Coloromat® 100

Spectrophotometer for Color Measurement

The Coloromat allows an easy and reliable color measurement of liquids. The Coloromat is equipped with a continuous measuring mode with free configurable sampling rate for monitoring color changes in product streams. Transmission, extinction, and ICUMSA liquid color units at the recommended standard wavelength 420 nm are standard with this product.


  • Measurement of transmission/extinction
  • Color determination of liquid samples
  • Up to nine fixed wavelengths
  • Polarimeter tubes up to 100 mm
  • Integrated ICUMSA methods

Easy to Use

The touch screen is used for soft key functions and alphanumerical inputs which allow easy handling for example batch name, user etc.. The wavelengths are selected via the touch screen. Three wavelengths are pre-installed as standards, optional the Coloromat 100 can be equipped with six further customized wavelengths. This opens a wide range of applications.

Due to the generous dimensions of the sample chamber the use of polarimeter flow through tubes up to 100 mm as standard cuvettes allows easy filling and a high through-put. A 100 mm tube provides ten times better measurement accuracy and resolution compared to a 10 mm cuvette.

The sample compartment is open to the top and the bottom avoiding spillage to enter the unit. Due to its unique optical design the Coloromat is not affected by stray light. The Coloromat 100 is equipped with a continuous measuring mode with free configurable sampling rate for monitoring color changes in product streams as a function of time.

The general operating software contained in the FLASH MEMORY can be updated by PC (data file downloaded from Internet) and has a capacity for 250 pre-programmed tests. Up to 230 tests can be stored in the RAM. The import of data by touch screen or PC are possible.


  • Enzymatic determination
  • Color measurement of liquid crystal sugar (ICUMSA)
  • Color index determination of beverages, e.g. soft drinks, wine, etc.
  • Determination of the color of extracts  (coffee, and many more)
  • Color measurement of beer and wort (EBC color number)
  • Biochromate measurements
  • Multi-standard methods
  • Simple extinction measurements
  • Monitoring of time-dependent color changes
Beer analysis

Product in depth

  • Objective and repeatable measurements
  • Three fixed wavelengths 340, 420 and 720 nm
  • Very narrow band width
  • Optional six further wavelengths (in the range of 340 – 900 nm)*
  • Automatic wavelength setting
  • Polarimeter cells up to 100 mm usable
  • Single or flow through measurements
  • Remote control via PC
  • Data output to PC or to directly connected printer, also via USB
  • Up to 250 methods programmable
  • GLP / GMP conform documentation
  • Largly maintenanee free


OpticsSingle beam photometer
Wavelength range340 – 900 nm*
Pre-installed filters560, 420, 720 nm
FWHM420 nm = 4 nm**
720 and 560 nm = 7 nm**
Wavelength selectionVia touch screen
Resolution extinction0.001
Measurment accuracy± 0.020 extinction at 420 nm
± 0.010 extinction at 560 nm
± 0.010 extinction at 720 nm
± 0.020 extinction at optional filters

ICUMSA method

Measuring range0 – 16,000 ICUMSA Units (IU)
Resolution ICUMSA1 IU
Accuracy IU± 10 % for colors < 20 IU
± 5 % for colors > 20 IU

Additional information

Light sourceLED
Operator InterfaceTouch screen for direct functions and alphanumerical inputs
Data presentationGraphic display
Data outputRS232C & USB
Operating temperature10 – 40°C
LanguagesEnglish and German, others on request

* For WL < 500 nm and > 700 nm, additional LED’s may be required to ensure measurement accuracy and stability
** This very narrow half-value width enables high measurement accuracy as well as very good repeatability



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