Shanghai Chunye Instrument Technology Co., Ltd
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    4th Floor, Building 6, Henglu Modern Industrial Park, 166 Mindong Road, Pudong New Area, Shanghai
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Dissolved oxygen (polarographic) controller
Brand: Twinno Industrial Online Dissolved Oxygen Analyzer is a water quality online monitoring and control instrument with a microprocessor. This inst
Product details


Product Features● LCD large screen LCD display
● Data recording/curve display/upload function
● Multiple automatic calibration functions
● Manual and automatic temperature compensation
● Three sets of relay control switches
● High limit, low limit, hysteresis control
● 4-20mA/RS485 multiple connection methods
● Display dissolved oxygen, temperature, and current values on the same interface
● Password protection can be set to prevent accidental operation by non staff memberstechnical specifications

measuring range 0~20.0mg/L
measuring principle Film covered type
resolution 0.01mg/L
Basic error ±1%F.S
Temperature 0~50.0℃
temperature resolution 0.1℃
temperature error ±0.3℃
temperature compensation Automatic or manual
stability Under normal pressure and constant temperature, drift<2% F.S per week
response time 25℃<60s; 35℃<30s
current output 2-channel 4-20mA
Communication output RS485 Modbus RTU
Other functions Data recording/curve display/data uploading
Relay control contacts Three groups: 5A 240VAC, 5A 28VDC or 120VAC
Optional power supply 85-265VAC, 9-36VDC, power: ≤ 3W
work environment There is no strong magnetic field interference around except for the Earth's magnetic field.
ambient temperature -10~60℃
relative humidity Not exceeding 90%
protection grade IP65
Instrument weight 0.8kg
Instrument dimensions 144×144×118mm
Installation hole size 138×138mm
Instrument installation method Pan mounted, wall mounted, pipeline type



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