Genetc GH-61A Integrated Smart Flue Gas Velocity Analyzer
| Brand | Genetc |
|---|---|
| Origin | Shandong, China |
| Manufacturer Type | Direct Manufacturer |
| Model | GH-61A |
| Instrument Category | Flue Gas Velocity & Flow Analyzer (Pitot Tube Parallel Method) |
| Accuracy | ≤ ±1.0% FS |
| Stability | ≤ ±1.0% FS |
| Response Time | < 10 s |
| Measurement Parameters | Gas Velocity, Standard Dry Volumetric Flow Rate, Dynamic Pressure, Static Pressure, Flue Gas Temperature |
| Compliance | GB/T 16157–1996, HJ/T 48–1999 |
| Display | Color LCD with Chinese UI |
| Power | Rechargeable Li-ion Battery (≥24 h continuous operation) |
| Data Storage | 1000 measurement records with non-volatile memory |
| Connectivity | Built-in Bluetooth module (optional Bluetooth printer support) |
| Calibration | Automatic zero-point correction and software-based calibration |
Overview
The Genetc GH-61A Integrated Smart Flue Gas Velocity Analyzer is a field-deployable, microprocessor-controlled instrument engineered for accurate in-situ determination of flue gas velocity and related thermodynamic parameters in industrial exhaust systems. It operates on the principle of the Pitot tube parallel sampling method—compliant with GB/T 16157–1996 and HJ/T 48–1999—enabling simultaneous acquisition of dynamic pressure, static pressure, flue gas temperature, and derived metrics including average gas velocity and standard dry volumetric flow rate (Nm³/h). Unlike modular or benchtop analyzers requiring external transducers or data loggers, the GH-61A integrates all sensing elements, signal conditioning circuitry, computation engine, and human-machine interface into a single ruggedized enclosure. This architecture eliminates inter-unit calibration drift, reduces field setup time, and ensures measurement consistency across repeated traverses in ducts, stacks, and kiln exhausts.
Key Features
- Monolithic mechanical design optimized for handheld portability and stable positioning during traverse measurements in confined or elevated sampling ports.
- Imported high-precision differential pressure sensor with low thermal drift (<0.02% FS/°C), enabling reliable dynamic and static pressure resolution under variable ambient conditions.
- Integrated K-type thermocouple with ±1.5 °C accuracy (0–200 °C range) for real-time flue gas temperature compensation in velocity calculations per ISO 10780 and EPA Method 2.
- Embedded ARM-based microcontroller with surface-mount technology (SMT) assembly, delivering high noise immunity and long-term operational reliability in electrically noisy industrial environments.
- Automatic zero-point correction algorithm that compensates for sensor offset drift prior to each measurement cycle, reducing manual intervention and improving repeatability.
- Onboard calculation engine compliant with standard gas law corrections—including moisture content adjustment, barometric pressure normalization, and molecular weight estimation—for standardized dry flow reporting.
Sample Compatibility & Compliance
The GH-61A is validated for use in circular, rectangular, and irregular cross-section ducts with internal diameters ≥150 mm and flue gas temperatures up to 200 °C. It supports both single-point and multi-point traverse configurations per GB/T 16157–1996 Annex A. The instrument meets electromagnetic compatibility (EMC) requirements per GB/T 18268.1–2010 (equivalent to IEC 61326-1) and environmental protection standards for field instrumentation. While not certified to ISO/IEC 17025 as a standalone calibration system, its measurement traceability is maintained through factory calibration against NIST-traceable pressure and temperature references. Data integrity aligns with GLP principles via timestamped, non-erasable record storage and audit-ready export formats.
Software & Data Management
All measurements are stored in non-volatile flash memory with automatic timestamping (year/month/day/hour/minute), location tagging (via optional GPS input), and sequential indexing. The device supports direct data export via Bluetooth 4.2 BLE protocol to Android/iOS tablets or Windows PCs running Genetc’s free PC Utility v2.1—compatible with CSV and Excel (.xlsx) formats for integration into LIMS or regulatory reporting workflows. Firmware updates are delivered via USB-C interface with checksum verification. No proprietary drivers or cloud dependencies are required; local data management ensures compliance with data sovereignty requirements in regulated sectors.
Applications
- Regulatory stack testing for CEMS validation and periodic emission audits under China’s “Pollutant Discharge Permit System”.
- Performance evaluation of desulfurization (FGD), denitrification (SCR/SNCR), and particulate control systems (ESP, baghouses).
- Energy efficiency assessments in coal-fired boilers, cement kilns, glass furnaces, and waste incinerators.
- Commissioning and troubleshooting of induced draft (ID) and forced draft (FD) fans in thermal power plants.
- Pre-compliance screening for ISO 50001 energy management system certification.
FAQ
Does the GH-61A support automatic traverse averaging across multiple sampling points?
Yes—the device calculates arithmetic mean velocity, integrated flow, and pressure-weighted averages per GB/T 16157–1996 Annex B when multi-point data is entered sequentially.
Is firmware update capability available in the field?
Yes—updates are performed via USB-C connection using Genetc’s signed firmware packages; no internet access required.
Can the instrument be used for wet flue gas streams?
It is rated for flue gases with dew point ≤100 °C; for condensing conditions, optional heated probe accessories are recommended to prevent liquid ingress.
What is the calibration interval recommendation?
Annual recalibration is advised; field zero-checks before each measurement campaign are mandatory per HJ/T 48–1999 Section 6.3.
Does the GH-61A meet FDA 21 CFR Part 11 requirements?
No—it is not designed for pharmaceutical process validation; however, its audit trail functionality satisfies basic GLP documentation needs for environmental monitoring.
