UV-visible spectrophotometer plus multi-parameter instrument and pH/dissolved oxygen/conductivity meter LH-S780

Short Description:

Wavelength range of 190nm-1100nm
With functions of uv vis spetrophotometer, multi-parameter and pH/dissolved oxygen/conductivity meter

Send email to us

Product Detail

Product Tags

Product Introduction

The LH-S780 has a wavelength range of 190nm-1100nm, and its photometric performance meets or exceeds the requirements of Level II as stipulated in the "JJG178-2007 Verification Regulation for Ultraviolet, Visible, and Near-Infrared Spectrophotometers". To cater to the market demand for photometers, it has been enhanced with functions such as photometric measurement, quantitative measurement, kinetic analysis, wavelength scanning, multi-wavelength testing, and multi-parameter testing. It is an intelligent full-band analysis instrument that can be used as both an ultraviolet-visible photometer and a multi-parameter water quality analyzer. Equipped with all-digital electrodes, it is plug-and-play and easy to use.

Functional characteristics

1. The operating system is the LHOS operating system built on the Android platform, supporting both Chinese and English languages. It is a dedicated operating system for photometers, featuring high system integration, powerful functions, simple operation, and strong compatibility;

2. Equipped with an ARM 8-core processor, it boasts industrial-grade quality, offering both low power consumption and high energy efficiency. Its powerful computing capabilities ensure smooth and seamless display and graphics processing effects;

3. The instrument adopts an integrated design of screen and main unit, with the screen built-in, eliminating the need for complex connecting cables and reducing the likelihood of malfunctions and compatibility issues. The instrument can be powered on with one button, and it is ready to use immediately without the need to open or install any other upper computer software;

4. The instrument is equipped with a built-in 10-inch high-definition touch capacitive display with a resolution of 1920×1200, ensuring that every frame of the image is crystal clear;

5. The screen brightness is adjustable, and it features a screen saver function. The screen supports angle adjustment from 0 to 90 degrees, facilitating user operation and providing a clearer viewing angle, while also effectively protecting the screen;

6. It meets the Level II requirements of the "JJG-178-2007 Verification Regulation for Ultraviolet, Visible, and Near-Infrared Spectrophotometers", satisfying the testing needs of various fields;

7. Photometric measurement allows for rapid wavelength adjustment and measurement of absorbance, transmittance, and energy values;

8, 190nm-1100nm full-band scanning, with parameters such as scanning speed, interval step length, scanning times, and measurement indicators that can be set, and supporting functions such as peak marking, trough marking, and spectral area calculation;

9. For multi-wavelength measurement, 1-8 wavelengths can be added, and for each wavelength, the wavelength, K value, absorbance value, and curve formula can be edited;

10. Quantitative analysis supports user-defined curves, allowing for the establishment of linear, polynomial (binomial, trinomial), exponential, and logarithmic fitting curves. These fitted curves can be saved for direct reuse in the future;

11. Conduct a kinetic scan with time as the coordinate axis, and select a wavelength to continuously scan the change curve between the sample and time, observing the trend of sample changes;

12. Equipped with a built-in multi-parameter water quality detection function, it supports 16 electrode method indicators, over 60 spectrophotometric detection indicators, and more than 110 directly accessible detection modes. The instrument can be used as both a photometer and a multi-parameter water quality analyzer;

13. Using a fully digital electrode with temperature compensation and independent calibration functions, the measurement values are more accurate.

14. The graph display is clear, supports free zooming, and facilitates intuitive viewing of data change trends;

15. With a storage capacity of over 150,000 to 100,000 pieces of massive data, and a memory space of 16GB, each item of functional data is independently saved. It supports filtering, management, analysis, and export, and can save files in Excel and PDF formats;

16. It supports one-click wavelength calibration, manual zero setting, and dark current calibration, allowing for quick adjustment of the instrument's optical path status, thereby ensuring the precision and stability of the instrument;

17. Tungsten/deuterium lamp optical system, with independent switches for light source settings that can be activated as needed, effectively extending the lifespan of the light source and reducing maintenance costs;

18. Socket-type tungsten lamp/deuterium lamp, with quick plug-in and plug-out for easy replacement of light source. External replacement of deuterium lamp and tungsten lamp is possible, eliminating the need for optical adjustment and simplifying equipment maintenance;

19. Equipped with intelligent IoT management capabilities and WIFI functionality, the instrument supports IoT applications, allowing for remote monitoring and control of the instrument, as well as uploading data to cloud services. It also supports integration with user databases for querying and big data applications;

20. It features a filtering and viewing function, allowing users to filter and view measurement records based on keywords related to measurement items (subcategories) and sample measurement cycles, enabling quick positioning;

21. The instrument features sample and operator naming functions, supporting the input of names in Chinese, English, numbers, and any combination thereof, facilitating users' recall and effective analysis of historical data. Saved data can be filtered by sample name;

22. The system provides real-time protection and monitoring, detecting system operation status at the hardware level. It saves records and performs automatic system recovery in case of anomalies, and supports factory reset and online update functions

23. With built-in operation assistance functions, users can view instruction manuals, quick start guides, and operation videos, facilitating their learning and use of the instrument. The content supports arbitrary scaling, and the instrument supports multitasking, allowing for instant viewing during the detection process;

24. Colorimetric system upgrade: The instrument adopts four-column automatic colorimetric analysis, enabling automatic colorimetric analysis at positions 1-4 through screen selection. It supports colorimetric analysis using cuvettes ranging from 1cm to 5cm in diameter and tubes of 16mm in diameter. Customization of cuvette specifications is available at the user's request.

25. The instrument is equipped with a built-in HDMI expansion port, supporting HDMI 2.0 expansion, facilitating teaching demonstrations and functional displays. The large-screen expansion allows the display interface to no longer be limited to the instrument's built-in 10-inch screen;

26. Equipped with a built-in thermal printer, it supports automatic and batch printing, with simple, convenient, and efficient operation;

27. The instrument is suitable for use in regulatory agencies, scientific research institutions, biopharmaceuticals, food brewing, petrochemicals, electroplating and metallurgy, paper printing, livestock breeding, municipal sewage, and other industries.

Technical Parameters

Detection parameters
Product name	Multi-parameter water quality analyzer	Instrument model	LH-S780
Wavelength range	(190-1100)nm	Spectral bandwidth	2.0nm
Device Function	Photometric measurement, quantitative measurement, kinetic analysis, wavelength scanning, multi-wavelength testing, UV total nitrogen, electrochemistry, multi-parameter testing	Wavelength repeatability	≤±0.2nm(190-340nm); ≤±0.5nm(340-1100nm)
Auto-calibration	Support	Self-check	Support
Wavelength accuracy	±0.5nm(190-340nm); ±1.0nm(340-1100nm)	Stray light	≤0.2%(220nm、360nm) ≤0.5%(420nm)
Transmittance accuracy	±0.5%	Transmittance repeatability	≤0.2%
Wavelength resolution	0.1nm	Baseline straightness	≤±0.002A
Instrument noise	≤0.1%(Transmittance 0%) ≤0.2%(transmittance100%)	Data storage	16GB(100000 pieces)
Physical parameters
Display	10-inch color touch screen	Printer	Thermal line printer
Colorimetric method	Four-position automatic cuvette + tube	Data transmission	USB
Weight	16.7Kg	Overall dimensions	(504×370×211)mm
Environmental and operational parameters
Ambient temperature	(5-40)℃	Ambient humidity	Relative humidity ≤ 85%RH (no condensation)
Rated voltage	AC220V±10%/50Hz	Rated power	80W

Test parameters

Electrochemical indicator NO.	Parameter Name	Analytical method	Measurement range	Accuracy	Response time	Calibration
1	pH	Digital Electrode Method	0-14pH	±0.02pH	≤30s	3-point calibration
2	Dissolved oxygen		0.01-20.00mg/L	±0.3mg/L	≤60s	1-point calibration
3	Conductivity		1-2000μS/cm	±1%	≤30s	1-point calibration
4	TDS		1-1000mg/L	±10%	≤30s	1-point calibration
5	Salinity		0.01-7ppt	±10%	≤30s	1-point calibration
6	ORP		-1000-+1000mV	±1mV	≤30s	1-point calibration
7	Temperature		0-100℃	(0-60)℃±0.1℃ over 60℃±0.5℃	≤30s	Calibration of points 1-3
8	Fluorine		0.2-2000mg/L	±10%	≤60s	2-point calibration
9	Chlorine		1.8-3500mg/L	±10%	≤60s	2-point calibration
10	Bromine		0.4-8000mg/L	±10%	≤60s	2-point calibration
11	Iodine		0.05-12700mg/L	±10%	≤60s	2-point calibration
12	Calcium		0.04-4000mg/L	±10%	≤60s	2-point calibration
13	Nitrate		0.6-6200mg/L	±10%	≤60s	2-point calibration
14	Ammonium		0.1-1700mg/L	±10%	≤60s	2-point calibration
15	Potassium		0.4-3900mg/L	±10%	≤60s	2-point calibration
16	Sodium		0.02-2300mg/L	±10%	≤60s	2-point calibration

Photometric parameter NO.	Parameter Name	Analytical method	Measurement range(mg/L)
1	COD	Rapid digestion spectrophotometry	0-15000
2	Permanganate index	Potassium permanganate oxidation spectrophotometric method	0.3-5
3	Ammoniacal nitrogen - Nessler's	Nessler's reagent spectrophotometric method	0-200（segmentation）
4	Ammoniacal nitrogen - salicylic acid	Salicylic acid spectrophotometric method	0.02-50
5	Total phosphorus - ammonium molybdate	Ammonium molybdate spectrophotometric method	0-12（segmentation）
6	Total phosphorus - vanadium-molybdenum yellow	Vanadium molybdenum yellow spectrophotometric method	2-100
7	Total Nitrogen	Alkaline potassium persulfate digestion UV spectrophotometry	0.1-100
8	Total Nitrogen	Color changing acid spectrophotometric method	1-200
9	Turbidity	Fulmazhen spectrophotometric method	0-400NTU
10	Chroma	Platinum cobalt color system	0-500Hazen
11	Suspended solids	Direct colorimetric method	0-1000
12	Copper	BCA photometric method	0.02-50
13	Copper	Diketoxime spectrophotometric method	0.04-80
14	Iron	Phenanthroline spectrophotometric method	0.01-50
15	Nickel	Dimethylglyoxime spectrophotometric method	0.1-40
16	Nickel	Dihydroxime spectrophotometric method	0.04-60
17	Hexavalent chromium	Diphenylcarbazide spectrophotometric method	0.01-5
18	Total chromium	Diphenylcarbazide spectrophotometric method	0.01-5
19	Total chromium	Phenylhydrazine spectrophotometric method	0.1-10
20	Lead	Xylenol Orange spectrophotometric method	0.05-50
21	Zinc	Zinc reagent spectrophotometric method	0.1-10
22	Cadmium	Dithizone spectrophotometric method	0.1-5
23	Manganese	Potassium periodate spectrophotometric method	0.01-50
24	Silver	Cadmium reagent 2B spectrophotometric method	0.01-8
25	Antimony	5-Br-PADAP spectrophotometric method	0.05-12
26	Cobalt	5-Chloro-2- (Pyridylazo) -1,3-Diaminobenzene spectrophotometric method	0.05-20
27	Nitrate nitrogen	Color changing acid spectrophotometric method	0.05-250
28	Nitrite nitrogen	Naphthalene ethylenediamine hydrochloride spectrophotometric method	0.01-6
29	Sulfide	Methylene blue spectrophotometric method	0.02-20
30	Sulfate	Barium chromate spectrophotometric method	5-2500
31	Phosphate	Ammonium molybdate spectrophotometric method	0-25
32	Phosphate	Vanadium molybdenum yellow spectrophotometric method	6-3000
33	Fluoride	Fluorine reagent spectrophotometric method	0.01-12
34	Cyanide	Barbituric acid spectrophotometric method	0.004-5
35	Residual chlorine	N. N-diethyl-1.4 phenylenediamine spectrophotometric method	0.1-15
36	Total residual chlorine	N. N-diethyl-1.4 phenylenediamine spectrophotometric method	0.1-15
37	Chlorine dioxide	DPD spectrophotometric method	0.1-50
38	Ozone	Indigo spectrophotometric method	0.01-1.25
39	Silicon dioxide	Silicon molybdenum blue spectrophotometric method	0.05-40
40	Formaldehyde	Acetylacetone spectrophotometric method	0.05-50
41	Aniline	Naphthalene ethylenediamine hydrochloride azo spectrophotometric method	0.03-20
42	Nitrobenzene	Determination of total nitro compounds - spectrophotometric method	0.05-25
43	Volatile phenol	4-aminoantipyrine spectrophotometric method	0.01-25
44	Anionic surfactant	Methylene blue spectrophotometric method	0.05-20
45	Hydrazine (hydrazine)	Dimethylaminobenzaldehyde spectrophotometric method	0.05-10
46	Methylhydrazine	Dimethylaminobenzaldehyde spectrophotometric method	0.015-25
47	Unsymmetric dimethylhydrazine	Sodium ferrocyanide amino spectrophotometric method	0.1-20
48	Total alkalinity	Methyl orange spectrophotometric method	20-400
49	Magnesium hardness	Calcium magnesium reagent spectrophotometric method	0-80
50	Calcium hardness	Calcium magnesium reagent spectrophotometric method	0-80
51	Total iron	Phenanthroline spectrophotometric method	0.2-100
52	Volatile fatty acids	Esterification spectrophotometry	20-3600
53	Chloride	Mercury thiocyanate high-speed iron spectrophotometric method	0.1-25
54	Trace arsenic	New silver salt spectrophotometric method	0~0.012
55	Total Arsenic	Ag (DDC) spectrophotometric method	0~5
56	Total mercury	Mercury dithizone photometric method	2-40
57	Boron	Curcumin photometric method	0~20
58	Iodide	Catalytic colorimetric method	≥0.01mg/L
59	Carbon disulfide	Diethylamine copper acetate spectrophotometric method	0-15
60	Triethylamine	Bromophenol blue spectrophotometric method	0-0.4
61	Thiocyanate	Isonicotinate pyrazolone spectrophotometric method	0-15
62	Beryllium	Chromium cyanide R spectrophotometric method	0-40
63	Chloral	Pyrazolinone spectrophotometric method	0-20
64	Vanadium	Tantalum reagent (BPHA) extraction spectrophotometric method	0-100
65	Barium	Chromate indirect spectrophotometric method	0-30
66	Uranium	TRPO-5-Br-PADAP photometric method	0-16
67	Thorium	Uranium reagent III photometric method	0-30