Service hotline:400-728-7728
Mobile phone:181-5178-9348
Mailbox:popularize@kqet.com.cn
Address: 1001, Building 2, No. 209 Zhuyuan Road, Suzhou High tech Zone
The KQET-5018S series is a remote laser airborne particle counter with low flow rate of 2.83L, a testing instrument applied in the fields of cleanliness monitoring and micro-particle counting detection in clean environments.
Based on the light scattering principle, the counter realizes the detection of airborne particle size distribution and the counting of particle quantity through photoelectric sensing technology.
This instrument features visual calibration convenience, good stability, high measurement accuracy, small size, light weight, and easy installation. It is widely used in clean scenarios such as pharmaceutical, electronics, semiconductor, hospital operating rooms, aerospace, precision machining, environmental protection, microbiology, and food industries.
• High-precision sensor, accurate counting, excellent performance, in line with JJF1190-2008 Specification
• Compact size for convenient installation
• 4.3-inch intelligent touchscreen, rapid response, human-machine interaction, real-time display of monitoring data.
• Built-in vacuum source with a 3-year long service life, low vibration, low noise, and stable performance to ensure stable counting
• More professional industrial design, ensuring complete functional interfaces while maintaining aesthetics
• Can be started/stopped locally independently, suitable for both standalone and online use
• Can set its own instrument address directly on the screen for easy on-site replacement
• Calibration due alert to remind customers of metering/calibration
• Screen data alarms and Equipped with a flow sensor for real-time monitoring and automatic adjustment of flow rate, ensuring flow stability and counting accuracy
• 10-year service life imported semiconductor laser diode; annual calibration recommended.
• RS485 communication, supports Modbus RTU protocol, and customized communication protocols
• Intelligent IoT capabilities allow for remote start/stop, more accurate cleanliness level management, and enhanced monitoring quality
• Expandable analog input hardware interfaces, allowing for external connections to temperature and humidity sensors, airspeed sensors, pressure differential sensors, etc. (optional)
• USB data export functionality, effective local data storage for over a month to prevent data loss (optional)
• Real-time monitoring of particle quantities with particle sizes of 0.5μm and 5.0μm; expandable to monitor 6 particle size ranges: 0.3μm, 0.5μm, 1μm, 3μm, 5μm, and 10μm
• Built-in audio-visual alarm light, >85db
• Counter can be equipped with a wireless antenna, upgraded to wireless transmission mode (optional)
Model |
KQET-5018S |
KQET-5018SM |
KQET-5018SG |
Particle Size Range |
0.2μm~10.0μm |
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Particle Size Channels |
0.5μm, 5.0μm |
0.3μm, 0.5μm, 1.0μm, 3.0μm, 5.0μm, 10.0μm |
0.2μm, 0.5μm, 1.0μm, 3.0μm, 5.0μm, 10.0μm |
Particle Size Distribution Error |
/ |
≤±20% |
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Concentration Indication Error |
0.5μm≤±20%FS |
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Maximum Sampling Concentration |
35000 particles/L |
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Repeatability Error |
±5%FS |
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Self-Purification Time |
≤5min |
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Sampling Flow Rate |
2.83L±5% |
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Laser Source |
10-year service life imported semiconductor laser diode |
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Vacuum Source |
Built-in vacuum source, 3-year service life |
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Display |
4.3-inch touchscreen |
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Power Supply |
DC24V/1A |
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Communication Mode |
RS485 @ Modbus RTU / Ethernet @ Modbus TCP / Wireless Communication @ LoRa |
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Calibration Specification |
JJF1190-2008/ISO 21501-4 |
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Enclosure |
304 stainless steel |
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Dimensions (mm) |
Width 94 * Depth 152 * Height 80 |
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Operating Environment |
Temperature 0~40°C, Humidity 10%~90% (no condensation) |
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Storage Environment |
Temperature -10~50°C, Humidity 0~90% (no condensation) |
Address: 1001, Building 2, No. 209 Zhuyuan Road, Suzhou High tech Zone
Phone: 0512-68561567
Fax: 400-728-7728
Website: www.kqet.com. cn
Email: popularize@kqet.com.cn