IoT Digital Ammonia Nitrogen Sensor

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Shanghai BOQU Instrument Co., Ltd

Shanghai, China

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The BH-485-NH is a digital online ammonia nitrogen sensor and with RS485 Modbus, it measures the ammonia nitrogen concentration by an ion-selective electrode method. The ammonium ion selective electrode directly detects the ammonium ion in the water environment to determine the concentration of ammonia nitrogen. Use a pH electrode as a reference electrode for better stability. The concentration of ammonia nitrogen in the measurement process is easily interfered with by potassium ions, so potassium ion compensation is required.
The digital ammonia nitrogen sensor is an integrated sensor that is composed of an ammonium ion selective electrode, potassium ion (optional), pH electrode, and temperature electrode. These parameters can mutually correct and compensate for the measured value of ammonia nitrogen, and meanwhile achieve the measurement for multiple parameters.

                                                            Model No
                                                            BH-485-NH
                                                        
                                                            Protocol
                                                            Modbus RTU RS485
                                                        
                                                            Power Supply
                                                            DC12V
                                                        
                                                            Features
                                                            Ion selective electrode, pottasium ion compensation
                                                        
                                                            Measurement Range
                                                            NH3-N:0.1-1000 mg/L K+:0.5-1000 mg/L (Optional)  pH:5-10  Temperature:0-40℃
                                                        
                                                            Resolution
                                                            NH3-N:0.01 mg/l K+:0.01 mg/l(Optional)  Temperature:0.1℃  pH:0.01
                                                        
                                                            Measurement Accuracy
                                                            NH3-N:±5 % or or ± 0.2 mg/L K+:±5 % of the measured value or ±0.2 mg/L (Optional) Temperature:±0.1℃  pH:±0.1 pH
                                                        
                                                            Response Time
                                                            ≤2 minutes
                                                        
                                                            Minimum Detection Limit
                                                            0.2mg/L
                                                        
                                                            Outer Dimension
                                                            342mm*55mm
                                                        
                                                            Communication Protocol
                                                            MODBUS  RS485
                                                        
                                                            Storage Temperature
                                                            -15 to 50℃ (Non-frozen)
                                                        
                                                            Working Temperature
                                                            0 to 45℃(Non-frozen)
                                                        
                                                            Dimension size
                                                            55mm×340mm(Diameter*Length)
                                                        
                                                            Length of Cable
                                                            Standard 10-meter long cable, which can be extended to 100 meters
                                                        
                                                            Level of Protection
                                                            IP68/NEMA6P;

It is widely used to measure the value of ammonia nitrogen in the nitrification treatment and aeration tanks of sewage treatment plants, industrial engineering as well as river water.

Sewage water, groundwater, river water, aquaculture