ENVEA (ex Environnement S.A) - Model VOC72M -VOC ( BTEX ) Analyzer Based On Gas Chromatography (GC) and Photo-Ionization Detector (PID)

• Compact and fully automated BTEX analyzer for the monitoring of Benzene, Toluene, Ethylbenzene, m+p-Xylene, o-Xylene, 1-3 Butadiene, (optional up to 40 parameters)
• Provides equal performance to the laboratory chromatographs
• Self-contained and completely automated
• 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
• High sensitivity, stable and linear response PID detector
• Ultrafast trap heater (heating rate >160°C/second)
• Quick check of the chromatogram peaks possible directly on-screen, without the use of a computer
• Robust and low maintenance instrument (no PID lamp cleaning)
• QAL1 certified by the TUV to comply with EN 14662-3 for benzene monitoring, to EN 15267, 2008/50/EC...

• Ambient air monitoring
• Monitoring of industrial sources emitting VOCs
• Photochemical pollution studies (stationary and mobile laboratories)
• Fenceline monitoring of Benzene and other volatile organic compounds for compliance with recent US-EPA air pollution standard to further control toxic air emissions emitted by petroleum refineries

• 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 analyser on a single cycle without an external PC
• GC column equipped with an innovative liquid-cooler; retention times are stable even with a fluctuating temperatureUltrafast 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
• Quick check of the chromatogram peaks possible directly on-screen, without the use of a computer
• Robust and low maintenance instrument (no PID lamp cleaning) Memory effect (up to 10 times lower than required by the standard EN14662-3) allowing the automatic calibration of the analyser on a singlecycle without an external PC
• Real-time chromatogram, animated synoptic, auto-diagnostic, control and maintenance data screens can be displayed while the instrument is operating
• Simultaneous multi-screen remote access via Wifi or LAN using the dedicated application ESA ConnectTM for control, diagnostics, software update...
• ESA ConnectTM application for iOS and Android available for free download here
• Includes embedded Communication Protocol for XR® Management Software with automatic recognition and configuration
• SmartStatusLightTM power button on the front panel indicating if the instrument is ready to use or not (ON/OFF, Alarm, Maintenance required…)

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 (2sigma): ≤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 (<1% of the annual limit)
• 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-ionisation (PID) 10,6eV with nitrogen curtain
• Gas supply: Nitrogen 6.0 (99.9999%) 3.2 ± 0.2 bar 15 ml/minute
• Serial link: RS232 or RS422
• Ethernet port: RJ45 socket, UDP protocol
• USB port: USB socket format 1.0
• Dimensions: (LxWxH): 601mm x 483mm x 133mm
• Weight:12.5 kg
• Touchscreen TFT7``
• Electrical consumption: average: 130VA, peak 200VA, stand-by 50VA
• Power supply: 100–240V + ground; 50–60Hz

Options:

• 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
• RS232 or RS422 serial interface (max. one Estel board if this option is used)
• Span gas input (atmospheric pressure)
• Span gas input under pressure (1 bar) for permanent connection to a gas cylinder

• QAL1 certified by TUV Rheinland to EN 14662-3
• Compliance with : ISO 13964, 2008/50/EC, EN14211:2012, EN15267-1:2009, EN15267-2:2009 40 CFR part 53 and 40 CFR part 58