Portable Four-Channel Flue Gas and Ambient Air Sampler
- Product Number:LD-2720 Series
- Product Difference:Sampling of various toxic and harmful gases and VOCs in ambient air and flue gas
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Online ConsultationProduct Introduction
The Portable Four-Channel Flue Gas and Ambient Air Sampler is an integrated sampling device combining ambient air, VOCs, flue gas sampling, and flue gas VOC sampling functions. It represents our company's comprehensive solution for sampling various toxic and harmful gases and VOCs in environmental air and flue gas. This instrument features low power consumption, low noise, compact size, light weight, high load capacity, and superior sampling performance.
The sampling unit employs an imported brushless diaphragm pump for atmospheric and flue gas sampling. Extensive testing has achieved a flow rate resolution of 0.1 mL/min for Model A VOC sampling, with a true display error of ±2.5% across the entire flow range, making it suitable for solution absorption sampling. An optional built-in battery ensures over 5 hours of continuous sampling with all functions activated simultaneously.
The instrument can be equipped with an optional GPRS wireless transmission module, enabling remote control via the internet and real-time monitoring of operational status. Through extensive long-term testing, the sampler meets the requirements for sustained, trouble-free operation even in harsh field environments.
| Model | Specifications |
| LD-2720-3 | 2-channel constant-flow atmospheric sampling + 2-channel constant-flow VOC sampling |
| LD-2720-4 | 4-channel constant-flow atmospheric sampling |
| LD-2720-5 | 2-channel constant-flow flue gas sampling + 2-channel constant-flow VOC sampling |
| LD-2720-6 | 4-channel constant-flow flue gas sampling |
| LD-2720-7 | 4-channel constant-flow VOC sampling |
Product Features
Low power consumption, minimal noise, lightweight, compact structure, simple and elegant appearance, easy to carry.
Atmospheric sampling, VOC sampling, flue gas sampling, flue gas VOC sampling, customizable configurations per client requirements, multiple environmental assessment solutions.
Atmospheric sampling utilizes an imported brushless diaphragm pump featuring low noise, high load capacity, and stable flow rate, integrated with a molded orifice plate flowmeter.
Model A VOC sampling achieves flow resolution down to 0.1mL/min. The orifice plate incorporates a built-in waterproof sensor, preventing corrosion damage from backflow of absorbent liquid and significantly reducing instrument failure rates.
Scheduled sampling with independent control for each sampling channel, allowing any start time within the day.
External racks for absorption bottles and drying tubes facilitate equipment portability; customizable external high-performance thermostatic chambers available for temperature maintenance.
Power failure recovery with real-time sampling progress logging and automatic resumption upon power restoration.
User interface: Features an oversized touchscreen display with a rich, intuitive interface for easy operation.
Storage and printing: Supports up to one million sample files. Optional Bluetooth printer available for printing stored data.
Optional built-in battery enables continuous sampling for over 5 hours with all functions activated simultaneously.
VOC sampling flow rate ranges (10–300) ml/min and (10–600) ml/min are selectable, meeting ultra-low sampling flow requirements.
Built-in imported high-performance sampling pump enables constant-temperature, constant-flow sampling for flue gas, ambient air, and VOCs, with independent control of flow rate and sampling duration.
Supports Wi-Fi or 4G/5G remote data transmission functionality.
Product parameters
Atmospheric VOC Measurement Parameters
| Item | Parameter Range | Resolution | Display Error |
| Atmospheric Sampling Flow Rate | (0.1–1.0) L/min | 0.001 L/min | Better than ±2.5% |
| Dual-Channel VOC Sampling Flow Rate (Model A) | (10–300) mL/min | 0.1 mL/min | Within ±5% for (10–100) mL/min |
| (100–300) mL/min Better than ±2.5% | |||
| Dual-Channel VOC Sampling Flow Rate (Model B) | (10–600) mL/min | 0.001 L/min | (10–200) mL/min better than ±5% |
| (200–600) mL/min Better than ±2.5% | |||
| Pre-measurement Temperature | (-40 to 85) °C | 0.1 °C | Better than ±2 °C |
| Pre-calibration Pressure | (-45 to 0) kPa | 0.01 kPa | Better than ±0.4 kPa |
| Ambient Temperature | (-40 to 85) °C | 0.1℃ | Better than ±1℃ |
| Atmospheric Pressure | (-50 to 130) kPa | 0.01 kPa | Better than ±0.5 kPa |
Atmospheric VOC Sampling Parameters
| Item | Parameter Range | |||
| Atmospheric Sampling Load Capacity | 0.2L/min | 0.5L/min | 0.8L/min | 1.0L/min |
| 40kPa | 20kPa | 10kPa | 10kPa | |
| VOC Sampling Load Capacity | 200mL/min(Model A) | 600mL/min(Model B) | ||
| 6.5kPa | ||||
| Sampling Method | Manual Sampling: Starts sampling immediately after initiation | |||
| Automatic Sampling: Scheduled sampling throughout the day | ||||
| Sampling Duration | Single sampling duration: 1 minute to 99 hours | |||
| Sampling interval: 1 minute to 99 hours | ||||
| Number of Samples: 1 to 99 times, single or cyclic sampling | ||||
Flue Gas VOC Measurement Parameters
| Primary Parameters | Parameter Range | Resolution | Accuracy |
| Flue Gas Sampling Flow Rate | (0.1 to 1.5) L/min | 0.01 L/min | ≤±2.0% FS |
| Dual-Channel VOC Sampling Flow Rate (Model A) | (10–300) mL/min | 0.1 mL/min | (10–100) mL/min better than ±5% |
| (100–300) mL/min better than ±2.5% | |||
| Dual-Channel VOC Sampling Flow Rate (Model B) | (10–600) mL/min | 0.001 L/min | (10–200) mL/min better than ±5% |
| (200–600) mL/min better than ±2.5% | |||
| Flow Stability | ±2.0% (voltage fluctuation ±20%, resistance variation within 3–6 kPa) | ||
| Upstream Pressure | (-40 to 0) kPa | 0.01 kPa | ≤± 1.0% FS |
| Upstream Temperature | (-55 to +125)°C | 0.1°C | ≤±2.0°C |
VOC Sampling Parameters for Flue Gas
| Primary Parameters | Parameter Range | Resolution | Accuracy |
| Flue Gas Sampling Flow Rate | (0.1 to 1.5) L/min | 0.01 L/min | ≤±2.0% FS |
| Dual-Channel VOC Sampling Flow Rate (Model A) | (10–300) mL/min | 0.1 mL/min | (10–100) mL/min better than ±5% |
| (100–300) mL/min better than ±2.5% | |||
| Dual-Channel VOC Sampling Flow Rate (Model B) | (10–600) mL/min | 0.001 L/min | (10–200) mL/min better than ±5% |
| (200–600) mL/min better than ±2.5% | |||
| Flow Stability | ±2.0% (voltage fluctuation ±20%, resistance variation within 3–6 kPa) | ||
| Upstream Pressure | (-40 to 0) kPa | 0.01 kPa | ≤± 1.0% FS |
| Upstream Temperature | (-55 to +125)°C | 0.1°C | ≤±2.0°C |
Other Parameters
| Key Specifications | Specification Range |
| Dimensions | Length × Width × Height: 225 × 210 × 128 (mm) |
| Main Unit Weight | 2.4kg (including lithium battery) |
| Power Consumption | VOC Sampling <20W; Atmospheric Sampling <20W; |
| Noise Level | VOC Sampling <50dB; Atmospheric Sampling <50dB; |
| Storage Capacity | One million sets |
| Printing | Bluetooth Micro Printer (Optional) |
| Power Supply | DC12V |
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