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B12 2-Wire Gas Transmitter
By Pragya Gupta

B12 2-Wire Gas Transmitter

ATi’s B12 2-Wire Gas Detector is a loop-powered transmitter for toxic gas detection with multiple sensor mounting configurations.

Monitoring hazardous gases in ambient air

ATi’s B12 2-Wire Gas Detectors are loop-powered instruments that transmit a 4-20 mA signal linearly proportional to gas concentration. Operated from a 24 VDC power supply, the transmitter will drive loads up to 675 ohms, sufficient for most monitoring applications. Alternatively, the unit can operate at 12 VDC with reduced output load for applications requiring battery operation.

These detectors are normally supplied with the sensor close coupled to the enclosure. However, for special applications, the unit can be supplied with separate sensors that can be located up to 25 feet from the transmitter. Sensor duct mounting adapters and sensor flowcells can also be provided for specific applications. Contact ATi with details of any special requirements.

A23-14 Ozone Generator
By Pragya Gupta

A23-14 Ozone Generator

ATi’s A23-14 Ozone Generator is a portable generator designed to produce an ozone gas concentration below 1 PPM, which can be used for detector calibration at almost any location.

Ozone gas generator & calibration wherever you need it

The use of ozone gas is increasing rapidly in a wide variety of applications, such as water treatment, odour control, and food processing. As the number of ozone generators in use has expanded, the need for gas leak detection near the generators or at ozone application points has expanded. With the expanded use of ozone leak detectors has come the need for a tool to generate the low-level ozone gas needed to calibrate ozone sensors.

ATi’s A23-14 Ozone Generator is a portable generator designed to produce an ozone gas concentration below 1 PPM, which can be used for detector calibration at almost any location. The generator uses a compressed air cylinder to supply dry air to an ultraviolet cell where ozone gas is formed. The resulting flow of air with a small amount of ozone exits the generator cell through fluorocarbon outlet tubing that is used to deliver the ozone standard to a gas sensor used in ATi’s A14/A11, B12, C16, D12, or F12 gas monitoring systems.

The operation of the ozone gas generator is very simple. The UV generator cell is plugged into any convenient power outlet and the valve on the air cylinder is opened. The cylinder valve is a fixed flow regulator so no flow control is required. The outlet tubing from the generator is connected to your ozone gas sensor for whatever period is needed for calibration and then the system is shut off.

A21 Gas Sampler
By Pragya Gupta

A21 Gas Sampler

ATi’s A21 Gas Sampler is a pumping system designed to draw gas samples from ducts or hard-to-access locations and deliver them to gas sensors located in a more convenient area.

Gas sample pumping system

ATi’s A21 Gas Sampler is a pumping system designed to draw gas samples from ducts or hard-to-access locations and deliver them to gas sensors, such as the D12 Toxic and Combustible Gas Detector, located in a more convenient area.

The A21 Gas Sampling systems use a high-quality diaphragm pump that is operated by a brushless DC motor to provide continuous sampling over long periods of time. Gas sampling pumps are rated for over 10,000 hours of continuous operation, and diaphragms in the pump may be changed easily if necessary. The pump will draw gas samples against a vacuum of up to 10” Hg. For sampling negative pressure duct systems when necessary.

In addition to the sampling pump, the A21 systems contain various components needed to ensure reliable gas sample measurement. A flowmeter mounted on the front panel allows the user to adjust the gas sample flow rate to the desired value, normally around 500 cc./min. Internal to the system is a “loss of flow” detector that will warn of sampling system problems that could compromise the gas measurement system. A “loss of flow” alarm light on the front panel provides local flow loss indication while an internal relay can be used to indicate this alarm remotely.

 

A14/A11 Modular Gas Detector
By Pragya Gupta

A14/A11 Modular Gas Detector

The A14/A11 Modular Gas Detector is a flexible component system providing a platform for multiple gas detector inputs and alarms.

A14/A11 modular gas detector

ATi’s A14/A11 Modular Gas Detector is a flexible component system providing a variety of options to meet individual gas detection and alarm requirements. From chemical and petrochemical plants to food processors, this economical and low-maintenance system can be applied to the simplest or most complex gas detection application and is the best choice for reliable gas leak detection.

The A14/A11 GasSens gas detection systems consist of individual modules that can be located where required. Sensor transmitters, located in the area where gas leakage or buildup might occur, provide the basic measurement for the system. Sensor transmitters are available in either NEMA 4X or explosion-proof versions and can be supplied with ATi’s exclusive Auto-Test automatic gas sensor testing system, greatly reducing operator testing requirements.

 

A12-17 Combustible Gas Detector
By Pragya Gupta

A12-17 Combustible Gas Detector

ATi’s A12-17 Combustible Gas Detector system offers the exclusive AutoTest feature, eliminating the need for frequent manual response checks, and allowing for safer and more confident monitoring.

Reliable performance, unmatched security

ATi’s A12-17 Combustible Gas Detector system eliminates the need for frequent response checks with ATi’s pioneering AutoTest. This transmitter performs an automatic test using self-generated gas on the sensing element every 24 hours with the world’s only self-testing AutoTest gas module for complete peace of mind, allowing for safer and more confident monitoring.

The A12-17 combustible gas sensors are made up of two matched sensing elements, one active and one passive. Both are electrically heated and form two legs of a Wheatstone bridge circuit. When combustible gas contacts the sensor, the active element catalyzes the oxidation of gas, heating the active element and changing its resistance. The passive element remains unchanged, resulting in a change in the bridge circuit that is proportional to the gas concentration. As long as the active element remains in good condition, the gas sensor will respond rapidly to the presence of combustible gas.

The Auto-Test gas sensor is a combination of a gas sensor and an electrochemical hydrogen gas generator integrated into an explosion-proof stainless steel housing. When activated by the electronic transmitter, the generator produces hydrogen that diffuses to the gas sensor through the flame arrestor protecting the sensor. If the gas sensor responds properly, the A12-17 Combustible Gas Transmitter will show a “Pass” indication. Should the sensor not respond properly, an “Auto Test Fail” message will activate at the gas transmitter and the 4-20 mA output from the transmitter will drop to 3 mA, providing for remote fault indication.

 

 

A12 2-Wire Toxic Gas Transmitter
By Pragya Gupta

A12 2-Wire Toxic Gas Transmitter

ATi’s A12 2-Wire UniSens Universal Toxic Gas Transmitter handles 28 different gases, providing an economical, reliable, accurate and flexible gas measurement system.

A simple approach to toxic gas detection

ATi’s A12 2-Wire UniSens Universal Toxic Gas Transmitter handles 28 different gases, providing an economical, reliable, accurate, and flexible gas measurement system. Combining universal electronics, bench calibration capability, automatic sensor verification, fault detection, and alarming, and superior sensor technology, UniSens is your best transmitter choice.

UniSens is designed for ambient gas monitoring in all kinds of industrial environments: gas storage areas, gas compressor rooms, process piping galleries, rail car sidings, analyzer shacks, gas cabinets, chemical process areas, and more. In fact, the UniSens transmitter can be used almost anywhere that hazardous gas conditions might develop either through leakage or through natural buildup.

ATi sensing modules consist of an electrochemical gas diffusion sensor and a solid-state memory assembly. Developed and manufactured exclusively by ATi, our electrochemical sensors provide excellent response time, maximum selectivity, and superior temperature stability for reliable gas sensing in a wide range of environments. The companion memory assembly stores operational information and calibration constants, along with gas sensor identification, sensing module range, and software revision level. Complete sensing modules are housed in convenient snap-in packages that mate easily with UniSens transmitters.

This unique combination of sensor and memory lets you calibrate sensing modules with any UniSens transmitter. Instead of calibrating in the field, you can bench-calibrate sensing modules with a spare transmitter; once the sensors are snapped into a field transmitter, their calibration constants upload automatically.

Q45S Wet H2S Gas Detector
By Pragya Gupta

Q45S Wet H2S Gas Detector

ATi’s Q45S Wet H2S Gas Detector offers continuous monitoring of Hydrogen Sulfide in both inlet and discharge air, where condensing humidity conditions are normal.

Continuous, reliable H2S monitoring in wet conditions

Odour control in wastewater treatment plants and sewage collection systems often requires the use of scrubber systems. Many of these scrubbers employ a wet process using a hypochlorite solution to remove hydrogen sulfide (H2S) from air streams prior to discharge. Monitoring the hydrogen sulfide in both inlet and discharge air has presented problems for standard sulfide gas sensors.

ATi’s Q45S Wet H2S gas monitor is a new type of gas sensor technology that allows continuous monitoring of hydrogen sulfide in both inlet and discharge air, where condensing humidity conditions are normal.

Measurements may be either at the inlet to scrubber systems where gas concentrations can run as high as 200 PPM or at the outlet, where gas concentrations are ideally down below 0.5 PPM. Special gas sensor configurations are available for either duct insertion or flowcell use. As Q45S Wet H2S Gas Detector systems are often monitoring gas streams with condensing levels of water vapor, provision has been made for eliminating water droplets from the gas sensor that could present a barrier to the diffusion of hydrogen sulfide into the sensor. An optional air-purge system controlled by the gas transmitter will periodically deliver a blast of air across the critical sensor surfaces to remove water droplets. This system insures a clear gas diffusion path to the sensor and reliable measurements on a continuous basis.

 

Endura AZ40 combustion gas analyzer
By Pragya Gupta

Endura AZ40 combustion gas analyzer

The AZ40 oxygen and combustibles analyzer continuously samples and analyzes combustion waste gases, often referred to as flue gas. The AZ40 determines the levels of excess oxygen using a zirconia-based oxygen sensor and unburnt fuel with an enhanced carbon monoxide detector to measure the carbon monoxide equivalent (COe).

Overview

Accurate measurement of both oxygen and COe is important for the safe, reliable, and efficient operation of industrial combustion plants.

– carbon monoxide detector
– flue gas
– combustion analysis
– combustion analyzer.

Endura AZ20 combustion gas analyzer
By Pragya Gupta

Endura AZ20 combustion gas analyzer

The Endura AZ20 is a high-quality combustion gas analyzer providing accurate and rapid oxygen reading for combustion control optimization and emissions monitoring.

Overview

The sensor, based on a zirconium oxide cell, is mounted at the tip of the probe that is inserted in the flue duct. The resulting direct, in situ measurement provides accurate and rapid oxygen reading for combustion control optimization and emissions monitoring.

Features

  • Advanced design and precision manufacturing
    – robust, long-life probe for process temperatures up to 800 °C (1472 °F)
    – proven cell design from over 50 years of experience
    – fast response to process variations
    – stable and accurate oxygen measurement
  • The unique integrated auto-calibration system
    – easy compliance with emission monitoring regulation
    – reduced installation costs; eliminates the requirement for expensive external calibration panel
    – reduced maintenance costs
  • Probe lengths up to 4.0 m (13.1 ft) and industry-standard flange configurations
    – suitable for a wide range of applications
    – extensive installation options
  • Easy cell release
    – fully site-serviceable probe
    – easy access to internal components
  • Advanced transmitters
    – easy configuration, monitoring, and intuitive HMI
    – HART communications
    – cell performance logging and diagnostics
Advance Optima AO2000 Integrated analyzer system solution
By Pragya Gupta

Advance Optima AO2000 Integrated analyzer system solution

Advance Optima series with a modular system design. Broadest range of analysis technology from specialized process photometers to in-line laser measurement. Centrally and remotely operable with Ethernet networks. Designed for use in hazardous areas and with flammable sample gases.

Overview

The Advance Optima process gas analyzers have a modular design that offers long-term security in your investment. Analyzer modules can be freely combined into tailor-made solutions and upgraded or extended with new features at any time. Remote modules are easily attached and centrally operated.

The advantages to you – Advance Optima offers:
  • One central unit and up to 4 analyzer modules
    – with common control
    – with a common connection technology
    – in a common system housing
  • All analyzers use high-performance measurement technology
    – Photometers
    – In-Situ Laser Analyzer
    – Oxygen Analyzer with new microring technology
    – Oxygen Analyzers
    − Trace Oxygen Analyzer
    – Thermal Conductivity Analyzers
    – FID Analyzers
  • Multiple analyzer systems
    – up to four analyzer modules
    – with up to six sample components
  • Extensive automatic calibration
    – with air or integral calibration cells
    – no need for test gas cylinders
  • The self-monitoring function indicates when maintenance is required
  • Hazardous areas approved models in accordance with international standards like
    – ATEX
    – EAC
    – CSA
  • Hazardous area version for FID, AO2040-Fidas24 Ex
    – for measuring flammable gases in Zone 1, 2, 21, 22
  • “Safety Concept” for measuring flammable gases in Zone 2
  • Provides Ethernet TCP/IP interfaces, OPC server, PROFIBUS, and Modbus interfaces