1、 Introduction to formaldehyde gas detection transmitter

The BYC100-HCHO formaldehyde gas 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 HCHO gas in indoor air, provide effective HCHO 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 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, underground garages, airport stations and other places.

2、 Introduction to formaldehyde gas detection transmitter gas

Formaldehyde is also known as formaldehyde. Colorless gas, with a special irritating odor, has a stimulating effect on human eyes, nose, etc. Easy to dissolve in water and ethanol. The concentration of aqueous solution can reach up to 55%, usually 40%. It is called formaldehyde water, commonly known as formalin, and is a colorless liquid with a pungent odor. The main harm of formaldehyde is its irritating effect on the skin and mucous membranes. When formaldehyde reaches a certain concentration indoors, people feel uncomfortable. Formaldehyde concentrations greater than 0.08mg/m ³ can cause redness, itching, discomfort or pain in the throat, hoarseness, sneezing, chest tightness, wheezing, dermatitis, etc. The newly renovated room has a high formaldehyde content, which is the main cause of many diseases.

3、 Characteristics of formaldehyde gas detection transmitter

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

2. Complete 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 considers aerodynamic principles, achieves automatic real-time sampling, and 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

HCHOContent in the air	Relative concentration hazard level
0.06-0.07mg/m³	Children may experience mild asthma
0.1mg/m³	There is an odor and discomfort
0.5mg/m³	Can irritate the eyes and cause tears
0.6mg/m³	Causing discomfort or pain in the throat. At higher concentrations, it can cause nausea, vomiting, coughing, chest tightness, wheezing, and even pulmonary edema
30mg/m³	It will immediately cause death

5、 Technical parameters of formaldehyde gas detection transmitter

Technical Parameter	BYC100-HCHO
Detect gas	formaldehyde（HCHO）
Detection Principle	electrochemistryDetection Principle
measuring range	0～2.00ppm
resolution	0.01ppm
accuracy	±0.03ppm（≤0.5ppm）± 10% reading ± 0.05ppm or ± 0.2ppm（＞0.5ppm）
Warm-up time	60S
sampling interval	3S
response time（T90）	＜3minute
service life	3Years and above
zero drift	＜±2%
Nonlinear	＜1%F.S
repeatability	±2%
Supply Voltage	DC 12～24V
signal output	4～20mA 0～10V RS485 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 formaldehyde gas detection transmitter size