Compact Version
Regular Version
Nutech 3000 Portable FID TVOC Analyzer
– for TVOC / TOC / NMVOC / CH₄ Monitoring
The Nutech 3000 is a portable analyzer designed for the measurement of Total Hydrocarbons (THC), Methane (CH₄), and Non-Methane Hydrocarbons (NMHC) in stationary source emissions and fence line monitoring applications.
Technology Principle
In emission monitoring, TVOC is commonly expressed as either Total Hydrocarbons (THC) or Non-Methane Hydrocarbons (NMHC), depending on regulatory requirements.
The Nutech 3000 employs a dual-channel system combining catalytic oxidation and dual Flame Ionization Detectors (FIDs) to simultaneously determine THC and methane concentrations, enabling accurate NMHC calculation.
- The sample gas is split into two parallel channels:
- Channel 1: Direct measurement of total hydrocarbons (THC) using FID 1
- Channel 2: The sample passes through a catalytic oxidation module, where non-methane hydrocarbons are oxidized to CO₂ and H₂O, leaving only methane to be detected by FID 2
- NMHC concentration is calculated as:
NMHC = THC – CH₄
Standards & Methods
- US EPA Method 25A
- EN 12619: 2013
- China HJ 1012: 2018
Features of Nutech 3000 THC & NMHC Analyzer
Lightweight & Portable
- Highly integrated design keeps total weight to ≤ 10.5 kg.
- Compact footprint for easy transport and minimal space requirements.
- Backpack-style carrying option and handle enable true one-person carry and rapid deployment.
Large-capacity Battery for True Field Operation
- Built-in high-capacity battery enables extended operation when utility power is unavailable—ideal for remote sites, stack platforms, plant boundary, and emergency response.
- No generator or power cabling required, so you can arrive, start, and measure with minimal setup.
Simultaneous THC / NMHC / CH₄ — One Analyzer, One Run
- Dual-FID architecture enables continuous, real-time measurement of THC, CH₄, and NMHC at the same time, with no valve switching or flow reconfiguration.
- 1-second updates for data results to capture fast process changes.
- Upgraded catalyst delivers high conversion efficiency (≥ 95%), improving accuracy and stability for CH₄/NMHC separation.
Engineered for Accurate Results
- Fully heated sample path—from the sampling line to the FID—helps prevent condensation and loss of VOCs, improving data reliability in humid field conditions.
- High-precision EPC flow control ensures stable, repeatable flows for consistent FID performance.
- Purge function helps keep the system clean, minimizing carryover and maintaining measurement accuracy over long runs.
Traceable Data & Efficient Reporting
- Automatic recording and archiving ensure data integrity and traceability.
- Test Data can be exported to Excel format for auditing, sharing, and further calculations.
- Quick data export and reporting reduce post-processing time and labor cost.
Low Operating Cost
- Low-consumable design with easy-to-replace filters to reduce maintenance time and cost.
- Service-friendly layout minimizes downtime and labor cost.
Versatile Applications Across Concentration Ranges
- Designed for VOC monitoring across a wide dynamic range—from high concentrations in stacks, to process areas inside the plant, and low-level measurements at the plant boundary
Technica Data of Nutech 3000 THC & NMHC Analyzer
- Analyte: THC / CH₄ / NMHC
- Detection Method: Catalytic Oxidation + Dual FID
- Ranges: 0–50 / 500 / 5,000 / 30,000 ppmC (auto-range and can be customized)
- LOD: ≤ 0.08 ppmC
- Sampling Flow Rate: 0.5 L/min
- Zero Drift: ≤±1% Full Scale/8 h
- Span Drift: ≤±1% Full Scale/8 h
- Repeatability: ≤ 1% F.S.
- Linear Error: ≤±1% F.S.
- Catalyst conversion efficiency (NMHC removal): ≥95%
- Warm-up Time ≤20min
- Response Time (T90): ≤ 2 s
- Heated Sampling line Temperature: 180°C & adjustable in software
- Data Logging Interval: 1 s (minimum), user-selectable
- Data Output: CSV format
- Communication: Wi-Fi / Bluetooth
- Calibration Gas: Propane (C₃H₈) / Methane (CH₄)
- Operating Conditions : 5–40 °C; RH < 95% ; 80–106 kPa
- Power Supply: 100–240 VAC, 50/60 Hz; Battery 285Wh, typical runtime 3–4 h
- Dimensions: 350 x 300 x 155 mm
- Weight: <10.5kg (with battery and H2 cartridge)
Typical Applications
- Regulatory on-site inspection & compliance screening
- Stack/duct emission screening
- Abatement performance verification
- Plant self-monitoring & troubleshooting
- Cross-checking and validation of online VOC analyzers
- Fenceline patrol & mobile screening (low-level detection and hotspot identification)
- Fugitive emission screening
- Emergency response (incidents, odor complaints, abnormal emission investigation)
- Combustion exhaust VOC screening (boilers, heaters, incineration exhaust)
- On-site testing services by third-party laboratories and consultants
- Process optimization and short-term trend monitoring
- Field research and pilot studies (methods, process studies, control technology evaluation)
Typical Users
- Environmental authorities / regulators (inspection & enforcement teams)
- Environmental monitoring centers / contracted monitoring agencies
- Third-party testing laboratories & service providers
- Industrial facilities’ EHS / environmental compliance teams
- Environmental engineering companies / system integrators (abatement verification)
- Industrial park operators / site safety & management teams
- Process / production / maintenance teams (troubleshooting & optimization)
- Research institutes & universities
- Environmental consultants (diagnostics, compliance evaluation)
- Online monitoring system operators / service providers
For both Stack & Fugitive Emission VOCs Monitoring
Stack VOCs Emission Monitoring
Fugitive VOCs Emission Monitoring
Fugitive VOCs Emission Monitoring
Testimonials
Field Pictures
VOC Testing to Validate the RTO’s Removal Efficiency
Tablet computer to control the instrument within 50 meters via WiFi
Wastewater NMHC Testing at a Beer Producer
Battery-powered and thus support mobile VOC monitoring
Can Analyze Sample in Tedlar Bag
Korea Type Approval / Certificate
FAQs
If not used for >3 months:
- Run the instrument once per month
- Keep gas inlets sealed
- Ensure drain outlet is not blocked
The system uses a heated sampling line, catalytic conversion, and FID detection, combined with:
- Oxygen correction to compensate for FID sensitivity shifts
- Humidity correction for dry-basis reporting
- Built-in zero and span calibration workflows
This ensures stable and comparable results even in fluctuating stack conditions.
The Nutech 3000 is designed for continuous and repeated measurements with:
- Automatic preheating and stabilization
- Configurable continuous or interval sampling modes
- Optional averaging to smooth short-term fluctuations
This makes it suitable for both spot testing and extended monitoring campaigns.
A two-stage filtration system protects the analyzer:
- Filter at the sampling handle
- Filter tip at the probe front
In addition, the heated sampling line prevents condensation of heavy hydrocarbons.
This design minimizes:
- Memory effects
- Internal contamination
- Long-term drift
The instrument requires approximately 15–20 minutes of preheating after ignition.
During this time:
- The FID, oven, and sampling line reach stable temperatures
- Gas flows and ignition stabilize automatically
Once stabilized, the system is ready for calibration and measurement.
Accuracy is maintained through:
- Quick zero calibration (~30 seconds)
- Flexible span calibration using standard gases
- Optional drift correction during operation
The system supports multiple calibration ranges, allowing users to match calibration gas to real sample conditions.
Yes. The system is designed for:
- High THC concentrations (>10,000 ppm)
- Adjustable maintenance intervals for harsh conditions
- Multiple calibration ranges up to 30,000 ppm methane equivalent
This makes it suitable for demanding industrial emission sources.
The analyzer is fully portable and includes:
- Integrated battery operation with real-time monitoring
- Compact design with built-in control tablet
- Wireless communication via Bluetooth and WiFi
This allows flexible deployment for:
- Stack testing
- Fence line monitoring
- Rapid field inspections
The instrument includes built-in diagnostics such as:
- Automatic leak check function
- Flow and pressure monitoring
- Real-time system status indicators
If a leak or abnormal condition is detected, the system provides clear feedback for troubleshooting.
Test data can be:
- Stored on the control tablet
- Queried by time range
- Exported via WiFi or Bluetooth
This allows easy integration with external systems and reporting workflows.
Routine maintenance is straightforward:
- Regular filter replacement (weekly/monthly depending on conditions)
- Periodic system checks and leak verification
- Monthly operation recommended during long idle periods
Proper maintenance ensures long-term stability and consistent performance.
Intuitive Software Ensures Simple Operation
Applicable Methods & Standards
US EPA Method 25A
Determination of Total Gaseous Organic Concentration Using a Flame Ionization Analyzer
US EPA CTM-042
Use of Flame Ionization Detector-Methane Cutter Analysis Systems for VOC Compliance Testing of Bakeries
EN 12619:2013
Stationary source emissions — Determination of the mass concentration of total gaseous organic carbon — Continuous flame ionisation detector method
China HJ 1331—2023
Stationary source emission — Determination of total hydrocarbons, methane and nonmethane hydrocarbons — Portable catalytic oxidation-hydrogen flame ionization detector method
China HJ 1012—2018
Ambient air and stationary source emission — Specifications and test procedures for hydrocarbons, methane and nonmethane hydrocarbons portable total monitoring instrument
ISO 25140:2010 / EN ISO 25140:2010
Stationary source emissions — Automatic method for the determination of the methane concentration using flame ionisation detection (FID)
US 40 CFR Part 1065
Engine-Testing Procedures
ISO 8178-1:2017
Reciprocating internal combustion engines — Exhaust emission measurement — Part 1: Test-bed measurement systems of gaseous and particulate emissions
Japan MOE Notification No. 61
Measurement Method for Concentration of Volatile Organic Compounds
Korea ES 01507.1b
Total Hydrocarbon in Flue Gas — Flame Ionization Detector
Taiwan NIEA A723.77B
Method for Determination of Total Hydrocarbon and Other Gases Using Online Flame Ionization Detector Method
IMO MARPOL Annex VI / NOx Technical Code 2008, MEPC.177(58)
Technical Code on Control of Emission of Nitrogen Oxides from Marine Diesel Engines
IMO MEPC.402(83)
Guidelines for test-bed and onboard measurements of methane (CH₄) and/or nitrous oxide (N₂O) emissions from marine diesel engines
On-site Training Pictures
