Dissolved Oxygen Analyzer

The dissolved oxygen online analyzer is one of the intelligent online chemical analysis instruments, widely used for continuous monitoring of dissolved oxygen partial pressure and temperature in solutions such as thermal power, chemical fertilizers, metallurgy, environmental protection, pharmaceuticals, biochemistry, food, and tap water. The continuous monitoring data is transmitted and recorded remotely through a transmission output connected to a recorder, It can also be connected to the RS485 interface through the MODBUS-RTU protocol, making it convenient to connect to the computer for monitoring and recording.

Using a 2.8 inch 12864 dot matrix screen

Adopting isolated transmission output, with less interference

Using isolated RS485 communication

Can perform DO/SAT/OPP measurement, temperature measurement, upper and lower limit control, transmission output, RS485 communication

Configurable temperature manual and automatic compensation functions

High and low alarm functions and hysteresis can be set

Capable of setting buzzer and LCD backlight switch functions

Optional language, currently supporting Chinese and English

Can perform zero oxygen and full scale calibration

Measurement variables: dissolved oxygen, saturation, oxygen partial pressure ■ Measurement range: 0-20mg/L, 0-200%, 0-400hPa

Resolution: 0 01mg/L, 0 1%, 1hPa

Accuracy: Soil 1.5% FS

Repeatability: soil 0 5% FS

Temperature measurement type: NTC 10K/PT1000, automatic A/manual H

Measurement range: -10-60 ° C

Resolution: 0 1C

Correction accuracy: soil 0.5 ° C

Output type: 4-20mA current transmission output

Maximum loop resistance: 750Q

Accuracy: 0 1% FS

Output type: RS485 digital signal output

Communication protocol: Standard MODBUS-RTU (customizable)

Power supply: AC220V earth 10%, 50Hz/60Hz (optional 24V earth 10%)

Alarm relay: AC250V, 3A