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Ambient Air Online Monitoring System

MICRO AMBIENT QUALITY STATION

COMPACT AIR MONITORING DEVICE:

A device with brilliant sense of measuring the precise individual Climate affecting parameter. The product being conceptualised with the qualities of a swift intelligent technology with maximum precision and compactness along with easiest ever user interface access, collect, process and evaluate data for the world of analytics.

ADVANTAGES:

Automatically analyses time and location-based trend pollution patterns. Blazing speed processors re-define “Real time” monitoring services for true live data collection. Ultra-safe Operating Software developed for accessing data at blazing speed also protects the host devices and the central data storage system from malicious threats Readily interactive with all IOS and Android devices.

VARIOUS APPLICATIONS:
TECHNICAL PARAMETER
ITEMTECHNICAL INDEX
Remote access to system and dataFeature available
InterfaceRS485/RS232 port, Network port
Transmission networkOptional 3G/4G/VPN/WIFI
Shelter materialGI, Aluminium or stainless steel box optional
Scaffold materialQ235
Scaffold heightStandard height is 4.5m, Flange connection(1m fixed underground, 2*1.5m+1*0.5m)
Lightning arresterLength 1m, Q235 Galvanized material
Working environmentTemperature: -30~+50℃, Humidity: 10%RH~90%RH, Pressure: 65~108Kpa
Shelter Protection gradeIP65
Power supplyDC12V, AC220V




CONTINUOUS AMBIENT AIR QUALITY MONITORING SYSTEM (CAAQMS)


HORIBA’S AP-370

The AP-370 series is a HORIBA’s measuring unit of Continuous Ambient Air Quality Monitoring System (CAAQMS). Continuous Ambient Air quality monitoring system are custom designed best to meet each application unique demands. This system is meant for measuring. The concentration of air pollutants at various times instance of the day. The Concentration of air pollutants (such as S02, NOX, CO, O3, THC, etc). These stations monitor air pollution and send the data to remote server for archiving data and analysis. Mobile CAAQMS can be published via the internet to easy public access to raise awareness on current air pollution levels.



FEATURES
Automatic calibration
Auto-range function
Selective data output
Storing data in memory
Network communication (option)
Memory card for data management (option)
Readout view, concentration and mass
Pressure-compensation
Easy-to-read, 320x240 LCD display with touch panel screen.
Minimal influence from interference components and ambient temperature.
Input/output via RS-232C port (option)
At last- a small, compact system


APMA-370 Ambient CO Monitor

Conventional technology uses an optical chopper to obtain modulation signals. Instead, the APMA-370 uses solenoid valve cross flow modulation. Fixed amounts of the sample gas and the reference gas are injected alternately into the measurement cell. With the cross flow-modulation method, if the same gas is used for both the sample gas and the reference gas (e.g., zero gas could be used for both), no modulation signal will be generated. This has the great advantage that, in principle, when analyzing minute amounts of gas there is no generation of zero-drift. An additional advantage is that the elimination of rotary sectors precludes the need for optical adjustment. These features assure greatly improved stability over long periods of measurement. A further improvement is that in the front chamber of the detector, the measurable components, including interference components, are detected; in the rear chamber, only interference components are detected. By means of subtraction processing, the actual signal obtained is one that has very little interference.


FEATURES
The cross flow modulation type, infrared-absorption technology eliminates the need for adjusting optical alignment.
The APMA-370 uses an AS type (anti shock) interference-compensating detector, and a purified reference gas. The reference gas is generated by purging the sample through an oxidation process, where an oxidizing catalyst burns the CO to CO2. These features eliminate interference from other elements, resulting in highly accurate measurements.
The APMA-370 does not use such components as reflecting mirrors, that attract foreign matter. This means the optical bench stays clean assuring you of stable results over long periods of time.
SPECIFICATIONS
PrincipleCross flow modulation, non-dispersive infrared (NDIR) absorption technology
ApplicationCO in ambient air
RangeStandard ranges: 0-10/20/50/100 ppm; 0-5/10/20/50 ppm; auto range ~ manual range selectable; can be operated by remote switching. Optional (measurable) ranges: 4 ranges selectable from 0-100 ppm, within 10 times range ratio; auto range ~ manual range selectable; can be operated by remote switching.
Lower detectable limit:-0.02 ppm (3 sigma)



APSA-370 Ambient SO2 monitor

The UV fluorescence method operates on the principle that when the SO2 molecules contained in the sample gas are excited by ultraviolet radiation they emit a characteristic fluorescence in the range of 220-420 nm. This fluorescence is measured and the SO2 concentration is obtained from changes in the intensity of the fluorescence. The reactive mechanism is (1) SO2+hν1→SO2* (2) SO2*→SO2+hν2 (3) SO2*→SO+(O) (4) SO2*+M→SO2+M Here, (1) shows the excited state of the SO2 molecules that have absorbed the amount of energy hν1 by ultraviolet radiation. (2) shows the amount of energy, hν2 emitted by the excited molecules as they return to the ground state. (3) shows the decomposition by the light emitted from the excited molecules. (4) shows the quenching, i.e., the energy lost by the excited molecules colliding with other molecules. The APSA-370 uses an Xe lamp as the light source, and the fluorescent chamber design minimizes scattered light. The optical system has been carefully designed with low background light, making it possible to take measurements with a highly stable zero point. In addition, a reference detector monitors any fluctuation in the intensity of the light source. This allows the unit to calibrate itself automatically for sensitivity, resulting in greater span stability.


FEATURES
The APSA-370 uses an innovative detector and a new optical system for low background, high sensitivity (0.05 ppm F.S.), and greatly improved stability.
The fluorescent chamber design gives measurements with minimum influence from moisture
The unit has built-in aromatic hydrocarbon cutter with a selective transmission membrane. This reduces the influence of interference components. Coupled with Horiba's unique flow-path, it also makes it possible to extend the working life of the cutter and to take measurements effects of sample flow variations.
In comparison with the FPD method, the APSA-370 design is (1) highly selective for SO2, (2) requires no supplemental gas, and (3) gives linear output.
Compensation for the lamp's luminous energy decline guarantees prolonged calibration stability
The sample inlet has a built-in PTFE filter

SPECIFICATIONS
PrincipleUV fluorescence (UVF)
ApplicationSO2 in ambient air
RangeStandard ranges: 0-0.05/0.1/0.2/0.5 ppm; auto range ~ manual range selectable; can be operated by remote switching.Optional (measurable) ranges: 4 ranges selectable from 0-10 ppm, within 10 times range ratio; auto range ~ manual range selectable; can be operated by remote switching.
Lower detectable limit:-0.5 ppb (3 sigma)



APNA-370 Ambient NOX Monitor

Cross flow modulation type, reduced pressure chemiluminescence (CLD). The chemiluminescence method uses the reaction of NO with O3 NO+O3→NO2*+O2 NO2+NO2+hν A portion of the NO2 generated as the result of this reaction becomes NO2*. As these excited molecules return to the ground state, chemiluminescence is generated in the range of 600 nm to 3,000 nm. The light intensity is in proportion to the concentration of NO molecules and by measuring it we obtain the NO concentration of the sample.

A DE oxidation converter changes the NO2 to NO, which is measured. In other words, the NO2 concentration can be obtained by the difference between (1) the NOx concentration measured when the sample gas is directed through a converter and (2) the NO concentration measured when the gas is not run through the converter.


FEATURES
The APNA-370 uses a combination of the dual cross flow modulation type chemiluminescence principle and the referential calculation method. This gives it the advantages of the single-detector method plus the ability to do continuous measurements of NOx, NO, and NO2. The design gives great stability and extremely high sensitivity (0.1 ppm F.S.)
Standard equipment includes a drier unit with an automatic recycle function to provide dry ambient air as the ozone source. This makes long-term continuous measurements possible.
The detector uses a silicon photodiode sensor to reduce size and prolong working life.
All the necessary features are built right into a single rack-sized unit, including a reference-gas generator, an ozone-source drier unit, an ozone decomposer, and a sampling pump. No supplemental gas is required.

SPECIFICATIONS
PrincipleCross flow modulation type, reduced pressure chemiluminescence (CLD)
ApplicationNO2, NO and NOx in ambient air
RangeStandard ranges: 0-0.1/0.2/0.5/1.0 ppm; auto range ~ manual range selectable; can be operated by remote switching. Optional (measurable) ranges: 4 ranges selectable from 0-10 ppm, within 10 times range ratio; auto range ~ manual range selectable; can be operated by remote switching.
Lower detectable limit:-0.5 ppb (3 sigma)



APHA-370 Ambient THC Monitor

Flame ionization detection method (FID) with selective-combustion. The flame ionization detection method (FID) ― used in combination with the selective-combustion system ― utilizes the ionization that occurs as the result of the high-temperature energy from combustion at the tip of the burner jet when organic carbon compounds are introduced into the hydrogen flame. The hydrogen flame is located between two electrodes. When an electrical voltage is applied across these electrodes a minute ion current proportional to the hydrocarbon concentration is produced. This current is monitored by a low leakage amplifier, giving a voltage readout for THC. To measure CH4 the sample gas is passed through the selective catalytic combustion unit (the NMHC cutter), which oxidizes NMHC without oxidizing CH4. This is shown as A below. B represents the THC concentration measured without passing the gas through the NMHC cutter. Thus B- A will give the concentration of NMHC. The final concentration value is calculated using a relative-sensitivity correction coefficient, k, as shown below.

CH4 Concentration A

NMHC Concentration k (B - A)

THC Concentration A + k (B - A)


FEATURES
The APHA-370 uses a combination of the flame ionization detection method and selective-combustion.
This gives it the advantage of the single-detector method plus the ability to perform continuous measurements, free of zero-drift, for THC, NMHC, and CH4. The design gives great stability and high sensitivity (0-5 ppm F.S.)
The APHA-370 has a relative-sensitivity correction function for CH4 and NMHC.
All the necessary features are built right into a single rack-sized instrument, including a catalytic unit for selective combustion (i.e., an NMHC cutter); a catalytic unit for generating reference gas and auxiliary combustion air (standard); and a sampling pump. The only supplemental gas required is H2.

SPECIFICATIONS
PrincipleFlame ionization detection (FID) with selective combustion
ApplicationTHC, NMHC, and CH4 in ambient air
RangeStandard ranges: 0-5/10/20/50 ppmC; auto range ~ manual range selectable; can be operated by remote switching. Optional (measurable) ranges: 4 ranges selectable from 0-100 ppmC, within 10 times range ratio; auto range ~ manual range selectable; can be operated by remote switching.
Lower detectable limit:-0.022 ppm (3 sigma)



APOA-370 Ambient 03 Monitorr

Cross flow modulation type, Non dispersive ultra-violet absorption method (NDUV) The ultra-violet absorption method works on the principle that ozone absorbs ultra-violet rays in the area of 254 nm. Measurements are taken from continuous, alternate injections of the sample gas and the reference gas into the measurement cell, controlled by a long-life solenoid valve. The cross flow modulation method is characteristically zero drift free. A comparative calculation circuit automatically compensates for all fluctuations in the mercury vapour light source and in the detector. This means that, in principle, the APOA-370 makes it possible to carry out zero-span drift free, continuous measurements. In addition, HORIBA'S unique deozonizer for the comparison gas line is unaffected by interference elements or moisture retention, prolonged, stable measurement is possible.


FEATURES
The APOA-370 uses the cross flow modulation type, ultra-violet absorption method in conjunction with the comparative calculation method.
This permits continuous measurement with great stability and high sensitivity (0.1 ppm F.S.)
Horiba's innovative heated deozonizer provides reference gas by decomposing the O3 found in the sample gas. This has the advantages of (1) reducing the influence from interference, (2) making the monitor insensitive to great changes in moisture content, and (3) prolonging the working life of the monitor.
All gas connections are either PTFE or glass.

SPECIFICATIONS
PrincipleCross flow modulation type, Ultra-violet-absorption method (NDUV)
ApplicationO3 in ambient air
RangeStandard ranges: 0-0.1/0.2/0.5/1.0 ppm; auto range ~ manual range selectable; can be operated by remote switching. Optional (measurable) ranges: 4 ranges selectable from 0-10 ppm, within 10 times range ratio; auto range ~ manual range selectable; can be operated by remote switching.
Lower detectable limit:- 0.5 ppb (3 sigma)