Handheld SO2F2 gas detector multi gases analyzer HCL HCN HBR COCL2
Detection gas:HCL HCN HBR COCL2
Range:custom
Detection Principle:Catalytic combustion / Electrochemical / Infrared
Resolution:custom
Detection Accuracy:±2%F.S
Model:HNAG920
Product Description
Portable Pumping & Diffusion Combustible Gas Detector HNAG920 is suitable for real-time and accurate detection of gas concentration and leakage in various environments, with advantages such as fast response, high measurement accuracy, excellent stability, and repeatability. It supports both pumping and diffusion modes in one unit, can be expanded to detect up to 5 gases simultaneously, and supports 4G/WiFi/Bluetooth/LoRa wireless transmission modes. The device is equipped with a built-in 2400mAh lithium battery.
Product features of Portable pump suction diffusion type combustible gas concentration detector
● Equipped with a 32-bit microprocessor and high-speed, high-precision processing circuitry for fast and accurate measurements.
● Features an external USB port for data export and deletion via USB cable connection to a computer.
● Supports up to 5 different sensors for flexible detection.
● Built-in buttons for easy parameter viewing and configuration.
● Allows unit switching (e.g., ppm ↔ mg/m³) through coefficient adjustment.
● Customizable historical data storage intervals.
● Supports Chinese/English language display switching.
● Fall alarm / one-touch emergency alarm function.
● 180° auto-rotating screen.
● Temperature & humidity compensation.
● PC+TPU (rubber overmolding process) for impact resistance.
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FAQ
Q: What gases can it detect? What are the accuracy and range?
A: This depends on the instrument configuration. There are single-gas detectors (e.g., for H₂S or CO only) and multi-gas detectors (capable of simultaneously detecting 4–6 gases; common combinations include: combustible gas EX, oxygen O₂, carbon monoxide CO, and hydrogen sulfide H₂S). The range and accuracy (e.g., ±3% FS) are clearly indicated in the product manual. Confirm whether they meet your application scenario (such as confined space entry or industrial inspections) before purchasing.
Q: How accurate are the detection results? How is accuracy ensured?
A: Accuracy relies on regular calibration. New instruments are calibrated before leaving the factory, but sensors may drift during use. Calibration must be performed according to the manufacturer's requirements:
"Zero calibration": Conduct in clean air.
"Gas calibration": Use standard gas with a known concentration.
Calibration is recommended every 180 days or once a year, depending on safety regulations.
Q: What is the sensor lifespan? Are replacement costs high?
A: Sensors have a limited lifespan (typically 2–3 years for electrochemical sensors, 2–3 years for catalytic bead sensors, and longer for infrared/PID sensors). Readings become inaccurate when the sensor reaches the end of its lifespan or is damaged, requiring replacement. Sensors are the main consumable; inquire about replacement costs and ease of operation for the specific model before purchase.
Q: What should I do when the alarm activates?
A: The instrument is designed with three-level alarms (audible, visual, and vibratory) for low/high limits, TWA, and STEL. Once the alarm activates:
Immediately check the screen to confirm which gas exceeds the limit and its concentration.
Follow safety procedures: Evacuate the hazardous area immediately, moving upwind.
Report to the supervisor, and record and inspect the instrument in a safe area.
Never turn off the alarm in a hazardous area!
Q: How long does the battery last? Is charging convenient?
A: Mainstream instruments use rechargeable lithium batteries, typically offering 10–14 hours of battery life (sufficient for one shift). It is crucial to choose a charger with "explosion-proof" certification or use a safe charging dock. Some models support battery replacement for uninterrupted operation.
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