multi in one Air Quality detector environmental monitoring transmitter
Multi in one Air environmental monitoring transmitter
PN:RK485
1.1 description
The product is a wall-mounted high-grade enclosure with a protection grade of IP65, rain and snow proof and good air permeability. The circuit uses imported industrial-grade microprocessor chips, high-precision temperature sensors, and environmental monitoring sensors. Ensure product reliability. This product adopts a particle sintered probe sheath, and the probe is directly connected to the shell and has a beautiful appearance. The output signal type is divided into RS485, which can realize long-distance transmission. The standard modbus
protocol supports secondary development.
1.2 Features
Accurate measurement.
Using dedicated 485 circuit, the communication is stable.
9~36V wide voltage range power supply, complete specifications and easy installation.
1.3 Main technical parameters of temperature and humidity
Specifications:
|
Category |
Measurement resolution |
Measuring range |
Measurement accuracy |
|
eCO2 |
|
400ppm~2000ppm |
±100ppm |
|
eCH2O |
1ug/m3 |
0ug~9999ug/m3 |
±25% |
|
TVOC |
1ug/m3 |
0ug~1000ug/m3 |
±25% |
|
PM2.5 |
1ug/m3 |
0ug/m3~999ug/m3 |
±10% |
|
PM10 |
1ug/m3 |
0ug/m3~1000ug/m3 |
±10% |
|
Temperature |
0.01℃ |
-40℃~100℃ |
±0.3℃(25℃) |
|
Humidity |
0.04% |
0~100% |
±3%RH(25℃) |
|
Physical interface |
ZH2.54 female seat |
||
|
Output Data |
UART or RS485 |
||
|
Operating Voltage |
DC 9-32V |
||
|
Working current |
≤200mA |
||
|
Preheat time |
2 minutes (only CO2, CH2O and TVOC need to be preheated, other parameters will be displayed when power is on) |
||
|
Working temperature |
0℃~50℃ |
||
|
Working humidity |
≤95%RH |
||
|
Protocol |
RS485 (Modbus protocol) |
||
|
Installation method |
Wall-mounted |
||
|
Service life |
5 years (in air) |
||
1.4 System framework
2.Equipment installation instructions
2.1 Inspection before equipment installation
Equipment List:
1 temperature and humidity transmitter equipment
Certificate of conformity, warranty card, calibration report, etc.
2 expansion plugs, 2 self-tapping screws
USB to 485 (optional)
485 terminal resistance (gift for multiple devices)
2.2 Installation method
Special Note:
1) There are certain specification requirements for 485 line field wiring.
For details, please refer to the data package "485 Equipment Field Wiring Manual".
2) When the device is connected to the 485 bus, ensure that the addresses of multiple devices will not be repeated.
2.3 Wiring instructions
Power and 485 signal
Wide voltage power input is 10~30V. When wiring the 485 signal wire, pay attention to the two wires A\B not reversed, and the addresses of multiple devices on the bus cannot conflict.
2.4 Specific wiring
|
|
Thread color |
Description |
|
power supply |
Brown |
Positive power supply(10~30V DC) |
|
Black |
Power negative |
|
|
Communication |
Yellow |
485-A |
|
Blue |
485-B |
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