High-precision gas detection explosion-proof alarm for ammonia (NH3) detection, used in garbage stations.

Beisian Intelligent Technology Ammonia NH3 Gas Alarm

Product Introduction

The Beisian Intelligent Technology Ammonia NH3 Gas Alarm BSA/QT-BJ(NH3) is a toxic gas detector featuring a modular design, intelligent sensor detection technology, overall flameproof (d) structure, and fixed installation. The standard configuration includes a dot-matrix LCD display, three-wire 4~20mA analog and RS485 digital signal outputs. Optional configurations include programmable switch output modules, etc. Customized products are provided according to user requirements, and it also supports functions such as output signal fine-tuning, facilitating system networking and maintenance.

Features

■ Intelligent EC sensor adopting intrinsic safety technology, supporting multi-gas and multi-range detection, providing customized products according to user needs, and allowing sensor interchange, offline calibration, and zero self-calibration without tools

■ Intelligent temperature and zero compensation algorithms give the instrument superior performance and excellent selectivity, avoiding interference from other gases on the detected gas

■ Multiple signal outputs allow for easy integration into PLC/DCS and other industrial control systems, or use as a standalone controller

■ Extra-large dot-matrix LCD display supporting Chinese and English interfaces

■ Maintenance by a single person without opening the cover, using an infrared remote control

■ Local alarm indication, integrated audible and visual alarm (optional)

■ The instrument has over-range and reverse polarity protection to avoid dangers caused by improper human operation

■ Rich electrical interfaces for users to choose from

■ Certified by ATEX, UL, CSA, etc., possessing international high-end quality

Technical Parameters:

■ Product Name: Ammonia NH3 Alarm   BSA/QT-BJ(NH3)

■ Detected Gas: Ammonia NH3

■ Detection Principle: Electrochemical principle, Catalytic combustion principle

■ Detection Range: 0-10ppm, 0-20ppm, 0-50ppm, 0-200ppm, 0-5000ppm, etc. (optional)

■ Resolution: 0.1ppm, 0.1ppm, 0.2ppm, 1ppm, 25ppm, etc. (optional)

■ Detection Method: Diffusion type, Pump suction type (optional)

■ Display Method: LCD display

■ Output Signal: Determined by user's actual requirements, maximum transmission distance of 2000 meters (single-core 1mm² cable)

① Two-wire 4-20mA current signal output (three-wire optional)

② RS-485 digital signal output, can store data on computer with RS232 adapter card (optional)

③ 2 groups of relay outputs: Passive contact capacity 220VAC3A, 24VDC3A (optional)

④ Alarm signal output: On-site audible and visual alarm, alarm sound: <90 decibels (optional)

■ Detection Accuracy: ≤±2% (F.S)

■ Repeatability: ≤±1%

■ Zero Drift: ≤±1% (F.S/year)

■ Alarm Mode: Audible and visual alarm

■ Response Time: Less than 20S

■ Recovery Time: Less than 20S

■ Explosion-proof Type: Intrinsically safe type

■ Explosion-proof Mark: Ex d II C T6 Gb

■ Protection Rating: IP65

■ Direct Reading: PPM, %LEL, %VOL arbitrarily settable

■ Sensor Life: 24 months

■ Operating Environment: Temperature -20℃~+70℃; Relative humidity ≤95%RH (non-condensing)

■ Working Power: 24VDC (Normal operating voltage range: 10～30VDC)

■ Dimensions (including probe length): 170×140×80mm

■ Weight: 1.5Kg

■ Shell Material: Stainless steel/Aluminum alloy

■ Standard Accessories: Manual, Certificate of conformity, Delivery list, Warranty card, Packing box, 220V to 24V power supply (optional), RS485 to RS232 (for computer connection, optional)

Design Standards

GB50493-2009 "Design specification for combustible gas and toxic gas detection and alarm in petrochemical industry"

GB 12358-2006 "General technical requirements for gas detection and alarm instruments for workplace atmosphere"

Execution Standards

GB3836.1-2010 "Electrical apparatus for explosive gas environments - Part 1: General requirements"

GB3836.2-2010 "Electrical apparatus for explosive gas environments - Part 2: Flameproof enclosure 'd'"

Q/BSA 01-2019 "Enterprise Execution Standard of Shenzhen Beisian Intelligent Technology Co., Ltd."

Application Places

Petrochemical, chemical plants, smelters, steel plants, coal plants, thermal power plants, pharmaceutical research, pharmaceutical production workshops, tobacco companies, environmental monitoring, school research, building construction, fire alarm, sewage treatment, industrial gas process control, boiler rooms, waste treatment plants, tunnel construction, oil pipelines, gas stations, underground gas pipeline maintenance, indoor air quality detection, safety protection in hazardous places, etc.