Saturday, December 30, 2017

Happy New Year from Flow-Tech

With 2017 coming to a close, all of us at Flow-Tech wanted to reach out and send our best wishes to our customers, our vendors, and our friends! We hope that 2018 holds success and good fortune for all of you.


Wednesday, December 13, 2017

Draeger Tubes & Chip Measurement System Handbook

Draeger is the leader in industrial gas and vapor analysis and have developed more detection devices and tubes for more applications than any other gas detection company.

Draeger sampling tubes allow identification and measurement of different substances even under difficult conditions.

Draeger Chip Measurement System (CMS) combines Chips for measure specific substances with an electronic analyzer for easy-to-use spot-measurement. The analyzer combines an optical system for analyzing the color reaction with a mass flow controller and pump system.

Download the Draeger -Tubes & Chip Measurement System Handbook here.

Thursday, October 19, 2017

Centralized Gas Monitoring for Industry

Drager REGARD 7000
The Drager REGARD 7000 is a modular and highly expandable analysis system for monitoring various gases and vapors. Suitable for gas warning systems with various levels of complexity and numbers of transmitters, the Drager REGARD 7000 also features exceptional reliability and efficiency. An additional benefit is the backward compatibility with the REGARD.

For more information in Maryland or Virginia, contact Flow-Tech at 410666-3200 or visit http://www.flowtechonline.com.

Check out the video below to learn more about the Drager REGARD 7000. Thanks for watching.

Tuesday, July 25, 2017

Fieldbus Equipped Instrumentation - Part Two

Since automatic control decisions in FOUNDATION fieldbus are implemented and executed at the field instrument level, the reliance on digital signals (as opposed to analog) allows for a streamlined configuration of direct control system ports. If the central control device were to become overloaded for any reason, tasks related to control decisions could still be implemented by operators in the field. This decentralization of the system places less burden and emphasis on the overall central control unit, to the point where, theoretically, the central control unit could stop functioning and the instrumentation would continue performing process tasks thanks to the increased autonomy. Allowing for the instrumentation to function at such an increased level of operation provides a proverbial safety net for any system related issues, with the capacity for independent functionality serving as both a precaution and an example for how process technology continues to evolve from analog solutions to fully end to end digital instrumentation.

Even in terms of the FOUNDATION instrumentation itself, there were two levels of networks being developed at this increased level of operation, initially: the first, H1, was considered low speed, while H2 was considered high speed. As the design process unfolded, existing Ethernet technology was discovered to fulfill the needs of the high speed framework, meaning the H2 development was stopped since the existing technology would allow for the H1 network to perform to the desired standards. The physical layer of the H1 constitutes, typically, a two-wire twisted pair ungrounded network cable, a 100 ohm (typical) characteristic impedance, DC power being conveyed over the same two wires as digital data, at least a 31.25 kbps data rate, differential voltage signaling with a defined threshold for both maximum and minimum peak receive rates, and Manchester encoding. Optical fiber can be used on some installations in lieu of the twisted pair cable.

Most of these specifications were exactly designed to withstand extremely challenging process control environments while still not abandoning the philosophy of being easy to build and implement, especially in terms of new system establishment. The most crucial aspects of many process control systems are streamlined together, allowing for consistent communication and synchronization. All aspects are viewable from both the legacy central controller and also via each individual device. Despite the data rate of 31.25 kbps being relatively slow, what is sacrificed in terms of speed is more than made up for in terms of the system being compatible with imperfect cables and other hiccups which may destabilize a network with faster speeds. The evolved technology, ease of installation, and durability have made the H1 network a widely used implementation of the FOUNDATION fieldbus technology. Fieldbus is currently considered one of a few widely adopted industrial process control communications protocols.

For more information contact Flow-Tech in Maryland at 410-666-3200; in Virginia at 804-752-3450, or visit http://www.flowtechonline.com.

Saturday, July 22, 2017

Fieldbus Equipped Instrumentation - Part One

Autonomous control and digital instrumentation are two capabilities enabling highly precise or complex execution of process control functions. FOUNDATION fieldbus instrumentation elevates the level of control afforded to digital field instrumentation where, instead of only communicating with each other, instruments involved in particular process control systems can independently facilitate algorithms typically reserved for instruments solely dedicated to controlling other instruments. Fieldbus capable instrumentation has become the standard instrumentation for many process industry installations due to the fact the FOUNDATION design principle streamlines process systems. A large contributor to FOUNDATION's success has been faster installation as opposed to operational controllers which do not feature the fieldbus configuration. Newer process companies, or process control professionals seeking to establish a new system, have gravitated towards fieldbus due to the combined advantages of system conciseness and ease of implementation.

In a typical digital control system, dedicated controllers communicate with field instrumentation (the HART protocol is a prime example of digital communication at work in the industry). The host system controls configuration of instruments and serves as a central hub where all relevant control decisions are made from a single dedicated controller. Typically, these networks connect controllers and field devices through coupling devices and other buses which streamline many different instruments into a complete system.

FOUNDATION fieldbus approaches the same network scheme with an important difference. Whereas in a legacy or more conventional system, either algorithmic or manual decisions would need to be implemented via the dedicated system level controllers, instruments utilizing FOUNDATION fieldbus architecture can execute control algorithms at the local device level. The dedicated controller hub is still present, so that operators can view and monitor the entire network concurrently and make status changes. Algorithmic execution of control functions becomes entirely device reliant thanks to the FOUNDATION protocol. Additionally, even though FOUNDATION implements an advanced configuration, some operators use the capabilities introduced in the fieldbus upgrade to implement specific algorithms via each device while concurrently maintaining algorithms in the central controller. This dual algorithmic configuration allows for several advantages, including the ability for increased system precision.

Since individual devices in the control process are calibrated and able to execute their own control functions, issues in the process with particular devices can be isolated and dealt with in a more specified manner by technicians using the instruments in the field. The central operator retains the capacity to use the control hub to alter and direct the control system.

For more information contact Flow-Tech in Maryland at 410-666-3200; in Virginia at 804-752-3450, or visit http://www.flowtechonline.com.

Watch for Part Two of this series to be posted soon.

Friday, June 30, 2017

Happy Fourth of July from Flow-Tech

"We hold these truths to be self-evident, that all men are created equal, that they are endowed by their Creator with certain unalienable Rights, that among these are Life, Liberty and the pursuit of Happiness. — That to secure these rights, Governments are instituted among Men, deriving their just powers from the consent of the governed, — That whenever any Form of Government becomes destructive of these ends, it is the Right of the People to alter or to abolish it, and to institute new Government, laying its foundation on such principles and organizing its powers in such form, as to them shall seem most likely to effect their Safety and Happiness."

THOMAS JEFFERSON, Declaration of Independence

Wednesday, May 24, 2017

Drager X-Zone 5500 Hazardous Gas Area Monitoring

Drager X-zone 5500
Drager X-zone 5500
The Dräger X-zone 5500 transforms the Dräger X-am 5000/5100/5600 personal gas detection instruments into innovative area gas monitoring devices for a wide range of applications. In addition to personal air monitors carried on the body, these area gas monitors are positioned where gas hazards are expected to increase the level of safety.

Wireless fenceline

Up to 25 Dräger X-Zone 5500 can be automatically interconnected to form a wireless fenceline. The interconnection of the area monitoring devices allows for rapid establishment of safety networks for larger areas. A Dräger X-zone 5500 detecting a gas alarm transmits the alarm signal to all interconnected units. A red flashing master alarm in the mother unit detecting gas contrasts with red/green flashing alarms of the connected daughter units providing simple recognition of alarm status and the actual location of the hazard.

With the corresponding configuration, the maximum gas concentration in the monitored area is shown on the display. Combined with the display of the X-zone ID a clear containment of the hazard area is possible.

Clear warning

The illuminated green LED ring indicates that the air is free of toxic and combustible gases. Upon detection of gas hazards, the LED color changes from green to red, thus providing a clear visual warning that gas is present. Additionally, a loud and highly audible evacuation alarm is emitted. The Dräger X-zone 5500 gas entry is arranged that the gas can diffuse into Dräger X-am gas monitors from all sides.

Perfect for confined spaces

An integrated pump version allows for continuous monitoring of confined spaces and locations which are difficult to access, even from a distance of up to 150 ft.

Other benefits
  • Visual 360° LED (illuminated ring) 
  • Audible 360°; > 108 dB in a distance of 1 m (30 ft.), 120 dB in a distance of 30 cm (1 ft.) 
  • Approval for Ex-Zone 0 
  • Daily function test and calibration not required after single on-site testing 
  • Individually configurable with the Dräger CC-Vision PC software (eg. alarm frequency) 
  • Inductive charging station: easy and convenient non-contact charging 
  • Continuous operation for up to 120 hours: The 24 Ah battery of the Dräger X-zone 5500 provides up to 120 hours of continuous operation – a complete working week.

Monday, April 17, 2017

The Meriam MFC5150x Intrinsically Safe HART® Communicator

MFC5150
Meriam MFC5150
Available in ATEX (intrinsically safe) and Non-ATEX models, the Meriam MFC5150 directly reads Device Descriptions without any translations or subscriptions, enabling communication to take place with any registered or unregistered HART® device. This ensures your HART® transmitter will connect, regardless of brand or model.

The MFC5150 is built on the SDC-625 infrastructure and runs Windows CE. With a 1GHz processor and an 4GBMicro SD card, this HART® communicator is ideal for all of your data storage needs.

The 4.3 inch touchscreen provides excellent anti-glare viewing, allowing for comfortable mobile use in darkness or in bright sunlight. All functions are easily navigated via the full QWERTY keyboard and intuitive icons similar to that of a smart phone.

The handheld HART device also features hyperlink menu paths, teachable device specific shortcuts, instant on, multiple languages, help context, video’s and TAB access to panes just like on a computer.



For more information visit Flow-Tech here, or call 410-666-3200 in Maryland or 804-752-3450 in Virginia.

Tuesday, March 28, 2017