Online DO Controller

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Hangzhou Lohand Biological Technology Co.,Ltd

Zhejiang, China

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The online dissolved oxygen meter is an online intelligent dissolved oxygen detector produced by our company with foreign technology. It adopts imported components and dissolved oxygen film heads, based on the latest polarographic analysis technology, advanced production technology, and surface mount technology. This series of advanced analytical techniques are used to ensure the long-term stability and reliability of the instrument. It has Chinese menu operation, notebook storage measurement data, 485 communication, and other functions.

                                                            Automatic temperature compensation
                                                            0~60°C
                                                        
                                                            Relay
                                                            relay lag set freely,   the relay load 10A 220VAC
                                                        
                                                            Hole size
                                                            91 x 91mm
                                                        
                                                            Weight
                                                            0.9Kg
                                                        
                                                            Working conditions
                                                            ambient temperature of 0~60°C, relative humidity <= 90%
                                                        
                                                            Control Interface
                                                            two sets of ON / OFF relay contacts,  divided into the high point, low alarm signal, optically isolated output.
                                                        
                                                            Isolated signal output
                                                            Optocoupler isolation to protect ,  4~20mA signal output
                                                        
                                                            Output load
                                                            load <500Ω (0-10mA), load <750Ω (4-20mA)
                                                        
                                                            size
                                                            96 x 96 x 115 mm
                                                        
                                                            Working voltage
                                                            220V AC, 50/60Hz

Can be widely used in chemical fertilizer, metallurgy, environmental water treatment engineering, pharmaceutical, biochemical, food, aquaculture, tap water, and other solutions in the continuous monitoring of dissolved oxygen values.

1. The large LCD display, English menu operation.
2. Multi-parameter display at the same time: the value of dissolved oxygen, temperature, output current, alarm points, etc. Intuitive and easy to read, and alarm for range overrun.
3. Screen displays alarm status and is accompanied by a switch ON / OFF signal output
4. Automatic Temperature Compensation: Automatic 0℃ to 60℃
5. Communication function (optional): RS-485 communication interface(MODBUS protocol is partially compatible), 4 to 20 mA current output corresponding to the DO value can be set freely.
6. Notepad: can store 50 measurements, and the user can record measurement data.
7. Hysteresis amount can be set freely to avoid frequent switching relay action
8. Watchdog function: to ensure that the instrument will not crash
9. Core devices from famous foreign brands
10. Restore the factory settings. Power-down protection> 10 years