Name of the equipment
Spectrophotometer
Brand
KONICA MINOLTA
Description
The CM-5 bench-top spectrophotometer is a user-friendly colour measurement device equipped with a keyboard and colour LCD screen, removing the necessity for a computer. It offers automatic calibration at each start-up, can measure various sample sizes and forms, and includes internal calibration for standard chemical and pharmaceutical indices.
Specification
|
Detector
|
Dual 40-element silicon photodiode arrays
|
|
Wavelength range
|
360nm to 740nm
|
|
Wavelength pitch
|
10 nm
|
|
Half bandwidth
|
Approx. 10nm
|
|
Measurement range
|
0 to 175 % (Reflectance or transmittance); Output/display resolution: 0.01%
|
|
Light source
|
Pulsed xenon lamp
|
|
Measurement time
|
Approx. 1 s (to data display/output); Minimum measurement interval: Approx. 3 s
|
|
Repeatability
|
Spectral reflectance: Standard deviation within 0.1% (400 nm to 740 nm)
|
|
Pass/fail judgment
|
Tolerances can be set to colorimetric values (except Munsell), color-difference values, or reflectance index values
|
|
Storable data
|
Measurement data: 4,000 measurements; Target color data: 1,000 measurements
|
|
USB memory stick* storage
|
Storage of measurement data and target color data. Storage/reading of measurement condition settings
|
|
|
* Security-enabled USB memory sticks cannot be used.
|
Applications
|
Measures a variety of samples
|
Optional Petri dish accessory enables measurement of pellets, granules, powders, chunky samples, pastes, and opaque liquids.
|
|
Large transmittance chamber
|
A large transmittance chamber with no sides is revealed by sliding open the unit, so even large sample sheets up to 60mm thick can be inserted and measured
|
|
Liquid measurements using cells
|
To measure liquids with optional cells, lengths 2mm, 10mm, and 20mm to measure different densities
|
Contact information
Dr Siu Ka Chai
TU305
ka-chai.siu@polyu.edu.hk
