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photoLab® 7100 (VIS) & PhotoLab 7600 (UV/VIS) – Spectrophotometer

The WTW photoLab® 7100 (VIS) and PhotoLab 7600 (UV/VIS) spectrometers combine conventional analysis with the spectral analysis and process pioneered in OptRF.
New standard optics with clear color display turn hard work into pleasure: easy setup, color coding, fast and comfortable.

photoLab® 7100 (VIS)

Wavelength Range 320 – 1100 nm
Optics Monochromator with Grating and step motor / reference beam
Lamp Wolfram-Halogen
Display Farbdisplay 7″ backlit
Bandwidth 4 nm
Measurement Concentration, Absorbance, % Transmission, Kinetics and Spectra in Abs or  %Transmission, Multiwavelengths and multistep readings
Scan speed 700-2000 nm/min,  Scans in 1, 2, 5, 10 nm steps of wavelength range
Wavelength accuracy/reproduceability ± 1 nm / < 0,5 nm
Photometric accuracy/reproduceability – 0,003 E for E < 0,600; 0,5% of values for 0,600 < E < 2,000
Photometric linearity < 1 % for A ≤ 2.000 in the range 340 … 900 nm
Straylight < 0,1 %T at 220 nm with NaI, < 0.05 % transmission at 340 and 408 nm with cut-off filter
Barcode Automatic method recognition including measurement range for all cuvette
Cuvette 16 mm round, rectangular 10 mm, 20 mm, 50 mm with automatic cell detection for automatic measurement range setting
Data storage 5000 meausrement values, spectra and kinetics approx. 40 MB => 500 spectra (300-900 nm) and 400 kinetics with 150 measurement values,
Methods and Profiles > 250 pre-programmed methods, 1000 user-defined methods, profiles for kinetics and spectra, comprehensive programming options
Interface / Update 1 USB-A, 1 USB-B, 1 Ethernet / Update via Internet and USB-Stick
IP Class IP 30 including drainage in optical compartment
Power Supply Universal power supply, optional supply via standard adaptor cable for car batteries
Temperature Range Operation: +10°C bis +35°C, Storage: -25°C bis +65°C
Weight / Dimensions approx. 4,5 kg / 404 x 197 x 314 (BxHxT)
Accessories PC software photoLab® Data spectral+photoLab® color, field case, checking tools for AQA

PhotoLab 7600 (UV/VIS)

Wavelength Range 190 – 1100 nm
Optics Monochromator with Grating and step motor / reference beam
Lamp Wolfram-Halogen
Display Farbdisplay 7″ backlit
Bandwidth 4 nm
Measurement Concentration, Absorbance, % Transmission, Kinetics and Spectra in Abs or  %Transmission, Multiwavelengths and multistep readings
Scan speed 700-2000 nm/min,  Scans in 1, 2, 5, 10 nm steps of wavelength range
Wavelength accuracy/reproduceability ± 1 nm / < 0,5 nm
Photometric accuracy/reproduceability – 0,003 E for E < 0,600; 0,5% of values for 0,600 < E < 2,000
Photometric linearity < 1 % for A ≤ 2.000 in the range 340 … 900 nm
Straylight < 0,1 %T at 220 nm with NaI, < 0.05 % transmission at 340 and 408 nm with cut-off filter
Barcode Automatic method recognition including measurement range for all cuvette
Cuvette 16 mm round, rectangular 10 mm, 20 mm, 50 mm with automatic cell detection for automatic measurement range setting
Data storage 5000 meausrement values, spectra and kinetics approx. 40 MB => 500 spectra (300-900 nm) and 400 kinetics with 150 measurement values,
Methods and Profiles > 250 pre-programmed methods, 1000 user-defined methods, profiles for kinetics and spectra, comprehensive programming options
Interface / Update 1 USB-A, 1 USB-B, 1 Ethernet / Update via Internet and USB-Stick
IP Class IP 30 including drainage in optical compartment
Power Supply Universal power supply, optional supply via standard adaptor cable for car batteries
Temperature Range Operation: +10°C bis +35°C, Storage: -25°C bis +65°C
Weight / Dimensions approx. 4,5 kg / 404 x 197 x 314 (BxHxT)
Accessories PC software photoLab® Data spectral+photoLab® color, field case, checking tools for AQA

All in one – one for all!
photoLab® 7100 VIS von 320 – 1100 nm offers the unique combination of systematic and spectral analysis in this class of spectrophotometers: Multi-purpose meters for the use from water analysis and wine industry to research and education. Well-proven and liked is the user guidance even for complex tasks. The brilliant HD color display supports menu-guided operations additionally with colored information and messages.

• Barcode support and automatic cuvette recognition
• Standard methods such as UVT, SAC, coloration or chlorophyll
• Multi-level AQA
• Comprehensive programming opportunities
Routine at it’s best
photoLab® 7100 VIS supports fast and affordable routine analysis via barcoded test kits for round and rectangular cuvettes. More than 250 methods are available for waste/drinking water, food & beverage industry as well as production, environmental monitoring or fish farming:

• Easy to use: place cuvette, read measurement value
• More than 250 test programs for water analysis, galvanics and general lab analytics
• Cell and reagent test kits with barcode for automatic program selection
• Automatic cuvette and measurement range detection for rectangular cuvettes
• Top reliability due to menu guided comprehensive Analytical Quality Assurance – AQA
• Measurement “Light” on the road with car battery use
• USB and Ethernet-connections for easy update, print to PDF or printer, storage and data export

From Food to Science

Special procedures for environmental and food parameters such as chlorophyll can be executed handy and clearly arranged due to an excellent menu guidance:
• Programmed multistep- and multiwavelength methods
• Comprehensive programming options for user defined requirements
• Spectra and Kinetics measurements
• Training of basics and modern photometry in education

photoLab® color: Color measurement instead of color perception

Color determination by means of photometric measurement has increased the accuracy and comparability in general compared to subjective perception of visual color measurement procedures. Color measurement is essential for many applications: from water analysis to food & beverage and quality control in production processes. Color values being a quality factor mostly lie within a certain user-specific tolerance range.

With photoLab® 7000 / 6000 Series and the optional PC-software photoLab® color common measurement procedures can be performed in a handy and neatly arranged way.

photoLab® Data spectral

The optional photoLab® Data spectral offers a GLP-compliant and convenient PC-interface to export, store and transfer data.

Innovative and well-proven – Optical reagent-free (OptRF) and routine analysis!
The spectrophotometer photoLab® 7600 UV-VIS offers the universal use from well-proven routine analysis to spectral analysis with pioneering procedure OptRF for reagent-free measurement of COD, Nitrate and Nitrite. Furthermore, important parameters such as UVT and SAC as well as comprehensive color measurement are supported. Being light-weighted and optionally powered by standard car battery, photoLab® 7600 UV-VIS can be operated On-site easily.

• OptRF for standard parameters COD, NO3, NO2 in the outlet of sewage plants
• Menu-guided operation
• Multi-step AQA
• Application support from chlorophyll to wine
• Comprehensive programming opportunities
The future has arrived: Optical reagent-free measurement of COD, nitrate and nitrite (OptRF)

• Faster than the fastest digestion
• No costs, as no reagents or chemicals required
• Check of measurement range
• Environmentally friendly and no health hazards

For the standard parameters COD, nitrate and nitrite, a spectrum in the UV range is evaluated by means of complex algorithms which are based on reference spectra. The result is put out directly as concentration reading, without the use of reagents. No potassium dichromate, no digestion – for quick testing. The composition of the water (matrix) is important for this value determination, since water is not equal to water.

The OptRF-methods are currently being developed for sewage plant outlets. They can be optimized for the respective municipal waste water matrix by user calibration via reference values performed with standard procedures like test kits. Depending on the composition of surface waters, the methods can be used here as well after testing and verifying with reference procedures.

OptRF: How does it work? Can I use it? What do I have to consider? Have a look into our OptRF testing procedure.

UVT and SAC

For the UV-Disinfection as well as for monitoring of organic pollution these two parameters constantly gain importance: 5 programs with and without turbidity correction are offered. You will find all important information about SAC in the following article as part of the photometry dictionary: “SAC is not equal to SAC”.

Well-proven routine analysis and wide-ranging application support

Simple measuring: photoLab® 7600 UV-VIS from 190 – 1100 nm supports the fastest and affordable routine analytics by using barcoded test kits and round and rectangular cuvettes just like the VIS version photoLab® 7100. More than 250 methods are available for water analytics, galvanics and general lab analytics.

Environmental parameters such as chlorophyll and application procedures for the food and beverage industry are supported by programmed methods and comprehensive programming options. With ist multi-wavelength, spectral and kinetics measurements this meter is suitable for mixed applications as well as research.

photoLab® color: Color measurement instead of color perception

The optional PC software photoLab® color + Data spectral offer comprehensive color measurement and convenient data management.