K13550 Automated Colorimeter

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KOEHLER - K13550 Automated Colorimeter

  K13550 Automated Colorimeter
• Touch-screen TFT-Color Display
• Automatic cuvette recognition
• Data log for 500 color values, 50 color reference values, 500 photometric readings, 20 wavelength scans, 20 time scans
• Automatic zero calibration program
• Reference Beam Technology
• Password protection, GLP documentation
• USB-Ports: 1 x Type A and 1 x Type B

Click on the image to view a larger photo of the instrument.


High performance, microprocessor controlled spectrophotometer with
a wavelength range from 380 to 720 nm for color measurement or 320 nm
up to 1100 nm for routine analysis. The K13550 can carry out an exact
colorimetric evaluation in conformity with several ISO/ASTM standards with just a single measurement and display the result in terms of traditional color systems such as Iodine, Hazen/APHA or Gardner color numbers as well
as in modern CIE-L*a*b* color values. Besides the over 20 color indexes, transmittance and absorbance can be measured at individual wavelengths, so that the K13550 can be used universally for analytical purposes in the laboratory.

Color measurement methods
• Iodine, Hazen, APHA, Pt/Co, Gardner-Color
• Saybolt, Klett-color
• Hess-Ives, ADMI, Yellowness-index
• AOCS-Red/Yellow, Chlorophyll A
• CIE-Lab, Hunter-Lab, XYZ, Tristimulus Values
• European and US Pharmacopoeia

Photometer methods
• Wavelength Scan 320-1100nm incl. Difference Mode
• Time Course Mode
• Single and Multi Wavelength Mode

Conforms to the specifications of:
ASTM D156, D1209, D1544, D1925, D6045, D6166; ISO 2049, 4630, 6271;
DIN 5033, 6162, 6174; AOCS Cc 13e; USP Ch 631, 1061; Ph EUR;
NF M 07-003; NF T 60-104
Spectral Bandwidth: 5 nm
Wavelength Reproducibility: 0.1nm
Wavelength Resolution: 1nm
Scanning Speed: 12 nm/s (in steps of 1 nm)
Stray Light: < 0.1% T at 340 nm with NaNO2
Color Measurement: 380-720nm in steps of 10nm
Wavelength Range: 320-1100nm in steps of 1nm
Wavelength Accuracy: +/- 1.5 nm (wavelength range 340-900 nm)
Photometric Measuring Range: +/- 3.5 Abs (wavelength range 340-900 nm)
Photometric Accuracy: 5 m Abs at 0.0 to 0.5 Abs
1% at 0.50 to 2.0 Abs
Photometric linearity: < 0.5% to 2 Abs
1% at > 2 Abs with neutral glass at 546 nm
Light Source: Gas-filled Tungsten (visible)

Included Accessories
• Universal power supply 100-240V, 50-60 Hz, with exchangeable
plug adapters for EU, GB, US, China
• Dust Cover
• User Manual

Dimensions lxwxh,in.(cm)
14.5 x 14.1 x 5.7 (36.8 x 35.9 x 14.4)
Net Weight: 14.11 lbs (6.4 kg)

Shipping Information
Shipping Weight: 18 lbs (8.2 kg)

Electrical Requirements
115-240V, 50/60 Hz

Ordering Information
Product Description

Automatic Colorimeter 115-240V, 50/60 Hz

Product Description
Starter Kit
Consists of Addista Color Standards; 50 x 10 Rectangular Cuvettes, Pk/10; Cuvette Set, 10 x 11mm round glass cuvettes
USB-Barcode Scanner (hand-held scanner)

Test filter set for stray light, absorbance and wavelength check


USB-Keyboard (keyboard layout: US)


Certified Testing solution set “Addista-Color”


Round cuvettes 11mm, glass, disposable, pk/500


Rectangular cuvette 50 x 10mm, plastic, disposable, pk/50


Rectangular cuvette 50 x 10mm with caps, plastic,
disposable, pk/10


Rectangular cuvette 50 x 10, glass, pk/1


Rectangular cuvette 10 x 10, glass, pk/3


Printer for K13550


Rack for 7 50x10 cuvettes


Please use the K13250-1 Rectangular cuvette 50 x 10, glass, pk/1 or K13500-3 Rectangular cuvette 10 x 10, glass, pk/3 when testing hydrocarbons for color measurements. The disposable polycarbonate cuvettes are made for aqueous samples.