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BOQU MS-301 User Manual

Multi parameter water quality sensor
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MS-301 Multi parameter Water Quality Sensor
Web:www.boquinstrument.com
Multi parameter Water Quality Sensor
Model:MS-301 User Manual
SHANGHAI BOQU INSTRUMENT CO.,LTD
Address:No. 118 Xiuyan Road,Pudong New Area,Shanghai,zip code:201315,China
Web:www.boquinstrument.com | Email: michael@shboqu.com | Mob:86-15000087545

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  • Page 1 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Multi parameter Water Quality Sensor Model:MS-301 User Manual SHANGHAI BOQU INSTRUMENT CO.,LTD Address:No. 118 Xiuyan Road,Pudong New Area,Shanghai,zip code:201315,China Web:www.boquinstrument.com | Email: michael@shboqu.com | Mob:86-15000087545...
  • Page 2 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Introduction First of all, thanks for your trust and support by using BOQU integrated Multi parameter Water Quality Sensor. Before installation, please do read this manual carefully. For properly installing sensor and setting parameters will maximize the performance and advantages of the product, to bring you a good experience.

  • Page 3: Table Of Contents

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Table of Contents Chapter 1 Product description ........................1 1.1 Products information ........................1 1.1.1 Integrated multi parameter water quality sensor ..............1 1.1.2 Hand manipulator(Optional) ....................1 1.2 Safety Information ...........................2 1.2.1 Use of dangerous information ....................3 1.2.2 Reminder prevention label ....................
  • Page 4 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 3.1 Instrument Unboxing ........................17 3.2 Starting the instrument ........................17 3.3 Instrument connection ........................17 3.3.1 Real-time online connection ....................17 3.3.2 Portable Connection ......................19 3.4 Installation Environment ....................... 19 3.5 Installation Precautions ......................... 19 Chapter 4 Real-time online setup and operation ..................
  • Page 5 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 6.1.2 Temperature Sensor Calibration ..................31 6.1.3 pH Sensor Calibration ......................32 6.1.4 ORP Sensor Calibration ..................... 33 6.1.5 Conductivity Sensor Calibration ..................34 6.1.6 DO Dissolved Oxygen Calibration ..................36 6.1.6.1 Salinity compensation and temperature compensation ........... 37 6.1.7 Depth Sensor ........................
  • Page 6 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 7.1 Sensor maintenance ........................59 7.1.1 Temperature sensor maintenance ..................59 7.1.2 pH sensor maintenance .......................59 7.1.3 Conductivity sensor maintenance ..................60 7.1.4 Dissolved oxygen sensor maintenance ................60 7.1.5 Depth sensor maintenance ....................61 7.1.6 Standard optical sensor maintenance ................. 61 7.1.7 Ion Sensor Maintenance .....................

  • Page 7: Chapter 1 Product Description

    1.1 Products information 1.1.1 Integrated multi parameter water quality sensor The BOQU integrated multi parameter water quality sensor is a monitoring instrument for long-term field use. It can select 2-7 parameters and realize simultaneous real-time online monitoring, data reading and storage functions of temperature, depth, pH, ORP, conductance, turbidity, dissolved oxygen, chlorophyll, blue-green algae, ammonia nitrogen, Nitrate ion, fluoride ion and chloride ion.

  • Page 8: Integrated Multi Parameter Water Quality Sensor

    8 units, 8C, 3.6v lithium battery 1.1.2 Hand manipulator(Optional) Specially designed for the customers, BOQU Instrument researches and develops a hand manipulator to make integrated multi parameter water quality sensor complete the data reading, parameter setting, and calibration without the using of PC, and can be fit for being held in hand easily for any situation.

  • Page 9: Safety Information

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Figure 2 dimension diagram of hand manipulator The technology parameters of hand manipulator have been showed as below: Display 3.5-inch color display screen with adjustable backlight Data Storage Internal battery power supply, Power supply Battery Specification: 4 Section 3.7 V Lithium Battery...

  • Page 10: Use Of Dangerous Information

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 1.2.1 Use of dangerous information For various hazards, this manual will use signal specific words (Danger, Caution, Note) that correspond to the degree of danger. Danger Indicates a potentially or imminently dangerous state that, if not prevented, could be life-threatening or cause serious injury.

  • Page 11: Temperature Limit

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 1.4 Temperature limit When storing a multi-parameter Sensor, the multi-parameter Sensor stores a temperature range of 0 to 50°C, non-freezing. The multi-parameter Sensor operates over a temperature range of 0 to 45°C and is not frozen.

  • Page 12: Ph Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Temperature is a measure of the amount of heat present in a body of water, and temperature is considered to be a very important single parameter. It affects other parameters of water quality and controls the metabolism of aquatic animals and plants.

  • Page 13: Orp Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com The pH sensor measures data with stability, reliable performance and easy installation. The appearance of the pH sensor is shown in Figure 4. 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.

  • Page 14: Conductivity Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Figure 5 ORP Sensor ORP Sensor Specification Principle Glass electrode method Range -1000mV～1000 mV Resolution 0.01mV Accuracy ±0.1 mV 2.4 Conductivity Sensor 2.4.1 Conductivity Sensor Principle: Conductivity indicates the electrical conductivity of a substance. The greater the conductivity, the greater the conductivity and vice versa.

  • Page 15: Salinity

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Figure 6 Conductivity Sensor Conductivity Sensor Specification Principle Platinum electrode 1 μS/cm-2000 μS/cm (k=1) Range 100 μS/cm- 100 mS/cm (k=10.0) Resolution 0.1 μS/cm- 0.01 mS/cm (Related to Range) Accuracy ±3% 2.4.2 Salinity Salinity is a measure of the total amount of salt dissolved in a body of water. It can be automatically calculated from the conductivity and temperature detected by the multi parameter water quality sensor.

  • Page 16: Dissolved Oxygen Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com conductivity, and the output unit is ppm. Because the chemical composition of different water bodies causes different ionic properties, the conductivity cannot fully calculate the amount of TDS. TDS Sensor Specification Principle Converted by conductivity...

  • Page 17: Turbidity Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Figure 7 Dissolved Oxygen Sensor DO Sensor Specification Principle Fluorescence method Range 0-20 mg/L；0-20 ppm；0-200% Resolution 0.1%/0.01mg/L ±3% or ±0.3mg/l of Measured Value ， take the greater Accuracy value 2.6 Turbidity Sensor Principle: Turbidity is the measure of the amount of suspended solids in water.

  • Page 18: Depth Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Principle Light scattering Range 0-1000 NTU Resolution 0.1 NTU Accuracy ±5% or ±0.3NTU，take the greater value 2.7 Depth Sensor Principle: The depth sensor uses a pressure sensitive method to measure the depth of the water. One side of the sensor faces the other side of the water facing the vacuum to measure the pressure.

  • Page 19: Chlorophyll Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Range 0-61 m Resolution 2 cm Accuracy ±0.3% 2.8 Chlorophyll sensor Principle: Chlorophyll is an important biochemical molecule that is the basis of photosynthesis and uses solar energy to produce oxygen. The concentration of suspended phytoplankton can usually be calculated by collecting the amount of chlorophyll in the water sample.

  • Page 20: Blue-Green Algae Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 2.9 Blue-green Algae Sensor Principle: Blue-green algae, also known as cyanobacteria, is a widely distributed prokaryotic microorganism that is closely related to the environmental quality of water bodies. When the water body grows vigorously, it will cause discoloration and odor.

  • Page 21: Nitrate Ion Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Figure 12. Figure 12 Ammonia Nitrogen Sensor Technical Specification of Ammonia Nitrogen Sensor Principle Ion Selective Electrode Method Range 0.1~100mg/L Resolution 0.01mg/L-N ±10 % of the measured value or ± 2 mg/L, (the electrode is greatly...

  • Page 22: Fluoride Ion Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Nitrate ion sensor Specification principle ion-selective electrode method Range 0.5~100mg/L resolution 0.01~1 mg/L depending on the range ±10 % or ± 2 mg/L , (the electrode is greatly affected by Accuracy temperature, field comparison is the best field calibration, otherwise it may be out of range) 2.12 Fluoride Ion Sensor...

  • Page 23: Chloride Ion Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 2.13 Chloride Ion Sensor CL-ion selective electrode is a kind of solid membrane electrode. A high strength AgCl/Ag 2S compact solids is the main material of the membrane, which then is sealed in the plastic with resin. Sliver is adopted as the conductive electrode for the surface of solid.

  • Page 24: Instrument Unboxing

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 3.1 Instrument Unboxing Take it out of the cartons that ship the instrument and check for obvious damage. If any item is lost or damaged, please call customer service. Tip: It is normal to leave a small amount of solution in the instrument cup.
  • Page 25 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Sensor Wire Black Blue White Signal +12VDC AGND RS485 A RS485 B Connected with the host computer: multi-parameter sensor has standard MODBUS protocol, RS-485 interface, can be directly connected to the host computer (PC / data acquisition instrument, etc.), real-time online monitoring and data transmission of the instrument.

  • Page 26: Portable Connection

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 3.3.2 Portable Connection The bluetooth module is set inside the integrated multi parameter water quality sensor, which can make the analyzer be connected with hand manipulator through the bluetooth, or make the analyzer be connected with cable end by aviation joint mode.

  • Page 27: Chapter 4 Real-Time Online Setup And Operation

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 2. After power-on, observe that the running light is normally blinking. Then after 5 minutes, you need to r ead the working voltage through the platform to check whether the external power line connection is nor mal.

  • Page 28: Online Data

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 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. Select the baud rate (default is 19200) and finally click to open.

  • Page 29: History Data

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com click “Confirm”, and select the parameter to be calibrated from the calibration menu to calibrate. If you select “Automatically switch” directly, you do not need to re-select the operation when changing the menu bar. Mode, the interface is shown below.

  • Page 30: System Settings

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 4.2.4 System Settings 4.2.4.1 Device settings In settings of the system settings, you can view or set the current "Device Parameters", "Device Time Settings", "Communication Settings", "Motor Settings" etc. The interface is as shown below.
  • Page 31 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 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.

  • Page 32: Software Settings

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 4.2.4.2 Software Settings In software settings, can set "Advanced Settings" as shown in the figure 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 33: Chapter 5 Setting And Operation Of Hand Manipulator

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Chapter 5 Setting and operation of hand manipulator 5.1 Setting Press the blue switch key on the hand manipulator for some time, and then the starting up interface will be displayed just as showed below in the diagram.

  • Page 34: Sensor Connection

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 5.1.2 Sensor connection (choose one of two ways of connection between sensor connection and Bluetooth connection) 1)Press the key of direction to choose “setting”, and press the key of “Enter” to get in. And then, press the key of direction again to choose “controller set”.

  • Page 35: Time Setting

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 2)Press the key of direction to choose “controller set”, and press the key of “Enter” to get in. The process is showed by diagram as below. 3)Press the key of direction to choose “Sensor configuring”, and press the key of “Enter” to get in.

  • Page 36: Gps

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 5.1.5 GPS Choose the key of “GPS”, and press the key of “Enter” to get in. Choose the key of “enable” if it is necessary, which can be operated only in the open air. And then, the status of GPS will change when the operation is done, and also, the information of longitude and latitude on the interface will change when the location changes.

  • Page 37: Chapter 6 Calibration Of Sensors

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com history data stored at any time. Choose the key of “data output” and press the key of “Enter”. After about one minute, connect the computer when you get the information of “OK”, and make the hand manipulator connect with computer by USB data wire.

  • Page 38: Temperature Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 5. Connect the instrument to the computer correctly (the connection method is the same as the instrument connection of 3.3), start the software program, change the mode setting to calibration, and then click OK.

  • Page 39: Ph Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 6.1.3 pH Sensor Calibration From the Calibration menu, select the “pH” option to enter the pH calibration procedure, as shown in the figure below, and then you are ready to start calibration. 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.

  • Page 40: Orp Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com After the calibration is complete, rinse the sensor and calibration container with water and dry to ensure the following use. Tip: Be sure to calibrate the neutral point and then calibrate the acid point. The order cannot be reversed.

  • Page 41: Conductivity Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com immerse the sensor in distilled water, then remove it and gently absorb the water. At this point the electrode can be used (be careful not to rub the sensitive component part). The ORP sensor uses a 2-point calibration method to select two points in the “Calibration”...
  • Page 42 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Before the test and calibration, some preparation work for the conductivity sensor is required. Before the test, remove the protective soaking bottle or rubber sleeve with the soaking liquid on the sensor, immerse the sensor in distilled water, and then remove and gently absorb the moisture.

  • Page 43: Do Dissolved Oxygen Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 6.1.6 DO Dissolved Oxygen Calibration From the Calibration menu, select the Dissolved Oxygen option to enter the Dissolved Oxygen Calibration procedure as shown below, and then ready to begin calibration. The dissolved oxygen sensor is calibrated at the factory and can be air calibration if it needs to be calibrated.

  • Page 44: Salinity Compensation And Temperature Compensation

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 6.1.6.1 Salinity compensation and temperature compensation 1)Salinity compensation The water contains a large amount of salt substances, which will have a certain influence on the dissolved oxygen content, so that the output signal of the dissolved oxygen sensor drifts with the change of salinity.

  • Page 45: Optical Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Make sure the depth sensor is clean and dry before calibration. For depth sensor calibration, it is mainly for atmospheric pressure calibration, so make sure the depth sensor is in the air instead of being immersed in any container.
  • Page 46 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Before calibrating, make sure the Sensor is clean and dry and free of solid particles, debris, algae, etc.. These substances will contaminate the standard solution during calibration and cause calibration errors or incorrect measurement data. Turbidity Sensors are typically subjected to 4-point calibration or high-low-point calibration using a Forma turbidity standard.
  • Page 47 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 200 NTU, the customer can choose according to the actual situation) into the cleaned or pre-rinsed calibration container. Carefully immerse the Sensor at the end of the main unit in the solution. Make sure that the front end of the turbidity Sensor is immersed in the solution for at least 2 cm.

  • Page 48: Chlorophyll Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com “deviation” to calibrate the factor and deviation value. 6.1.8.2 Chlorophyll Sensor Calibration From the calibration menu, select the “chlorophyll” option to enter the chlorophyll calibration procedure, as shown in the figure below, and then ready to start calibration.

  • Page 49: Blue Green Algae Sensor

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com function of temperature) Table, as shown in Table 1) or experimentally measured chlorophyll values, then click on "Solution Calibration". 3. After calibration is complete, rinse the sensor and calibration container with water and dry.
  • Page 50 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com The calibration of blue-green algae generally uses a two-point calibration. The specific calibration steps are as follows: 1. For “zero calibration” we generally use distilled water for calibration. Place the clean and dry blue-green algae sensor Sensor in a clean calibration container filled with distilled water.

  • Page 51: Ion Sensors Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com stain solution of 0.3mg/L corresponds to 20,000 blue/green. 6.1.9 Ion Sensors Calibration Calibration instructions: 1) For the sensors of ammonia nitrogen, nitrate ion, fluoride ion, and chloride ion, when the standard solution difference is 10 times( such as 1mg/L and 10 mg/L ， and 10 mg/L and 100 mg/L, etc..), the voltage difference measured by the new electrode should be in the range of 57 + 3 mV.
  • Page 52 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 3. But when the water condition is stable, the three-point calibration can be performed according to the concentration range of the water body, and it can achieve a result with better accuracy. For example, when the concentration range of the measured water is generally between 0.5 and 2, then 0.02mg/L,1 mg / L and 5 mg / L can be selected;...

  • Page 53: Nitrate Ion Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration container. Carefully immerse the Sensor at the end of the main unit in the solution. Please ensure that the front end of the Ammonia Nitrogen Sensor is immersed in the solution at least 2 cm and enter the standard value.
  • Page 54 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 3. But when the water condition is stable, the three-point calibration can be performed according to the concentration range of the water body, and it can achieve a result with better accuracy. For example, when the concentration range of the measured water is generally between 0.5 and 2, then 0.02mg/L,1 mg / L and 5 mg / L can be selected;...

  • Page 55: Fluorine Ion Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration container. Carefully immerse the Sensor at the end of the main unit in the solution. Please ensure that the front end of the Nitrate ion Sensor is immersed in the solution at least 2 cm and enter the standard value.
  • Page 56 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 0.02mg/L,1 mg / L and 5 mg / L can be selected; When the concentration range of the measured water is generally between 5 and 10, then 0.02mg/L,5 mg / L and 10 mg / L can be selected;...

  • Page 57: Chloride Ion Sensor Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com dry the sensor and calibration container with water after completion. Pour the standard solution at point 3 (generally recommended 10 mg/L) into a clean, dry or pre-rinsed calibration container. Carefully immerse the Sensor at the end of the main unit in the solution. Please ensure that the front end of the Fluorine Ion Sensor is immersed in the solution at least 2 cm and enter the standard value.
  • Page 58 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com For instance, the points of 0.02mg/L,1 mg/L, 10mg/L, and 100mg/L can be used； For instance, the points of 0.02mg/L,1 mg/L, 10mg/L, and 200mg/L can be used ； For instance, the points of 0.02mg/L,1 mg/L, 10mg/L , 100mg/L, and 1000mg/L can be used；...

  • Page 59: Calibrate The Sensor By Hand Manipulator

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration container. Carefully immerse the Sensor at the end of the main unit in the solution. Please ensure that the front end of the Chloride Ion Sensor is immersed in the solution at least 2 cm and enter the standard value.

  • Page 60: Ph Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 6.2.2 pH calibration Get into the pH calibration interface, and the pH standard solution value (acidity) can be manually input at the acid point, such as 4.01. Choose the key of “OK”, and press the key of “Enter”. And then, the pH standard solution value (neutral) can be input at the neutral point, such as 6.86.

  • Page 61: Dissolved Oxygen Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 6.2.4 Dissolved oxygen calibration The new product of dissolved oxygen sensor has already been calibrated. If it is necessary to be calibrated, the way of air calibration can be adopted. 6.2.5 Depth calibration Make sure it is clear and dry for the depth sensor before calibration.

  • Page 62: Turbidity Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 6.2.6 Turbidity calibration Get into the interface of turbidity calibration, and press the key of “OK” at the site of “wiping before calibration”. Press the key of “Enter” to perform cleaning procedure for one time by scratching, and eliminate the influence of bubbles on turbidity calibration process.

  • Page 63: Blue-Green Algae Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration” in the interface, and press the key of “Enter”. Make integrated multi parameter water quality sensor immerge into Rhodamine B standard solution, and input corresponding sample value of water at the site of “sample calibration”. Press the key of “OK”, and press the key of “Enter”.

  • Page 64: Chloride Ion Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com to calibrate the fluoride ion. Choose first point/second point/third point/fourth point/fifth point fluoride ion calibration according to actual requirement to make integrated multi parameter water quality sensor immerge into standard solution, and at the same time, input corresponding standard solution value in the square frame of the hand manipulator.

  • Page 65: Ammonia Nitrogen Calibration

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration according to actual requirement to make integrated multi parameter water quality sensor immerge into standard solution, and at the same time, input corresponding standard solution value in the square frame of the hand manipulator. Then, choose the key of “calibration”, and press the key of “OK”.

  • Page 66: Sensor Maintenance

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Only professionals can undertake the maintenance tasks described in this chapter of this 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 at a site of use, the equipment and sensors should be periodically observed to compare the results before and after calibration and the corresponding time of the sensors.

  • Page 67: Conductivity Sensor Maintenance

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 7.1.3 Conductivity sensor maintenance Clean the elliptical measurement compartment (channel to the internal electrode) on the conductivity sensor with a small non-abrasive brush or cotton swab. Use soap to remove oils, oils or micro-organisms.

  • Page 68: Depth Sensor Maintenance

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 7.1.5 Depth sensor maintenance Clean the surface of sensor by water. If it is still dirty after cleaning, please wipe by wet soft cloth. It is noteworthy that the sensor cannot touch the corrosive solution in the process of maintenance, otherwise the function of the sensor will be damaged.
  • Page 69 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Figure18 Diagram of Ammonia Nitrogen Electrode Figure 19 Diagram of Replacing Electrolyte The steps of electrolyte replacement: 1. Unscrew the cap of the ion electrode，and pour out the remaining electrolyte in the electrode.

  • Page 70: Sensor Storage

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com This process can eliminate the bubbles in the head. Swing the electrodes vertical downward slightly. Make sure the head of electrode down toward in the process of swing, and do not swing too hard.

  • Page 71: Cable Maintenance

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com non-freezing and dry environment. The empty end left by the sensor on the main unit should be sealed with a port protection plug. 7.3 Cable maintenance When operating in the field, care should be taken not to place any non-waterproof cables (ie any cables other than waterproof underwater cables) near any source of water.

  • Page 72: Chapter 8 Communication Protocol

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com Figure 9 Figure 10 Chapter 8 Communication Protocol A,The sensor Sensor comes with 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 73 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com data operation temperature value float read 0~50℃ float read 1040 temperature AD value 1610 temperature factor float read/write Default:1 1510 temperature deviation float read/write Default:1 float read/write the source of temperature: 1 represents PT1000...
  • Page 74 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com value conductivity Sensor float read /write Input the standard liquid value calibration dissolved oxygen value float read 0-20 mg/L 1606 dissolved oxygen factor float read/write Default:1 dissolved oxygen 1506 float read/write Default:0 deviation...
  • Page 75 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com and it is well ready for the operation of calibration turbidity calibration enter 1 to access the float write model calibration model Enter 1 into the turbidity calibration mode of register address 906 first, so that the...
  • Page 76 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com value progress value of 1104 float read chlorophyll calibration zero point calibration of float write Enter any value chlorophyll calibration of chlorophyll float write Input the standard liquid value standard solution blue-green algae value...
  • Page 77 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration point to 322 calibration register of standard solution of blue-green algae. Set the calibration point of blue-green algae. (180 represents distinct calibration calibration point setting data, 181 represents the first float write...
  • Page 78 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com electrode 1 2202 factor of electrode 1 float read/write Default:1 2204 deviation of electrode 1 float read/write Default:0 The types of electrode are represented by floating point number of 1, 2, 3, 4, 5, and 6.
  • Page 79 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com temperature of the first 2240 point standard solution float read calibration of electrode 1 second point calibration input the standard solution 2242 float write of electrode 1 value the second point standard 2244...
  • Page 80 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com solution value of electrode 1 electric voltage of the fourth point standard 2262 float read solution calibration of electrode 1 temperature of the fourth 2264 point standard solution float read calibration of electrode 1...
  • Page 81 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com 2 represents ammonia nitrogen; 3 represents Nitrate ion; 4 represents chloride ion; And 5 represents fluoride ion. Support the command of 06. The written values of 1, 2, 3, calibration points of 2308...
  • Page 82 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com electric voltage of the second point standard 2346 float read solution calibration of electrode 2 temperature of the second 2348 point standard solution float float calibration of electrode 2 third point calibration of...
  • Page 83 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration of electrode 2 fifth point calibration of input the standard solution 2366 float write electrode 2 value the fifth point standard 2368 solution value of float read electrode 2 electric voltage of the...
  • Page 84 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com represent single point calibration to 5 point calibration. Represents the stability of the electrode voltage (used during 2415 stability float read calibration, the value on 0.9 represents the stability) first point calibration of...
  • Page 85 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com calibration of electrode 3 third point calibration of input the standard solution 2450 float write electrode 3 value the third point standard 2452 solution value of float float electrode 3 electric voltage of the...
  • Page 86 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com electric voltage of the fifth point standard 2470 float read solution calibration of electrode 3 temperature of the fifth 2472 point standard solution float read calibration of electrode 3 value of electrode 4...
  • Page 87 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com first point calibration of input the standard solution 2534 float write electrode 4 value the first point standard 2536 solution value of float read electrode 4 electric voltage of the first 2538 point standard solution...
  • Page 88 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com solution calibration of electrode 4 temperature of the third 2556 point standard solution float read calibration of electrode 4 fourth point calibration of input the standard solution 2558 float write electrode 4 value...

  • Page 89: Chapter 9 Problems And Solutions

    MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com corresponding to the corresponding address. Chapter 9 Problems and Solutions phenomenon Possible factors Method of exclusion Display A, there are bubbles in the A, rectification of the pipeline or instability pipeline alternative measurement points Conductivity B.
  • Page 90 MS-301 Multi parameter Water Quality Sensor Web:www.boquinstrument.com...

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