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Spectrophotometer photoLab® 7100 VIS

WTW's spectrophotometer photoLab® 7100 VIS

The spectral photometer photoLab® 7100 VIS with AQA and IQ LabLink combines secured water analysis with uncomplicated special and spectral analytics!

  • Barcode support
  • Menu-guided operation
  • Multi-level AQA
  • Comprehensive programming opportunities

All in one - one for all!

Spectrophotometers of WTW offer 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 operations additionally with colored information and messages.

Routine at it’s best

photoLab® 7100 VIS of 320 – 1100 nm supports fastest 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 PC-software photoLab® color common measurement procedures can be performed in a handy and neatly arranged way.

photoLab® Data spectral

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

IQ LabLink

IQ LabLink offers an outstanding connection between IQ Sensor Net and lab measurement for top measurement reliability: Measurement data of IQ Sensor Net sensors (VARiON®) can be transferred via USB stick directly into photoLab® 7100 VIS and back: faultless and without cable tangle thanks to sensor identification.


Model Description Order no.
photoLab® 7100 VIS Spectral photometer VIS 320-1100 nm 250203

Technical Data

Model photoLab® 7100 (VIS)
Wavelength range 320 - 1100 nm
Bandwidth 4 nm
Technology Monochromator with reference beam
Lamp Tungsten-Halogen
Wavelength resolution/accuracy/reproducibility ±1nm; < 0.5 nm
Photometric accuracy/reproducibility - 0.003 E for E < 0.600; 0.5% of the display for 0.600 < E < 2.000
Scan speed 700-2000 nm/min in 1, 2, 5, 10 nm steps
Barcode/cuvette detection 16 mm round, 10, 20, 50 mm
Data memory 5000 measurements, 40 MB for spectrums and kinetics
User-defined programs 1000 user programs, 20 user profiles each, Spectrum+Kinetics
Interface/Update 1 USB-A, 1 USB-B, 1 Ethernet / Update via via Internet and USB-Stick


Model Description Order no.
photoLab® Data spectral+photoLab® color Color application package + PC software for easy data management + color measurement 902761
photoLab® Brew Application package for brewing according to MEBAK (EBC/DIN) for photoLab® 6000/7000 series 250214
LM spectral 7100 Replacement lamp for photoLab®7100 VIS TBD (25021X)
LM spectral 6100 Replacement lamp for photoLab®6100 VIS 250211
FC spectral 6/7 Field case for photoLab® 6000/7000 series, with foam insert, unpopulated 250212
PL6-10 SIC Stability aid for 10 mm cuvettes 250213
ADA 12V photoLab®6000 series adapter cable for car battery 902760
SK/TC Connecting cable/zero modem cable 820070

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Basics and principles for water, routine and general analysis – we share our know how: 

WTW Photometry Compendium in cooperation with the G.I.T. Laboratory Journal

in cooperation with the G.I.T. Laboratory Journal.

  • applied tips 
  • additional information
  • even more

Take a look!