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AY3485
AY3485
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1.1 Product overview
AY3485 transmitter is a multifunctional and high-performance transmitter. It has a beautiful and compact appearance, simple wiring and is easy to install. The transmitter has the characteristics of small size, light weight, wide range, high accuracy, fast response speed and good long-term stability. RS485 interface can be connected to the bus network with multiple modules to monitor the environment of multiple sites in real time.
1.2 Features
It is widely used in communication rooms, intelligent buildings, factory workshops, warehouses, drug stores, libraries, museums, laboratories, offices, ventilation ducts, greenhouses, warehousing and logistics, medical industry, computer room temperature monitoring and other fields that need to measure and control the temperature and humidity in the air.
1.3 Main parameters
|
DC power supply (default) |
9~36 V DC |
|
Power consumption |
≤1.2W（12V DC ，25℃ ) |
|
average current |
＜85mA |
|
Temperature measurement range |
-40℃~+80℃ |
|
Temperature measurement range |
0%RH~99%RH |
|
Temperature measurement accuracy |
±0.5℃（25℃) |
|
Humidity measurement accuracy |
±3%RH（25℃) |
|
Sensitivity attenuation value |
temperature ：<0. 1℃; humidity ：<0.5%RH/each year |
|
Storage range |
temperature ：0~60℃ ; humidity ：<99.9%RH |
|
Correspondence address |
1-250（Factory default： 1） |
|
response time |
≤120S |
|
Working pressure range |
0.9- 1. 1atm |
|
output signal |
RS485Signal |
|
Communication protocol |
Standard MOD BUS RT U protocol |
1.4 Product appearance and size
1.5 Light display description
1. The device turns on and the light comes on for one second.
2. The alarm function can be set to on or off. When the device alarm function is turned on, the light stays on.
3. When the measured environmental value exceeds the upper or lower limit, the light flashes and a sound is emitted at the same time.
2.1Equipment pre-installation inspection
Equipment list:
|
name |
quantity |
|
AY3485Transmitter |
1 unit |
|
Certificate |
1 serving |
|
Expansion plug, self-tapping |
2 each |
2.2Wiring instructions and 485 typical applications
The power interface is a wide voltage power input 9-36V. When wiring the 485 signal line, pay attention to the A\B lines can not be connected reversely, and the addresses of multiple devices on the bus cannot conflict.
Note: The factory default wire length is 0.6m. Pay attention to the wire sequence and do not connect the wire sequence in reverse. When the device is connected to the 485 bus, ensure that the addresses of multiple devices are not repeated.
2.3Installation method
The product needs to be placed in a rainproof environment, 90 degrees vertically on the ground wall, and keep the sensor vent facing downward to prevent water ingress.
Please place the product in a well-ventilated location. Do not install it in a corner, which will cause the sensor
response speed to slow down and even affect the reading accuracy.
First, you need to drill two holes with a diameter of 5mm on the wall, install the expansion plugs into the holes, and fix the bottom shell hanging plate with the self-tapping screws provided. After fixing the bottom shell hanging plate, match the bottom hanging hole of the device with the hook, and push and pull down to complete the installation.
