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| Brand | BAIF-MAIHAK |
|---|---|
| Model | QGS-08C EX |
| Type | Non-Dispersive Infrared (NDIR) Gas Analyzer |
| Detection Principle | Selective Infrared Absorption |
| Light Source | High-Power Stable IR Source |
| Detector | Thin-Film Microphone Detector (Capacitive) |
| Optical Path | Single-Source, Series Dual-Absorption Chamber |
| Display | Backlit LCD with Full Chinese Menu Interface |
| Signal Processing | Fully Digital Signal Processing (DSP) |
| Output | Isolated 4–20 mA (also supports 0/2–20 mA), Load ≤ 400 Ω |
| Communication | RS-232, Modbus-RTU |
| Safety Certification | Ex d IIB T6 Gb (for QGS-08C EX variant) |
| Environmental Protection Compliance | Meets China’s HJ 75–2017 & HJ 76–2017 for CEMS applications |
| Enclosure Rating | IP65 (industrial dust/water resistance) |
| Power Supply | AC 220 V ± 10 %, 50 Hz |
| Warm-up Time | ≤ 30 min to operational stability |
| Operating Temperature | –10 °C to +50 °C |
| Storage Temperature | –20 °C to +60 °C |
| Brand | BAIF-MAIHAK |
|---|---|
| Model | QRD-1102C |
| Detection Principle | Thermal Conductivity Differential Measurement |
| Target Gases | H₂, Ar, and other binary/multicomponent gas mixtures |
| Output Signals | Isolated 4–20 mA (≤400 Ω load), relay status outputs (calibration, fault, alarm, range switching) |
| Communication | RS-232, Modbus-RTU |
| Display | Backlit LCD with Chinese menu interface |
| Construction | All-metal gas path, corrosion-resistant sensor elements |
| Environmental Rating | Industrial-grade housing, pressure-rated flow path |
| Certifications | Compliant with GB/T 13283–2008 (Industrial Process Analyzers), designed for GLP-aligned operation in continuous monitoring environments |
| Power | AC 220 V ±10%, 50 Hz |
| Operating Temperature | 0–40 °C |
| Relative Humidity | ≤90% RH (non-condensing) |
| Brand | BAIF-MAIHAK |
|---|---|
| Model | QGS-08CN |
| Origin | Beijing, China |
| Detection Principle | Infrared Photoacoustic Spectroscopy (PAS) |
| Configurable Modules | Up to 3 (e.g., Photoacoustic IR, Paramagnetic O₂, Electrochemical, Thermal Conductivity) |
| Max Simultaneous Gases | 3 |
| Measurement Interval | 0.5–20 s (gas-dependent) |
| Display | 7-inch TFT capacitive touchscreen |
| Analog Outputs | 4 × 0–20 mA (configurable per channel) |
| Digital Interfaces | RS232, MODBUS-RTU |
| Relay Outputs | 8 programmable (zero cal, span cal, fault, alarm, etc.) |
| Zero Gas Options | 2 independent zero references (including negative offset for cross-sensitivity compensation) |
| Span Calibration Gases | Up to 4 user-defined calibration standards |
| Intermediate Range Functionality | Supported (non-zero-start measurement ranges) |
| Data Hold | Active during calibration or maintenance |
| Cross-Sensitivity Compensation | Built-in lateral sensitivity correction algorithm |
| Compliance Status | Listed in Zhongguancun National Innovation Demonstration Zone’s 2016 Government Procurement Catalog for New Technologies and Products |
| Brand | BAIF-MAIHAK |
|---|---|
| Model | BM08 Ex |
| Measurement Principle | Infrared Photoacoustic Spectroscopy (PAS) with Optional Electrochemical, Thermal Conductivity & Trace Moisture Modules |
| Maximum Module Capacity | 3 (e.g., dual PAS + 1 TCD or electrochemical O₂) |
| Response Time per Component | 0.5–20 s (dependent on number of components and measurement ranges) |
| Enclosure Rating | Explosion-Proof (Ex d IIB T4 Gb / Ex ib IIB T4 Gb configurable per module) |
| Display | 7-inch capacitive touchscreen HMI |
| Analog Outputs | 4 × 0–20 mA (configurable per channel) |
| Digital Interfaces | RS232, MODBUS-RTU |
| Relay Outputs | 5–8 programmable (zero calibration, span calibration, fault, alarm, etc.) |
| Mid-Range Scaling | Supported (non-zero start span definition) |
| Zero Gas Options | Dual independent zero gas references (including negative offset for cross-sensitivity compensation) |
| Span Calibration Gases | Up to 4 user-defined calibration gas values with component-specific assignment |
| Data Hold Function | Active during calibration or maintenance operations |
| Compliance | Designed to meet GB 3836.1–2010 / GB 3836.2–2010 (China Ex), CE marking applicable per module configuration |
| Origin | Beijing, China |
| Distributor Type | Authorized distributor (non-manufacturer) |
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