Spectrophotometers photoLab® 7100 VIS / 7600 UV-VIS  WTW
Spectrophotometers photoLab® 7100 VIS / 7600 UV-VIS  WTW
Spectrophotometers photoLab® 7100 VIS / 7600 UV-VIS

The spectrophotometers photoLab® 7100 VIS and photoLab 7600® UV-VIS combine routine analysis with spectral analysis and optical reagent-free measurement procedure OptRF - saving time, money and hazardous reagents. photoLab® 7000 series is qualified for many fields of application from waste water treatment plant to production and quality control but also for service labs, education and research. The reference beam optics together with the colour display allows for clearly-arranged, colour-coded, fast and comfortable working.

Reagent-free measurement procedure 'OptRF' for COD, nitrate and nitrite:
With photoLab® 7600 UV-VIS, the important parameters COD, nitrate and nitrite of municipal waste water outlet samples can be measured simply and directly via the optical reagent-free measurement (OptRF) in the UV range. Pipette sample into cuvette, put them into the meter and read result. Handy way for retainer samples or a quick check without digestion.
  • Faster than any digestion.
  • Cost-free.
  • Eco-friendly.
  • Non-hazardous.

Proven routine analysis and comprehensive programming options
Approx. 250 methods for routine analysis with commercial test kits as well as special methods such as NH3, CO2, colour, SAC but also multi-wavelength and multi-step mesurements such as Chlorophyll and some enzymatic test like glucose are programmed. Additionally, a brewery package is available. User-defined (complex) programmes are easy to define via on-screen guidance. With the PC software package for data management and colour measurement via photoLab® color industrial applications for quality control allow reliable and GLP-conform data records.
  • Unique routine analysis with barcode recognition and automatic measurement range adaption for all cuvette sizes.
  • Powerfull AQS tools.
  • CIE-compliant and other colour measurement options with optional PC software package photoLab® color + data spectral.

The photoLab® spectrophotometers are highly suitable for onsite use and support comfortable matrix adjustment for WTW IQ SENSOR NET via IQ-LabLink®.
Technical Data:
Optics:monochromator with grating and step motor / reference beam
colour display 7" backlit
4 nm
Measurement:concentration, absorbance, % transmission, kinetics and spectra in Abs or % transmission, multiwavelengths and multistep readings
Scan speed:700 to 2000 nm / min, scans in 1, 2, 5, 10 nm steps of wavelength range
Wavelength accuracy / reproduceability:
Photometric accuracy / reproduceability:
± 1 nm / < 0,5 nm
- 0.003 E for E < 0.600; 0.5 % of values for 0.600 < E < 2.000
Barcode:automatic method recognition incl. measurement range for all cuvettes
Cuvette:16 mm round, rectangular 10, 20, 50 mm with automatic detection without adapter
Data storage:5000 meausrement values, spectra and kinetics approx. 40 MB = 500 spectra (300 to 900 nm) and 400 kinetics with 150 measurement values
Methods and profiles:approx. 250 pre-programmed methods, 1000 user-defined methods, 20 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 incl. drainage in optical compartment
Temperature range:operation: + 10 to + 35 °C
storage: - 25 to + 65 °C
Dimensions (B x H x T):
approx. 4.5 kg
404 x 197 x 314 mm
Mains supply:universal power supply, optional supply via standard adaptor cable for car batteries
DescriptionOrder No.PU manuf. prod. no. 
photoLab® 7100 VIS320 to 1100 nmtungsten halogen lamp54226411-250203
photoLab® 7600 UV-VIS190 to 1100 nmxenon flash lamp54226401-250204