Tuesday, February 12, 2019

Selecting the Right Gas Detection Solution

Honeywell gas detection
XNX™ Universal Transmitter
Reprinted from https://www.honeywellanalytics.com. Original article by Don Galman. 

There are many gas detection products on the market that might appear to be the same, but a closer inspection of specification, functionality and features reveals major differences in what products can do and the potential value they can offer. Similarly, individual applications are also unique in their respective designs, needs and processes undertaken.

Know your site risks

Before beginning to consider gas detection equipment, a risk assessment needs to be conducted. Any company employing staff has the obligation to conduct risk assessments to identify potential hazards and these can include potential gas, vapor or Oxygen deficiency risks. If gas hazards are identified, gas detection is applicable as a risk reduction method.

Identifying the prime objective

Depending on the processes being undertaken and the gases being detected, remote or off-site alarm notification plus event data logging/reporting may also be required for Health and Safety management records. Another factor impacting on the need for enhanced reporting functions might be regulatory compliance or a condition of insurance.

Ask the right questions

Having identified the primary objective, the suitable equipment is selected by asking a number of key questions. These fall into three broad categories:

• The gases to be detected and where they may come from

• The location and environmental conditions where detection is to take place

• The ease of use for operators and routine servicing personnel

Identify the gases to be detected and where they may come from

The gases to be detected should be identified by the risk assessment, however experienced gas detection equipment manufacturers and their approved distributors are often able to help in this process, based on their experience of similar applications. However, it is important to remember that it is the end-user’s responsibility to identify all potential hazards.

It is also essential to identify the potential source of a gas release as this helps determine the number and location of detectors required for a fixed gas detection system.

Consider the environmental conditions

Honeywell gas detection
Sensepoint XCD
The performance, accuracy and reliability of any gas detection equipment will be affected by the environmental conditions it is subjected to. Temperature, humidity and pressure levels at the location all have a direct bearing on the type of equipment that should be selected. Additional factors such as potential variations resulting from a production process itself, diurnal/nocturnal fluctuations and seasonal changes may also affect the type of device which is suitable.

Understand product functionality

The next area of consideration relates to additional product functionality. Aspects like wiring configuration are important, especially when retro-fitting into an existing application. If the apparatus is being integrated into a separate safety system, certain communication protocols may also be required such as HART®, Lonworks or Modbus®.

Consideration will also need to be given regarding the requirement for local displays on transmitter units and local configuration of the unit and gas displays may also be a useful addition.

Measure the ease of use for operators and routine servicing personnel

Routine maintenance is another important consideration. Some gases and vapors can be detected with a number of different sensing technologies, e.g. Hydrocarbon gases with catalytic beads or Non-dispersive Infrared NDIR. Catalytic beads do not provide fail-to-safety operation and therefore can require a high frequency of routine maintenance, however NDIR based solutions tend to have a higher initial purchase price, but may require less routine maintenance. In-house resource to undertake such routine maintenance needs to be identified and in the absence of such a resource, budgeting for third party maintenance is an important factor in selecting the right equipment.

For more information on Honeywell hazardous or flammable gas detection, contact Arjay Automation by calling (800) 761-1749 or visiting https://arjaynet.com.

Thursday, January 31, 2019

Arjay Automation: We Solve Process Control Problems


Arjay Automation is a Manufacturer’s representative with extensive experience in the application and sale of controls and instrumentation for industrial and utility automation. Our real strength is solving problems in process control, flowmeter selection, analytical instrumentation, electrical watt hour metering, protective relaying and utility test equipment. Our sales people are technical and can offer help in applying technical products to meet our customer’s needs. Call us at (800) 761-1749 or visit our website at https://arjaynet.com.

Sunday, January 27, 2019

Wireless Technology in Industrial Automation

The use of wireless technology in industrial automation systems offers a number of potential benefits, from the obvious cost reduction brought about by the elimination of wiring to the availability of better plant information, improved productivity and better asset management.

However, its practical implementation faces a number of challenges: not least the present lack of a universally agreed standard. This article looks at some of these challenges and presents the approach being taken by Yokogawa.

You can download a PDF copy of "Wireless Technology in Industrial Automation" from this link.

Friday, January 11, 2019

Rotating Equipment Condition Monitoring: Critical to Safety, Production, and Profit


Rotating industrial and commercial machinery provides critical and non-critical functions to thousands of manufacturing and processing plants across many industries in the USA.

The detection of changes in a normal vibration pattern is one of several important parameters used to determine equipment deterioration and predict machinery breakdown. The sophisticated monitoring of vibration, along with other machinery operating variables, is known as condition monitoring.

By incorporating an equipment condition monitoring strategy for all your rotating equipment, everything from large large turbine generators to basic production line equipment, operators benefit from the establishment of planned maintenance outages and avoid the very costly down-time resulting from breakdowns and unplanned outages.

For more about equipment condition monitoring, contact Arjay Automation.
https://arjaynet.com
(800) 761-1749

Wednesday, December 12, 2018

Happy Holidays from Arjay Automation!


From all of us at Arjay Automation, we wish our customers, partners and vendors a safe and happy holiday season and a wonderful 2019!

Saturday, December 8, 2018

The Moore Industries SLD PC-Programmable Functional Safety Loop Display


Moore Industries’ universal SLD PC-Programmable Functional Safety Loop Display features a large integral display that shows real-time process status in mA, percent, or any designated 5-character Engineering units (EGU). The SLD is part of Moore Industries’ FS Functional Safety Series products. It is certified by exida as a SIL3 capable, non-interfering device for use in a safety loop.

FEATURES

  • SIL3 Capability. The SLD is certified by exida for non-interference in a safety loop. (It is not SIL3 assessed or certified to be used as part of the safety function).
  • Easy-to-read, customizable display. The SLD’s independently configured display features two rows of large characters that can be clearly read in the field and set to display any EGU.
  • 360° flexible mounting. When placed into one of our housings, the SLD can be mounted at any angle in nearly any environment.
  • Low voltage drop. Loop-powered by less than 2.3 Volts, the SLD can even be installed on burdened loops.
  • Loop Maintenance Zener Diode Option. Allows the SLD to be removed from the loop for maintenance without interrupting your safety function.
  • Custom and square root curves. Select a square root or linear curve from the library, or create your own. Use our software to input a table in one EGU and have the PC program convert it into a different EGU for display.


For more information, contact Arjay Automation at https://arjaynet.com or call (800) 761-1749.