WEIAI High Precision L7 Double Beam UV VIS Spectrophotometer 190 1100nm touchscreen Lab spectrophotometer uv vis
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- Supplier: Guangzhou Weiai Health Technology Co. Ltd.
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Product Overview
Description
Features
Lab Spectrophotometer Strong extended capability double beam Uv Vis Spectrophotometer for lab spectrophotomètre
L7 double beam UV-VIS spectrophotometers adopt double beam optical system, and blazed holographic gratings.
They have outstanding test precision and very competitive prices. 8-inch color touch-screen, cutting-edge user interface, powerful functions, and easy operation. With powerful functions, the equipment shows great performance in qualitative and quantitative testing, such as:
● Full-spectrum scanning
● Linear regression
● Detailed spectrum scanning
● Concentration direct reading
● Time-based kinetics determination
● Peak / Valley detecting
● GOTO λ
● Multi-wavelength measurement
The equipment is designed with sophisticated power protection system. With high capacity of internal memory, it can store testing results, scanned images, regression equations and correction data. Therefore, it follows a fast initialization when power on. The instrument can be connected with dedicated printer, which can print testing results, or draw curve from spectral scanning,fixed wavelength time-based scanning, and linear regression.
With USB COM port the device can be connected to a PC, which can not only enhance theperformance in data testing and spectrum scanning, but also expand the memory to save more testing results.
Main Features
● Double beam optical system
● 8-inch color touch-screen
● Automatic zero and full scale adjustment
● Automatic wavelength settings
● Equipped with USB COM port
● UV WIN8 Spectrum Data Processing Software optional
● Thermal plotter optional
They have outstanding test precision and very competitive prices. 8-inch color touch-screen, cutting-edge user interface, powerful functions, and easy operation. With powerful functions, the equipment shows great performance in qualitative and quantitative testing, such as:
● Full-spectrum scanning
● Linear regression
● Detailed spectrum scanning
● Concentration direct reading
● Time-based kinetics determination
● Peak / Valley detecting
● GOTO λ
● Multi-wavelength measurement
The equipment is designed with sophisticated power protection system. With high capacity of internal memory, it can store testing results, scanned images, regression equations and correction data. Therefore, it follows a fast initialization when power on. The instrument can be connected with dedicated printer, which can print testing results, or draw curve from spectral scanning,fixed wavelength time-based scanning, and linear regression.
With USB COM port the device can be connected to a PC, which can not only enhance theperformance in data testing and spectrum scanning, but also expand the memory to save more testing results.
Main Features
● Double beam optical system
● 8-inch color touch-screen
● Automatic zero and full scale adjustment
● Automatic wavelength settings
● Equipped with USB COM port
● UV WIN8 Spectrum Data Processing Software optional
● Thermal plotter optional
UV-visible spectrophotometer | |||||||
Model | L7 | L8 | L9 | 760CRT | |||
Metering method | Dual beam | ||||||
Monochromator | Czerny - Turner | ||||||
Focal length | 160mm | 200mm | |||||
Grating | 1200 lines/mm | 1600 lines/mm | Holographic sparkle, 1600 lines/mm | ||||
Beam splitting system | - | chopper | |||||
Detector | silicon photovoltaic cells | Imported receiver | Imported photomultiplier tube R928 | ||||
Spectral bandwidth | 0.08~5nm, interval 0.01nm, continuously adjustable | ||||||
Wavelength setting | Touch screen input | computer input | |||||
Wavelength range | 190-1100nm | 190-900nm | |||||
Wavelength accuracy | ±0.3nm | ±0.3nm(actual measurement≤0.2nm) | ±0.3nm (built-in automatic wavelength correction device) | ||||
Wavelength repeatability | ＜0.2nm | ＜0.1nm | ＜0.2nm | ||||
Resolution | - | Better than 0.15nm | |||||
Wavelength scan speed | fast, medium, slow | ||||||
Light source switching wavelength | 340nm | ||||||
Stray light | ＜0.03%(T) | ＜0.02%(T) | ＜0.08%(T) | ||||
Photometric range | 0.0~200.0% T -0.301~4.000A 0.000~9999C | ||||||
Photometric accuracy | ±0.3%T | ±0.3%T ±0.002Abs(0-0.5A) ±0.004Abs(0.5-1A) | ±0.3%T (measured with NBS930D) | ||||
Photometric Repeatability | ＜0.15%T | ＜0.15%T 0.001Abs(0-0.5A) 0.002Abs(0.5-1A) | ＜0.2%(T) | ||||
Baseline straightness | ±0.0015A(200~1090nm) | ±0.0008A | ±0.002A | ||||
Noise | 100% (T)≤0.15%(T) 0% (T) ≤ 0.1%(T) | 0.1%T | ±0.3(T)(100% position)±0.1%(T)(0% position) | ||||
Baseline drift | ±0.0009Abs/0.5h (2h after power-on, at 500nm) | ±0.0009Abs/0.5h (2h after power-on, at 250nm and 500nm) | ＜±0.004 A/30min | ||||
UV-visible spectrophotometer | ||||||||
Model | L3/L3S visible | L5/L5S | L6/L6S | 757 | ||||
Metering method | proportional Dual beam | |||||||
Monochromator | Czerny - Turner | |||||||
Focal length | 160mm | |||||||
Grating | 1200 lines/mm | |||||||
Detector | Imported receiver | |||||||
Spectral bandwidth | 1.8nm | |||||||
Wavelength setting | Touch screen input | |||||||
Wavelength range | 325-1100nm | 190 -1100nm | ||||||
Wavelength accuracy | ±0.5nm | ±0.3nm | ±0.5nm | |||||
Wavelength repeatability | ≤0.2nm | ≤0.1nm | ≤0.2nm | |||||
Wavelength scan speed（S type） | fast, medium, slow | - | ||||||
Light source switching wavelength | 340nm | |||||||
Stray light | ≤0.05% (T) | ≤0.05% (T) | 0.03% (T) | ≤0.05% (T) | ||||
Photometric range | 0.0~200.0% T -0.301~4.000A 0.000~9999C | |||||||
Photometric accuracy | ±0.5%T ±0.008Abs(0.5-1A) ±0.004Abs(0.5-1A) | ±0.3%T ±0.004Abs(0-0.5A) ±0.002Abs(0-0.5A) | ||||||
Photometric Repeatability | ≤0.2%T 0.004Abs(0.5 -1A) 0.002Abs(0.5 -1A) | ≤0.15%T 0.002Abs(0-0.5A) 0.001Abs(0-0.5A) | ||||||
Baseline straightness（S model） | ±0.002A | ≤±0.002A (200nm~1090nm) | ≤±0.0015A (200nm~1090nm) | - | ||||
Noise | 100% (T)≤0.2%(T) 0% (T) ≤ 0.1%(T) | 0.15%T | 100% (T)≤0.15%(T) 0% (T) ≤ 0.1%(T) | |||||
Baseline drift | ±0.0009Abs/0.5h (2h after power-on, at 500nm) | ±0.0009Abs/0.5h (2h after power-on, at 250nm and 500nm) | ||||||
Company Profile
Guangzhou WEIAI Health Technology co.,Ltd It is a competitive, emerging composite company, with products produced and sold by itself, and a combination of factories and distributors. As one of leading manufacturers for high quality laboratory equipments inChina. Since foundation, we are specialized in research, manufacture and sale laboratory instruments, incubators, sterilizers and other instruments.We have 14 years of design and development experience.
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Logistics Method & Payment Method
FAQ
Q： Are you factory or trading company?
A：We are a factory.
Q. What's the MOQ ?
A:(1). Normally,MOQ is 1 piece. But if the items are in stock,there is no MOQ. The quantity is according to the clients requires.
(2). If there is no stock,the general MOQ are in big difference due to the different products. But the quantity still can be
negotiated.
(2). If there is no stock,the general MOQ are in big difference due to the different products. But the quantity still can be
negotiated.
Q：What is your principle for the samples ?
A:Machines generally do not provide free samples.
Q：Which payment can be acceptable ?
A:We could accept the payment by L/C, T/T, Paypal, Western Union,etc.
Q：How about your delivery time?
A:Generally, it will take 7 to 15 working days after receiving your advance payment.Depend on the quantity.
Q. Certificate & Quality.
A：CE and ISO certified for most products. Good quality firstly to avoid any defective products,Protective packaging to avoid destroy during delivery.
Q：Machine page language
A:Pure English operation panel, display , manuals ;
installation & operation videos will be provided to you as a guidance
installation & operation videos will be provided to you as a guidance
Q：Service
A：We could provide Online instruction; Real-time support by video-call or voice-chat,During warranty time, we can send product accessories when you need for free;Technical
guidance is free and ready forever.
guidance is free and ready forever.
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