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VOC72M – VOC Analyzer Based on GC & PID

VOC72M – VOC analyzer based on gas chromatography (GC) and photo-ionization detector (PID)

Standard measured compounds: Benzene, Toluene, Ethylbenzene, m+p-Xylene, o-Xylene, 1-3 Butadiene (up to 40 other compounds on request)

VOC72M - VOC analyzer based on gas chromatography (GC) and photo-ionization detector (PID)

VOC72M - VOC analyzer based on gas chromatography (GC) and photo-ionization detector (PID) Cloud

  • Compact and fully automated BTEX analyzer for the monitoring of Benzene, Toluene, Ethylbenzene, m+p-Xylene, o-Xylene, 1-3 Butadiene, etc. providing equal performance to the laboratory chromatographs
  • Particularly well-suited monitor for fixed or mobile ambient air quality monitoring stations
  • Robust and low maintenance analysis instrument, ready to use in less than 30 minutes
  • Performs all the functions (sampling, analysis and data management) in a simple and completely autonomous mode


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For more information on this product, contact us :
Contact Altech USA Enviromental sales.usa@envea.global
  • Ambient air monitoring

  • Monitoring of industrial sources emitting VOCs

  • Photochemical pollution studies (stationary and mobile laboratories)

  • Standard measured compounds: Benzene, Toluene, Ethylbenzene, m+p-Xylene, o-Xylene, 1-3 Butadiene (up to 40 other compounds on request)

  • Memory effect (up to 10 times lower than required by the standard EN14662-3) allowing the automatic calibration of the analyzer on a single cycle without an external PC

  • GC column equipped with an innovative liquid-cooler; retention times are stable even with a fluctuating temperature

  • Ultrafast trap heater (heating rate >160°C/second)

  • Remote diagnosis, made possible without opening the hood

  • Replacement of the trap in less than 2 minutes. No adjustment required

  • Use of a single gas source (nitrogen)

  • 3 levels of built-in security

  • Equipped with LCD screen

  • High sensitivity, stable and linear response PID detector

  • Long-life capillary column

  • Self-contained and completely automated

  • Synoptic flow diagram display

  • Quick check of the chromatogram peaks possible directly on-screen, without the use of a compute

Specifications based on 15 min cycle:
 

  •     Measuring ranges: maximum 1000μg/m3  (programmable)

  •     Units: ppb or μg/m3 (programmable)

  •     Cycle duration: 10, 12, 15, 20, 30 minutes (programmable)

  •     Measuring noise (sigma): ≤0.025μg/m3 at 0.5μg/m3 benzene

  •     Lower detectable limit (2s): ≤0.05μg/m3 benzene

  •     Carry-over (memory effect): ≤0.5% on the first zero

  •     Long-term span drift: ≤4% on 15 days

  •     Lack of fit; largest residual: ≤4% of the measured value

  •     Repeatability standard deviation: ≤0.05μg/m3 at 5μg/m3benzene 

  •     Sample flow: 50ml/minute

  •     Flow control: integrated vacuum pump + heated micro capillary tube

  •     Trap adsorbent: Carbopack®

  •     Sampling temperature: 35°C

  •     Desorption temperature / heating rate: 380°C (programmable) / > 160°C/second

  •     Injection valve: 6-port (heated)

  •     GC column: stainless steel 15m x 0.25mm x 1μm apolar
     

    • Carrier gas control: electronic pressure control

    • Temperature control: 20-170°C± 0.1°C. 5 ramps up to 30°C/minute.

    • Cooling: liquid heat exchanger and thermo-electric cooler
       

  •     GC detector: Photo-ionization (PID) 10,6eV with nitrogen curtain

  •     Detector's temperature: 140°C(programmable)

  •     Gas supply: Nitrogen 6.0 (99.9999%) 3.2 ± 0.2 bar 15 ml/minute

  •     Serial link: RS 232 or RS 422

  •     Ethernet port: RJ45 socket, UDP protocol

  •     USB port: USB socket format 1.0

  •     Dimensions: (LxWxH): 601mm x 483mm x 133mm

  •     Weight:12.5 kg

  • ESTEL 2 maximum electronic boards with: 4 independent analog inputs (0-2.5 V) / outputs (0-1 V, 0-10 V, 0-20 mA, 4-20 mA), 4 remote control inputs, 6 dry contacts

  • Gas supply: Nitrogen 6.0 (99.9999%) 3.2 ± 0.2 bar 15 ml/minute

  • RS 232 or RS 422 serial interface (max. one ESTEL board if this option is used)

  • Span gas solenoid valve