Beijing Lida Kexin Environmental Safety Technology Co., Ltd. was established in July 2002 with a registered capital of150,000 yuan. Mainly committed to the research and development of online monitoring instruments for pollution sources (water quality and gas), the construction of online monitoring center system for pollution sources, and the automatic online monitoring operation and maintenance services.
The company's R&D and production organization are located in the 35,000-square-meter star-rated factory building of Lida Group, with two automatic environmental protection instrument production lines. The production line has components screening and aging technology and automatic mounter and other production equipment. We provide quality products and services to our customers with strict 6s management mode, advanced production technology and strict working attitude.
The company's product research and development institutions have many years of product development experience. The products mainly include on-line automatic analyzer of UV COD water quality, on-line monitor of metal ions such as ammonia nitrogen, phosphate, nitrate nitrogen, chlorophyll a and nickel, copper and hexavalent chromium.
The company has established a strong marketing network and set up a number of offices and agencies throughout the country. At present, various products and related system integration solutions have been widely used in environmental protection, petrochemical, power plant, food, medicine, communication, computer network, instrumentation, automatic monitoring and aviation navigation and other industries.
catalogue
KS230 1 On-line Ammonia Nitrogen Water Quality Automatic Analyzer
KS 230 1-I On-line Ammonia Nitrogen Water Quality Automatic Analyzer
KS2900-Ⅱ On-line Monitoring Instrument for Oil in Water
KS2400-Ⅰ Type Hexavalent Chromium Online Monitor
KS2400-Ⅱ Nickel Ion Online Monitor
KS2900-Ⅳ On-line Monitoring Instrument for Volatile Phenol
KS2201-Ⅳ Chromaticity Online Monitor
On-line monitoring of heavy metal ions such as lead, cadmium, mercury and arsenic by KS2400 series.
KS240 1 On-line Monitoring Instrument for Total Phosphorus in Water Quality
KS2900-Ⅰ Chlorophyll A On-line Monitor
KS2900-ⅴ Cyanobacteria Online Monitor
KS2400-Ⅲ Copper Ion Online Monitor
KS260 1 Intelligent Online Monitoring and Early Warning System for Biological Toxicity of Water Quality
KS2201-Ⅱ Nitrate Nitrogen Online Monitor
KS2400-Ⅳ cyanide on-line monitor
KS220 1 UV water quality COD on-line monitor
KS2202 On-line Monitoring Instrument for Water Quality CODcr
KSZD-20 Turbidity Online Monitor
KSPH-20 online PH meter
KSJK-803 automatic monitoring (monitoring) data collection and transmission of pollution sources
Tethys400 series on-line monitor
KSMQ2200 ultrasonic open channel flowmeter
KS230 1 On-line Ammonia Nitrogen Water Quality Automatic Analyzer
I. Overview
Ammonia nitrogen in water refers to ammonia in the form of free ammonia, which mainly comes from the decomposition products of nitrogen-containing organic matter in domestic sewage under the action of microorganisms, industrial wastewater such as coking synthetic ammonia, and farmland drainage. When the content of ammonia nitrogen in water is high, it is toxic to fish and harmful to human beings to varying degrees. The determination of ammonia nitrogen content in water is helpful to evaluate the pollution and self-purification of water, so ammonia nitrogen is an important index to characterize water pollution.
Second, the basic principles
In the presence of sodium nitroprusside, ammonium reacts with salicylate and hypochlorite ions to generate blue compounds, and then the content of ammonia nitrogen in water samples is determined by photoelectric colorimetry, and the measured values are displayed on the display screen.
Third, the instrument characteristics
This instrument adopts the national standard GB/T748 1-87 "Water Quality-Determination of Ammonium by Salicylic Acid Spectrophotometry". ※.
※ Abnormal alarm and power failure will not lose data;
※ After abnormal reset and power failure, the instrument will automatically discharge the residual reactants in the instrument and automatically return to the working state.
※ With automatic range switching function, manual setting is not required.
It has anti-control function, and all functions of the instrument can be controlled remotely, which increases the convenience of operation. ※.
Sampling modes such as timing, interval and telemetry can be set. ※
Adopt control elements such as PLC imported from Panasonic to reduce environmental interference and equipment failure. ※.
The sequential injection analysis method has the advantages of simple process, low reagent consumption and high automation. ※.
Adopt multi-way valve independently developed, with strong anti-corrosion performance, long service life, safety and reliability. ※.
Fourth, the performance parameters
Measuring range: 0 ~ 300.0 mg/L (can be extended according to customer requirements).
Accuracy: indicating error ≤ 10%.
Repeatability error: ≤ 10%.
Measurement period: the minimum measurement period is 20min.
Sampling period: time interval (20 ~ 9999 min can be adjusted arbitrarily) and the whole point measurement mode.
Calibration cycle: manual and automatic modes.
Communication output: RS232 and analog (4 ~ 20) mA.
Comparison of actual water samples: error ≤ 10%.
Mean time between failures: ≥720 hours/time
KS 230 1-I On-line Ammonia Nitrogen Water Quality Automatic Analyzer
I. Overview
Ammonia nitrogen in water refers to ammonia in the form of free ammonia, which mainly comes from the decomposition products of nitrogen-containing organic matter in domestic sewage under the action of microorganisms, industrial wastewater such as coking synthetic ammonia, and farmland drainage. When the content of ammonia nitrogen in water is high, it is toxic to fish and harmful to human beings to varying degrees. The determination of ammonia nitrogen content in water is helpful to evaluate the pollution and self-purification of water, so ammonia nitrogen is an important index to characterize water pollution.
Second, the basic principles
The water sample is heated and distilled in the weakly alkaline effluent, and the released ammonia gas is absorbed by the absorption liquid. With methyl red as indicator, ammonium in the absorption solution was titrated with hydrochloric acid standard solution, and the end point was indicated by photoelectric reaction. Then according to the consumption of hydrochloric acid standard solution, the amount of ammonia nitrogen in water sample is calculated by formula, and the result is displayed by display.
Third, the instrument characteristics
This instrument adopts the national standard GB/T6468-86 "Water Quality-Determination of Ammonium-Distillation Titration". ※.
There is no restriction on the determination of water samples, and there is no need to prepare standard ammonia nitrogen solution, so the reagent is easy to store. ※.
Power failure protection design, with power failure and power-on data automatic recovery function. ※
※ After abnormal reset and power failure, the instrument will automatically discharge the residual reactants in the instrument and automatically return to the working state.
Less reagent consumption, low operating cost and no secondary pollution. ※.
※ With automatic range switching function, manual setting is not required.
Unique titration system design, equipped with metering pump flow correction system, keep titration accuracy at any time. ※.
Adopt PLC control elements imported from Panasonic FP-X, which can store up to 5000 sets of data. ※.
The sequential injection analysis method has the advantages of simple process, low reagent consumption and high automation. ※.
Adopt multi-way valve independently developed, with strong anti-corrosion performance, long service life, safety and reliability. ※.
Fourth, the performance parameters
Measuring range:1.0 ~ 50mg/L (extended range 0 ~ 300mg/L)
Accuracy: indication error ≤10%;
Repeatability error: ≤5%
Measurement period: the minimum measurement period is 30 minutes.
Sampling period: time interval (20 ~ 9999 min can be adjusted arbitrarily) and the whole point measurement mode.
Calibration cycle: manual and automatic modes.
Communication output: RS232 and analog (4 ~ 20) mA.
Comparison of actual water samples: error ≤ 10%.
Mean time between failures: ≥720 hours/time
KS2900-Ⅱ On-line Monitoring Instrument for Oil in Water
I. Product introduction
The basic principle of measurement is based on the fluorescence spectrum emitted by the detected substance.
When some substances are excited by light, they will reflect a special band with a longer wavelength, which only depends on the chemical properties of the substances. This effect is called fluorescence.
For a given substance, when the wavelength and intensity of excitation light are fixed, the thickness of liquid layer is fixed, and the concentration of solution is low, the fluorescence intensity is proportional to the concentration c of fluorescent substance.
The principle of instrumental measurement is based on the excitation of fluorescent substances in water by high energy excitation spectrum; Measure the energy of the re-emitted light after the excitation spectrum is weakened. At this time, the intensity of light is very low, and our company uses a high-sensitivity photomultiplier tube as a detector, so we can detect low-concentration substances of ppb level.
According to the measured substance, the light used for excitation can be ultraviolet (UV) light; Or visible light. Xenon lamps produce ultraviolet and visible light. By using a highly selective filter, effective ultraviolet (UV) light or visible excitation light can be generated.
Then, a photodiode detector which can compensate the variability of light source is used to control the stability of luminescence intensity.
The system adopts water temperature probe to measure and control, and realizes automatic temperature compensation.
Second, the product features
1, the instrument adopts multi-parameter design, and can be configured to measure water quality chlorophyll a, cyanobacteria, oil in water, phenol and rhodamine according to user's choice;
2. The instrument is designed in two at the same time, and at most two parameters can be measured at the same time;
3, a photomultiplier tube with high sensitivity is used as a detector, so that the measurement sensitivity is high;
4, online continuous monitoring can be realized;
5, the operation cost is low, only sulfuric acid solution is needed for cleaning, and other chemical reagents and standard solutions are not needed;
6. The ultraviolet light source is stable, and the light source variability compensation system is adopted to reduce the error and ensure the stability and accuracy of the measured value;
7, can be automatically cleaned; Can be automatically calibrated;
8. Compact structure and convenient operation.
9. No professional maintenance is required, and the sulfuric acid solution can be replaced regularly for cleaning.
In addition, our products use 32-bit industrial-grade ARM processor, which has low power consumption, stability and reliability. Adopt integrated true color touch screen. All settings and operation functions are completed through the touch screen.
Four, the main technical indicators and technical parameters
1, measuring range: (0 ~ 50) mg/L, other measuring ranges are optional.
2. Repeatability: ≤ 2%
3. Zero drift: ≤ 2% f.s/24h
4. Range drift: ≤ 5% f.s/24h
5. Power supply: (220 20) V AC, frequency: (50 0.5) Hz.
6. Output: (4 ~ 20) mA, RS232
7. Pump suction: 3m (chassis comes with sampling pump)
8. Sample flow: 100 ml/min
9. Preheating time: (3 ~ 5) minutes
10, volume: (550X390X235) mm.
1 1, weight: about 15kg.
12. Ambient temperature: 3℃ ~ 40℃;
13 environmental relative humidity: ≤ 90%;
KS220 1 UV water quality COD on-line monitor
Working principle:
The measurement principle is based on ultraviolet absorption method.
The water channel in the flow cell is irradiated by ultraviolet light of xenon lamp. Some components of ultraviolet light are absorbed through the flow cell, so it can be detected and analyzed. Then, according to Bill Lambert's law, based on the absorption of unsaturated organic molecules at UV254nm, the absorption of this light is measured. The ultraviolet light emitted by the light source is detected by filters of 254nm and 350nm respectively, and the ultraviolet light of 350nm is used as a reference wavelength, and the light intensity is detected by a photodiode, and the detected signal is sent to a microprocessor through an amplifier; The influence of turbidity is compensated by the light intensity of 350nm, and finally the measurement results are calculated and output.
Ultraviolet method effectively overcomes the shortcomings of traditional Cr method: the instrument structure is simple, and the whole process does not need reagents and heating, so it can realize continuous, rapid and stable measurement of COD without secondary pollution.
Functional features:
Color touch screen interface
The humanized color touch screen interface can not only display the measurement results intuitively, but also display the historical records, curves and the states of various components, which is simple, intuitive and easy to operate.
Xenon lamp light source
Adopt ultraviolet xenon lamp light source, long service life, up to 10 year;
rapid survey
It can be read in 3-5 minutes, which can realize continuous and rapid monitoring;
Automatic cleaning,
Using 5% dilute sulfuric acid cleaning solution, the cleaning interval can be set;
self-calibration
The instrument has automatic calibration function, and the calibration interval can be set;
Easy to operate
Single circuit board design, very convenient for debugging and maintenance;
Low operating cost
No special maintenance and reagent addition are required.
Main technical parameters:
Range: minimum 0-200mg/L chemical oxygen demand.
Up to 0-2000mg/L COD (other ranges are optional)
Repeatability: ≤ 2%
Accuracy: 3% f? S
Zero drift: ≤ 2% f? 24 hours per hour
Range drift: ≤ 2% f? 24 hours per hour
Linear error: ≤ 5% f? S
Output: 4-20mA,
Communication interface: RS232
Working rate:
Volume: 550x390x250mm (height x width x thickness)
Weight: about 15kg
Adaptability index:
Ambient temperature: 3~50℃
Relative humidity: ≤90%
Power supply voltage: AC 220 15%%
Power frequency: 50~60Hz
Sample temperature: 3~80℃, not frozen.
KS2202 On-line Monitoring Instrument for Water Quality CODcr
I. Overview
Chemical oxygen demand (also known as COD) is the amount of oxidant consumed by substances easily oxidized by oxidants in water, which reflects the pollution degree of reducing substances to water and is an important index to evaluate the relative content of organic matter in water.
Second, the basic principles
The mixed solution of water sample, potassium dichromate digestion solution, silver sulfate solution (adding silver sulfate as catalyst can oxidize linear aliphatic compounds more effectively) and concentrated sulfuric acid is heated to 165℃, and the color of organic matter in the solution will change after being oxidized by dichromate ions. The analyzer detects this color change, and converts this change into COD value and outputs it. The amount of dichromate ions consumed is equivalent to the amount of oxidizable organic matter.
Third, the instrument characteristics
This instrument adopts the national standard GB11914-89 "Determination of Chemical Oxygen Demand in Water-Dichromate Method". ※
It has network function, through which data can be controlled remotely. ※.
The sampling pipeline can be automatically cleaned to prevent algae or biofilm. ※.
※ After abnormal reset and power failure, the instrument will automatically discharge the residual reactants in the instrument and automatically return to the working state.
The unique design makes this product have lower failure rate, lower maintenance, lower reagent consumption and higher cost performance than similar products. ※.
Chloride ion has strong masking ability, and can analyze sewage below Cl-10000 mg/L. ※
Intelligent fault self-diagnosis function, alarm prompt and instrument management and maintenance are very convenient. ※
Sampling modes such as timing, interval and telemetry can be set. ※
Adopt control elements such as PLC imported from Panasonic to reduce environmental interference and equipment failure. ※.
The sequential injection analysis method has the advantages of simple process, low reagent consumption and high automation. ※.
Adopt multi-way valve independently developed, with strong anti-corrosion performance, long service life, safety and reliability. ※.
Fourth, the performance parameters
Measuring range: 30 ~ 1000mg/L (extended range 0-5000mg/L).
Accuracy: indication error ≤10%;
Repeatability error: ≤10%;
Measurement period: the minimum measurement period is 20min.
Sampling period: time interval (20 ~ 9999 min can be adjusted arbitrarily) and the whole point measurement mode.
Calibration cycle: manual and automatic modes.
Communication output: RS232 and analog (4 ~ 20) mA.
Comparison of actual water samples: error ≤ 10%.
Mean time between failures: ≥720 hours/time
KSZD-20 Turbidity Online Monitor
Turbidimeter is a kind of precision instrument and equipment, which is mainly used to measure the turbidity of liquid media. KSZD-20 turbidity water quality automatic analyzer can be widely used for water turbidity measurement in pure water purification plants, waterworks, beverage factories, brewing industries, pharmaceutical industries, epidemic prevention departments and medical departments. KSZD-20 turbidity water quality automatic analyzer is designed according to the Technical Requirements of HJ Turbidity Water Quality Automatic Analyzer /T 98 -2003 issued by the Ministry of Environment.
Working principle:
The measurement principle is based on surface scattering.
That is, a beam of light is emitted into the solution to be measured, and the beam is scattered by suspended particles in the water sample, and the receiver is placed at 90 degrees with the beam to receive the scattered light. The light energy of scattered light reaching the receiver is proportional to the turbidity of the solution. The receiver converts light energy into electrical signals. After the signal is amplified, it enters the central processor, performs operation and outputs the result.
KSZD-20 turbidity water quality automatic analyzer adopts wall-mounted structure, which consists of electromagnetic valve, sampling flow cell, light source, photoelectric converter, main control board and LCD. Water sampling is controlled by solenoid valve. When measuring, open the solenoid valve to collect water samples and enter the flow cell for measurement. The light source adopts pulsed light-emitting diode to emit light to the flow cell, and a high-sensitivity photodiode is installed in the direction perpendicular to the incident light to detect the intensity of scattered light.
Main technical parameters:
Range: 0- 100NTU
Repeatability error: ≤2%
Zero drift: ≤ 3% f.s/24h
Range drift: ≤ 3% f.s/24h
Indicating error: ≤ 5%
Voltage stability: ≤2%
Response time: < < 60 seconds
Output: 4-20mA
Communication interface: RS232
Sampling method: water sample.
Volume: 460×332×2 12 (length× width× height)
Working voltage: (220 22) V AC.
Power frequency: (50 0.5) Hz
Ambient temperature: (10-40)℃
Relative humidity: ≤85%
Main features:
Simple operation, Chinese interface
rapid survey
The measurement results are stable and reliable.
Simple maintenance and long service life.
TETHYS400 series on-line monitor;
Measurement parameters:
COD, ammonia nitrogen, sulfide, oil in water, chlorophyll a, nitrate nitrogen, phosphate, chromaticity, volatile phenol, five parameters (pH/ORP,
Dissolved oxygen, conductivity, turbidity, temperature)
Main features:
1, the main parameters are measured by ultraviolet UV method, which has high stability and low maintenance;
2. The instrument with modular design concept can measure as many as 12 parameters, including ammonia nitrogen and phosphate. This design concept makes the connection between the internal flow cell and any part of the instrument very convenient;
3. The instrument has a USB measuring port, and the measured values and diagnostic data are downloaded from the standard USB interface;
4. The new fast response and user-friendly color touch screen interface can effectively, quickly and reliably check and adjust each parameter. ;
5. Due to the adoption of a new high-performance digital signal processor (DSP), the response performance of low measurement value is improved;
6. The newly designed flow cell can bear extremely high concentration of suspended particles, such as activated sludge, without filtering, blocking or affecting the measurement results.
7. Large diameter sampling tube and optical compensation function can directly measure sewage without filtration, even sewage with activated sludge.
8. The flashing times of the ultraviolet xenon lamp can reach 109 times. If it is measured once every minute, its life will be longer than 10 years;
9. Built-in automatic cleaning system and low-cost cleaning solution (5% sulfuric acid);
10, and the measuring time of most measured parameters is within 10 second.
1 1. The design concept of single circuit board makes circuit maintenance extremely easy.
Main technical parameters:
Repeatability and accuracy of project scope
Low range of COD (254nm): 0~ 100mg/L COD (depending on sample composition) 0.05 mg/l (KMnO4) 3-5% fs.
Medium range: 0 ~ 6000mg/L COD (approximately, depending on sample composition) 3 mg/l (approximately) 3-5% fs.
High range: 0 ~ 20000mg/L COD (depending on the sample composition) 10 mg/l (about) 3-5% fs.
muddledness
Corresponding low range of COD: 0 ~150 NTU 0.1NTU 5 NTU.
Corresponding COD range: 0 ~ 450 NTU 0.3 NTU 10 NTU.
Corresponding COD high range: 0 ~ 1500 NTU 3 NTU 50 NTU.
External turbidity probe: 0-100 ntu0.01ntu2% fs.
Volatile phenol 0~ 10ppm (it can be expanded to 0 ~100ppm if necessary) 0.01ppm 3-5% fs.
Oil in water is 0~ 100ppm (it can be expanded to1000 ppm if necessary) 0.01ppm 3-5% fs.
Chlorophyll A 0-20 ppb
0-40ppb
0-200 ppb
0-400ppb
Or 0 ~ 100% fluorescence 0.5 ppb 3-5% fs.
Cyanobacteria 100-20000 cells/ml
100-200000 cells/ml
100-2000000 cells/ml
Or 0 ~ 100% fluorescent 200 cells/ml 3-5% fs.
Rhodamine 0 ~ 200 ppb 0.1ppb 3-5% fs
Nitrate nitrogen 0~ 100 mg/L NO3 -N (it can be expanded to 0 ~1000 mg/l if necessary) 0.1mg/l NO3-n 3-5% fs.
Ammonia nitrogen 0 ~10mg/l or 0 ~1000mg/l NH4-N 0.05/l NH4-N 3-5% fs.
Low sulfide range: 0 ~10 mg/l s-20.05 mg/l s-23-5% fs.
High range: 0 ~ 100 mg/l s-2 0.5 mg/l s-2 3-5% fs.
Low chromaticity range: 0 ~ 100 platinum-cobalt unit 0.5 platinum-cobalt unit 5% fs.
High range: 0 ~ 1000 platinum-cobalt unit 5 platinum-cobalt unit 5% fs.
Low range phosphate: 0-2mg/l phosphate 0.0 1 mg/l phosphate 3-5% PFOS.
High range: 0-20mg/L phosphorus phosphate 0. 1 mg/L phosphorus phosphate 3-5% fs.
High range: 0 ~ 250mg/L 0.5mg/L 3-5% fs.
pH 0 . 00 ~ 14.00 pH 0.0 1 pH 0.0 1 pH
The electrical conductivity is 0-100μ s/100 ms1%fs1%fs.
Dissolved oxygen 0 ~ 20mg/l 0.5mg/l 1% fs
Turbidity 0 ~100 ntu0.01ntu2% fs
Redox potential/mv 2v 1 mv 1 mv
The sample temperature is 0~80℃ and cannot be frozen. When measuring ammonia, the maximum ambient temperature is 50℃, which should be absolutely guaranteed.
The sample pressure is 0-5 bar; Or 0~ 1 bar (for peristaltic pump).
0~5L/min, generally 0.5 L/min.
Sample flow rate
Analog signal output 4~20mA isolated output, 12 bit resolution, maximum 500Ω.
Alarm signal output 4 relay signal outputs, with hysteresis band and delay function.
Communication RS232- Without special software, use Execel? Or MODBUS protocol is compatible with RS485-MODBUS protocol.
Display screen 320x 240 pixel color LCD with backlit color touch screen display interface (CTSDI).
Power supply 90 ~ 264V AC/50 ~ 60Hz. 12V~ 15V DC，3A .
The working environment temperature is 0~50℃
EMC+0 1 of EN55065438 EN50082-2 CE standard EN5008 1-2.
The shell is dustproof and waterproof, IP65/Nema 4X, galvanized steel.
Geometric dimension 520 x 390 x 220 mm (hxwxd); 300 x 200 x112mm (HxWxD-EL400)
Weight UV400- 14kg (ammonia external device plus14kg); EL400- 5kg (five parameters of water quality)