UV Visible spectrophotometer

Description

Instrument model: LH-S700

Instrument name: UV Visible Spectrophotometer

Instrument Introduction

The wavelength range of LH-S700 is 190nm-1100nm, and its photometric performance meets the requirements of Level II in accordance with the "JJG178-2007 Verification Regulations for Ultraviolet, Visible, and Near Infrared Spectrophotometers". In order to meet the market demand for photometers, it has expanded its functions to include photometric measurement, quantitative measurement, dynamic analysis, wavelength scanning, multi wavelength testing, and multi parameter testing. It is an intelligent full band analysis instrument that can be used as both a UV visible spectrophotometer and a multi parameter Water Quality analyzer.

Features

1. Comply with the Level II requirements of the "JJG-178-2007 Verification Regulations for Ultraviolet, Visible, and Near Infrared Spectrophotometers" and meet the detection needs of various fields;

2.190nm-1100nm full band scanning, with adjustable parameters such as scanning speed, interval step size, scanning frequency, and measurement indicators. It supports functions such as peak marking, valley marking, and spectral area calculation;

3. Multi wavelength measurement can add 1-8 wavelengths, each of which can be edited for wavelength, K value, calculated absorbance value, and curve formula;

4. Luminescence measurement can quickly adjust the wavelength, measure absorbance, transmittance, and energy values;

5. Quantitative analysis supports users to create their own curves, which can be used to establish linear fitting, polynomial fitting (binomial, trinomial), exponential fitting, logarithmic fitting curves, and can be saved and directly called up next time;

6. Perform dynamic scanning with time as the coordinate axis, select a wavelength to continuously scan the sample and observe the change curve between time, and observe the trend of sample change;

7. Built in multi parameter Water Quality detection function, more than 60 detection indicators, and more than 110 detection modes can be directly called. The instrument can be used as both a photometer and a multi parameter water quality analyzer;

8. The graph display is clear and supports free scaling, making it easy to visually view the trend of data changes;

9. With a memory space of 16g, it can store 100000 pieces of massive data, and each functional data can be independently saved. It supports filtering, management, analysis, and export, and can save Excel and PDF file formats;

10. Support one click wavelength calibration, manual zeroing, and dark current calibration, which can quickly adjust the optical path status of the instrument to ensure its accuracy and stability;

11. Tungsten lamp/deuterium lamp dual beam optical system, with an independent switch for the light source that can be activated as needed, effectively extending the lifespan of the light source and reducing maintenance costs;

12. Socket type tungsten lamp/deuterium lamp, quick insertion and replacement of light source, no need for optical debugging, equipment maintenance is simpler;

13. The screen brightness can be adjusted, with a screensaver function that supports 0-90 ° angle adjustment, making it easy for users to operate and providing clearer viewing angles, while also effectively protecting the screen;

14. Using Android architecture to build LHOS operating system, supporting multiple functions such as WIFI, Internet of Things, Chinese input, data filtering and analysis, making instrument use simpler and more intelligent;

15. Intelligent Internet of Things applications, supporting access to user owned databases or Lianhua Cloud for querying and big data applications, can remotely monitor and control instruments;

16. Real time protection monitoring of the system, hardware level detection of the system's operating status, saving records and performing automatic system recovery in case of abnormalities, supporting factory settings recovery and network update functions

17. Built in operation assistance function, which allows users to view instruction manuals, quick start guides, and operation videos for easy learning and use of the instrument. The instrument supports multitasking and can be viewed at any time during the testing process;

18. Color comparison upgrade, four column automatic color comparison, supports 1cm-5cm dish color comparison, 16mm tube color comparison methods, and users can customize color comparison dish specifications.

19. Equipped with HDMI interface, it can be connected to large screen demonstrations, suitable for scientific research and teaching use;

20. Built in thermal printer, automatic/batch printing, simple, convenient and efficient operation;

21. Operation guide assistance, built-in instrument usage tutorial, quickly grasp the operation process;

1. Screen brightness adjustment, which can flexibly adjust the screen brightness according to the usage scenario;

Technical Parameter

Test items

No.	Items	Analysis method	Measuring range（mg/L）
1	COD	Rapid digestion spectrophotometry	0-15000
2	Permanganate index	Potassium permanganate oxidation spectrophotometric method	0.3-5
3	Ammonia nitrogen Nessler	Nessler's reagent spectrophotometric method	0-200（segmentation）
4	Ammonia 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 spectrophotometry	0.02-20
30	sulfate	Barium chromate spectrophotometric method	5-2500
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