Overview
The BH-90A-NO is a Portable single Gas detector produced by the BOSEAN brand, dedicated to the detection of nitric oxide (NO). The instrument adopts mainstream 8-bit micro-control technology, with the characteristics of fast Response speed, high Measurement accuracy, good Stability and Repeatability, and simple operation. Its small size, high waterproof performance with IP65 protection level, high strength ABS material, equipped with sound, light and vibration three-level alarm function, safe and reliable. The instrument has a built-in 3.7V rechargeable lithium battery, which can work continuously for more than 10 hours.
Features
1. Adopt Industrial Sensor to Ensure Reliability.
2. Mainstream 8-bit micro-control technology, stable performance.
3. The fuselage is compact, easy to operate, and easy to carry and use.
4. With IP65 protection level, waterproof and dustproof, adapt to harsh environment.
5. Fast Response and High Sensitivity.
6. Long Standby Time, Continuous Operating Time more than 10 hours.
7. Supports more than 30 types of Sensors, and can flexibly configure or customize Gas detection types according to needs.
Principle
The Portable Gas detector uses the diffusion Sampling method. The target gas in the environment enters the Sensor through the diffusion hole of the instrument housing. The Sensor (for nitric oxide NO as the principle of electrochemistry) reacts with the gas to generate an electrical signal proportional to the gas concentration. The signal is processed by the instrument's microcontroller and finally displayed on the 1.77-inch high definition screen. Real-time gas concentration values.
Applications
Petrochemicals, metallurgy and smelting, environment monitoring, emergency rescue, municipal pipe network, laboratory, warehousing and logistics, sewage treatment, tunnel construction, coal mining
Standards
GB3836.1-2010、GB3836.4-2010、GB15322.3-2003、JJG693-2011、JJG365-2008、JJG695-2003、JJG915-2008
Steps
1. Press the power button for a long time to turn it on, and the instrument will self-test.
2. After the self-test is completed, the instrument enters the detection state, and the screen displays the current gas concentration.
3. Through the menu key, you can view historical alarm records (up to 1000 groups) or set parameters (such as high and low alarm values).
4. When the detected gas concentration exceeds the preset alarm point, the instrument will trigger the sound, light and vibration alarm.
5. After use, press the power button for a long time to shut down.
6. When the power is insufficient, use the matching charger to charge the instrument, and the Charging time is less than 5 hours.
Notice
• Measurement valid period of the instrument should be used, this model Measurement certificate number is: preparation 01000158.
• Do not use under conditions exceeding the working Ambient Temperature (-20~ 50 ℃) and Humidity (0~ 95% RH non-condensation).
• Avoid instrument from being strongly impacted or immersed in water for a long time.
• Sensor life is about 2 years, and it needs to be replaced in time to ensure detection accuracy.
• The alarm value setting must comply with relevant safety regulations, and non-professionals should not modify it at will.
• Please use the original or designated charger when charging, and ensure the safety of the environment.
• The explosion-proof mark of this instrument is Exib IIB T3 Gb, please use it in the specified explosive gas environment.
When the instrument alarms, appropriate safety measures should be taken immediately and evacuated to a safe area.
