Product manual
SPECIFICATION
product name： | Multi parameter atmospheric environment online detection instrument |
Model： | INSXX-S-P |
version： | V1.0 |
Creator： | He Genwen |
reviewed by： | Yuan Chao |
version | change content | Changed by | change date |
V1.0 | new-built | He Genwen | 2020-4-24 |
Instrument Usage：
Detection of PM2.5 particle concentration in indoor environment and public open areas; At the same time, it can be used to detect various other parameters of the environment, such as temperature, humidity, air pressure, VOC, CO2, O2, formaldehyde, or carbon monoxide, with very powerful functions。
Main working parameters of the comprehensive air quality detector：
Working temperature range | -10 ~ 50℃ |
Operating humidity range | 0 ~ 95%RH |
Storage temperature range | -20 ~ 60℃ |
power input | DC 12~24V |
current consumption | The average value is 350mA, and the peak value is 600mA |
OUTPUT | Modbus RS4859600bps, 1 start bit, 8 data bits, 1 stop bit, no checksum (optional wifi, ZIGBEE, TCP/IP, lorawan) |
size | 450g/133mm×133mm×39mm |
The testing capability and scope of the comprehensive air quality detector
(Customers can choose different parameter combinations according to their own usage requirements)：
Main detection parameters | detection range | check the accuracy | Testing methods, etc |
PM2.5 Particle concentration measurement | 0~500µg/m3 | ﹤ ±15µg/m3＋10%reading | laser scattering |
PM10 Particle concentration measurement | 0~500µg/m3 | ﹤ ±15µg/m3＋10%reading | laser scattering |
Formaldehyde gas | 0~2.00ppm； | ﹤ ±5% FS | electrochemistry |
CO gas | 0~500ppm； | ﹤ ±5% FS | electrochemistry |
Volatile odor detection (VOC gas) | 0~100ppm | ﹤ ±20% | semiconductor |
combustible | 0~100%lel | ﹤ ±10% FS | semiconductor |
Oxygen concentration monitoring | 0~25.0%VOL | ﹤ 2%FS | electrochemistry |
CO2 detection | 400~5000ppm | ±75ppm±5%reading | Infrared non dispersive absorption (NDIR) |
temperature measurement | -20 ~ 85℃ | ±0.5℃ | Capacitive type |
Humidity measurement | 0 ~ 100%RH | ±3%RH | Capacitive type |
atmospheric pressure | 200~1200hPa | ±0.1% | MEMS |
Scalable electrochemical principle sensors (NO/O3/NO2/NO/SO2/H2S/NH3/VOC/PH3/CL2/HCL/HCN/HF), up to 4 sensors can be selected, and the parameters depend on the selected parameters |
Installation and wiring
Do not connect the transmitter to a voltage higher than 24VDC.
Refer to the product appearance and dimension diagram in Figure 1 to install the equipment。
Install the transmitter in the location where it needs to be tested, away from the heat source or steam source, and prevent direct sunlight. When wiring a circuit, connect the wires to the wiring terminals to ensure that the wiring is correct and firm.
Product dimension diagram (unit: mm)
Wiring Instructions：
Interface Description:
From right to left, numbered 1-7, defined as follows:
1. +12V; 2. GND; 3. RS485A; 4. RS485B; 5. I1/V1; 6. I2/V2; 7. TCP/IP
Communication protocol section:
In the RTU mode using MODBUS protocol, message sending should start with a pause interval of at least 3.5 characters when using RTU mode. When the first domain (address domain) receives it, each device decodes it to determine whether it is being sent to itself. After the last transmitted character, a pause of at least 3.5 characters marks the end of the message. A new message can start after this pause. The entire message frame must be transmitted as a continuous stream. If there is a pause time of more than 3.5 characters before the completion of the message frame, the receiving device will refresh the incomplete message and assume that the next byte is the address field of a new message.
1. The hardware adopts RS485, master-slave half duplex communication, where the host calls the slave address and the slave responds for communication.
2. Data frame format: 1 start bit, 8 data bits, 1 stop bit, no checksum bit.
3. Baud rate: 9600bps.
4. The message frame includes: address domain, function code domain, data domain, and CRC16 detection domain.
5. This device supports hexadecimal 03H and 06H function codes (i.e. decimal 03 and 06 function codes). 03H is used to read the device stack, and 06H is used to modify the device stack.
The corresponding stack plan for the equipment is as follows：
Register address | Corresponding parameters | decimal point | unit | Data Description |
40001 | CO2 | 0 | ppm |
|
40002 | PM2.5 | 0 | ug/m3 |
|
40003 | O2 | 1 | VOL% |
|
40004 | VOC | 2 | ppm |
|
40005 | SMOKE | 0 | ppm |
|
40006 | temperature | 1 |
|
|
40007 | humidity | 1 |
|
|
40008 | atmospheric pressure | 1 | hPa (hPa) |
|
40009 | formaldehyde | 2 | ppm |
|
40010 | carbon monoxide | 0 | ppm |
|
40011 | illumination | 0 | lux |
|
40012 | CH4 | 0 | ppm |
|
40013 | noise | 1 | db |
|
40014 | PM10 | 0 | ug/m3 |
|
40015 |
|
|
|
|
40016 | Device Address | 0 |
| Default to 1 |
Precautions for use：
(1) The RS485 communication line requires shielded twisted pair cables, and if necessary, two 250 Ω terminals with matching resistors are required.
(2) The usage environment should be free of conductive dust, corrosive metals, and gases that damage insulation, avoiding direct sunlight and rain.
(3) Working for a long time in high humidity environments above 90% RH will cause drift.
(4) Avoid placing components in environments with salt spray, acidic or oxidizing gases (such as sulfur dioxide, hydrochloric acid, etc.).
After sales service and warranty terms:
1. Customers can enjoy a one-year warranty service from the date of purchase.
2. The warranty period is calculated from the date of invoice issuance or the date of registration and purchase of the warranty card, and for online sales, it is calculated from the date of receipt.
3. When requesting after-sales service, please contact the relevant person in charge to send it back to our company's after-sales service department.
Note: After sales service does not include the following situations：
1. Malfunctions caused by unauthorized disassembly, modification or modification of products;
2. Faults caused by falling during use and handling;
3. The labels on the body must be kept intact, and unauthorized tearing is not guaranteed;
4. Failure to comply with the usage environment of this product resulting in product malfunction;
5. This product is burnt or damaged due to wiring or power supply errors.
