Oxygen transmitter adopts imported first-line brand electrochemical oxygen sensor, which has the characteristics of rapid response and strong anti-interference ability. After our unique compensation algorithm, multi-stage standard gas calibration, but also has long life, high precision, high repeatability, high stability.
* Minimum order quantity: 1 piece
* Delivery time: within 24 hours
1. Range 0-25%VOL, other ranges can also be customized.
2, the measurement accuracy is high, within ±3%FS, repeatability can reach within 1%.
3, multiple signal output options: RS485, 4~20mA, 0~5V, 0~10V.
4, Optional high-quality OLED display, the site directly view the value, clear display at night.
5, the field power supply uses 10~30V wide voltage DC power supply, can adapt to a variety of field DC power supply.
6, o2 sensor adopts wall-mounted waterproof shell, easy installation, high protection level, can be used in harsh field environment.
Measurement parameter: oxygen
Measurement range: 0-30%vol
Communication port: RS485
Power supply: 12-24 V DC
Baud rate: 2400/4800/9600
Measurement accuracy: 3%F.s
Response time (T90, seconds) : less than 15
Power consumption: ≤0.15W (@12V DC, 25℃)
Measurement method: electrochemical sensor
1. Interface description
The power interface is wide voltage. 12-24V power input is acceptable. 485 When connecting signal cables, ensure that the A/B cables are not reversed, and that the addresses of multiple devices on the bus do not conflict.
Note: Please be careful not to connect the wrong wire sequence, because the wrong connection will cause the device to burn down.
By default, 0.6m long wire is provided. Customers can extend the wire or connect the wire in sequence according to their needs.
Note that there is no yellow line in the line sequence that may be provided in some factory batches. In this case, the gray line is equivalent to the yellow line.
2. Installation instructions
Place the sensor in an environment sheltered from wind and rain. Mount the sensor 90 degrees perpendicular to the ground wall, and keep the sensor air vents facing downwards to prevent water.
At the same time, in order to ensure the accuracy of measurement, please install the oxygen transmitter in a well-ventilated position.
The wall hanging prince shell is wall-mounted, and the installation holes are located in the middle of both sides of the equipment. The installation aperture is less than 4mm, the hole distance is 105mm, and the installation can use 3mm self-tapping screws
This product is a point-type diffusive gas detection device, as the name suggests, this product can only detect the gas concentration of the location of the probe, if you use the situation is used to detect leakage, it should be noted that the concentration of gas in the environment is affected by diffusion, with the change of the distance from the leak point concentration is inversely proportional to the change, the concentration of the leak point is the highest, the farther away the concentration is lower, Therefore, the installation of the product needs to be as close to the gas pipeline as possible.
1. Oxygen sensor use:
The oxygen sensor is suitable for warehouses, workshops, chemical plants, greenhouse farms, enclosed living places and other occasions requiring real-time monitoring of oxygen concentration.
2. Change the baud rate and device ID
After the device is disconnected, click Baud rate and address in Communication Settings to complete the relevant Settings. Please restart the device after the Settings, and then “automatically obtain the current Baud rate and address”, you can find that the address and baud rate have been changed to the one you need.
If you need to change the baud rate and address using the modbus command, see the appendix “How to Change the Baud Rate and Address Using the modbus Command”.