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Summary of Contents for BOQU BH-485-NH
- Page 1 Operating Manual of Ammonia Nitrogen Sensor BH-485-NH Ammonia Nitrogen Sensor User Manual Shanghai BOQU Instrument Co.,Ltd...
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Page 2: Table Of Contents
Operating Manual of Ammonia Nitrogen Sensor Table of Contents Chapter 1 Product Overview........................1 1.1 Product Information........................1 1.2 Safety Information..........................2 1.2.1 Use of Danger Information....................3 1.2.2 Warning and Prevention Labels..................3 1.3 Pressure Limit..........................3 1.4 Temperature Limit.......................... 4 1.5 Minimum Requirement for the Depth.................... 4 Chapter 2 Introduction to the Probe......................4 2.1 Temperature Sensor........................ - Page 3 Operating Manual of Ammonia Nitrogen Sensor 4.2.4.2 Software Settings....................16 4.2.4.3 Program upgrade....................17 4.2.5 System Information......................17 Chapter 5 Calibration of Sensors......................18 5.1 Probe Settings..........................18 5.2 Basic Process of Calibration......................19 5.3 Temperature sensor calibration.....................20 5.4 pH sensor calibration........................20 5.5 Ammonia Nitrogen Sensor Calibration..................22 5.6 Potassium Ion Sensor Calibration....................
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Page 4: Chapter 1 Product Overview
Operating Manual of Ammonia Nitrogen Sensor Chapter 1 Product Overview 1.1 Product Information The ammonia nitrogen concentration was measured 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. -
Page 5: Safety Information
Operating Manual of Ammonia Nitrogen Sensor Response Time ≤2 minutes Minimum Detection 0.2mg/L Limit Communication MODBUS RS485 Protocol Storage Temperature -15 to 50℃ (Non-frozen) Working 0 to 45℃(Non-frozen) Temperature Size 55mm×340mm（Diameter*Length） Weight <1KG； Level of Protection IP68/NEMA6P； Standard 10-meter long cable, which can be extended to 100 Length of Cable meters Outer Dimension：... -
Page 6: Use Of Danger Information
Operating Manual of Ammonia Nitrogen Sensor 1.2.1 Use of Danger Information For all the hazards occurred, this manual will use signal specific term (Danger, Caution, Note) that correspond to the degree of danger. Danger Refers to a potentially or imminently dangerous state that, if not prevented, could be life-threatening or cause serious injury. -
Page 7: Temperature Limit
Operating Manual of Ammonia Nitrogen Sensor 1.4 Temperature Limit The storage temperature for the probe should be non-frozen, ranging from 0 to 45 ° C, while its working temperature should be non-frozen ranging from 0 to 40 ° C; Otherwise, exposing the probe outside of the above temperature range may result in mechanical damage and electric failure. -
Page 8: Ph Sensor
Operating Manual of Ammonia Nitrogen Sensor Temperature is a measurement of the amount of heat existing in a certain body of water, and it is considered to be a very important single parameter, for it affects the other parameters of the water quality and controls the metabolism of aquatic animals and plants. -
Page 9: Ammonia Nitrogen Sensor
Operating Manual of Ammonia Nitrogen Sensor shown in Figure 3. Important Tip1: When using a new pH electrode, the electrode should be immersed in distilled water for a period of time, usually 24 hours or more, in order to form a good hydration layer. There should be no air bubbles between the bulbs of the inner electrodes of the glass electrodes, and if there are bubbles, the bubbles can escape easily. -
Page 10: Potassium Ion Sensor
Operating Manual of Ammonia Nitrogen Sensor Technical Specification of Ammonia Nitrogen Sensor Principle Ion Selective Electrode Method Range 0.1~1000mg/L Resolution 0.01 mg/L Accuracy ±5 % of the measured value or ± 0.2 mg/L, take the greater one. Important Tip: Ammonia nitrogen must be set to no compensation if potassium ions are not purchased and installed. -
Page 11: Chapter 3 Installation
Operating Manual of Ammonia Nitrogen Sensor Chapter 3 Installation 3.1Sensor connection 3.1.1 Specific steps for instrument connection Remove the protective caps before powering the instrument, and then connect the cable core correctly according to the core definition table. Important Tip: The power supply of this product is 12VDC. It is not allowed to connect directly to 220VAC or 24VDC power supply. -
Page 12: Installation Of Sensors
Operating Manual of Ammonia Nitrogen Sensor 3.2 Installation of Sensors 3.2.1 Quick Dismantling pool side fixed installation Figure 6 Quick Dismantling pool side installation sketch map Note: The number 4 mounting tube DN32 indicates that the tube inner diameter is 32mm. -
Page 13: Classic Pool Side Fixed Installation
Operating Manual of Ammonia Nitrogen Sensor 3.2.2 Classic pool side fixed installation Figure 7 Classic pool side fixed installation sketch map Note: The number 4 mounting tube DN32 indicates that the tube inner diameter is 32mm. -
Page 14: Railing Fixed Installation
Operating Manual of Ammonia Nitrogen Sensor 3.2.3 Railing fixed installation Figure 8 Railing fixed installation sketch map Note: The number 5 mounting tube DN32 indicates that the tube inner diameter is 32mm. -
Page 15: Chapter 4 Software Installation And Use
Operating Manual of Ammonia Nitrogen Sensor Note: Avoid the following places when installing the sensor: 1. Where the sunlight directly shines and in the vicinity of the heat appliance. 2. Where the environment temperature exceeds 60 °C during operation. 3. In the vicinity of the electromagnetic source. 4. -
Page 16: Software Use
Operating Manual of Ammonia Nitrogen Sensor 4.2 Software use Connect the instrument well. Before measuring the data, run the software first. The serial port will automatically identify the connected serial port. If it is not recognized, please click the serial port to drop the small box and select the port number corresponding to USB. -
Page 17: Calibration
Operating Manual of Ammonia Nitrogen Sensor 4.2.2 Calibration Calibration of this module will be specified in the following (Chapter 5 Sensor Calibration) and will not be described in detail here. First select the operation mode in the upper right corner as calibration, then click OK, and select the parameter to be calibrated from the calibration menu to calibrate. -
Page 18: System Settings
Operating Manual of Ammonia Nitrogen Sensor 4.2.4 System Settings 4.2.4.1 Device Settings In the device settings, you can view the current device parameters, as well as set the date, time, humidity, baud rate, slave address, power-off protection, temperature, sleep cycle, battery voltage, operating voltage, motor frequency ect. -
Page 19: Software Settings
Operating Manual of Ammonia Nitrogen Sensor system time to the sensor; Setting time: When the computer time is not accurate, you can select the setting time. After manually setting the current time and clicking OK, the manually set time will be updated to the sensor. Communication settings Baud rate: 4800, 9600, 19200, 38400, 115200. -
Page 20: Program Upgrade
Operating Manual of Ammonia Nitrogen Sensor 4.2.4.3 Program upgrade Used to upgrade the program, non-professionals do not operate, the interface is shown below. 4.2.5 System Information From the system information, you can view "Controller Version", "Power Control Version", "Dissolved Oxygen ", "Turbine Version", "chlorophyll Version" Software version, "chlorophyll version", "BGA... -
Page 21: Chapter 5 Calibration Of Sensors
Operating Manual of Ammonia Nitrogen Sensor Version", "SN" and "Bluetooth", the interface is shown below. Chapter 5 Calibration of Sensors The probe is calibrated at the factory and is selectively calibrated depending on the situation on the site. There is a need to calibrate the sensor when the following situation occurs: 1. -
Page 22: Basic Process Of Calibration
Operating Manual of Ammonia Nitrogen Sensor stabilize and temperature to become normal. 3. If the ammonia nitrogen concentration is very low, the potassium ion concentration is higher, and the difference between the two is necessary to compensate potassium ions. 4. If the probe is exposed to air for more than 30 minutes, then the electrode must be repolarized. 5. -
Page 23: Temperature Sensor Calibration
Operating Manual of Ammonia Nitrogen Sensor 5.3 Temperature sensor calibration From the Calibration menu, select the “Temperature” option to enter the temperature calibration procedure as shown below. The temperature sensor is calibrated at the factory and does not need to be calibrated again. However, you can directly enter the values in the “Correction Parameters”... - Page 24 Operating Manual of Ammonia Nitrogen Sensor Before the test, remove the protective soaking bottle or rubber sleeve with the soaking liquid on the sensor, immerse the sensor in distilled water, then remove it and gently absorb the water. Be careful not to break the glass bulb and keep the sensor clean and dry.
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Page 25: Ammonia Nitrogen Sensor Calibration
Operating Manual of Ammonia Nitrogen Sensor 4. In order to ensure the accuracy of the calibration, we will provide a buffer/standard solution with pH=9.18. After the above calibration is completed, the calibration accuracy can be verified by detecting the pH of the buffer. The specific steps are: change the mode setting. For “on-line date”, place the probe in a calibration container containing the correct amount of buffer/standard solution at pH=9.18, place the glass bubble into the solution at least 1 cm, leave it for at least one minute, and then click on the confirmation on the side of the mode setting. - Page 26 Operating Manual of Ammonia Nitrogen Sensor mg / L can be selected; When the concentration range of the measured water is generally between 20 and 30, then 10 mg / L and 50 mg / L can be selected; When selecting the calibration point, please note that when the measured value is high, select a higher value of the calibration point which is close to the measured value, and the lower point should generally be no more than 10mg/L.
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Page 27: Potassium Ion Sensor Calibration
Operating Manual of Ammonia Nitrogen Sensor You can directly select the input value in the correction parameter box and click “factor” and “deviation” to calibrate the factor and deviation value. On the premise of selecting potassium ions， in the frame, you can also choose the compensation mode “no compensation”, “manual compensation”, “auto compensation”. - Page 28 Operating Manual of Ammonia Nitrogen Sensor When the concentration range of the measured water is generally between 20 and 30, then 10 mg / L and 50 mg / L can be selected; When selecting the calibration point, please note that when the measured value is high, select a higher value of the calibration point which is close to the measured value, and the lower point should generally be no more than 10mg/L.
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Page 29: Chapter 6 Maintenance
Operating Manual of Ammonia Nitrogen Sensor Chapter 6 Maintenance Danger: Only the professionals can undertake the maintenance tasks described in this chapter of the manual. To ensure continuous and reliable operation of the water quality monitoring system, we recommend a thorough and standardized maintenance process over time. In order to determine the appropriate maintenance intervals required on a site, the equipment and sensors should be periodically observed to compare the results before and after calibration as well as the response time of the sensors. -
Page 30: Temperature Sensor Maintenance
Operating Manual of Ammonia Nitrogen Sensor 6.1.1 Temperature Sensor Maintenance Use soap or alcohol to remove grease, oil or microbes and rinse the tip of the sensor with water. Do not use any object to poke the sensor, otherwise, its film will rupture. 6.1.2 pH Sensor Maintenance pH sensor requires frequent maintenance to remove contaminants from the sensing components, these contaminants can reduce the sensor response time. - Page 31 Operating Manual of Ammonia Nitrogen Sensor clean cloth or water to clean it. For ion electrodes using PVC ion exchange membranes, it is usually necessary to replace the membrane head (or depends on the use of the electrode) for half a year. Figure 9 Diagram of Ammonia Nitrogen Electrode Figure 10 Diagram of Replacing Electrolyte Procedures of Replacing Electrolyte...
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Page 32: Potassium Ion Sensor Maintenance
Operating Manual of Ammonia Nitrogen Sensor bulge (capillary action) 5. Form a raised electrolyte: It is forbidden to add electrolyte in the membrane cap. The residual water must be shaken off from the used membrane cap. 6. Dry the spilled electrolyte 7. -
Page 33: Long Term Storage
Operating Manual of Ammonia Nitrogen Sensor water can cause the sensor to drift). The users should place it in a humid saturated air environment (100% humidity). Inject approximately 1 cm of water into the bottom of the calibration container (Note: Do not immerse the sensor), then insert the sensor-equipped main unit into the calibration container and tighten to prevent evaporation of the water. -
Page 34: Chapter 7 Communication Protocol
Operating Manual of Ammonia Nitrogen Sensor Chapter 7 Communication Protocol A. The sensor probe has Modbus RS485 function, communicates in RTU mode, and the default baud rate is 9600. It can communicate with the host computer (PC/digital instrument, etc.) with RS485 communication function. - Page 35 Operating Manual of Ammonia Nitrogen Sensor 03 command /16 command Temp. source float Read/write Temp. source 1 means Manual temp. compensation value float Read/write 03 command /16 command Range -10~100 pH acid point calibration float write 16 command pH neutral point calibration float write 16 command...
- Page 36 Operating Manual of Ammonia Nitrogen Sensor Ammonia nitrogen 2236 1st point standard float read 03 command value Ammonia nitrogen 2238 1st point standard float read 03 command calibration voltage Ammonia nitrogen 2240 1st point standard float read 03 command calibration temp. Ammonia nitrogen 2242 2nd point...
- Page 37 Operating Manual of Ammonia Nitrogen Sensor Ammonia nitrogen 2256 3rd point standard float read 03 command calibration temp. Ammonia nitrogen 2258 float write 16 command 4th point calibration Ammonia nitrogen 2260 4th point standard float read 03 command value Ammonia nitrogen 2262 4th point standard float...
- Page 38 Operating Manual of Ammonia Nitrogen Sensor Potassium ion 2304 float read/write 03 command/16 command deviation Support 03, 06 command, the Potassium ion written values 1, 2, 3, 4, 5 2308 UINT16 read/write calibration points represent single point calibration to 5 point calibration Potassium ion first 2334 float...
- Page 39 Operating Manual of Ammonia Nitrogen Sensor Potassium ion 3rd 2352 float read 03 command point standard value Potassium ion 3rd 2354 point standard float read 03 command calibration voltage Potassium ion 3rd 2356 point standard float read 03 command calibration temp. Potassium ion 4th 2358 float...
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Page 40: Chapter 8 Errors And Warnings
Operating Manual of Ammonia Nitrogen Sensor Slave baud rate set range 4800、 9600、19200、38400、115200， Use the integer 1, 2, 3, 4, 5 to 0xF209 Slave baud rate UINT16 read/write represent the corresponding baud rate Support 03, 06 commands 0 means no parity; 1 means ODD odd parity, 2 means 0xF20A Parity... -
Page 41: Chapter 9 Problems And Solutions
Operating Manual of Ammonia Nitrogen Sensor successful, the measurement data will appear. If the connection fails, “Not Connected” will appear on the measurement interface. Chapter 9 Problems and Solutions Phenomenon Possibility Exclusion Method The value is constant during It might be caused by abnormal Reassemble the electrode or replace the test or fluctuates within electrode (poor contact, damage,... -
Page 42: Chapter 10 After-Sales Service
Operating Manual of Ammonia Nitrogen Sensor There might be bubbles affecting Shake the electrode in water to the measurement at the front end of remove air bubbles the electrode It might be caused by abnormal Reassemble the electrode or replace electrode (poor contact, damage, a new electrode etc.)
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