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Continuous automatic monitoring system

IVOCS 200
IVOCS 200

Continuous automatic monitoring system

IVOCS 200 continuous automatic monitoring system for non-methane total hydrocarbons in ambient air can be used for on-line monitoring of total hydrocarbons, methane, non-methane total hydrocarbons (NMHC), benzene series (BETX), VOC signature factors and other volatile organic compounds. The system can be widely used to monitor VOCs emission in the air of urban air quality, industrial parks, factories and industrial park boundaries, factory boundaries, etc.

FEATURES

·The analysis method was GC-FID.

On the basis of meeting the monitoring of total hydrocarbons, non-methane total hydrocarbons and benzene series, the advantages of customized VOCs other characteristic factors monitoring.

GC-FID has a professional chromatographic analysis software using intelligent identification technology based on spectral peak, to realize the automatic processing of peak judgment, baseline correction, overlapping peak segmentation, and the use of high-fidelity digital filtering algorithm, has a strong anti-noise interference ability, can detect the weak peak at the same level as the baseline noise, improve the minimum detection limit and quantitative accuracy of the measured components.

·The innovative heating function of the sampling manifold fundamentally solves the problem of condensation in sampling, and all parts that touch the sampled gas are made of teflon, which does not adsorb and affect the substance under test.

·Provide customized solutions: If the installation area has explosion-proof requirements, explosion-proof analysis rooms or explosion-proof models can be customized to meet the safety and environmental protection needs.


SPECIFICATIONS

Monitoring principle gas chromatography GC-FID principle, NMHC direct measurement method
Monitoring items Non-methane total hydrocarbon (NMHC), methane (CH4), Total hydrocarbon (THC)
Monitoring range 0-5000ppbC (NMHC), 0-5000ppB (CH4), adjustable range
Concentration unit ppbC, ppb, μg/m³C, μg/m³
Analysis period ≤15min
Calibration curve R2≤0.999
Detection limit NMHC≤20ppbC, CH4≤100ppb
Repeatability ≤5%
Linear error ≤±1%F.S. (NMHC)
High concentration residue ≤±1% (NMHC)
Accuracy ≤±10%
Multi-component value error ethylene ≥60%, toluene 90%~105%, ethyl acetate ≥60%, trichloroethylene 95%~110%, n-undecane ≥60%
24h zero drift ≤±20ppbC (NMHC)
24h range drift ≤±2%F.S. (NMHC)
Long-term (≥7d) drift ≤±2%F.S (NMHC)
Output RS232/RS485 (standard Modbus protocol) /LAN /4-20mA
Operating temperature -10-45℃, < 90%RH (no condensation)
Storage temperature -20-60℃, < 90%RH (no condensation)
Air source nitrogen, hydrogen and zero air
Power supply AC220±10%V, 50/60Hz



BROCHURE

Continuous monitoring of total non-methane hydrocarbons

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