Xi'an Kacise Optronics Co.,Ltd.
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KCS551 Infrared CO2 Gas Sensor Module
KCS551 is a gas detection module based on the principle of NDIR infrared absorption, which is suitable for detecting the concentration of carbon dioxide in a gaseous environment at room temperature.
KCS551 adopts a patented optical cavity, imported light source and dual-channel detector to realize the reference compensation of dual optical paths in space. KCS551 has good selectivity, no oxygen dependence and long life.
KCS551 has UART, IIC digital output, analog voltage output and PWM frequency output mode, which is convenient for customers to choose the application; The KCS551 provides zero point calibration, sensitivity calibration, and clean air calibration commands, and provides customers with a manually calibrated MCDL pin to facilitate the relative zero calibration of sensor modules using outdoor free-flowing clean air. KCS551 adopts diffusion ventilation method, which has a fast diffusion speed.
KCS551 can be widely used in HVAC fresh air control, indoor air quality monitoring, agricultural and animal husbandry production process monitoring, can be installed in intelligent buildings, ventilation systems, robots, automotive and other applications. It can also be applied to other confined spaces for air quality monitoring.
| parameter | symbol | minimum | Typical values | maximum | unit | |
| Storage Temperature | Tstg | -20 | - | 80 | °C | |
| Operating Temperature | TA | -20 | 60 | °C | ||
| Operating Humidity | HA | 0 | 90 | % RH | ||
| Work Pressure | PA | 0.8 | 1.2 | atm | ||
| Supply Voltage | Vs | 11 | 12 | 30 | V | |
| Maximum Operating Current | Imax | 100 | 120 | 150 | mA | |
| T90 | Pump suction | - | 5 | second | ||
| Repeatability | zero | <±50 | ppm | |||
| 50% FS | - | <± 2% of the measured value | - | |||
| Life Span | 10 | year | ||||
Unit: mm
Diffusion
Pump-suction type
The sensor is mounted with a positioning hole spacing of 44.5mand a mounting hole diameter of 2.8 mm
The wiring socket spacing is 2.54 m m
Note: SW400PV3.01, mounting aperture: 3.2mm
The sensor should be calibrated regularly, it is recommended that it be no more than 3 months, and calibration is not required on the long-term operation side if automatic calibration is turned on
Do not use the sensor for a long time in an environment with a high density of dust
Please use the sensor within the range of the sensor's power supply
3) Sensor measurement accuracy such as SW400, 0-2000pp
| Order information sheet | |||||
| KCS551 | KCS551 CO2 concentration sensor | ||||
| xxxx | The sensor measures the range of CO2 concentration in ppm, with a minimum value of 2000 and a maximum value of 50000 ppm. | ||||
| 2000 | Range 200ppm (default). | ||||
| 10000 | Range 10000ppm | ||||
| 50000 | Range 50000ppm | ||||
| encode | The reaction speed is divided into two types: fast and slow | ||||
| S | Slow (default). | ||||
| Q | fast | ||||
| encode | Baud rate selection, support commonly used baud rate 2400 9600 19200 38400bps, 8 bits of data, 1 bit of stop bit, no check bit: Confirm special needs before ordering. | ||||
| Custom | Confirm the baud rate before ordering | ||||
| 2400 | 2400bps baud rate | ||||
| 9600 | 9600bps baud rate | ||||
| 19200 | 19200bps baud rate | ||||
| 38400 | 38400bps baud rate (default) | ||||
| encode | Serial port protocol | ||||
| Modbus-RTU | Standard Modbus-RTU protocol (default). | ||||
| Modbus-ASCII | Standard Modbus-ASCII protocol | ||||
| Modbus-Self | Modbus private protocol | ||||
| KCS551 | -2000 | -S | -38400 | -Modbus-RTU | |
URL: www.kacise.com
Tel: +86-29-17719566736
Email: sales@kacise.com
Address: Tangyan South Road, Xi'an City, Shaanxi Province, China
| Shorthand | Full name |
| VOL | 1% VOL refers to 1% of the volume of a particular gas in air. |
| PPM | 1PPM means that the volume of a specific gas in the air accounts for one millionth. |
| O2 | Oxygen molecules |
| LCD | LCD display |
| RS485 | Asynchronous serial port 485 |
| DC | direct current |
| AC | Communication |
| PVC | polyvinyl chloride |