1、 Introduction to indoor oxygen detection transmitter

The BYC100-O2 indoor oxygen detection transmitter is a device developed and produced by Shenzhen Boyunchuang Environmental Technology Co., Ltd. for indoor air quality. It is mainly used to measure the content of O2 gas in indoor air, provide effective O2 concentration data, remind users to take safety measures, and drive functions such as fresh air system linkage, providing users with a comfortable home environment. The product adopts original imported electrochemical principle sensors and computing chips, which have the characteristics of high precision, high resolution, and good stability. Widely used in building HVAC, building energy conservation, smart homes, medical institutions, underground garages, airport stations and other places.

2、 Gas Introduction

Oxygen (02) is the most widely distributed element in nature, accounting for 48.6% of the crustal mass and being the most abundant element. Oxygen is required for the oxidation of hydrocarbons, treatment of wastewater, rocket propellants, and for respiration of animals and humans in aviation, aerospace, and diving. Animal respiration, combustion, and all oxidation processes (including the decay of organic matter) consume oxygen. But oxygen in the air can be continuously replenished through the photosynthesis of plants. In the cutting and welding of metals. It is a mixture of oxygen with a purity of 93.5%~99.2% and combustible gas (such as acetylene) to produce a flame at extremely high temperatures, thereby melting the metal. The metallurgical process cannot do without oxygen. Oxygen is also required to enhance the production process of nitric acid and sulfuric acid. Blowing a mixture of oxygen and water vapor into a gasifier without using air can produce high calorific value gas. Medical gas is extremely important.

3、 Characteristics of indoor oxygen detection transmitter

1. Stable and reliable communication, wide range power supply DC12-24V;

2. Comprehensive anti reverse, overvoltage, overcurrent, and inter line protection capabilities;

3. Carefully designed circuit software and hardware, with low failure rate and short stability time;

4. Original imported electrochemical sensors and professional grade signal processing chips ensure the accuracy of sensor data;

5. The structure takes into account aerodynamic principles to achieve automatic real-time sampling, which can be used for a long time;

6. The measurable environmental parameters cover a wide range and can meet various detection environment requirements;

7. Output 4-20mA, 0-10V, RS485 and other signals for easy use.

4、 Gas content standard

Oxygen concentration (% volume)	human bodySigns (under atmospheric pressure)
10～12%vol	Rapid breathing, loss of judgment, purple lips
15～19%vol	Reduce work efficiency and may lead to problems with the head, lungs, and circulatory system
19.5%	Minimum allowable concentration of oxygen
20.9%	Normal oxygen concentration
＞23.5%	oxygen

6、 Technical parameters of indoor oxygen detection transmitter

Technical Parameter	BYC100-O2
Detect gas	oxygen（O2）
Detection Principle	electrochemistryDetection Principle
measuring range	0～25%vol 0～100%vol
resolution	0.1%vol
accuracy	≤±1%F.S
Warm-up time	30S
sampling interval	3S
response time（T90）	＜3minute
service life	2-3year
zero drift	＜±1%
Nonlinear	＜1%F.S
repeatability	±1%
Supply Voltage	DC 12～24V
signal output	4～20mA0～10VRS485 modbus RTU
work environment	-10～50℃； 0-95% RH (no condensation)
Environment	-30～60℃； 0-100% RH (no condensation)
Shell material	Plastic ABS
protection grade	IP30
Installation method	Wall mounted and ceiling mounted
Weight/Size	120g/ 110mm×70mm×38mm
notes

6、 Installation of indoor oxygen detection transmitter size

1. First, fix the installation disk on the wall.

2. After connecting the equipment, fix it on the installation disk.

3. Do not connect the transmitter to a voltage higher than 24VDC. To prevent excessive voltage from burning out the sensor.

4. Install the transmitter at the location that needs to be tested, away from the heating element or steam source, and prevent direct sunlight.