Repair Broken RTD & Thermocouples

A Modular Temperature Sensor Assembly System for the Instrumentation Maintenance Professional

The SENSOR BOX™ is a modular temperature sensor assembly system for the instrumentation maintenance professional. It can be your solution to expediting, high inventory and expensive downtime. One of the challenges in maintaining industrial temperature sensors is the variety. It is difficult for the typical process plant to stock every sensor configuration they might need to replace - until now. By combining common parts into a modular system, a relatively small amount of stock can translate into the variety you need - quickly, and without expediting.

You Have A Problem...
3:00 PM on a Friday afternoon, and you’ve just discovered a temperature sensor has failed in an important process. The Safety Engineer wants the process shut down, but you’re under pressure to keep production moving. You’re going to spend the rest of the afternoon in “Panic Mode,” calling every sensor supplier you can think of, begging for the best delivery at a premium. Not very pretty.

If this sounds familiar, then the SENSOR BOX™ was developed to help improve your life. Maintenance or instrument technicians can now build a new temperature sensor assembly, install it and the plant can be back up and running in minutes rather than days! The SENSOR BOX™ is designed for any plant where temperature sensors are an important part of the operation, and downtime is not an option.

Forberg Can Help
 The SENSOR BOX™ is a rugged toolbox containing all of the parts and tools to quickly and easily build the sensor you urgently need. It is:

• Flexible - adaptable to most process plants:
   - Power
   - Chemical
   - Refining
   - Offshore Oil Production
• Comprehensive - It can include a variety of sensor types and hardware of your choice.
• Self-contained - Everything you need to build the right product is at your fingertips.
• Industrial - The toolbox and tools are rugged, designed for hard duty.
• Easy to use - Complete, easy to follow instructions are included.

How We Do It
The Sensor Box™ can be your solution to expediting, high inventory and expensive downtime. One of the challenges in maintaining industrial temperature sensors is the variety. It is difficult for the typical process plant to stock every sensor configuration they might need to replace – until now. By combining common parts into a modular system, a relatively small amount of stock can translate into the variety you need – quickly, and without expediting.

You Have A Problem...
A Sensor Box™ is specified in three stages, to maximize its flexibility to your needs:
1. The foundation: the Tool Box and tools required to build sensors (everything you need will be close at hand!)

Sensor Box Installation & maintenance Manual
The Sensor Box Bulletin
The Sensor Box Re-order Form
(you can email us the re-order form at mechanicalsales@forberg.com)

If you would like to receive more information or pricing and availability on The Sensor Box, or other the other products UE Applied Sensor Technologies please contact Forberg Scientific, Inc.
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com

New One Series Safety Transmitter

WATERTOWN, Mass., Dec. 10, 2013 /PRNewswire/ United Electric Controls has introduced the One Series Safety Transmitter the first SIL 2-certified transmitter designed solely for safety system applications. Unlike costly, overcomplicated process transmitters that must be adapted for safety use, the One Series is engineered to protect, giving safety teams simple setup and fast, safer and affordable performance from the start.

The new One Series Safety Transmitter is available in versions that monitor temperature and pressure. Its features include "an exclusive design that means fewer nuisance trips and greater safety and productivity, an internal high-speed safety relay for the fastest emergency shutdown, greater affordability than adapting a process transmitter for safety applications, and a higher safe failure fraction that simplifies SIL achievement," said Wil Chin, Vice President of Marketing and Business Development, United Electric Controls.

The One Series transmitter provides 4-20 mA NAMUR standard output with exclusive "I Am Working" diagnostics. A unique, high-speed safety relay output is incorporated for local alarm or emergency shutdown. Discrete outputs deliver diagnostics and relay status voting logic input to the safety PLC to determine appropriate action. The transmitter is certified for use in SIL 2 safety instrumented systems, and is capable of SIL 3 per IEC 61508. It has configurable self-diagnostics and achieves a safe failure fraction of 98.5%. Instrument response time is less than 100 milliseconds.

Additional features include:

• A large digital display that provides process variable, status, self-diagnostics and field programming information
• 100% programmable solid-state relay (switch set point & deadband)
• Effectively replaces a gauge, transmitter and a switch to reduce potential leak paths
• Certified for use in SIL 2 plant safety applications with FMEDA report available Worldwide hazardous location approvals for Class I, Divisions 1 & 2 (Zones 0, 1 & 2)

 

One Series Safety Transmitter

Engineered to Protect
The One Series Safety Transmitter gives plant safety teams simple setup and faster, safer performance, right from the start - all at a more affordable price. Don't use a costly, over complicated process transmitter that must be adapted for safety use. The One Series Safety Transmitter is the first SIL 2-certified transmitter designed solely for safety system applications. It's the only One that comes with an internal high-speed safety relay for the fastest emergency shutdown. And that simple design means fewer nuisance trips - for greater safety, productivity, and throughput.


One and You're Done
The One Series Safety Transmitter is available in versions that monitor temperature and pressure. They provide a 4-20 mA NAMUR standard output with exclusive "I Am Working™" diagnostics. A unique, high-speed safety relay output is provided for local alarm or emergency shutdown. Discrete outputs deliver voting logic input to the safety PLC to determine appropriate action. The One Series Transmitter is certified for use in SIL 2 safety instrumented systems, and is capable of SIL 3 per IEC 61508. It has configurable self-diagnostics and achieves a safe failure fraction of 98.5%. Instrument response time is less than 100 milliseconds.

DOWNLOAD BROCHURE

It's the one:

• Fewer nuisance trips for greater productivity
• More affordable than adapting a process transmitter
• Internal safety relay for faster emergency shutdowns
• Higher safe failure fraction simplifies SIL achievement

If you would like more information, pricing and availability on the UE One Series Safety Transmitter or other United Electric Controls products please contact Forberg Scientific Customer Service.
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com
Forberg Website: www.forberg.com
UE Website: www.ueonline.com
 

UE One Series Seal Oil Skid Cost Reduction

UE ONE SERIES APPLICATION NOTE
One Series electronic switch reliably protects generator with I Am Working^TM

A major electrical infrastructure company designs and manufactures power generation turbines that use natural gas, oil, coal and other fuel technologies. The company has standardized on One Series model 2XLP43 for measuring gage and differential pressure to replace traditional transmitters, UEmechanical switches and mechanical gauges on their seal oil skids.



THE PROBLEM:
The company needed to lower costs, reduce maintenance and provide more reliable hydrogen-cooled generators for their customers worldwide. In order to monitor pressure remotely, provide switch control and be able to instantly view pressure readings, three discrete instruments were needed – a pressure transmitter, a pressure switch and a local gauge. These three instruments were all connected to the same pressure source using the piping tree arrangement to the right.

Counting all of the tubing, elbows, t-fittings and connections to each instrument and the pressure source, potential leak paths quickly became a problem. Not counting block and bleed valves, there were a minimum of 12 threaded connections where the media could leak. The cost of the stainless steel tubing and fittings, the cost of the labor to plumb and leak-test and the maintenance required should clogging or leaking occur were all considered. Adding in the cost of the instrumentation and considering reliability, clearly a better method was needed.

THE SOLUTION:

The company needed a highly reliable instrument that could evaluate and report its own health status and provide the functions of the three instruments while reducing overall costs. The One Series 2XLP model is primarily a smart pressure transmitter with display that includes a programmable electronic switch – switch + gauge + transmitter all-in-one.

All One Series models include a self-diagnostic feature called I Am WorkingTM that monitors several vital instrument functions and reports health status three ways – locally on the digital display and remotely via the 4-20 mA analog and using discrete switch signals.

The One Series’ I Am WorkingTM feature watches for potential faults that could render the device unreliable. Unlike other blind instrumentation, the One Series can report detected faults with its own imbedded software, keypad, watchdog timer, power, switch and sensor. For example, if a clog occurs in an impulse line connected to the pressure sensor, the One Series can detect and report this fault before it becomes a larger problem – an undetected fault. In this case, the display will read “PLUG” while the switch opens (fail safe) and the 4-20 mA output saturates to 24 mA. The PLC evaluating these outputs then initiates an alarm or emergency shutdown, as appropriate.

For the company, the One Series carries worldwide hazardous location approvals and the units of measure are field adjustable, so no matter where in the world these seal oil skids land, the units of measure can be set to the local preference during commissioning. Reliability data is provided by a third-party failure modes and effects diagnostic analysis (FMEDA) report, available on UE’s website.

If you would like more information, pricing and availability on the UE One Series Switch or other United Electric Controls products please contact Forberg Scientific Customer Service.
Tool Free: 855-288-5330
Email: mechanicalsales@forberg.com

How to Select a UE Pressure Switch

United Electric Controls (UE), a market leader in pressure switching technologies with hundreds of permutations for diverse applications in virtually every industry has spawned unintended consequences for users - too many models to choose from. The upshot of this is a simple reliable switch is most likely available for your application. All you need to do is follow the recommendations below and have UE select the ideal switch for your needs.

How to Select a Pressure Switch

Pressure switches are widely used by many industries and within many applications. The basic function of a pressure switch is to detect a pressure change and convert it into an electrical signal function – typically on/off or off/on. Pressure switches may be of electro-mechanical or electronic/solid-state design; and while each may have its advantages, arriving at the correct pressure switch for your application is the same.

Set point & deadband

Application set point is the desired value reached at rising or falling pressure at which the micro-switch changes electrical states. Depending upon the pressure switch function, the micro-switch could be wired to open or close when set point is achieved thereby triggering an event such as an alarm, equipment shutdown, or powering up secondary equipment. Ideally the set point should fall into the mid 50% of the pressure switch range for best performance including repeatability and long life. On an electro-mechanical pressure switch, set point may be adjusted internally or externally either through blind adjustment or reference dial. An electronic pressure switch would have internal or external adjustment via a key pad and digital display.

Deadband is the on-off differential required to reset the micro-switch. This value may be fixed or adjustable with an electro-mechanical switch and may be up to 100% adjustable on an electronic switch. Deadband may be an important factor to consider depending upon the application requirements.

System pressure

Knowing your normal and maximum system pressures will help in selecting a pressure switch with appropriate minimum and maximum operating parameters. Once your set point is established, other factors to consider are vacuum and/or surge pressure that could affect switch operation. This would involve maximum working pressure, over range pressure, and proof pressure specifications of a pressure switch. The relationship between set point and system pressure has a direct effect on switch performance and life.

Electrical considerations

Micro-switches are available in a variety of configurations. The most common for electro-mechanical pressure switches is 15A, 480VAC SPDT (single pole, double throw). The advantage of a SPDT micro-switch is that it offers wiring flexibility to either open or close on pressure change. Other micro-switches available include 1A with gold contacts, useful when working with a PLC, or at the upper end, 30A when switching certain high voltage heaters or motors. Adjustable micro-switches help with deadband adjustment. A DPDT (double pole, double throw) micro-switch would provide two simultaneous functions off of one micro-switch. If a low-high limit alarm and shutdown were required, there are pressure switches that include two SPDT micro-switches that are independently settable.

An electronic pressure switch would use solid-state relays to change states. Like an electro-mechanical switch, the electronic switch can be programmed to open or close on rising or falling pressure. There are different capacities for switching voltage and current depending upon the application requirements.

Process media and wetted parts

The pressure connection and sensor are known as wetted parts since they come into direct contact with the process media. Sensor material is either elastomer (i.e. Buna-N, Teflon®) or metallic (i.e. Brass, Stainless Steel) with metallic or composite pressure connections. The process media must be compatible with the wetted parts material. Process media temperature should also be considered as each of the different wetted materials would have differing operating properties. 

Pressure switch mounting

If the unit is to be installed directly onto the process, there are many methods of installation. Typically a 1/8”, 1/4”, or 1/2” NPT (national pipe thread taper) connection is used with a mating fitting to secure the pressure switch to the process. There are also straight threaded (SAE, BSPT) connections, flush mount connections, and sanitary connections. The pressure switch may be mounted directly in the process line using the threaded connection, a manifold, or flange; or the enclosure could be bolted to a mounting plate or other plane to secure it. If heavy vibration is present, you may choose to use a remote diaphragm seal with the pressure switch. The diaphragm seal mates with the process connection while the pressure switch enclosure is mounted securely away from the vibration.

Process environment

It is important to know what type of environment the pressure switch would be installed in – hazardous or ordinary location; indoors or outdoors; exposed to salt air; inside a control panel; in high ambient temperature. These are just some of the factors to consider so the right enclosure type is chosen. Enclosure types come in many shapes, sizes, and materials. They also conform to various industry and third-party approval standards. Electronic switches can be used to replace electro-mechanical switches when SIL is needed for safety applications. There are also electro-mechanical pressure switches without enclosures; typically used in OEM, non-hazardous locations where the environment is benign.
With careful consideration of all the factors listed above, choosing a pressure switch is a snap.

Visit United Electric Controls (UE) Product Selector to find your pressure switch.

If you would like more information like pricing and availablity about United Electric Controls (UE) Pressure Switches or other UE products please contact Forberg Scientific customer service.
Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com

UE ONE SERIES low cost mechanical switch

Forberg Scientific Offers the United Electric ONE SERIES, which has all the reliability of an electronic transmitter, with the ease of use and low cost of a mechanical switch!

MAKE THE SMART CHOICE. THE ONE SERIES FROM UE IS:

• A reliable, cost-effective solution for upgrading plant instrumentation.
• Ideal for applications that demand a switch that never needs calibration, has programmable adjustability and 0.1% repeatability.
• Easily integrated into a safety instrumented system (SIS) that requires a smart-diagnostic switch (FMEDA and SIL verification reports available upon request).



KEY FEATURES THAT SET UE’s ONE SERIES APART:
• Digital process display
• Programmable set point and deadband
• Self-diagnostic solid-state digital electronics
• Plug port detection
• Nuisance trip filtering
• Patented electronic IAW self-diagnostics
• Min/Max process values memory
• 3-year warranty

APPLICATION VERSATILITY:
For alarm and shutdown switching applications, there is no better choice than the One Series family of electronic switches from United Electric Controls. Measuring gauge pressure, differential pressure or temperature, the extremely rugged and reliable One Series takes all of the guess-work out of monitoring process variables to prevent injury, loss and downtime. With its large digital display, fully-adjustable deadband, and 100% solid-state design, the One Series is the obvious choice for plant upgrades and new construction projects. A built-in microprocessor includes digital repeatability and intelligent self-diagnostics, offering plant operators an extremely reliable and smart protection device.

Proven in use in literally thousands of diverse applications, UE has recently developed explosion-proof One Series models, extending this revolutionary switching technology to Zone 1 (Division 1) areas.

PROVEN IN LITERALLY THOUSANDS OF DIVERSE APPLICATIONS! HERE ARE JUST A FEW
• Pumps and compressors- start/stop, optimizing, shutdown, staging
• Lubricating oil monitoring- sump temperature, bearing pressure, predictive maintenance
• Hydraulic oil pressure- high pressure monitoring, emergency shutdown, ram cycling
• Filter monitoring- automatic backwash, clog and change indication, proving flow
• Safety systems- safety integrity levels 1 & 2, alarm and shutdown, local switching, fast response time
• Plant upgrades- power and wastewater plant upgrades, drop-in replacement for mechanical switches

More information about the UE One Series click UE One Series Catalog

If you would like more information about the UE One Series or other United Electric Controls items please contact Forberg Scientific, Inc Customer Service Representative.
Phone: 248-288-5330
Email: mechanicalsales@forberg.com

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United Electric Controls UE TX200H HART Smart Pressure Transmitter

United Electric Controls News Release May 2, 2011

Watertown, MA - United Electric Controls introduces the TX200H, a HART smart pressure transmitter designed for the upstream oil and gas applications. The TX200H provides simplified field adjustment while reliably communicating asset management data utilizing the latest HART 7 specification.

A flexible 10:1 turndown on the pressure ranges from the 0 to 15 psi (0 to 1 bar) up to 0 to 25,000 psi (0 to 1724 bar) allow users to range the transmitter as application requirements change while reducing inventory levels through model reduction. The TX200H real-time diagnostics also reduce maintenance costs by reporting device health status and process performance, alerting users to potential problems to troubleshoot before escalation occurs.

The TX200H is constructed of 316 stainless steel, welded and hermetically sealed to meet enclosure type 4X and IP66 requirements. Its rugged design lends itself to being mounted directly onto the process or panel mounted within the control panel. Standard approvals include cULus for Class 1, Div.1 & 2, Zone 1 and ATEX Ex d and Ex tD hazardous areas. Is is CE compliant to both PED and EMC dirtectives.

Integrating the TX200H into most process systems is simple. Since HART communication is superimposed over the 4-20 mA signal, the TX200H can use existing wire as and upgraded. drop-in replacement for a standard analog 4-20 mA transmitter. A user may easily communicate with the TX200H utilizing a handheld device or a PC equipped with commercially available software.

To purchase the TX200H or get more information contact Forberg Scientific Customer Service Toll Free: 855-288-5330
Email: mechanicalsales@forberg.com



TX200H Data Sheet

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UE One Series Sensors: Durable, Reliable & Versatile

United Electric Controls' One Series electronic pressure switches & temperature switches. United Electric Controls (UE) is renowned for high-quality workmanship and product design, and the One Series carries this nearly 80-year traditon well beyond electromechanical swithes. UE's One Series line of digital electronic pressure switches and digital electronic temperature switches sets new standards for quality, reliability and versatility. Designed to meet the needs of harsh and hazardous applications the One Series' advanced self-diagnostics and digital electronics provide the most reliable switches for a variety of diverse industries. The One Series from UE allows you to choose from explosion-proof, intrinsically safe and non-incendive modles that monitor gauge pressure, differential pressure or temperature. With up to two fully adjustable set points and deadbands, available 4-20 mA analog output, and absolutely no moving parts, these versatile instruments can now be used in a wide variety of applications where switches weren't previously considered. Featuring a solid-state design, UE's One Series is your best choice for tough applications with high cycle rates, vibration and shock. For plant upgrades, there are a variety of power optionsranging from 2-wire discrete and analog loop-powered models to externally powered models that can deliver up to 280 VAC at 10 amperes to the load. With an integral digital display and 4-20 mA output, the One Series from UE can effectively do the job of three - replacing a switch, a gauge and a transmitter. Powerful yet easy to install, the Ones Series from UE features tamper-resistance, intuitive programming, and set-up that is fast and easy.

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NEW April 4th Ones Series Differential Pressure Sensor Range 0-5 PSID

Announcement: On April 4th, 2011, A new range added to all One Series electronic switches. The new range available is 0-5 PSID. The differential sensor has a 0 - 5 psid range with 0.5% accuracy, 0.1% repeatability and 0.08% temperature drift of full scale per Celsius. The body of the sensor is stainless steel with similar construction to the existing ranges. Wetted materials are all welded 316L stainless steel diaphragms for the high and low 1/4" NPT (male) process connections. Effective April 4th, Forberg Scientific customer service will be ready to take your One Series orders with the new range sensors.
One Series Bulletin

Contact
Forberg Scientific Customer Service
Toll Free: 855-288-5330
Fax: 248-288-4204
Email: mechanicalsales@forberg.com



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