Air Quality & Gas Detection

The QIRF Refrigerant Gas Detectors are the second generation of a proprietary designed gas detector that is easily confi­gured to meet the International Mechanical Code, ASHRAE 15 and B52 requirements. These transmitters are engineered to address the de­ficiencies inherent with solid-state sensors. Infrared technology facilitates specifi­c gas type refrigerant detection without any cross-sensitive interferences. Standard features include a digital display, three user con­figurable relays, buzzer, horn/strobe output, NEMA 4X enclosure and non-intrusive calibration. Sensor Housings are thermally controlled at elevated temperatures to eliminate errors due to condensation forming and from temperature fluctuations allowing operations in temperatures from -49 to 149ºF (-45 to 65ºC). Analog outputs of 4-20 mA and or 2-10 VDC are available along with RS-485 Communications that can be used with a Modbus RTU or proprietary OptoMux communication protocol for use with any of the standalone gas controller such as the Q4C, M-Controller or Q-Controller. A Zero gas of 20.9% Oxygen with the balance Nitrogen should be used to perform a Zero calibration while a known concentration of any span gas can be used to perform yearly bump testing and calibration. Never use 100% Nitrogen gas to perform a Zero calibration on the QIRF transmitters. Calibration gases and a 0.4 to 0.6 liter/minute ‑ow limiting gas regulator are not available through ACI and should be purchased through your local gas supply company or on-line companies such as Portagas® (Praxair®, Inc.) or Mesa Specialty Gases®. ACI also offers a full line of horns and strobes that can be used with the Gas detectors or building management system to alert building occupants of an alarm condition in order to meet the B-52 or other code requirements. Refer to all applicable Federal, State, Provincial and Local Health and Safety laws and regulations before using these products.

The Q8/B8 Series of Explosion Proof Gas Detectors are used in applications that require a rugged enclosure that meets the Class 1 Division 2 requirements. Each unit comes standard with an integral clock, digital display of concentration, relay status, STEL, TWA, and peak daily values of the gas being detected. A three color backlight will ash depending on the level of alarm for operator safety. Setup and calibration is accomplished through non-intrusive magnetic switches that allow for programming of all parameters. A remote sensor option is available for toxic and combustible gases and should be used in applications where the main unit can be mounted at 3 to 6 feet o of the oor with the remote sensor being at the ceiling or oor levels to monitor the gas concentrations depending on the gas being monitored. Sensor types include electrochemical and catalytic bead sensors to meet the demand and performance requirements for particular industries. The Q8 uses Optomux and Modbus RS-485 protocol, 4-20 mA, 1-5 or 2-10 VDC while the B8 uses BACnet™ MSTP(RS485) protocol to communicate directly with a BAS. The Q8/B8 also has three (3) SPDT Form 1C relays that are user adjustable. Calibration gases and 0.2 to 1 liter/minute ow limiting gas regulators are not available through ACI and should be purchased through your local gas supply company or companies such as Portagas® (Praxair®, Inc.) or Mesa Specialty Gases®. Refer to all applicable Federal, State, Provincial and Local Health and Safety laws and regulations before using these products. The Q8/B8-GENL can be ordered to monitor specic combustible gases such as Gasoline, Ethanol, Diesel or Jet fuel. Contact ACI for specic gases. Applications: Mechanical Rooms, Warehouses, Refrigeration Plants, Industrial Plants, Process Monitoring, Leak Detection, Parking Garages, Auto/Truck Maintenance Facilities, Oil and Gas Industry

The Q8 Series of Explosion Proof Gas Detectors are used in applications that require a rugged enclosure that meets the Class 1 Division 2 requirements.   Each unit comes standard with an integral clock, digital display of concentration, relay status, STEL, TWA, and peak daily values of the gas being detected. A three-color backlight will flash depending on the level of alarm for operator safety. Setup and calibration is accomplished through non-intrusive magnetic switches that allow for programming of all parameters. A remote sensor option is available for toxic and combustible gases and should be used in applications where the main unit can be mounted at 3 to 6 feet off of the floor with the remote sensor being at the ceiling or floor levels to monitor the gas concentrations depending on the gas being monitored. Sensor types include electrochemical and catalytic bead sensors to meet the demand and performance requirements for particular industries. The Q8 uses Optomux and Modbus RS-485 protocol, 4-20 mA, 1-5 or 2-10 VDC and 3 SPDT Form 1C user adjustable relay contacts.

“Particulate matter” (PM) is the general term used to describe solid particles and liquid droplets found in the air. The PM2.5 series of transmitters are designed to detect Particles less than 2.5 μm in diameter include smoke, smog, bacteria, _ne dust and liquid droplets, and report the particle concentration of the monitored environment.

“Particulate matter” (PM) is the general term used to describe solid particles and liquid droplets found in the air. The PM2.5 series of transmitters are designed to detect Particles less than 2.5 μm in diameter include smoke, smog, bacteria, _ne dust and liquid droplets, and report the particle concentration of the monitored environment.

“Particulate matter” (PM) is the general term used to describe solid particles and liquid droplets found in the air. The PM2.5 series of transmitters are designed to detect Particles less than 2.5 μm in diameter include smoke, smog, bacteria, _ne dust and liquid droplets, and report the particle concentration of the monitored environment.

VOCs are emitted as gases from certain solids or liquids, such as building materials and furnishings, office equipment, cleansers and disinfectants, etc. These types of contaminants directly a‑effect indoor air quality and occupant comfort. Measuring and communicating VOC levels back to the BAS will help users adjust ventilation to maintain proper IAQ levels. These units utilize a high-performance metal oxide sensor and will output TVOC levels in a range from 0-1000 ppb. All units come equipped with both analog and RS485 Modbus RTU outputs easily interface into existing BAS systems.

VOCs are emitted as gases from certain solids or liquids, such as building materials and furnishings, office equipment, cleansers and disinfectants, etc. These types of contaminants directly a‑effect indoor air quality and occupant comfort. Measuring and communicating VOC levels back to the BAS will help users adjust ventilation to maintain proper IAQ levels. These units utilize a high-performance metal oxide sensor and will output TVOC levels in a range from 0-1000 ppb. All units come equipped with both analog and RS485 Modbus RTU outputs easily interface into existing BAS systems.

VOCs are emitted as gases from certain solids or liquids, such as building materials and furnishings, office equipment, cleansers and disinfectants, etc. These types of contaminants directly a‑effect indoor air quality and occupant comfort. Measuring and communicating VOC levels back to the BAS will help users adjust ventilation to maintain proper IAQ levels. These units utilize a high-performance metal oxide sensor and will output TVOC levels in a range from 0-1000 ppb. All units come equipped with both analog and RS485 Modbus RTU outputs easily interface into existing BAS systems.

The ACI CO2 (A/CO2 R2) room transmitter monitors the carbon dioxide (CO2) levels in industrial, school, and office type environments. The concentration of CO2 is a strong indication of the overall indoor air quality.  The A/CO2 Series is based on a single beam, non dispersive infrared technology and is a cost efficient solution for measuring carbon dioxide (CO2) levels for building climate control. In addition, ABC software eliminates the need for manual calibration. Carbon Dioxide concentration is measured up to 2,000 ppm and is converted into proportional analog outputs. The factory default output is 4-20 mA, whereas 0-5 VDC and 0-10 VDC outputs are able to be field selected via integral dip switches. Thermistor temperature outputs, along with setpoint and override, are available as options for room configurations. The A/CO2 Series provides data which can be used in conjunction with a Building Automation System or Demand Control Ventilation to decrease energy consumption while creating a healthier indoor climate. The A/CO2 Series is covered by ACI's Five (5) Year Limited Warranty. Carbon Dioxide sensors or transmitters for HVAC, Building Automation Systems, or ANSI/ASHRAE Standard 62.1 2007. Typical applications include: schools, office buildings, auditoriums, gymnasiums, shopping malls, theatres, Demand Control Ventilation, or economizers.

The ACI CO2 (A/CO2 R2) room transmitter monitors the carbon dioxide (CO2) levels in industrial, school, and office type environments. The concentration of CO2 is a strong indication of the overall indoor air quality.  The A/CO2 Series is based on a single beam, non dispersive infrared technology and is a cost efficient solution for measuring carbon dioxide (CO2) levels for building climate control. In addition, ABC software eliminates the need for manual calibration. Carbon Dioxide concentration is measured up to 2,000 ppm and is converted into proportional analog outputs. The factory default output is 4-20 mA, whereas 0-5 VDC and 0-10 VDC outputs are able to be field selected via integral dip switches. Thermistor temperature outputs, along with setpoint and override, are available as options for room configurations. The A/CO2 Series provides data which can be used in conjunction with a Building Automation System or Demand Control Ventilation to decrease energy consumption while creating a healthier indoor climate. The A/CO2 Series is covered by ACI's Five (5) Year Limited Warranty. Carbon Dioxide sensors or transmitters for HVAC, Building Automation Systems, or ANSI/ASHRAE Standard 62.1 2007. Typical applications include: schools, office buildings, auditoriums, gymnasiums, shopping malls, theatres, Demand Control Ventilation, or economizers.

The ACI CO2 (A/CO2 R2) room transmitter monitors the carbon dioxide (CO2) levels in industrial, school, and office type environments. The concentration of CO2 is a strong indication of the overall indoor air quality.  The A/CO2 Series is based on a single beam, non dispersive infrared technology and is a cost efficient solution for measuring carbon dioxide (CO2) levels for building climate control. In addition, ABC software eliminates the need for manual calibration. Carbon Dioxide concentration is measured up to 2,000 ppm and is converted into proportional analog outputs. The factory default output is 4-20 mA, whereas 0-5 VDC and 0-10 VDC outputs are able to be field selected via integral dip switches. Thermistor temperature outputs, along with setpoint and override, are available as options for room configurations. The A/CO2 Series provides data which can be used in conjunction with a Building Automation System or Demand Control Ventilation to decrease energy consumption while creating a healthier indoor climate. The A/CO2 Series is covered by ACI's Five (5) Year Limited Warranty. Carbon Dioxide sensors or transmitters for HVAC, Building Automation Systems, or ANSI/ASHRAE Standard 62.1 2007. Typical applications include: schools, office buildings, auditoriums, gymnasiums, shopping malls, theatres, Demand Control Ventilation, or economizers.