process not only measurement data, but also templates and media data such as instructions, service schedules, etc.
Flexible and versatile: The Parker Service Master CONNECT has exchangeable input modules. In addition to a CAN module with two separate CAN Bus networks, the CONNECT also offers 2 analog input modules (with and without galvanic isolation) to connect Parker sensors with sensor detection, as well as the option of connecting external sensors – including with high-speed functions.
ConclusionThe concept of The Parker Service Master CONNECT makes it more like a PC than a measurement device. It can be used to store not only measured data, but also project templates, images, maintenance plans, and schematic diagrams. Missing data can be stored on the CONNECT from the company network. This saves service technicians time and improves communication between colleagues, since all key machinery data is stored on the CONNECT.
The concept of The Parker Service Master CONNECT makes it more like a PC than a measurement device. It can be used to store not only measured data, but also project templates, images, maintenance plans and schematic diagrams. Missing data can be stored on the CONNECT from the company network. This saves service technicians time and improves communication between colleagues, since all key machinery data is stored on the CONNECT.
For more information, contact us.
This article was contributed by Georg Kälble, manager marketing service, Parker Hannifin Corporation's High Pressure Connectors Europe.
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OEMs that produce machinery for such industries as agriculture, oil and gas and construction invest heavily in the development of products that are rugged, reliable and easy to maintain. These characteristics are most often the cornerstone of a manufacturer’s most valuable asset—brand image. Additionally, these qualitative factors are key in the decision by customers to select one brand over another. With productivity and revenue on the line, equipment owners expect peak performance from even the most vulnerable components—components such as hydraulic connections.
Any equipment’s hydraulic system is, by nature, highly complex due to numerous component parts and multiple connection points. Complex systems need to be designed for users to easily diagnose and address problems. The advent of the multi-coupler has greatly simplified the connection process by reducing the complexity of multiple hydraulic lines into one, simple access point. Not only is the multi-coupler more streamlined and efficient, it also offers a clean connection, which means no leaks or spills. This way, Parker is helping operators minimize their environmental footprint by preventing leakage and increasing efficiency.
Meeting the needs of the agricultural industry
Our engineers’ innovative designs have long served the agriculture industry with its first single-point connection to mate both hydraulic and electrical lines on tractor implements and harvesters. Today, even routine procedures such as removing an implement from a tractor and replacing it with another (removing a loader prior to mowing) require a number of vital disconnections and reconnections to take place. In the case of the hydraulics, where there are multiple lines to manage, there are always risks such as an inaccurate connection, leakage or contamination—all of which can lead to downtime, safety issues and mechanical failure. The Multi-Coupling System has brought a whole new level of efficiency to farmers around the world.
At Parker, we’ve developed an innovative system that provides a streamlined and efficient connection that combines multiple couplings into a single connection point for easier connection and disconnection. With a simple, single motion using an ergonomic lever, an operator can easily connect and disconnect multiple hydraulic lines simultaneously—no additional tools needed. Whether making a routine implement change or an in-field repair, our Multi-Coupling system not only saves valuable time, it makes the entire procedure safer.
Engineered for intuitive operation, the multi-coupling reduces human error and provides mistake-proof connections that prevent crossed hydraulic lines and assure consistent proper connections. The inconvenience of leakage during disconnection/reconnection is virtually eliminated—protecting both the operator and the environment. When in operation, the multi-coupling features a safety lock keeping the connection secure.
Another Parker Multi-Couplings advantage? This simplified connection process eliminates in-depth hydraulic system knowledge improves “ease of use” for the operator—key selling points for any manufacturer.
Pro features for personal-use equipmentOEMs producing equipment for the subcompact tractor market have also turned to Parker for high-quality multi-couplings. By partnering with Parker, manufacturers are able to deliver pro-level, single-point connection advantages to personal-use equipment users, bringing a new level of reliability, efficiency and safety to the small acreage environment.
"Equipment operators should be able to use these machines without having to invest the time into understanding hydraulic circuits and the intricacies of how it all works. A multi-coupling enables the person to simply plug it in, operate a single lever and they're done."
Paul Lemay, engineering manager, Quick Coupling Division, Parker Hannifin
Custom-designed to meet the needs of OEMs
With equipment technology and functionality constantly evolving, we are uniquely positioned to help manufacturers meet the challenges that these innovations may present.
Our Multi-Couplings are designed and produced to meet the exact needs of OEMs including multiple hydraulic lines, size options, and special accommodations for electrical connectors. Additional options include larger couplings sizes, system operating pressures up to 4,000 psi, as well as locking and dust protection options.
Our engineering team works with each manufacturer to enhance equipment functionality, bringing value to both the OEM and the end customer.
Our six-step comprehensive and collaborative process ensures quick development and helps to accelerate the speed to market for equipment manufacturers:
Partnering with Parker’s Quick Coupling Division gives OEMs access to the largest manufacturer of hydraulic and pneumatic quick couplings. We provide innovative solutions to many of the most recognizable brands. Our state-of-the-art assembly cells feature new technologies and automated mistake-proofing systems with integrated in-line leak testing. Comprehensive assessments and industry-leading manufacturing capabilities ensure a consistently reliable product delivered to each customer. For more information on the depth and breadth of quick couplings available, visit our website.
Article contributed by Lori Aus, senior product sales manager, Quick Coupling Division, Parker Hannifin.
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The heat is on in the data center industry as engineers and managers develop and operate increasingly powerful information technology equipment and the estimated 2.5 quintillion bytes of data created every day.
Such exponential growth has obvious pluses for data centers. But it also presents new challenges, not the least of which is dealing with the soaring temperatures all of the new technologies and processes generate.
Long considered the best choice for data centers’ thermal management, traditional air-based cooling systems are falling behind in the effort to keep data centers operating efficiently. Air-cooled data centers face rising energy costs as they labor to sustain optimum operating temperatures as power demands increase. Air-cooled centers also face the reality of constraints in how much more expansion they can sustain in their existing infrastructure.
Data centers choosing liquid coolingFor these reasons, an increasing number of data center managers are looking toward liquid cooling. Formerly considered a risky choice by those who feared the prospects of water contacting electronics, liquid cooling is fast gaining converts among those whose responsibilities include efficient, effective thermal management.
Quick connect couplings are essential in the liquid cooling systems for electronics, data center rackable systems, servers and supercomputers.
Connectors are critical parts in the performance of liquid cooling. The fact liquid cooling is no longer viewed as a no-no in data centers can be attributed to the high level of design, engineering and manufacturing control directed to the necessary hardware.
Non-spill couplings taking center stage
Reliable connectors deliver peace of mind to data center managers. Dripless couplings’ advanced internal design and robust functionality that non-spill valving means no spills occur during connecting and disconnecting. Flat-sealing, flush-face designs prevent fluid loss, thus ensuring high levels of performance with a broad range of liquids in a variety of application environments.
Engineers and facility managers who are faced with the necessity of improving their data centers’ thermal management can take steps to ensure their worries will be minimized. Liquid cooling system manufacturers and installers can specify high quality dripless connectors in their systems to guarantee peak performance over the long life of their systems.
The rising need for thermal managementThe need for enhanced thermal management is not expected to decline or even plateau. Highly demanding industries, the blistering pace of technology advancements and increasing use of multi-core chips are forcing data centers to deal with hotter temperatures. What’s more, airflow through data centers is increasingly hindered as dense new arrays of equipment are added.
Gone are the days when data centers could just turn up the air conditioning and add more fans. Those steps cannot keep up with the heat generated by the increasing number of chips operating at soaring levels of storage and processing.
Even though leaks are fast becoming yesteryear’s problem, some managers still fear the prospects of liquid cooling, largely because of misperceptions. But facts clearly show little to no reason to worry about liquids escaping in the data center. A more confounding worry actually is the fact that inefficient cooling systems cut into data centers’ profits.
Liquid cooling strengthening data centers
Progressive engineers and facilities managers recognize liquid cooling as a technology enabler. Liquid cooling broadens the opportunities for data centers determined to add power and equipment. As the risk of leaks decline, so are the costs in liquid cooling.
Reliability, of course, cannot be taken for granted. Data center managers should consult with their designers and engineers involved in the manufacturing of liquid cooling systems to learn the performance attributes and test results of critical parts and assemblies. As more information becomes available about liquid cooling systems’ benefits and performance, especially in the area of mitigating risks associated with leaking liquids, smart decisions are easier to make.
Managers can gain confidence in their liquid-cooling system’s couplings by demanding they feature a flush-face valve design to prevent fluid loss. In addition, couplings should reduce pressure drops, resist vibrations and rotation, and accommodate a broad selection of sealing materials across a range of temperatures.
For the critical needs of data centers, compromise is not an option. Smart investments in reliable components like universal dripless connectors will pay big dividends in the near term and over the long haul.
Today the industry is benefiting from the development and implementation of liquid cooling systems that meet data centers’ needs and set them up for opportunities to add computing capacity to drive their growth and earnings. More and more decision-makers today understand and appreciate the wisdom of smart hardware investments that reduce risks and deliver enormous benefits resulting from efficient and dependable thermal management.
Parker’s Quick Coupling Division is the largest manufacturer of quick couplings in the world. Learn more about the critical role of Parker’s dripless connectors in liquid cooling systems for thermal management.
This post was contributed by Cameron Koller, market development manager, Quick Coupling Division, Parker Hannifin.
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Snap rings fittings are unique to Parker's Transair® Aluminum Pipe System. Found on the 2" (50mm) and 2-1/2" (63mm), a snap ring fitting requires two holes at the end of the pipe to secure the snap ring. Minimal tooling and technical expertise are required for installation. The simplicity of the snap ring fitting reduces the chance of installation error.
Snap ring connection technology is the second of three connection technologies used by Transair Aluminum Pipe Systems. Transair uses three different connection technologies to ensure every diameter is safe, fast, and easy, to install. Just like push-to-connect and clamshell, snap ring is rated for use with compressed air, vacuum and inert gases.
Push-to-connect is used for 1/2" to 1-1/2" pipe (common use: airdrops to machines and tools)
Snap ring is used for 2" to 2-1/2" pipe (common use: compressors and air distribution)
Clamshell for 3" to 6" (common use: compressors and air distribution)
By following these simple steps, you will be an expert installer of Transair Snap Ring Fittings. (Full lengths of 2" & 2-1/2" pipe only requires six installation steps while cut lengths require ten steps)
Installing full lengths of 2" & 2-1/2" Transair aluminum pipe 1. Unscrew one end of of the fitting
Take the free nut of the fitting and slide it over the end of the pipe.
2. Place the snap ring in the pre-drilled holes
All 2" & 2-1/2" pipes come from the factory with the snap ring holes pre-drilled at each end.
Due to the unibody design of the ring, this can be accomplished one-handed.
If you are having difficulties lining the ring with the holes, place the ring farther down the pipe and slide the ring along the pipe until it clips into the holes.
3. Slide the free nut forward until it is stopped by the snap ring
4. Hand tighten the fitting nut into the fitting body
5. Tighten the assembly using spanner wrenches
Use the spanner wrenches (6698 05 03) to tighten the fitting nuts 1/2 turn to ensure proper a tight connection.
6. Install Fixing Clips
To ensure the proper stability of the system, we suggest the use of at least two (2) clips per pipe.
By following these simple steps, you will be an expert installer of Transair snap ring fittings. (Full lengths of 2" & 2-1/2" pipe only requires six installation steps while cut lengths require ten steps)
1. Measure and mark the pipe for cutting
2. Cut the pipe
Place the pipe cutter (6698 03 01) on the pipe at the desired cutting mark. Rotate the pipe cutter around the pipe until the pipe is cut.
3. Remove debris
Carefully chamfer the outer edge of the pipe using a file. Then, deburr the inner edge of the pipe using the deburring tool (6698 04 02).
4. Drill snap ring holes
Place the drill jig (6698 01 03) on the cut end of the pipe. Using a drill and the Transair drilling bit (6698 02 01) drill a hole on either side of the pipe. Release the drill jig, and deburr the holes using the deburring tool (6698 04 02)
Take the free nut of the fitting and slide it over the end of the pipe.
6. Place the snap ring in the pre-drilled holes
Due to the unibody design of the ring, this can be accomplished one-handed.
If you are having difficulties lining the ring with the holes, place the ring farther down the pipe and slide the ring along the pipe until it clips into the holes.
7. Slide the free nut forward until it is stopped by the snap ring 8. Hand tighten the fitting nut into the fitting body 9. Tighten the assembly using spanner wrenches
Use the spanner wrenches (6698 05 03) to tighten the fitting nuts 1/2 turn to ensure proper a tight connection.
10. Install Fixing Clips
To ensure the proper stability of the system, we suggest the use of at least two (2) clips per pipe.
Golden rules of safety
This post was contributed by Guillermo Hiyane, product sales manager, Parker Fluid System Connectors Division.
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This blog was adapted from the white paper "Mass Flow Explained: Thermal Versus Differential Pressure", download your copy
Request a sample and get technical specifications for the IEC-60601-1-2 compliant BTX-Connect miniature pump
To find out more about the BTX-Connect miniature pump, visit our website and request a sample