The Environics, Inc. Post

Gas Humidification

Posted by Rachel Stansel on Mon, Oct 16, 2017 @ 01:40 PM

 

humidifier option

Humidifiers allows you to add specific Relative Humidity (RH) levels to a gas or a blend of gases to simulate actual conditions in laboratory experiments or other cases where gas samples contain humidity. Often, this is done to recreate a particular gaseous environment or condition. This can be done through adding a humidification option to your Environics mixing/dilution system.

The humidification option is built into a gas mixing/dilution system and allows specific RH levels to be added to the output gas of the system. RH levels are adjustable and levels between 0 - 95% can be achieved. The humidifier is factory calibrated for a requested RH level to an accuracy of 5% (assuming a constant flow rate and gas temperature), and is NIST traceable.

The humidification option is rear panel mounted and consists of a humidifier and a 250mL gravity feed D.I. water reservoir. The humidifier is made from a water vapor permeable tube made of Nafion (a Teflon derivative). The associated unit has a heather flow part for stability. The humidification option incorporates a continuous purge path to prevent moisture build-up and condensation.

Depending on your specific needs, a water circulating pump may be used with the humidifier water source. As an endothermic process, heat is removed from the water while the gas is being humidified. The pump is sometimes needed to keep the water temperature from getting too cold and preventing the production of high humidity levels.

The accuracy, repeatability and linearity of the humidifier depend upon how stable the gas and room temperature are maintained.

Questions? Contact us today for more information!

 

Tags: humidity, humidification, gas mix with humidity, rh gas, gas humidity

In the News : New US Ozone Standard Takes Effect

Posted by Rachel Stansel on Thu, Oct 12, 2017 @ 02:06 PM

epa_logo-resized-600.jpgOn October 1, 2017, a new ozone standard took effect in the US amid widely differing opinions. In late 2014, the EPA had proposed lowering the ozone standard to a between 65 to 70 from the current standard of 75 ppb (set in 2008 under the Bush administration). Public discussion was heated with many groups urging the EPA to maintain the existing standard. On October 1, 2015, under a court-ordered deadline, the EPA finalized the ozone National Ambient Air Quality Standard (NAAQS) standard at 70 ppb.

This was not the end of the discussion however. The U.S. Chamber of Commerce and the American Petroleum Association, who said that the rules would be a huge burden and that the cost to comply could be in the billions, filed for a review to challenge in the U.S. Court of Appeals for the D.C. Circuit.  At the same time, five states filed a lawsuit challenging EPA's new 70 ppb ozone standard, with four additional states later joining them Earlier this year, D.C. Circuit Court of Appeals granted EPA’s motion to indefinitely stay the lawsuit to give them the necessary time to review the data and the standard.

With all of this going on for the part 2 years, the EPA, now under the Trump administration, had initially sought to delay the rule. However, after lawsuits were filed by 16 state attorney generals, the EPA declined to delay the rule, which took effect on October 1, 2017. On July 20th, the House passed HR-806 by a vote of 229 to 199. Also known as the Ozone Standards Implementation Act, the bill would double the time frame under which the EPA reviews the ozone standard (from 5 yrs to 10 yrs) and also gives the EPA the ability to consider factors other than human health. This bill now sits in the Senate.

Why is this important?  Michael Greenhouse,co-author of a report issued by the University of Chicago’s Energy Policy Institute spoke to Forbesabout the importance of these regulations, stating, “Our research shows that efforts to reduce ozone extend lifespans. While previous research had suggested this, the especially novel finding here is that pollution reductions lead to significant reductions in the purchase of medications that protect people from becoming sick or even dying prematurely … The implications for air pollution policy are potentially enormous.”

The new regulations have a large impact on the number of areas in the US that now are noncompliant. According to the EPA, 28 counties were classified as nonattainment areas under the 75 ppm standard and data sugegsts 241 counties violate the 70 ppb standard. 

US 8-Hour Ozone Nonattainment Areas at 70ppb
Projected 8-Hour Ozone Nonattainment Areas in U.S. under 70 ppb Standard

The democrats from House Department on Energy and Commerce share the dissenting views on the HR-806. The National Parks Conservation Association statement claimed, "This legislation would actually systematically weaken the Clean Air Act without a single improvement, undermine Americans’ 46-year right to healthy air based on medical science, and delay life-saving health standards already years overdue."

 

Clearly, there are strong and widely varying opinions on how best to proceed. It will be interesting to hear the Senate discussions if this comes up for debate.

 

 

Tags: USA Emissions, EPA, Air Pollution, Emission Standards, News

Troubleshooting the Series 4000/4020/4040 - No/Low Flow Issues

Posted by Rachel Stansel on Thu, Sep 28, 2017 @ 10:51 AM

series 4000 gas mixing system

The Environics® Model 4000 are a trio of units that can automatically mixes up to seven individual gases in a balance gas or dilute up to 10,000:1 (or higher, dependent on your setup). The gas mixes can be used in generating precise gas calibration standards, creating gaseous atmospheres or producing gas mixes for analytical research or production purposes. The units can produce gas concentrations from percent to ppb levels for single or multi-point calibration, allowing you to use fewer cylinders.

All 4000/4040/4020 consists of two components: the instrument and the user's personal computer. The user interface is a Microsoft® Windows application that communicates with the Environics system via a USB (now standard) or RS232 serial interface. Check out of video series on using the Windows 7/8/10 software.

 

Last time we looked at issues with communication. Today, we will troubleshoot low/no flow issues with one or more mass flow controllers (MFCs). Customers who work on their units accept the risks of working on machinery and are responsible for taking all proper safety precautions. If in doubt, contact our service department!


Zero or low flow from one or more MFCs

Note: There are two versions of the Series 4000/4040/4020. You confirm which version you have by checking the order or the serial number label on the rear of the unit. 4000/4040/4020 are the original revision, have a PC401 and PC402 board and have RS232 standard. N4000/N4020/N4040, which have USB standard, are the more recent revision and have a single board, the PC405. 

  1. Begin by making sure your gas is hooked up to the correct input port/s. Check and adjust input pressures if necessary.  Nominal pressure is 25 PSIG.
  2. Once you have confirmed your input is correct, if the problem continues, remove all output connections to the system and try again. This will insure that the problem is not back pressure related.
  3. If the green status light is not blinking, this suggests a power issue. This can be confirmed (since it is possible the light is just burnt out) by checking the power test points as outlined in our previous troubleshooting post.
  4. It is critical to be sure the setup and calibration tables in the system are correct. We would recommend you reinitialize the system to make sure that all of the setup is correct for the unit. It is a quick process and is outlined in this Technical Bulletin. Once you run this process, you can try to flow again and see if the problem is corrected.
  5. If you are still seeing an issue, remove the cover of the unit and verify all of the MFC cables are securely latched.
  6. If you are still no seeing flow, you can run the problem MFC in the calibration mode to see if the problem exists there as well. This will insure that the problem is not related to any issues with cylinder or program setup. In our latest software, this is done by clicking the Instruments button and then the Calibration tab. For each MFC, click on the 100% calibration point and then click Start.

s4000 flow test.png

While flowing, you can measure the command and response voltages of the MFC on the PC402 or PC405 (see below).

For the PC402 - This will be the odd test points (TPs) in the red area from top to bottom for MFC1 through MFC4 respectively. TP2 is the brown analog ground test point shown in the black squared area. PC402 MFC TPs

For the PC405 - This will be the odd TPs in the red area from right to left for MFC1 through MFC8 respectively. TP6 is the brown analog ground test point for negative (black) meter lead, shown in the black squared area. PC405 MFC TPs.jpg

1. If your command voltage is approximately +5V, measure corresponding MFC response test point. The response voltage should be very close to the command voltage (~5V).

For the PC402 - This will be the even TPs in the red area from top to bottom for MFC1 through MFC4 respectively. TP2 is the brown analog ground test point shown in the black squared area.

For the PC405 - This will be the even TPs in the red area from right to left for MFC1 through MFC8 respectively. TP6 is the brown analog ground test point for negative (black) meter lead, shown in the black squared area.

2. If the command is good but response voltage is low or 0, there may either be a problem with the MFC cable or the MFC. Try swapping the MFC cable and repeating the test. If these things fail to fix the problem, the issue is most likely the MFC itself. It could be that the solenoid is not opening properly. You should contact us for assistance in getting this resolved.

3. If your command voltage is NOT +5V and you setup is correct, you most likely have an issue in the PC401/PC402 or PC405. You should contact us for assistance in getting this resolved.

 

As always, we are here to answer any questions or concerns!

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Tags: Service, Troubleshooting, troubleshooting4040, troubleshooting4020, troubleshooting4000

Troubleshooting the Series 4000/4020/4040 - Communication Troubles

Posted by Rachel Stansel on Tue, Sep 19, 2017 @ 11:10 AM

series 4000 gas mixing system

The Environics® Model 4000 are a trio of units that can automatically mixes up to seven individual gases in a balance gas or dilute up to 10,000:1 (or higher, dependent on your setup). The gas mixes can be used in generating precise gas calibration standards, creating gaseous atmospheres or producing gas mixes for analytical research or production purposes. The units can produce gas concentrations from percent to ppb levels for single or multi-point calibration, allowing you to use fewer cylinders.

All 4000/4040/4020 consists of two components: the instrument and the user's personal computer. The user interface is a Microsoft® Windows application that communicates with the Environics system via a USB (now standard) or RS232 serial interface. Check out of video series on using the Windows 7/8/10 software.

We will be looking at some common questions for the Model 4000.  Let us know if you have a specific issue you'd like us to cover!

Note: There are two versions of the Series 4000/4040/4020. You confirm which version you have by checking the order or the serial number label on the rear of the unit. 4000/4040/4020 are the original revision, have a PC401 and PC402 board and have RS232 standard. N4000/N4020/N4040, which have USB standard, are the more recent revision and have a single board, the PC405. 

 

Unit Not Communicating with the Computer

If you cannot get the unit to communicate with the computer software, or if you are losing connection when you attempt to start the system, here are some things to check. Customers who work on their units accept the risks of working on machinery and are responsible for taking all proper safety precautions. If in doubt, contact our service department!

1. Make sure the RS232 or USB are connected completely both to the unit and the computer. Verify the unit is powered on and that the correct COM port is selected in the software. We recommend only using the connectors and adapters provided with the unit.

2. Check to see if the green status light is blinking. If it is not, you can check to make sure the boards are getting power.

If the unit has a PC401/402, the test points to check the power are on the top edge of the PC402 (mounted on the left side panel when looked at from the front):

PC412 test points

If the unit has a PC405 (mounted on the right side panel when looked at from the front), the test points are labeled:

PC405 test points

You can also verify that the battery is at least 2.7V. This is checked on the PC401 only as below (units with a PC405 (N4000/4040/4020) do not have a battery).

checking S4000 battery

If the board is getting proper power and the battery is good, you might have an issue with your PC401 (4000/4040/402) or PC405 (N4000/N4040/N4020). We recommend contacting our service department for more guidance.

3. If the light is blinking, the instrument's configuration data may be corrupted. You will want to reinitialize the system using Tech107. This procedure will let you confirm that the calibration data is in error, and show you how to restore it.

If the unit still will not communicate after these checks, we'd suggest giving us a call (860-872-1111) or sending a service request.


Next time we will cover what to do if you are having issues related to flow! Subscribe to the blog (look up and on the right) so you don't miss a thing!

 

 

Tags: Service, Troubleshooting, troubleshooting4040, troubleshooting4020, troubleshooting4000

In the News : Hypoxia Training with the Reduced Oxygen Breathing Device

Posted by Rachel Stansel on Tue, Aug 01, 2017 @ 11:24 AM

Several Air Force bases in the United States have recently unveiled their new Reduced Oxygen Breathing Devices (ROBD). The ROBD simulates altitude exposure and can be utilized for both research and training purposes. The U. S. Armed Forces use the ROBD 2 to train aircrew to recognize the signs and symptoms of hypoxia and to perform the appropriate emergency procedures. Congratulations to these sites on their new facilities!

Scott Air Force Base

"The ROBD will be used by Airmen assigned to 375th Air Mobility Wing, 932nd Airlift Wing, and 126th Air Refueling Wing who routinely fly at altitudes requiring supplemental oxygen."

(375th Air Mobility Wing Public Affairs; U.S. Air Force Photo by Airman Daniel Garcia)

 

Tags: USA Emissions, EPA, Air Pollution, Emission Standards

Join our Team!

Posted by Rachel Stansel on Thu, Jul 20, 2017 @ 10:10 AM

environics-logo.jpgWe are happy to say that our current VP of Sales is gearing up to retire. That means you have a chance to join our team. We are looking for a new Director of Worldwide Sales. We would like to find someone who has technical experience with gas flow management and an interest in sales. To apply, send your resume to [email protected]

 

Position Function:

Develop sales activity and provide leadership towards the achievement of maximum profitability and growth in line with the company vision and values. Target current customers and markets as well as develop additional markets to increase sales. Provide feedback to management, manufacturing and engineering to ensure customer requirements are met.

Responsibilities: To include but not limited to the followin

  • Develops annual sales plans to that ensure attainment of company goals for sales and profitability.
  • Drives sales growth through direct effort and support of the sales organization particularly related to quote generation and product training.
  • Initiates and coordinates development of action plans to penetrate new markets.
  • Manage internal sales, manufacturer representatives and direct account responsibility for distributors of worldwide sales.
  • Provides timely, accurate, pricing reviews, and submittals, while striving to maintain maximum profit margin.
  • Maintain and develop existing and new customer relationships through planned individual account support, liaison between engineering and appropriate distributors and representatives and with inside sales.
  • Assists in the development and implementation of marketing plans and new product opportunities

Requirements and Specifications:

  • 5 to 7 years of experience in sales management.
  • Technical knowledge and experience within the gas flow management systems.
  • Excellent verbal and written communication skills.
  • Team player who can work with any level in the organization.
  • Ability and willingness to travel as required.
  • Knowledge of database, spreadsheet and document development in MS Office.
  • Local candidates preferred.

 

Tags: Environics Inc, Team

Using with Program Mode - Win 7/8/10 Software for the Model 4000

Posted by Rachel Stansel on Wed, Jul 19, 2017 @ 10:21 AM

While many customers are accustomed to our operating software for the Series 4000/4020/4040, most are now beginning to use to our newest software as they upgrade to new computers with Win 7/8/10. To help you get started, or as a refresher if it's been awhile, we will be posting some short how-to videos that will help you get set up and running your unit like a pro in no time.

The software can be downloaded here. We recommend making sure you have the most current version by bookmarking the download page. You can also sign up for automatic notices of new versions by submitting a request through our contact page.

Today, we look at program mode. ProgramModeProgram mode allows the three basic run modes (Concentration, Flow and Divider) to be grouped together into a "Program," or sequence of operations. Each step in the program is executed in sequence until all steps have been completed. So, before you can set up a program, you will need to have set up all of the necessary concentration, flow or divider modes. You can check out our earlier videos to learn how to do that.

To check out the earlier videos and to be notified as we post the other videos in this series, subscribe to the blog (above) or to our YouTube Channel!

 


 

 

Tags: Series 4040, Series 4020, Series 4000 Software Video Tutorials, Series 4000

Using with Divider Mode - Win 7/8/10 Software for the Model 4000

Posted by Rachel Stansel on Thu, Jul 13, 2017 @ 12:08 PM

While many customers are accustomed to our operating software for the Series 4000/4020/4040, most are now beginning to use to our newest software as they upgrade to new computers with Win 7/8/10. To help you get started, or as a refresher if it's been awhile, we will be posting some short how-to videos that will help you get set up and running your unit like a pro in no time.

The software can be downloaded here. We recommend making sure you have the most current version by bookmarking the download page. You can also sign up for automatic notices of new versions by submitting a request through our contact page.

Today, we look at divider mode. Unlike flow and concentration mode, not all units are configured to be able to use divider mode. If you aren't sure, feel free to ask us!

To check out the earlier videos and to be notified as we post the other videos in this series, subscribe to the blog (above) or to our YouTube Channel!

 

 

 

Tags: Series 4040, Series 4020, Series 4000 Software Video Tutorials, Series 4000

This Week in the News : Ozone Standards Implementation Act of 2017

Posted by Rachel Stansel on Thu, Jun 29, 2017 @ 08:31 AM

This week, the US House of Representative's Committee on Energy and Commerce Subcommittee discussed H.R. 806, known as the Ozone Standards Implementation Act of 2017. HR 806 was introduced on February 1, 2017 by Pete Olson, the Representative for Texas's 22nd congressional district and cosponsored by Mr. Flores, Mr. Latta, Mr. Bishop of Georgia, Mr. McCarthy, Mr. Cuellar, Mr. Scalise, Mr. Costa, Mr. Cramer, Mr. Long, Mr. Jenkins of West Virginia, Mr. Burgess, Mr. Renacci, Mr. Hensarling, Mr. McKinley, Mr. Guthrie, Mr. Bucshon, Mr. Johnson of Ohio, Mr. Weber of Texas, and Mr. Babin. CT AT.jpg

According to the bill, the goal is "to facilitate efficient State implementation of ground-level ozone standards, and for other purposes." One of the key changes is in the timeline for review the guidelines for all criteria air pollutants of the national ambient air quality standards. Currently, the standard must be reviewed every 5 years. This bill aims to change this to every 10 years. Another change which reflects the overall theme heard from EPA Administroator Pruitt is within the "plan submissions and requirements for ozone non attainment areas" section. The phrase "and economic feasibility" is proposed to be added. This parallel's the new administration's statements that they want to remove the burden on businesses to meet regulation standards.

The Senate is considering a bill in parallel that states the same changes. This is S. 263: Ozone Standards Implementation Act of 2017, introduced by ShelleyMr. Flake, Mr. Manchin, Mrs. Fischer, Mr. Cornyn, and Mr. Inhofe. Also introduced on February 1, the bill was considered by Clean Air and Nuclear Safety on May 23rd.

To learn more about the health effects of ozone, check out the US EPA's ozone page or the Health Effects of Ozone published by the European Environment Agency. To follow these bills, you can request email alerts for either HR 806 or S263.

 

Tags: USA Emissions, EPA, Air Pollution, Emission Standards

This Week in the News : US EPA Budget Hearings

Posted by Rachel Stansel on Fri, Jun 16, 2017 @ 09:14 AM

This week, the US House of Representative's Appropriations Subcommittee held hearings to discuss President Trump’s 2018 budget request for the EPA. Newly appointed EPA Administrator Scott Pruit testified before the subcommittee regarding the proposed 30% cut to the EPA budget and the impact this might have both in terms of funding for various projects as well as the workforce reduction. The hearing lasted about two hours, with Representatives from both parties asking Administrator Pruitt questions about the cut. The main focus was the impact such cuts would have on the local and regional air, water and land pollution protection/cleanup programs that exist within their districts.

What are your thoughts?

Tags: USA Emissions, EPA, Air Pollution, Emission Standards