Multi parameter water quality analyzer

Multi parameter water quality analyzerThe instrument was developed in accordance with the requirements of the third and fourth editions of the "Water and Wastewater Monitoring and Analysis Methods" and the "Environmental Protection Industry Standards of the People's Republic of China". This machine can measure multiple indicators such as COD, ammonia nitrogen, total phosphorus, total nitrogen, turbidity, hexavalent chromium, nickel, copper, sulfide, nitrate nitrogen, etc., and is suitable for users to expand the measurement items themselves, which can meet various needs of different users.

Multi parameter water quality analyzerFeatures

1) The independently developed Lhos Lianhua water quality detection system is equipped with a 7-inch high-definition LCD touch screen, a fully Chinese operation interface, and a user-friendly operation design, making it "extraordinary" in the field of water quality detection;

2) Multiple color comparison methods: Supports three color comparison methods: 10mm, 30mm dish color comparison, and φ 16mm tube color comparison. At the same time, tube color comparison increases by 360 ° rotating tube color comparison to ensure measurement accuracy;

3) Massive data analysis capabilities: capable of simultaneously analyzing multiple sets of samples and samples with different indicators, and analyzing the data through methods such as mean, maximum, and relative standard deviation;

4) Sample Naming: Multi functional sample management that allows for naming of samples, facilitating sample recording and data storage; The dilution factor can be inputted in advance and the result will be automatically calculated;

5) Data storage: The instrument can permanently store 260 million sets of (5G) data per month. For the convenience of searching for large amounts of data, it can be searched by project and name, and analyzed at will;

6) Permission management function: The instrument has added permission management function, and user roles can be divided into two types: administrator and operator. Different roles have different operating permissions for the instrument, making it convenient for users to manage the instrument on a daily basis and ensuring data security;

7) Wireless transmission (optional): It has wireless communication function, and data can also be exported through a data cable connected to a PC or through a USB flash drive;

8) Built in temperature and humidity detection module: directly display temperature and humidity data in the instrument, and can be directly printed on the original data to ensure the traceability of the detection results;

9) Human computer interaction: supports interactive functions such as voice broadcasting, buzzer prompts, and indicator light reminders; The instrument is equipped with built-in operation videos and instructions, and the screen display size and brightness can be adjusted

performance parameters

1、 波长参数： 420nm、510nm、535nm、560nm、610nm、669nm、700nm

2. Indication error: COD: (≤ 50mg/L) ≤± 8%, (>50mg/L) ≤± 5%;

氨氮： （≤2mg/L）±0.2mg/L，（＞2mg/L）≤±5%

Total phosphorus: ≤± 5%

3. Repeatability: ≤± 2%

4. Optical stability: ＜ ± 0.005A/20min

physical parameters

1. Instrument size: (420 × 300 × 181) mm

2. Display screen: 7-inch color LCD touch screen

3. Operation interface: Chinese operation

4. Color comparison method: 30mm color comparison dish, 10mm color comparison dish, 16mm rotating tube color comparison

5. Printer: Thermal line printer

6. Data communication port: USB-A data export interface, USB-B data transmission interface, wireless transmission module (optional)

7. Number of curves: 800 standard curves, 400 fitted curves

8. Data storage: 5G storage memory, capable of storing approximately 260 million sets of historical data

9. Testing items: 64 regular items, 16 extended items

4、 Working environment

1. Environmental temperature: (5-40) ℃

2. Environmental humidity: Relative humidity ≤ 85% RH (without condensation)

3. Rated voltage: AC220V ± 10%/50Hz

4. Rated power: 20W

Key Features

1. Water sample dilution: Input the dilution factor to automatically calculate the result;

2. Water sample naming: supports water sample labeling and naming

3. Screen brightness: Multi level adjustment

4. Human computer interaction: voice broadcast, button prompt sound, switchable sound effects or turn off

5. Work environment: can view the ambient temperature and humidity

6. Curve fitting: Each project has 5 fitting curves, and each curve can fit 3-5 points

7. Measurement calibration: supports 1-4 point calibration

8. Project Search: Index Classification Query

9. Operation permissions: divided into operator operations and administrator operations; Administrators can manage the permissions of operators

10. Login password: supports password login, password modification, and password retrieval

11. Preheating time: default 5 minutes, supports changing preheating time (5 minutes -999 minutes)

12. Historical data: Historical data retrieval: supports project and named retrieval

History export: PC connection export, USB drive export, wireless transmission

Historical data deletion: individual deletion, selective deletion, all deletion

13. Historical data analysis function:

Data analysis selection: Support users to choose data by themselves, skip selection, and select by project

Curve drawing: single curve drawing, multiple curve drawing, corresponding concentration point click to view

Data analysis: Conduct quantity, mean, maximum, standard deviation, floating deviation, average deviation, and relative standard deviation analysis on data

14. Quantitative analysis: coefficient method: directly input formula value, slope K, intercept B

Standard method: Calculate the linear second-order fitting curve based on the standard points (3-5)

Dissolver parameters

1. Product Name: Intelligent Multi Parameter Digestion Instrument

2. Product model: LH-25H

3. Dissolving temperature: Room temperature~185 ℃

4. Temperature accuracy: ± 0.5 ℃

5. Batch processing capacity: 25 samples

6. Timing range: 1 minute -59 hours and 59 minutes

7. Timing accuracy: 0.05 seconds/hour

8. Temperature indication error: ＜ ± 2 ℃

9. Uniformity of temperature field: ≤ 2 ℃

10. Operation/status prompt: voice/beep prompt, breathing light

11. Instrument volume: (380 × 250 × 210) mm

12. Instrument weight: 7.2Kg

13. Display screen: 5.6-inch full touch high-resolution color screen

14. Environmental temperature: (5-40) ℃

15. Environmental humidity: Relative humidity ≤ 85% (no condensation)

16. Rated voltage: AC220V ± 10%/50Hz

17. Rated power: 960W

Measurement project

1、COD

Measurement item: COD high range 1

Colorimetric method: 30mm colorimetric dish

Determination method: Rapid digestion spectrophotometry

Range: (20~10000) mg/L

Measurement item: COD low range 1

Colorimetric method: 30mm colorimetric dish

Determination method: Rapid digestion spectrophotometry

Range: (0~100) mg/L

Measurement item: COD high range 2

Colorimetric method: 16mm colorimetric tube

Determination method: Rapid digestion spectrophotometry

Range: (20~10000) mg/L

Measurement item: COD low range 2

Colorimetric method: 16mm colorimetric tube

Determination method: Rapid digestion spectrophotometry

Range: (0~100) mg/L

Measurement item: COD high range 3

Colorimetric method: 16mm pre made reagent

Determination method: Rapid digestion spectrophotometry

Range: (20~15000) mg/L

Measurement item: COD low range 3

Colorimetric method: 16mm pre made reagent

Determination method: Rapid digestion spectrophotometry

Range: (0~150) mg/L

Measurement item: Permanganate index

Colorimetric method: 30mm colorimetric dish

Measurement method: Oxidation spectrophotometric method

Range: (0.3~200) mg/L

2. Ammonia nitrogen

Measurement item: Ammonia nitrogen method 1-1

Colorimetric method: 10mm colorimetric dish

Measurement method: Nessler's reagent spectrophotometric method

Range: (0~160) mg/L

Measurement item: Ammonia nitrogen method 1-2

Colorimetric method: 16mm colorimetric tube

Measurement method: Nessler's reagent spectrophotometric method

Range: (0~160) mg/L

Measurement item: Ammonia nitrogen method 1-3

Colorimetric method: 16mm pre made reagent

Measurement method: Nessler's reagent spectrophotometric method

Range: (0~160) mg/L

Measurement item: Ammonia nitrogen 2 High range 1

Colorimetric method: 10mm colorimetric dish

Determination method: Salicylic acid spectrophotometric method

Range: (0.5~50) mg/L

Measurement item: Ammonia nitrogen 2 High range 2

Colorimetric method: 16mm colorimetric tube

Determination method: Salicylic acid spectrophotometric method

Range: (0.5~50) mg/L

Measurement item: Ammonia nitrogen 2 High range 3

Colorimetric method: 16mm pre made reagent

Determination method: Salicylic acid spectrophotometric method

Range: (0.5~50) mg/L

Measurement item: Ammonia nitrogen 2 Low range 1

Colorimetric method: 10mm colorimetric dish

Determination method: Salicylic acid spectrophotometric method

Range: (0.02~2.5) mg/L

Measurement item: Ammonia nitrogen 2 Low range 2

Colorimetric method: 16mm colorimetric tube

Determination method: Salicylic acid spectrophotometric method

Range: (0.02~2.5) mg/L

Measurement item: Ammonia nitrogen 2 Low range 3

Colorimetric method: 16mm pre made reagent

Determination method: Salicylic acid spectrophotometric method

Range: (0.02~2.5) mg/L

3. Total phosphorus

Measurement item: Total phosphorus low range 1

Colorimetric method: 30mm colorimetric dish

Measurement method: Ammonium molybdate spectrophotometric method

Range: (0~12) mg/L

Measurement item: Total phosphorus low range 2

Colorimetric method: 16mm colorimetric tube

Measurement method: Ammonium molybdate spectrophotometric method

Range: (0~12) mg/L

Measurement item: Total phosphorus low range 3

Colorimetric method: 16mm pre made reagent

Measurement method: Ammonium molybdate spectrophotometric method

Range: (0~2.5) mg/L

Measurement item: High range dish for total phosphorus

Colorimetric method: 10mm colorimetric dish

Determination method: Vanadium molybdenum yellow spectrophotometric method

Range: (2~100) mg/L

Measurement item: Total phosphorus high range tube

Colorimetric method: 16mm colorimetric tube

Determination method: Vanadium molybdenum yellow spectrophotometric method

Range: (2~100) mg/L

Measurement item: Prefabricated high range total phosphorus

Colorimetric method: 16mm pre made reagent

Determination method: Vanadium molybdenum yellow spectrophotometric method

Range: (2~100) mg/L

4. Total nitrogen

Measurement item: Total nitrogen

Colorimetric method: 16mm colorimetric tube

Measurement method: Chromogenic acid spectrophotometric method

Range: (0~100) mg/L

5. Organic pollutants

Measurement item: Aniline

Colorimetric method: 30mm colorimetric dish

Determination method: Naphthalene ethylenediamine hydrochloride spectrophotometric method

Range: (0.05~25) mg/L

Measurement item: Nitrobenzene

Colorimetric method: 30mm colorimetric dish

Determination method: Naphthalene ethylenediamine hydrochloride spectrophotometric method

Range: (0.05~25) mg/L

Measurement item: Volatile phenols

Colorimetric method: 30mm colorimetric dish

Measurement method: 4-amino spectrophotometric method

Range: (0.05~50) mg/L

Measurement item: Formaldehyde

Colorimetric method: 30mm colorimetric dish

Determination method: Acetylacetone spectrophotometric method

Range: (0.0004~0.012) mg/L

Measurement item: Anionic surfactant

Colorimetric method: 30mm colorimetric dish

Measurement method: spectrophotometric method

Range: (0.05~2) mg/L

Measurement item: Carbon disulfide

Colorimetric method: 10mm colorimetric dish

Determination method: Diethylamine copper acetate spectrophotometric method

Range: (0.002~1) mg/L

Measurement item: Triethylamine

Colorimetric method: 10mm colorimetric dish

Determination method: Bromophenol blue spectrophotometric method

Range: (0.015-1.46) mg/L

6. Inorganic pollutants

Measurement item: nitrate nitrogen

Colorimetric method: 16mm colorimetric tube

Measurement method: Chromogenic acid spectrophotometric method

Range: (0.05~100) mg/L

Measurement item: Nitrite nitrogen

Colorimetric method: 10mm colorimetric dish

Determination method: Naphthalene ethylenediamine hydrochloride spectrophotometric method

Range: (0.01~2) mg/L

Measurement item: Nitrite nitrogen

Colorimetric method: 16mm colorimetric tube

Determination method: Naphthalene ethylenediamine hydrochloride spectrophotometric method

Range: (0.1~1.5) mg/L

Measurement items: residual chlorine and total residual chlorine

Colorimetric method: 30mm colorimetric dish

Measurement method: DPD spectrophotometric method

Range: (0.025~1.5) mg/L

Measurement item: Phosphate

Colorimetric method: 30mm colorimetric dish

Measurement method: Ammonium molybdate spectrophotometric method

Range: (0.01~12) mg/L

Measurement item: Sulfate

Colorimetric method: 10mm colorimetric dish

Measurement method: Barium chromate spectrophotometric method

Range: (5-2000) mg/L

Measurement item: Fluoride

Colorimetric method: 30mm colorimetric dish

Measurement method: Fluorine reagent spectrophotometric method

Range: (0.02~6) mg/L

Measurement item: Sulfide

Colorimetric method: 30mm colorimetric dish

Measurement method: spectrophotometric method

Range: (0.004~0.5) mg/L

Measurement item: Cyanide compound

Colorimetric method: 30mm colorimetric dish

Determination method: Isobarbituric acid spectrophotometric method

Range: (0.01~50) mg/L

Measurement item: Boron

Colorimetric method: 10mm colorimetric dish

Determination method: Curcumin photometric method

Range: (0.2~2) mg/L

Measurement item: Iodide

Colorimetric method: 10mm colorimetric dish

Measurement method: Catalytic colorimetric method

Range: (≥ 0.001) mg/L

Measurement item: thiocyanate salt

Colorimetric method: 10mm colorimetric dish

Determination method: Isopyrazolone spectrophotometric method

Range: (0.002~0.04) mg/L

7. Metal indicators

Measurement item: Iron

Colorimetric method: 30mm colorimetric dish

Measurement method: Phenanthroline spectrophotometric method

Range: (0.01~5) mg/L

Measurement item: Hexavalent chromium

Colorimetric method: 30mm colorimetric dish

Determination method: Diphenylcarbazide spectrophotometric method

Range: (0.01~5) mg/L

Measurement item: Total chromium

Colorimetric method: 30mm colorimetric dish

Determination method: Diphenylcarbazide spectrophotometric method

Range: (0.01~5) mg/L

Measurement item: Zinc

Colorimetric method: 30mm colorimetric dish

Measurement method: Zinc reagent spectrophotometric method

Range: (0.02~50) mg/L

Measurement item: Copper

Colorimetric method: 30mm colorimetric dish

Measurement method: BCA spectrophotometric method

Range: (0.1~40) mg/L

Measurement item: Nickel

Colorimetric method: 30mm colorimetric dish

Determination method: Diketoxime spectrophotometric method

Range: (0.05~50) mg/L

Measurement item: Lead

Colorimetric method: 30mm colorimetric dish

Determination method: Xylenol Orange spectrophotometric method

Range: (0.01~5) mg/L

Measurement item: Cadmium

Colorimetric method: 30mm colorimetric dish

Determination method: Cadmium reagent spectrophotometric method

Range: (0.1~40) mg/L

Measurement item: Manganese

Colorimetric method: 30mm colorimetric dish

Measurement method: High oxidation spectrophotometric method

Range: (0.01~8) mg/L

Measurement item: Silver

Colorimetric method: 30mm colorimetric dish

Measurement method: Cadmium reagent 2B spectrophotometric method

Range: (0.05~12) mg/L

Measurement item: Antimony

Colorimetric method: 30mm colorimetric dish

Measurement method: 5-Br-PADAP photometric method

Range: (0.03-20) mg/L

Measurement item: Trace arsenic

Colorimetric method: 10mm colorimetric dish

Determination method: New silver salt spectrophotometric method

Range: (0-0.04) mg/L

Measurement item: Total arsenic

Colorimetric method: 10mm colorimetric dish

Measurement method: Ag (DDC) photometric method

Range: (0.007-0.5) mg/L

Measurement item: Beryllium

Colorimetric method: 20mm colorimetric dish

Measurement method: Chromium titanium dioxide S spectrophotometric method

Range: (0.15~1.5) mg/L

Measurement item: Cobalt

Colorimetric method: 20mm colorimetric dish

Determination method: 5-Chloro-2- (Pyridylazo) -1,3-Diaminobenzene photometric method

Range: (0.7~40) mg/L

Measurement item: Vanadium

Colorimetric method: 10mm colorimetric dish

Determination method: Tantalum reagent (BPHA) extraction spectrophotometric method

Range: (0.08~2) mg/L

Measurement item: Barium

Colorimetric method: 10mm colorimetric dish

Measurement method: Chromate indirect spectrophotometric method

Range: (0.02~0.16) mg/L

Measurement item: Uranium

Colorimetric method: 30mm colorimetric dish

Measurement method: TRPO-5-Br-PADAP photometric method

Range: (0.018~10) mg/L

Measurement item: Thorium

Colorimetric method: 30mm colorimetric dish

Measurement method: Uranium reagent III photometric method

Range: (0.06~3) mg/L

8. Sensory sense

Measurement item: chromaticity

Colorimetric method: 30mm colorimetric dish

Measurement method: Platinum cobalt color system

Range: (0~500) Hazen

Measurement item: Turbidity

Colorimetric method: 30mm colorimetric dish

Determination method: Fumalazine spectrophotometric method

Range: (0~200) NTU

Measurement item: Suspended solids

Colorimetric method: 16mm colorimetric tube

Measurement method: Direct colorimetric method

Range: (0~100) mg/L

In addition to the specific expansion projects mentioned above, the instrument also has the following functional extensions that users can freely apply according to their needs. As shown in the table below: