Refrigerant R404A Detector BSA/QT-BJ (R404A)

R404A Refrigerant Characteristics

Physicochemical Properties: R404A is a chlorine-free non-azeotropic mixed refrigerant. It is a colorless gas at room temperature and pressure, and is stored in steel cylinders as a compressed liquefied gas. Its ODP is 0, making R404A an environmentally friendly refrigerant that does not damage the atmospheric ozone layer.

Main Applications: R404A is primarily used to replace R22 and R502. It is characterized by cleanliness, low toxicity, non-flammability, and excellent cooling effects, and is widely used in medium and low-temperature refrigeration systems.

Main Applications: Widely used in household air conditioners, small commercial air conditioners, residential air conditioners, etc.

Product Description of R404A Detector Dedicated for Air Conditioning and Refrigeration Unit Rooms:

Suitable for continuous online concentration detection in various industrial and special environments. The instrument adopts imported electrochemical sensors and microcontroller technology, featuring advantages such as stable signals, high precision, and good repeatability. The explosion-proof wiring method is suitable for various hazardous locations. The instrument is compatible with various control alarms, PLCs, DCS, and other control systems, enabling functions such as remote monitoring, remote control, remote alarm, and computer data storage and analysis.

Features of R404A Detector Dedicated for Air Conditioning and Refrigeration Unit Rooms:

--On-site LCD display of gas concentration; --High-precision, long-life imported electrochemical and infrared sensors; --Powerful software setting support, meeting customer needs for any range between 1.0000-99999 and all gas detection requirements; --Alarm point adjustment, zero adjustment, and target point calibration can be performed without opening the cover via the controller or remote control; --Suitable for detecting dozens of gases, with the option to display dozens of common gas names; --Gas unit names PPM, %LEL, %VOL can be set arbitrarily; --The program calculation uses three-digit floating-point technology to ensure calculation accuracy; --Upper and lower limit alarm points can be set arbitrarily within the full range; --RS485 bus communication, simple and convenient wiring; --4-20mA current output signal, correctable, fully isolated, with strong product immunity; --2 groups of normally open passive contact outputs for controlling AC contactors of fans or solenoid valves; --Exquisite power design, lightning protection design, and pure SMT component patch process ensure stable product performance; --Ingenious structural design allows for detector wiring without screws, making installation extremely simple;

Design Standards

GB50493-2009 "Design Specification for Combustible Gas and Toxic Gas Detection and Alarm in Petrochemical Enterprises"

GB 12358-2006 "General Technical Requirements for Gas Detection and Alarm Instruments for Workplace Atmosphere"

Execution Standards

GB3836.1-2010 "Electrical Equipment for Explosive Gas Atmospheres - Part 1: General Requirements"

GB3836.2-2010 "Electrical Equipment for Explosive Gas Atmospheres - Part 2: Flameproof Enclosure 'd'"

Application Sites for R404A Detector Dedicated for Air Conditioning and Refrigeration Unit Rooms

Cold storage machine rooms, air conditioning machine rooms, train sets, petrochemical industry, 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.