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Company ProfileShandong Dongrun Instrument Science and Technology Co., Ltd.
By certification [File Integrity]
Contact：Mr. Bobby Jiang(Mr.)
1No need to replace solid electroder film/ electrolyte
2.No flow speed/ agitation requirement
3.More higher resolution and measurement accuracy
4.Stable measurement, no drift
5.It will not be poisoning because of sulfide.
6.The service life of the sensor can be above two years.
7.It is not affected by the thermal disturbance.
8.It is not affected by the ion ( H2S, CO2, NH3, SO4, Cl-, Cl2 , etc) cross interference
9.It is install-and-use, without calibration.
11.Simple key operation
12. 4~20mA isolation current output, optional field Bus interface
13.Optional 4 alarms, 1 cleaning relay output
14.With data record functionTechnical parameter
DO: 0 ~20 mg / l or 0~ 20ppm,
Air saturation: 0 - 120%
||± 0.01mg / l|
|Measurement Accuracy||± 0.2mg / l or ± 1% FS|
Less than 6 0 seconds(T90)
detection range 0 - 50 ºC
Resolution ± 0.1 ºC
Accuracy ± 0.5 ºC
0 ~50 ºC
- 40~80 ºC
||0 - 20m|
2 - 12pH
methanol and ethanol safety, avoid other organic solvents
Single-point or two-point calibration, using oxygen-free water
and air, respectively. Factory has calibrated, so it generally needs no calibration.
|Anti-interference||not interfered with the following substances : H2S, CO2, NH3, SO4, Cl-,CLO2, MeOH, EtOH, etc.|
Polyester embedded ruthenium metal phosphors
|Light blocking layer||Teflon|
3 years (10 seconds measurement interval)
||Φ62 × 150mm|
5VDC, provided by the transmitter.
standard 8 meters
|FDO-99 Fluorescence Method Dissolved Oxygen transmitter|
|T1||Single-channel transmitter||Measurement channel|
|MX||Multi-channel transmitter (2~16 )|
|OO||No analog output||
|PO||DO correspond to the way 4 ~ 20ma current output|
|PT||DO along with the temperature corresponding to 4 ~ 20ma current output separately|
|AX||0~4 optional alarm relay||Relay output|
Yantai dongrun Instrument Co., Ltd. was founded in 1998,specializes in manufacturing online water quality analysis equipment, material level meters, pressure gauges, flow meters, special temperature gauges and laboratory analysis equipment. Our company cooperate with the Chinese Academy of Sciences to build a water analysis laboratory, and the main products are TOC analyzer, ammonia analyzer, fluorescence oxygen analyzer, etc. We have passed the ISO9001 certification and has a professional R & D team, providing technical support to meet customer demand, particularly in the anti-corrosion, our company has a unique technology to meet different conditions of corrosion requirements.
We are the important supplier of Yantai Wanhua Group,Pepsi,Sinopec,Jereil etc