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Product Information :

Product Name:  
UV Gas Analyzer


Product Category:   เครื่องมือวิทยาศาสตร์ / สารเคมีและวัสดุภัณฑ์สำหรับห้องปฏิบัติการ
Product Sub-Category:   เครื่องวิเคราะห์ก๊าซด้วยยูวี
Brand:   Duvas Technologies 
Product Type :   สินค้า, ผลิตภัณฑ์ 
Short Description :   The DUVAS DV3000 SERIES units are both fixed and portable, multi-species gaseous detection units based on Differential Ultra Violet Absorption Spectroscopy. The DUVAS DV3000 SERIES is offered in a number of variants including a fully mobile vehicle installed monitor.
     
 

 

 Fast

  • Fast, accurate readings available on a real time basis
  • No calibration and short warm up time subject to external factors max: 5-10 minutes
  • Quick service with few consumable parts

 Acculate

  • Measurement of multiple gases on a real time constant measure basis
  • Ability to adjust averaging time to improve accuracy even further
  • No cross sensitivity between measured gases

 Fixed & Mobile Gas Monitoring and Detecting

  • Serial, ethernet and Bluetooth enabled for auto data upload to remote monitoring
  • GPS - for real time gas analysis & mapping - allowing remote, off site access and data analysis and mapping
  • Ability to ‘triangulate’ data with other variables such as meteorological data.

 User Friendly

  • Mobile (vehicle mounted) or portable with 4 hour battery life.
  • Fixed site units can be installed for roadside or fence line use
  • Smaller – Lighter variant under development
  • Low Operating Costs
  • No need for repeat calibration


We have developed a new approach for multi-species gas analysis in fixed and mobile form producing rapid, dynamic readouts coupled with the geographic mapping of gas concentrations in real-time. Our units are capable of measuring a large range of gases 'visible' in the UV spectrum using ultraviolet spectroscopy. Our core technology and proprietary software algorithms are supported by international patents. We use a UV lamp to shine light into a gas cell. This beam of light is reflected via a series of mirrors and then collected by a UV spectrometer. Our proprietary software and algorithms then analyse the readings that the spectrometer has collected, typically in 1 second for BTEX gases.

There are no expensive chemicals or coolants to add, no need to wait while the unit analyses the data and, critically, once calibrated, the unit will not need repeat calibration. 

Maintenance is minimal, with the main items being replacing the light bulbs every 2000-4000 hours, filters and replacing the batteries every 600+ recharges. We also recommend replacing the mirrors every 1-2 years (depending on environment and use) to maintain the sensitivity. All models in the DV3000 series are designed to enable such regular maintenance to be quick and easy to perform.


The DV3000 is currently optimised for the following species:

 

BTEX

 

benzene

toluene

ethylbenzene

 

m-xylene

o-xylene

p-xylene

 

AQM

   

 

nitric oxide

nitrogen dioxide

sulphur dioxide

 

ozone

 

 

 

Others

   

 

styrene

formaldehyde

1,3-butadiene

 

 

   

 

A large number of other species can be detected by ultraviolet spectroscopy, although most are only found in specialist industrial processes. Please contact us if you need to measure any of the following, and we will advise you on the expected ppb levels our technology can measure down to, and the cost of the specialist calibration required.

 

VOCs

TICs

AQM

Other

 

Acetaldehyde

Ammonia

Formic acid

1,2,3-dicholorobenzene

Acetonitrile

 

Furfural

1,2,4,5-tetrafl­uorobenzene

Acetylene

 

Isoprene

1,2,4,5-tetramethylbenzene

Acrolein

 

Ketene

1,2,4-trichlorobenzene

Acrylonitrile

 

Naphthalene

1,2,4-trifluorobenzene

 

 

Nitrobenzene

1,2,4-trimethylbenzene

Carbon Disulfide

 

 

1,3,5-trichlorobenzene

Chlorine Dioxide (ClO2)

 

Phenol

1,3,5-trifluorobenzene

Cyanogen

 

Phenyl fluoride

1,3,5-trimethylbenzene

Diflourocarbene

 

Phenylacetone

Acetone

 

 

 

 

Methacrolein

 

 

   

 

 

m, n, o-bromotoluene

Propyne

 

 

m, n, o-chlorotoluene

 

 

 

m, o, p-difluorobenzene

 

 

 

m, p-bromochlorobenzene

 

 

 

m-dibromobenzene

 

 

 

methylamine

 

 

 

 

 

 

 

p-dibromobenzene

 

 

 

 

 

 

 

Trimethylbenzene

 

 

 

 

Measurement Principle

Ultraviolet Absorption Spectroscopy

Measurement Range (Min ppb)
 

2ppb (benzene, nitric oxide, sulfur dioxide, styrene); 5ppb (ethylbenzene, toluene, xylenes, ozone);
15ppb (nitrogen dioxide, formaldehyde); others on request

Measurement Range (Max ppb)

All species max 500ppb

UV Light Source

Deuterium Lamp

Performance

Simultaneous Analysis of Multiple Gases in ppb level concentrations

Detection Resolution

0.1ppb

Linearity

±1% full scale

Max zero drift (24 hour)

±1ppb

Max span drift (24 hour)

±1% full scale

Response Time (90% full scale) (min)

< 5 sec (depending on gas species)

Warm-up Time for stable detection

subject to external factors max: 5-10 minutes

 

 

USB Memory stick logging

?

Ambient Temperature Range

10°C to 40°C non condensing

Storage temperature

-40°C to 60°C non condensing

Lamp life time

>2000 hours

Humidity (non condensing)

80%

IP rating

IP65 on request

Instrument Weight (kg)

Less Than 18 Kg Without Battery

Instrument Dimension (L*W*H)

840 x 290 x 280mm

 

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