TechNotes & Bulletins

"Detecting the Difference"

Technotes & Bulletins

Detcon fuses decades of "field" experience with engineering expertise to develop better products and innovative gas detection solutions. Today, Detcon is helping customers around the world ensure safety and maintain productivity at the highest level.

TechNotes & Bulletins

May 2011
Electrochem Sensor Technology
For more than 50 years the electrochemical sensor has played an important role in protecting lives and ensuring safety in the workplace. Detcon manufactures four sensor assemblies to monitor toxic gases using this electrochemical cell technology: Model DM-100, Model DM-700, and MicroSafe® Models DM-500/600. All are designed as easy-to-use field replaceable plug-in sensors with intelligent electronics and a non-intrusive operator interface using a hand-held magnet.

December 2010
Patented H2S MOS Sensor Passes ISA Performance
Committed to staying on the cutting edge of sensor technology, Detcon continues focusing its efforts on perfecting its state-of-the-art MOS H2S sensor.

November 2010
Sensitive PID Technology Made Field Reliable
Striving to make an already good product even better, Detcon has improved its Model PI-700 Photo-ionization gas detection sensor to better manage humidity drift and surface contamination, thus, creating a sensor that’s more reliable and durable in the field than any other sensor on the market.

September 2009
Solid State H2S MOS Calibration and Maintenance
This “Detcon Tech Note” outlines recommended calibration and maintenance procedures on all Detcon solid state MOS H2S sensors and is not intended to replace Detcon instruction manuals. Much of this material will be added to all instruction manuals.

February 2009
Harsh Location Sensor Accessories
Detcon manufactures two protective accessories for harsh location sensor installations – the Harsh Location Water Guard, and the Harsh Location Dust Guard. Both devices provide advanced protection and work in conjunction with the standard Detcon splash guard supplied with every sensor.

July 2008
Improved Solid State H2S MOS Sensor
Monitoring of hydrogen sulfide gas leaks is a critical safety system function in a variety of industrial applications. These applications exist in environments that include wide-ranging temperature and humidity, along with variable levels of highly corrosive compounds. Two sensor technologies have emerged as useful and reliable methods for H2S measurement: Solid State MOS and Electrochemical. Each of these technologies has specific attributes that the other does not share.

February 2008
Understanding and Implementing a Functional RS-485 Network
This article is intended to help clarify the details and correct application of a RS-485 network using Detcon equipment. It is also to help in understanding what RS-485 is, how to make it operate properly, and demystify some of the myths that seem to make it an undesirable and hard to install communications link.

December 2006
TechNotes - In This Issue
• Process Analyzers For Custody Transfer Points
• Detcon Model Series 700 Sensors Integrate HART
• WE'RE GROWING! - Expanded Facilities,
• New ERP System, New Faces

October 2006
TechNotes - In This Issue
• Detcon Model Series 700 Gas Detection Sensors Receive ATEX Certification & IEC61508 SIL2 Qualification
• Detcon Integrates Profibus
• Detcon Adds North America Business Development Manager

December 2004
De-coking of Ethylene Crackers
Every 30-35 days the cracker furnaces have to shut down for a de-coking cycle. The schedule is determined by loss of temperature across the tubes mounted inside the furnace and yield loss of cracked gas. When the furnaces are shut down, a steam and air mixture is pumped through the furnace tubes to clean the coke that has built up on the inside of the tube walls. To determine the de-coking cycle time, operations personnel will monitor the CO2 released by the coke as the steam and air mixture gets to work.

October 2003
Operational Guidelines for Highly Reactive Toxic Gas

HF, HCl, and CO2 are three of the most challenging gases to monitor for toxicity exposure. This is in part because the toxic exposure levels are quite low (< 10 ppm), and secondly due to the reactive nature of these gases. This combination presents a difficult challenge not observed in the monitoring of many other common toxic gases. In order to get a strong, fast and repeatable response from the electrochemical sensors for these gases, there are several factors that must be considered.

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