Critical Environment Technologies Canada Inc. (CETCI) professionally coats the interior of all non-metallic system enclosures with a protective electromagnetic interference (EMI) coating for all their gas detection monitors and selective YES branded air quality instruments. This coating is designed to reduce or eliminate potential EMI and radio frequency interference (RFI).

For more than five years, CETCI has tested the EMI coating on the YESAIR. With good results, CETCI has decided to coat all their non-metallic enclosure products with the EMI coating. EMI / RFI shielding provides a high-level of protection without affecting the appearance or operation of the enclosure.

With the amount of electronic equipment being used nowadays, millions of waves and signals float through the air. Therefore, it’s important to protect the product from incorrect frequencies from interfering with the device. Applications, such as ambulance stations, may benefit the most from this as they have large transceivers and compressor / refrigeration rooms that use high voltage equipment.

Benefits to having a non-metallic enclosures includes reduced shipping cost due to the lighter weight of the product, easier installation due to being able to take apart the cover and base, reduced cost to produce a product resulting in savings passed onto the customers, and easier handling due to size and weight. With the many benefits of using non-metallic enclosures, CETCI feels that they are providing more value and a better product to their end users.

For more information on the entire range of gas detection systems and IAQ instruments, please visit www.critical-environment.com.

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Since Critical Environment Technologies Canada Inc. (CETCI) launched the Parkade Emissions Transmitter (PET) in September 2010, interests have spiked. PET is a highly competitive and versatile BACnet^® transmitter that is cost effective and is available in five configuration models.

PET BACnet^® transmitter is BTL certified, communicates via BACnet^® protocol MS/TP and is available with one or two electrochemical or solid-state sensors and temperature sensor. PET features thermal resetting fuse, tri-color LED indicators for power and alarm, optional 4-digit LED display, optional remote solid state sensor housing, and an optional 4-20 mA analog input for solid state sensors. In addition, PET includes a new sensor Calibration Extending Firmware (CEF) that takes into account the aging of the sensors so that less frequent calibrations are acceptable in non-critical applications.

Given that PET is available as a dual sensor transmitter; contractors will only need to purchase one unit, instead of two single sensor transmitter units. This could end up being a 30% cost saving. As a standard feature, both single and dual PET comes with a complimentary temperature sensor. There is no need to purchase and install a separate temperature device. All gas and temperature sensor values will be displayed at the same time, on a single unit. Not only is it cost effective to the contractor but is less time and money spent on installation.

PET is available in five configuration models:

• Single integral electrochemical sensor
• Dual integral electrochemical sensor
• Single integral solid-state sensor
• Single remote solid-state sensor
• Single integral solid-state sensor with 4-20 mA input activated for remote analog transmitter

Electrochemical sensor choices include ammonia (NH₃), carbon monoxide (CO), ethylene (C₂H₄), formaldehyde (HCHO), hydrogen (H₂), nitric oxide (NO), nitrogen dioxide (NO₂), oxygen (O₂), and sulphur dioxide (SO₂). This can be either a single or dual integral transmitter.

Solid state sensor choices include combustibles, TVOCs and refrigerants R11, R12, R22, and R134A. This can be either a single integral, single remote or single integral with analog input capabilities. For the later configuration model, any 24 VDC analog transmitters that output 4-20 mA can be connected to the PET and is powered by the PET. The PET in turn, converts the data to the BACnet^® protocol along with the integral solid-state sensor and temperature value.

PET is ideal for use in non-hazardous vehicle exhaust environments, commercial HVAC and light industrial applications.

For more information on the entire range of gas detection systems and IAQ instruments, please visit www.critical-environment.com.

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Critical Environment Technologies Canada Inc. (CETCI) is proud to receive the BACnet^® Testing Laboratories (BTL) certification for PET BACnet^® gas detection transmitter on October 15, 2010.

BTL was established by BACnet^® International to test product functionalities based on the BACnet^® standards. BTL’s mandatory requirements must be met in order to be BTL listed.

PET BACnet^® gas detection transmitter has passed the BTL requirements for the BACnet^® Smart Sensor (B-SS) designation. PET is a “Parkade Emissions Transmitter” that communicates via BACnet^® protocol MS/TP and is available with one or two electrochemical sensors or solid-state sensor and temperature sensor. Electrochemical sensor choices include ammonia (NH₃), chlorine (Cl₂), carbon monoxide (CO), ethylene (C₂H₄), formaldehyde (HCHO), hydrogen (H₂), hydrogen sulphide (H₂S), nitric oxide (NO), nitrogen dioxide (NO₂), oxygen (O₂), ozone (O₃), and sulphur dioxide (SO₂). Solid state sensor choices include combustibles and refrigerants. PET features thermal resetting fuse, tri-color LED indicators for power and alarm, and an optional 4-digit LED display. In addition, PET includes a new sensor Calibration Extending Firmware (CEF) that takes into account the aging of the sensors so that less frequent calibrations are acceptable in non-critical applications. PET is ideal for use in non-hazardous vehicle exhaust environments, commercial HVAC and light industrial applications.

Every CETCI product is designed to deliver years of reliable operation and is easy to operate.

For more information on the entire range of gas detection systems and IAQ instruments, please visit www.critical-environment.com.

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Simply visit www.critical-environment.com, subscribe to CETCI Magazine Blog, find us on Facebook, follow us on Twitter: @cetci, connect with us on LinkedIn, or subscribe to our RSS feed.

Critical Environment Technologies Canada Inc. (CETCI) is proud to announce the launch of PET BACnet gas detection transmitter.

PET is a new economical Parkade Emissions Transmitter that communicates via BACnet protocol MS/TP signal. It is available with electrochemical and temperature sensors to detect carbon monoxide (CO), nitric oxide (NO), nitrogen dioxide (NO₂), sulphur dioxide (SO₂), oxygen (O₂), and temperature. Features include thermal resetting fuse, tri-color LED indicator for power and alarm, and an optional 4-digit LED display. It includes new sensor CEF (Calibration Extending Firmware) that takes into account the aging of the sensors so that less frequent calibrations are acceptable in non-critical applications. Calibration and maintenance procedures are easily performed in the field without requiring access to the controller. PET is ideal for use in non-hazardous vehicle exhaust environments, commercial HVAC and light industrial applications.

Every CETCI product is designed to deliver years of reliable operation and is easy to operate.

For more information on the entire range of gas detection systems and IAQ instruments, please visit www.critical-environment.com.

Want to be the first to be notified on updates?

Simply visit www.critical-environment.com, subscribe to CETCI Magazine Blog, find us on Facebook, follow us on Twitter: @cetci, connect with us on LinkedIn, or subscribe to our RSS feed.

Critical Environment Technologies Canada Inc. (CETCI) officially launches GEM multi-purpose, self-contained gas detector to add to their growing product line.

GEM is a Gas Emissions Monitor that is economical for non-hazardous commercial applications. Applications include, but are not limited to, parking garages, repair shops, arenas, and manufacturing plants. It is available in one or two channel configurations accommodating accurate “smart” sensors. Features include CSA/UL/CE certifications, integral and/or remote sensors, two 5-amp dry contact relays,4-20 mA linear output signal, and optional 4-digit LED display. It includes new sensor CEF (Calibration Extending Firmware) that takes into account the aging of the sensors so that less frequent calibrations are acceptable in non-critical applications.

Every CETCI product is designed to deliver years of reliable operation and is easy to operate.

For more information on the entire range of gas detection systems and IAQ instruments, please visit www.critical-environment.com.

Want to be the first to be notified on updates?

Simply visit www.critical-environment.com, subscribe to CETCI Magazine Blog, find us on Facebook, follow us on Twitter: @cetci, connect with us on LinkedIn, or subscribe to our RSS feed.

The easiest way to check if your house is encapsulating gases is to monitor the carbon dioxide (CO₂) levels. This one gas is used as a marker for air quality, is the easiest to monitor, and provides a more accurate air quality reading.

It is a good trend indicator because it changes in measurable amounts as the air quality gets worse. All other gasses in the house follow the same trend as the CO₂. Most commercial air quality controls are based on CO₂ levels.

It is the easiest to monitor simply because as the air quality gets worse, the levels increase. Outside air has an average of 350 – 450 ppm of CO₂. Inside, the levels raise to values of 550 – 700 ppm. In office buildings, the HVAC systems will keep the levels below 800 ppm.

Monitoring the CO₂ levels is relatively inexpensive and more accurate compared to monitoring any of the other gases that are in your home such as carbon monoxide (CO) and TVOC. It is more accurate in that it does not change based on individual problems.

CO Monitors

CO monitors are commonly sold at the local hardware store. The problem with CO monitors is that it always reads 0 ppm. This reading does not mean that you are safe because it is only looking for the CO gas that is produced by cars and things that are burning. The reason CO monitors are so common is that a large part of the world uses natural gas to cook their food and if this gas is not burned correctly it can produce CO. This monitor does not tell you what your air quality is. It is used for a specific purpose which is to detect CO.

TVOC Monitors

TVOC monitors are expensive and can cost thousands of dollars. You would think you are safe because it always reads less than 0.04 ppm. If you just purchased a new desk that is manufactured in a country that is not regulated, you will see an increase in your TVOC values but how do you know which type of VOC it is? Within a week or two, the levels will then return to values of about 0.05 ppm. This may take several months to a couple of years for the VOCs to stop off gassing from the desk and return to less than 0.04 ppm. It’s impossible to say the increase or decrease was due to formaldehyde or hydrogen sulphide. It’s also impossible to identify what combination of VOC made up the TVOC reading.

CO₂ Monitors

CO2 monitor is like a smoke detector and looks at the general problem. If a smoke detector only went off if the fire was caused by burning macaroni and cheese it may save your life but the odds are lower than if it detects all the source of fire. The CO₂ monitor does not detect all the source of poor air quality but it tells you if you are in a location that has poor air quality or even bad air quality and this means the levels of all the gases that can have effects on your quality of life are higher.

Written by: Richard Grant, Service Department Supervisor