This membrane dissolved oxygen online analyzer is an intelligent online chemical analysis instrument, which is widely used in thermal power, chemical fertilizer, metallurgy, environmental protection, pharmaceutical, biochemistry, food and tap water industries. The dissolved oxygen meter mainly monitors the oxygen content/saturation/oxygen partial pressure and temperature in the solution continuously. The continuous monitoring data is connected to the recorder through the transmission output to realize remote monitoring and recording, and can also be connected to the RS485 interface to communicate with the computer through the Modbus-RTU protocol, so as to realize computer monitoring and recording of the instrument.
Enter | Measured variables | Oxygen content, saturation, oxygen partial pressure, temperature |
Measuring range | Oxygen content: (0~20) mg/L Saturation: 0~200% Oxygen partial pressure: (0~400) hPa Temperature: (-10~60)ºC | |
Output | Transmitter output | Isolated, (4-20) mA can be set to correspond to oxygen content, saturation or oxygen partial pressure measurement range, maximum load 750Q, output accuracy 0.2%FS |
Communication output | Isolated, RS485 output, Modbus-RTU communication protocol | |
Alarm output | 2-way SPDT, normally open and normally closed, contact capacity 250VAC, 3A | |
power supply | Power supply | 220VAC±10%,50Hz/60Hz |
Power consumption | Maximum power consumption 5W | |
Electrical interface | M12*1.5 cable plug*1,M16*1.5 cable plug*2 | |
Performance Parameters | Reference operating conditions | 25ºC |
Accuracy | Oxygen content/saturation/oxygen partial pressure: ±1.5%FS NTC10K: ±0.5ºC Pt1000: ±0.5ºC | |
Temperature compensation | NTC10K/Pt1000 automatic temperature compensation/manual temperature compensation | |
Protection level | IP54 |
1.Photoelectric isolation (4~20) mA transmission output, strong anti-interference ability.
2.Photoelectric isolation RS485 communication
3.Manual and automatic temperature compensation functions.
4.High and low alarm functions and hysteresis can be set.
5.Buzzer and LCD backlight can be turned on and off.








Q:What kind of product do you supply?
Our products include pressure/differential pressure transmitters, temperature transmitters, liquid level transmitters, radar level meters, dissolved oxygen analyzers and other instruments.
Q:What is your product and technology advantages?
We are a manufacturer since the year 2004, committed to producing high accuracy, long-term stability, cost-efficient pressure/level/temperature measuring instruments.
Q:Where is your factory location?
Our factory located in Zibo, Shandong province, China, which is top three instrument production area. And take an area of more than 2500 square meters.
Q:Can we visit your factory?
You are always welcome to our factory at any time at your convenience.
Q: What is the warranty of your product?
Our product warranty is 18 months from the shipping date, but we provide lifetime maintenance.
Q:How long is your delivery date?
For peak season is 4 weeks and 2 weeks for offseason, but no matter peak or off season we will try our best to meet your requirements.
Q: How is your after sales services?
Our products quality enjoy very good quality reputation and has almost no warranty caused by product itself, but we still provide 24/7 online
services for our customer for any installation, commision, running or other problems.
If you have another question, pls feel free to contact us as below