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This instrument collects particulate matter from the exhaust gas of fixed pollution sources using the pitot tube parallel constant-velocity (isokinetic) sampling method. Stack dust concentration is measured by the β-ray absorption method, and flue gas concentration by constant-potential electrolysis. It is suitable for measuring gas and dust concentration and total emissions at stationary pollution sources such as boilers, flues and industrial furnaces, and for checking the dust removal and desulfurization efficiency of equipment.
The LY-3012K Multifunction Stack Dust (Gas) Tester with β-ray dust direct reading is an all-in-one, high-precision environmental monitoring instrument. It measures particulate matter (dust) and flue gas concentrations at the same time, along with total emissions from fixed pollution sources. Particulate matter is collected by pitot tube parallel constant-velocity sampling, dust concentration is detected by β-ray absorption, and flue gas concentration is measured by constant-potential electrolysis, giving real-time, on-site results for industrial emission monitoring. It is a practical solution for users who need accurate, efficient and compliant emission testing at industrial facilities.
All-in-One Integrated Monitoring Design :
The system is highly integrated and combines a stack dust sampling pump, β-ray dust detection unit, flue gas sampling pump, flue gas pretreatment unit, flue gas sensor array, temperature/humidity sensors and an S-shaped pitot tube in a single unit. No external main unit is needed, so flue gas parameters, dust concentration and industrial operating conditions can all be measured in one testing cycle, which greatly improves on-site efficiency.
High-Precision & Safe β-Ray Detection Technology :
The β-ray dust direct reading tester uses a low-activity 14C β-ray exemption source with a stable decay process and an ultra-low radiation dose, in line with global radiation safety standards. A filter-belt type structure keeps the sampling and measurement stations separate, which prevents contamination of key components and protects long-term accuracy. With a high-precision β-ray detector, the minimum detection limit is 0.1 mg/m³, meeting the monitoring needs of ultra-low emission operating conditions.
Accurate Flue Gas Measurement & Intelligent Operation :
A built-in constant-potential electrolytic sensing module with an intelligent anti-interference compensation algorithm monitors multiple flue gas components accurately in real time. The built-in flue gas pretreatment system handles high-humidity flue gas, and timed automatic drainage removes the need for manual intervention so operation is not interrupted. The 5.5-inch touch controller offers wireless control and bilingual Chinese and English input for easy on-site operation.
The LY-3012K fixed pollution source flue gas analyzer is designed and manufactured in line with global emission monitoring standards for fixed pollution sources, including international specifications for β-ray absorption particulate matter concentration measurement and flue gas detection. Its low-activity radiation source meets global radiation safety exemption standards, so it is safe for on-site personnel. The instrument supports ultra-low emission monitoring requirements for industrial boilers and furnaces worldwide, and complies with environmental compliance testing protocols used by industrial enterprises, environmental protection agencies and third-party testing institutions.
| Parameter | Range |
|---|---|
| Flow Range | (0~60) L/min |
| Concentration Range | (0~50) mg/m³ |
| Sampling Probe Heating Temperature | 130°C (100°C~160°C optional) |
| Membrane Heating Temperature | 105°C (100°C~160°C optional) |
| Flue Gas Dynamic Pressure | (0~2000) Pa |
| Flue Gas Static Pressure | (-30~+30) kPa |
| Atmospheric Pressure | (50~130) kPa |
| Inlet Temperature | (-55~125) °C |
| Flue Gas Temperature | (0~500) °C |
| Isokinetic Sampling Velocity | (1~45) m/s |
| Moisture Content | (0~40) % |
| Parameter | Range / Indicator |
|---|---|
| Flue Gas Flow | Not less than 0.5 L/min |
| O₂ | (0~30) % |
| SO₂ | (0~5700) mg/m³ |
| NO | (0~1300) mg/m³ |
| NO₂ | (0~200) mg/m³ |
| CO | (0~5000) mg/m³ |
| CO₂ (Infrared) | (0~20) % |
| Parameter | Specification |
|---|---|
| Access Port Diameter | ≥ 460 mm |
| Sampling Nozzle Diameter | Standard φ4.5, φ6, φ7, φ8, φ10, φ12 |
| Length of Sampling Probe | Total length 1.5 m, effective length 1.3 m (customizable length) |
| Main Unit Weight | About 6.5 kg |
| Pitot Tube Coefficient | 0.84±0.01 |
This ultra-low concentration dust detector is used for stack dust and flue gas concentration and total emission measurement, efficiency assessment of dust removal and desulfurization equipment, on-site environmental compliance monitoring, and ultra-low emission detection for industrial boilers and furnaces.
It serves environmental protection supervision agencies and third-party testing and inspection institutions, as well as industrial and mining enterprises such as power plants, steel mills, cement plants, sugar mills, paper mills, smelters, ceramic factories, non-ferrous metal processing facilities, pharmaceutical plants, and chemical, fertilizer, rubber and materials production plants. It is also used in public health, occupational and work safety supervision, military applications, scientific research and education.
The LY-3012K is made by a professional manufacturer of environmental monitoring instruments with decades of R&D and manufacturing experience serving industrial and commercial clients worldwide. Its instruments have been shown at international environmental exhibitions and used in large industrial projects, with proven performance in harsh operating conditions. Support covers the full lifecycle: pre-sales customized solutions, pre-shipment calibration and testing, professional technical training and after-sales service. Standard products carry a 12-month quality warranty, standard models have short lead times, and customization is available for special monitoring requirements.
Here are some frequently asked questions about the LY-3012K. If you have any question which is not answered here, please feel free to contact us.
Standard products come with a 12-month quality assurance period starting from the date of successful equipment acceptance. The warranty covers free repair or replacement for malfunctions caused by material or manufacturing defects.
For standard models the lead time is 10-20 business days, covering production, assembly, complete machine testing and professional calibration. Customized configurations or bulk orders take longer, and our sales team will confirm an exact schedule after the contract is signed.
Yes. The instrument uses a low-activity 14C β-ray exemption source with a very stable decay process and an ultra-low radiation dose, in line with global radiation safety standards. It is safe for operators during long-term daily monitoring, and no additional radiation protection is required under normal operating conditions.
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