Shanghai Boqu Instrument Company

1. BOQU Instrument: Expert in Water Qualtiy Analyzer and Sensor.           2. Over 14+ years in research and production history. 3. Two production factories of water quality analysis instrument in Shanghai China.  4. Year capacity of water quality sensor is over 100 0000pcs    5. Found 2 production factories In Shanghai China. 6. Over 40 certificates for water quality meter. 7. Total Staff in production:168 (in 2020)     8.One Stop solution for Analyzers in Water Treatment

  Calibration of BH-485-EC Digital Conductivity Sensor, Calibration condition: 1.this conductivity sensor is directly with Standard RS485 Modbus. 2.this sensor is for K=10.0 conductivity sensor. 3.the standard buffer is 12.88ms/cm 4. calibration software is Modbus poll on computer. Calibration steps. 1.Put conductivity sensor in standard buffer:12.88ms/cm. 2.Send value 2 in Register 14(it's to choose right standard buffer). 3.Then send value 2 in Register 13 to start calibration. After several minutes, you can compare the the measured value in Register 1 with standard buffer, it will be ok when it's in 1% accuracy. or check the constant value in Register 15. Calibration finished.

How to Measure Sulfuric Acid Concentration ?The on-line continuous measurement of sulphuric acid/oleum is based on the fact that a physical property will change as the concentration changes.  Properties such as conductivity, refractive index and sound velocity are typically used to measure sulphuric acid/oleum concentrations.   The recommended methods of measurement over the whole range of sulphuric acid and oleum are given below.Electrical conductivity is a property of a fluid that can be used to determine its concentration.  The graph below shows the conductivity (micromhos) at 25ºC for several different fluids, including sulphuric acid from 0 to 100%wt.  The vertical axis ranges from 0 to 900,000 micromhos.For sulphuric acid, the conductivity varies such that for a given conductivity there could be more than one concentration.  This makes conductivity unsuitable for measurement over the full range of acid concentration (i.e. 0 to 100% H2SO4).  However, conductivity can b

CODS-3000-1  DIGITAL RS485 COD SENSOR Measuring Principle     The BOQU Digital Online COD Sensor is based on the absorption of ultraviolet light by organic matter, and uses the 254 nm spectral absorption coefficient SAC254 to reflect the important measurement parameters of soluble organic matter content in water, and can be converted into COD value under certain conditions. This method allows for continuous monitoring without the need for any reagents. Application 1)Continuous monitoring of organic matter load in the sewage treatment process 2)0n-line real-time monitoring of  influent and outflow water of the wastewater treatment 3)Application:surface water, industrial discharge water, and fishery discharge water etc

YLG-2058X Free Chlorine Analyzer YLG-2058X Free Chlorine Analyzer is a integrated cabinet type, ready to use Free Chlorine Analyzer. It is designed to monitor free chlorine (residual chlorine),pH and temperature in drinking water, industrial cooling and rinse water, wastewater ,swimming pool or other fresh water samples containing free chlorine in the range of 0.00-20,0 ppm Cl2 (High Range) or 0.01 to 5.00 Cl2 (Low Range). The YLG-2058X Free Chlorine Analyzer features a plug and play design that incorporates a flow control device, a pH sensor, a free chlorine sensor and smart water quality controller are integrated in one cabinet .the YLG-2058X Free Chlorine Analyzer is calibrated at the BOQU Instrument factory before shipment.all work that users need to do is to connect water pipe and electric wire, then the free chlorine analyzer will work well. Advantages of YLG-2058X Free Chlorine Analyzer 1.Muti-parameter: it's for pH,Residual Chlorine and temperature. 2.Touch Scree

PFG-3085 ONLINE WATER HARDNESS ION METER PFG-3085 Industrial online Ions meter is new latest micro-computer based high-end instrument. It is characterized by three languages in one,suitable for F-,Cl-,Mg2+,Ca2+,NO3-,NH+ (Fluoride ion,Chloride ion,Chloride,Potassium ion,Nitrate ion,Ammonium ion,Calcium ion,Hardness etc).the ion instrument has a user-friendly interface, easy use, long working life, data logging function.it’s widely used for power plant,drinking water,industrial waste water etc

SJG-2083C   INDUCTIVE ACID ALKALI CONCENTRATION METER SJG-2083C is inductive type acid alkali concentration meter,it's with inductive conductivity sensor,the measuring principle of the infinite sensor is a pair of wirewound alloy toroidal coils. The probe of the sensor is completely isolated from the measured process solution (non-contact). Two coils, one for transmitter and the other for receiver. When the transmitter coil is energized, the electrolyte solution conducts electricity and generates an induced current, which is directly proportional to the conductivity of the solution. The receiver coil detects the magnitude of this current and thus obtains the conductivity value of the solution. Conductivity probe alloy toroidal coil is customized in the toroidal molding with corrosion resistance. Because the probe of the sensor is completely isolated (non-contact) from the process under test (liquid), frequent maintenance and maintenance are not required.