Beijing Lida Kexin Environmental Safety Technology Co. It is mainly devoted to the development of online monitoring instruments (water quality and gas) for pollution sources and the construction of online monitoring center system for pollution sources, as well as the operation and maintenance services for automatic online monitoring.

The company's R&D and production organizations are located in the 35,000-square-meter star plant of Leader Group, with two automated production lines of environmental protection instruments. The production line has component screening aging process and automated mounter and other production equipment. With strict 6s management style, advanced production process and rigorous work attitude, we provide customers with high quality products and services.

The company's product research and development organization has many years of experience in product development, the products are mainly UV method COD water quality online automatic analyzer, ammonia nitrogen, phosphate, nitrate nitrogen, chlorophyll a and nickel, copper, hexavalent chromium and other metal ions online monitor.

The company has established a strong marketing network, set up a number of offices and agencies in the country. At present, all kinds of 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 and navigation and other industry fields.

Catalog

KS2301 On-line Ammonia and Nitrogen Analyzer

KS2301- Ⅰ On-line Ammonia and Nitrogen Analyzer

KS2900-ⅡOil in Water Online Monitor

KS2400-ⅠHexavalent Chromium Online Monitor

KS2400-ⅡNickel Ion Online Monitor

KS2400-ⅡNickel Ion Online Monitor

KS2400-ⅡNickel Ion Online Monitor

KS2400-ⅡNickel Ion Online Monitor

KS2400-ⅡNickel Ion Online Monitor

KS2900-IV volatile phenol online monitor

KS2201-IV colorimetry online monitor

KS2400 series of lead, cadmium, mercury, arsenic and other heavy metal ions online monitor

KS2401 water quality total phosphorus online monitor

KS2900-Ⅰ chlorophyll A online monitor

KS2900-V Blue-green Algae Online Monitor

KS2400-Ⅲ Copper Ion Online Monitor

KS2601 Intelligent Water Quality Biotoxicity Online Monitoring and Early Warning System

KS2201-Ⅱ Nitrate-Nitrogen Online Monitor

KS2400-Ⅳ Cyanide Online Monitor

KS2202 Water CODcr Online Monitor

KSZD-20 Turbidity Online Monitor

KSPH-20 Online PH Meter

KSJK-803 Pollutant Source Automatic Monitoring (Monitoring) Data Acquisition Transmission

Tethys400 series online monitor

KSMQ2200 ultrasonic nullah flowmeter

KS2301 online ammonia and nitrogen water quality automatic analyzer

Overview

Ammonia and nitrogen in the water refers to the ammonia that exists in the form of free ammonia, which is mainly derived from the decomposition of nitrogen-containing organic matter in the domestic wastewater by the microbial action of the decomposition products, coking ammonia and other industrial wastewater, as well as farmland drainage. Higher levels of ammonia and nitrogen in water can be toxic to fish and harmful to human beings. Determination of ammonia nitrogen content in the water to help evaluate the water body is polluted and "self-purification" status, so ammonia nitrogen is an important indicator of water pollution.

Two, the basic principle

In the presence of sodium nitroprusside conditions, ammonium and salicylate and hypochlorite ions react to produce blue compounds, and then through the photoelectric colorimetry, the content of ammonia and nitrogen in the water samples are measured, and the measured value is shown through the display.

Three, the instrument features

※This instrument adopts the national standard GB/T7481-87 "water quality - ammonium determination of salicylic acid spectrophotometry".

※Abnormal alarm and power failure will not lose data;

※After abnormal reset and power failure, the instrument automatically discharges the residual reactants in the instrument and resumes the working state automatically.

※With automatic range switching function, no need to set manually.

※With inverse control function, all functions of the instrument can be controlled by remote central control, increasing the convenience of operation.

※Timing, interval, telemetry and other sampling methods can be set up

※Panasonic imported PLC and other control components are used to reduce environmental interference and equipment failure.

※Adopting sequential injection analysis method, simple flow path, low reagent consumption and high automation.

※Adopting self-developed multi-channel valve, strong anti-corrosion performance, long service life, safe and reliable.

Four, performance parameters

Measuring range: 0 ~ 300.0mg / L (can be extended according to customer requirements).

Accuracy: Display value error ≤ ± 10%.

Repeatability error: ≤10%.

Measuring cycle: the minimum measuring cycle is 20min.

Sampling cycle: time interval (20~9999min arbitrary adjustable) and whole point measurement mode.

Calibration cycle: manual and automatic modes

Communication output: RS232 and analog (4～20)mA

Actual water sample comparison: error ≤ ±10%.

MTBF: ≥720h/times

KS2301-I type online ammonia nitrogen water quality automatic analyzer

Overview

Ammonia nitrogen in the water refers to the ammonia in the form of free ammonia, which is mainly derived from the decomposition products of nitrogen-containing organic matter in the domestic sewage subject to microbial action, coking ammonia synthesis, and other industrial wastewater, as well as agricultural drainage. Higher levels of ammonia and nitrogen in water can be toxic to fish and harmful to human beings to varying degrees. Determination of ammonia and nitrogen content in the water to help evaluate the water body is polluted and "self-purification" status, so ammonia and nitrogen is an important indicator to characterize the pollution of water quality.

Two, the basic principle

Water samples in the slightly alkaline by the distillation of liquid heating, the release of ammonia is absorbed by the absorbing solution to methyl red as an indicator, the ammonium in the absorbing solution with hydrochloric acid titration of the standard solution, the end point of the photoelectric reaction to indicate the arrival of the endpoints, and then according to the amount of hydrochloric acid consumption of the standard solution of the formula to get the amount of ammonia nitrogen in the water samples by the monitor to show the results.

Three, instrument features

※This instrument adopts the national standard GB/T6468-86 "water quality - ammonium determination - distillation titration method".

※Measurement of water samples without restrictions, without the need to configure the standard ammonia nitrogen solution, reagent preservation is easy.

※Power failure protection design, with power failure, then power data automatic recovery function

※Abnormal reset and power failure and power, the instrument automatically discharges the instrument residual reactants, automatically restore the working state.

※Less reagent consumption, low operating cost, and no secondary pollution.

※With automatic range switching function, no need to set manually.

※Unique titration system design, with metering pump flow correction system, to maintain the accuracy of titration at any time.

※Adopting Panasonic FP-X imported PLC control components, storing data up to 5000 groups.

※Adopting sequential injection analysis method, simple flow path, low reagent consumption and high automation.

※Adopting self-developed multi-channel valve, strong anti-corrosion performance, long service life, safe and reliable.

Four, performance parameters

Measuring range: 1.0 ~ 50 mg / L (extended range 0 ~ 300mg / L)

Accuracy: display value error ≤ ± 10%;

Repeatability error: ≤ 5%

Measuring period: the minimum measuring period of 30min.

Sampling period: the time interval ( 20～9999min arbitrary adjustable) and whole point measurement mode.

Calibration cycle: manual and automatic modes

Communication output: RS232 and analog (4-20) mA

Actual water sample comparison: error ≤ ± 10%.

MTBF: ≥720h/times

KS2900-ⅡOil in water online monitor

I. Product introduction

The basic principle of measurement is based on the fluorescence spectra emitted by the detected substances.

Some substances, after being excited by light, will reflect a very special wavelength band with a longer wavelength that depends only on the chemical nature of the substance, and this effect is called fluorescence.

For a given substance, when the wavelength and intensity of the excitation light are fixed, the thickness of the liquid layer is fixed, and the concentration of the solution is low, the fluorescence intensity is proportional to the concentration C of the fluorescent substance.

The measurement principle of the instrument is based on the excitation of fluorescent substances in water with a high-energy excitation spectrum; the energy of the re-emitted light after the excitation spectrum is reduced is measured. At this time, the intensity of light is very low, our company uses high sensitivity photomultiplier tube as a detector, so it can detect the ppb level of low concentration of substances.

Depending on the substance to be measured, the light used for excitation can be either ultraviolet (UV) light or visible light. Xenon lamps produce both ultraviolet (UV) and visible light. A highly selective filter can be utilized to produce an effective excitation light that is either UV or visible.

The stability of the excitation intensity is controlled by a photodiode detector that compensates for the variability of the light source.

Using the system's water temperature temperature probe measurement and control, and the implementation of automatic temperature compensation.

Two, product features

1, the instrument adopts multi-parameter design, can be configured according to the user's choice to measure the water quality chlorophyll A, blue-green algae, oil in the water, phenol, rhodamine;

2, the instrument at the same time using two-in-one way design, you can measure up to two parameters at the same time;

3, the use of high-sensitivity photomultiplier tubes as a detector. Measurement sensitivity is high;

4. On-line continuous monitoring can be realized;

5. Low running cost, only sulfuric acid solution for cleaning is needed, no need to add other chemical reagents and standard solutions;

6. Stable UV light source and light source variability compensation system are adopted to reduce the error and ensure the stability and accuracy of the measured value;

7. Automatic cleaning; automatic calibration;

8, compact structure, easy to operate.

9, no need for professional maintenance, only need to regularly replace the sulfuric acid solution for cleaning.

Additionally, our product adopts 32-bit industrial-grade ARM processor, low power consumption, reliable stability; the use of 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, range: (0 ~ 50) mg / L, other 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) VAC , Frequency: (50 ± 0.5) Hz

6, Output: (4 ~ 20) mA, RS232

7, Pump: (0 ~ 50) mg / L, other range options. p>

7. Pump suction: 3m (the chassis itself with a sampling pump)

8. Sample flow rate: 100mL/min

9. Warm-up time: (3 to 5) minutes

10. Volume: (550X390X235)mm

11. Weight: about 15kg

12. Ambient temperature: 3℃～40℃;

13 Ambient relative humidity: ≤90%;

KS2201 UV water COD online monitor

Working Principle:

Measuring principle is based on UV absorption method.

The water path in the flow cell is irradiated by UV light from a xenon lamp. Certain components of the UV light pass through the flow cell and are absorbed, thus being detected and analyzed. The absorption of this light is then measured according to BeerLambert's law, based on the absorption of unsaturated organic molecules at UV254nm. The UV light emitted from the light source is detected through the filter at 254nm and 350nm respectively, and the UV light at 350nm is used as the reference wavelength, and the light intensity is detected by the photodiode, and the detected signals are sent to the microprocessor through the amplifier; the light intensity at 350nm is used to compensate for the effect of turbidity, and the measurement results are finally outputted after calculation.

UV method technology effectively overcomes the shortcomings of the traditional Cr method: the instrument structure is simple, the whole process does not need reagents, no heating, so it can realize the continuous, fast, stable measurement of COD, and no secondary pollution.

Functional features:

Color touch screen interface

Humanized color touch screen interface, not only can intuitively display the measurement results, but also can display the historical records, curves, and the status of each component, simple and intuitive, easy to operate;

Xenon lamp light source

Using the UV xenon lamp light source, the service life of the long service life of 10 years;

Measurement speed

The instrument is very fast, and it is very convenient to use. p>Rapid measurement

Reading in 3-5 minutes, can realize continuous and rapid monitoring;

Automatic cleaning,

Use 5% dilute sulfuric acid cleaning solution, can set the cleaning interval;

Automatic calibration

The instrument is equipped with an automatic calibration function, and the calibration interval can be set;

Easy to operate

A single The single circuit board design makes debugging and maintenance extremely convenient;

Low running cost

No need for specialized maintenance, no need to add reagents.

Main Technical Parameters:

Range: Minimum 0-200mg/l COD

Maximum 0-2000mg/l COD (other ranges are optional)

Repeatability: ≤±2%

Accuracy: ±3% F?S

Zero drift: ≤±2% F.S/24h

Range drift: ≤±2% F?S/24h

Linearity error: ≤±5%F?S

Output: 4-20mA,

Communication interface: RS232

Power: < 200W

Body volume: 550x390x250mm (HxWxH)

Weight: about 15kg

Accuracy: ±3%F? 15kg

Adaptability index:

Ambient temperature: 3~50℃

Relative humidity: ≤90%

Power supply voltage: AC 220±15%

Power supply frequency: 50~60Hz

Temperature of specimen: 3~80℃, can't be iced

KS2202 type water quality CODcr online monitor

One, Overview

Chemical Oxygen Demand (also known as COD) is the amount of oxidant consumed by the substances in water that can be easily oxidized by oxidants, is a reflection of the degree of contamination of the water body by the reducing substances, and is an important indicator of the evaluation of the relative content of organic substances in the water body.

Two, the basic principle

Water samples, potassium dichromate digestion solution, silver sulfate solution (silver sulfate as a catalyst to join can be more effective oxidation of straight-chain fatty compounds), and concentrated sulfuric acid mixture heated to 165 ℃, dichromate ions oxidation of organic matter in the solution after the color will change, the analyzer detects this color change, and this change is converted to COD value 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.

Three, instrument features

※This instrument adopts the national standard GB11914-89 "water quality chemical oxygen demand determination - dichromate method"

※With the network function, through the network, can realize the data remote control.

※Can automatically clean the sampling pipe to prevent algae or biofilm generation.

※After abnormal reset and power failure, the instrument automatically discharges the residual reactants in the instrument and restores the working state automatically.

※Unique design, the product has a lower failure rate, lower maintenance, lower reagent consumption and higher cost-effective than similar products.

※Chlorine ion masking ability is strong, can analyze sewage containing CL-10000mg/L or less

※Intelligent fault self-diagnostic function, alarm prompts, the instrument is very convenient to manage and maintain

※Can be set up with sampling methods such as timer, interval, telemetry, and so on

※Adopting Panasonic's imported PLC and other control components, reducing environment interference and equipment failure.

※Adopting sequential injection analysis method, simple flow path, low reagent consumption, and high degree of automation.

※Adopting self-developed multi-channel valve, strong anti-corrosion performance, long service life, safe and reliable.

Four, performance parameters

Measuring range: 30 ~ 1000 mg / L (extended range 0-5000mg / L).

Accuracy: display value error ≤ ± 10%;

Repeatability error: ≤ 10%;

Measurement cycle: the minimum measurement cycle of 20min.

Sampling cycle: time interval (20 ~ 9999min arbitrary adjustable) and the whole point of the measurement mode.

Calibration cycle: manual and automatic modes

Communication output: RS232 and analog (4～20)mA

Actual water sample comparison: error ≤ ±10%.

MTBF: ≥720h/times

KSZD-20 turbidity online monitor

Turbidity meter is a precision instrumentation, mainly used to measure the turbidity of the liquid medium. KSZD-20 turbidity water quality automatic analyzer can be widely used in the pure water plant, tap water plant, beverage factory, wine industry and pharmaceutical industry, epidemic prevention department, KSZD-20 type turbidity water quality automatic analyzer based on the standard for the Ministry of the Environment "turbidity water quality automatic analyzer technical requirements HJ/T 98 -2003".

Working principle:

Measuring principle is based on the surface scattering method.

That is, a beam of light is directed to the solution to be measured, the beam is scattered due to suspended particles in the water sample, the receiver is placed in the direction of 90 ° with the beam to receive the scattered light. The light energy of the scattered light reaching the receiver is proportional to the turbidity of the solution. The receiver converts the light energy into an electrical signal. The signal is amplified and sent to a central processor, which performs the calculations and outputs the results.

KSZD-20 type turbidity water quality automatic analyzer using wall-mounted structure, its internal by the solenoid valve, sampling flow pool, light source and photoelectric converter, the main control board, LCD display. Water collection by the solenoid valve control, measurement, open the solenoid valve to collect water samples into the circulation pool for measurement. The light source uses pulse light-emitting diodes, which emit light into the circulation pool, and there is a high-sensitivity photodiode installed in the perpendicular direction to the incident light, which is used to detect the intensity of the scattered light.

Main technical parameters:

Range: 0-100NTU

Repeatability error: ≤2%

Zero drift: ≤±3% F.S/24h

Range drift: ≤±3% F.S/24h

Objective error: ≤±5%

Voltage stability: ≤2%

Response time: ≤2%

Scattered light intensity is measured using a pulse light emitting diode.

Response time: <60s

Output: 4-20mA

Communication interface: RS232

Sampling method: water harvesting

Volume: 460×332×212 (L×W×H)

Operating voltage: (220±22) V AC

Power supply frequency: (50±0.5) Hz

Power supply frequency: (50±0.5) Hz

Voltage stability: ≤2%. )Hz

Ambient temperature: (10-40)°C

Relative humidity: ≤85%

Main features:

Easy to operate, Chinese language interface

Measurement is rapid

Stable and reliable measurement results

Easy to maintain, long service life

TETHYS400 Series Online monitor:

Measurement parameters:

COD, ammonia nitrogen, sulfide, oil in water, chlorophyll A, nitrate nitrogen, phosphate, chromaticity, volatile phenols, five parameters (pH/ORP,

Dissolved oxygen, conductivity, turbidity, temperature)

Main features:

1, the main parameter of the measurement of the use of UV method, with very high stability and low temperature. The main parameters are measured by UV-UV method, which is very stable and low maintenance;

2. A modular design concept can measure up to 12 parameters, including ammonia and phosphate, which makes it very convenient to connect the internal flow cell and any parts of the instrument;

3. The instrument is equipped with a USB measurement port, and it can download the measured values and diagnostic data on the standard USB interface;

4. Diagnostic data;

4. The new, fast-response, user-friendly color touch screen interface can effectively, quickly and reliably check and adjust each parameter.

5, due to the use of a new, high-performance digital signal processor (DSP), which improves the response performance of low measurement values;

6, the new design of the flow cell can withstand very high concentrations of suspended particles like activated sludge without filtration, clogging, or affecting the results of the measurement.

7, large diameter sampling tube and optical compensation function, can be measured directly without filtration and sewage, even with activated sludge sewage.

8, UV xenon lamp flashes up to 109 times, if measured once a minute, its life expectancy is more than 10 years;

9, built-in automatic cleaning system, low-cost cleaning solution (5% sulfuric acid);

10, most of the measured parameters within 10 seconds of the measurement time.

11, a single circuit board design concept makes circuit maintenance extremely easy.

Main Technical Parameters:

Item Range Repeatability Accuracy

COD(254nm) Low Range: 0~100mg/L COD (approx., depending on sample composition) ±0.05 mg/L (kMnO4) ±3--5%FS

Medium Range: 0~6000mg/L COD (approx., depending on sample composition) ±3%FS

Medium Range: 0~6000mg/L COD (approx., depending on sample composition) ±3%FS

Medium Range: 0~6000mg/L COD (approx. (approximate, depending on sample composition) ±3 mg/L (approximate) ±3--5%FS

High range: 0~20,000 mg/L COD (approximate, depending on sample composition) ±10 mg/L (approximate) ±3--5%FS

Turbidity

Corresponding to COD Low range: 0~150NTU ±0.1NTU ±5NTU

Corresponding to COD Low range: 0~150NTU ±0.1NTU ±5NTU

Corresponding to COD Low range: 0~150NTU ±0.1NTU ±0.1NTU ±5NTU<

Corresponding to COD medium range: 0~450NTU ±0.3NTU ±10NTU

Corresponding to COD high range: 0~1500NTU ±3NTU ±50NTU

External Turbidity Probe: 0-100 NTU ±0.01NTU ±2%FS

Volatile Phenols 0~10ppm (on request) Volatile Phenol 0~10ppm (Expandable to 0~100ppm on request) ±0.01ppm ±3--5%FS

Oil in Water 0~100ppm (Expandable to 1000ppm on request) ±0.01ppm ±3--5%FS

Cherophyllin A 0-20 ppb

0-40ppb

0-200 ppb

0-400 ppb

Or 0 to 100% Fluorescence ±0.5 ppb ±3--5% FS

Blue Green Algae 100-20000 cell/ml

100-200000 cell/ml

100-2000000 cell/ml

Or 0 to 100% Fluorescence ±200 cell/ml ±3--5%FS

Rhodamine 0~200ppb ±0.1ppb ±3--5%FS

Nitrate-Nitrogen 0~100 mg/L NO3 -N (Expanded to 0~1000 mg/L on request) ±0.1mg/L NO3 -N ±3--5%FS

Ammonia 0 ~10 mg/L or 0~1000 mg/L NH4 -N ±0.05 mg/L NH4 -N ±3--5%FS

Sulfide Low range: 0~10 mg/L S-2 ±0.05 mg/L S-2 ±3--5%FS

High range: 0~100 mg/L S-2 ±0.5 mg/L S-2 ±3--5%FS

Sulfuric Acid FS

Colorimetry Low range:0~100Pt-Co unit ±0.5 Pt-Co unit ±5%FS

High range:0~1000Pt-Co unit ±5 Pt-Co unit ±5%FS

Phosphate Low range:0 - 2 mg/l P-PO4 ± 0.01 mg/l P -PO4 ± 3--5%FS

Phosphate Low range:0 - 2 mg/l P -PO4 ± 3--5%FS

Phosphate 3--5%FS

High range: 0 - 20 mg/l P -PO4 ± 0.1 mg/l P -PO4 ±3--5%FS

High range: 0 to 250 mg/L ±0.5 mg/L ±3--5%FS

H 0 .00 to 14.00 pH ±0.01 pH ±0.01 pH

Conductivity 0-100μS/100mS ±1%FS ±1%FS

Dissolved Oxygen 0～20 mg/l ±0.5 mg/L ±1%FS

Turbidity 0～100 NTU ± 0.01 NTU ±2%FS

ORP/mV ± 2 V ±1 mV ±1 mV

Temperature of specimen 0~80℃, can not be freezing. The maximum ambient temperature for ammonia measurement is 50°C, which should be absolutely guaranteed.

Sample pressure 0~5 bar; or 0~1 bar (for peristaltic pump).

0~5 L/min, typically 0.5 L/min .

Sample Flow Rate

Analog Signal Output 4~20mA isolated output, 12-bit resolution , 500Ωmax .

Alarm Signal Output 4 relay signal outputs with hysteresis band and time delay function.

Communication RS232-no special software required, compatible with Execel? or MODBUS protocol RS485-MODBUS protocol.

Display 320x 240 pixel color LCD with backlight - Color Touch Screen Display Interface (CTSDI)

Power Supply 90~264V AC/50~60Hz . 12V~15V DC, 3A.

Operating Temperature 0~50℃

CE Standard EMC EN50081-2, EN50082-2, EN55011

Case Dust and Water Resistance IP65/Nema 4X, Electroplated Steel

Geometric Dimensions 520x390x220mm (HxWxD) ; 300x200x112mm (HxWxD - EL400)

Weight UV400 - 14kg (ammonia external unit plus 14kg); EL400 - 5kg (water quality five parameters)