CM-5 Spectrophotometer
The CM-5 bench-top spectrophotometer is a stand-alone, top-port color measuring instrument with a large LCD screen and onboard software; no need for a separate computer. The screen displays color plots and numerical and graphical data. This unit includes an Operation Wizard which option which guides the user through the measurement process. Automatic Calibration can be selected for calibration to be performed each time the unit is turned on. The unit can measure both reflectance and transmittance and the user can designate PASS/FAIL tolerances for each measurement.
The CM-5 and its accessories can handle measuring samples in many forms such as solids, pellets, powders, gelatins, pastes, and opaque, translucent, and transparent liquids. For the chemical and pharmaceutical industries, the CM-5 has the ability to take measurements according to several standard indices: Gardner, Hazen/APHA, Iodine Color Number, European Pharmacopoeia, and US Pharmacopeia. For multiple-user situations, the CM-5 can store and later recall settings using USB memory sticks, and data can also be stored on USB memory sticks for later analysis on a computer. The CM-5 can be connected to a PC with color software for more advanced analysis of data.
- 1-2-3 measurement – 1. Switch power on, 2. Position sample, 3. Press MEAS
- Large color LCD – easy to read, displays data numerically, graphically, and shows color plots and PASS/FAIL judgments
- Wizard for on-screen operation guidance – provides guidance for users to make instrument settings
- Multi-user friendly – can store each user’s settings on a USB memory stick and then read these settings back into the instrument for the next use. Target and measurement data can also be saved to the USB
- Automatic calibration – calibration can be performed automatically when the unit is switched on
- 8 languages- can be shown in English, Japanese, German, French, Italian, Spanish, Portuguese, and simplified Chinese
- Top-port design – makes sample positioning easy
- Three measuring areas – available target masks are able to adapt to different sample sizes: 30mm, 8mm, 3mm
- Measures variety of samples – optional Petri dish accessory enables measurement of granules, pellets, powders, pastes, chunky samples, and opaque liquids. Solids can simply be placed on top. 3mm target mask is suitable for small samples, and custom mini Petri dishes are available for tiny unique samples.
- Large transmittance chamber – can slide open the unit to reveal a large transmittance chamber with no sides, so even large sample sheets up to 60mm thick can be inserted and measured
- Liquid measurements using cells – can measure liquids with optional cells, lengths 2mm, 10mm, and 20mm in order to measure different densities
- Internal calibration for standard chemical/pharmaceutical indices – Gardner, Hazen/APHA, Iodine Color Number, European Pharmacopoeia, and US Pharmacopeia
- Spectral absorbance measurement – New Graphical and numerical Absorbance displays that relate to a variety of industries
- Illumination/viewing system
Reflectance:
di:8°, de:8° (diffuse illumination: 8° viewing)
SCI (specular component included)/SCE (specular component excluded) switchable
Conforms to CIE No. 15, ISO 7724/1, ASTM E 1164, DIN 5033 Teil 7, and JIS Z 8722 (Condition c)Transmittance:
di:0°, de:0° (diffuse illumination: 0° viewing)
- Integrating sphere size
- Φ152 mm
- Detector
- Dual 40-element silicon photodiode arrays
- Spectral separation device
- Planar diffraction grating
- Wavelength range
- 360 nm to 740 nm
- Wavelength pitch
- 10 nm
- Half bandwidth
- Approx. 10 nm
- 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
- Measurement/illumination area
Reflectance:
Changeable by changing mask and settings. LAV: Φ30 mm/Φ36 mm; MAV (optional): Φ8 mm/Φ11 mm; SAV (optional): Φ3 mm/Φ6 mm
Transmittance:
Φ26 mm
- Repeatability
- Spectral reflectance: Standard deviation within 0.1% (400 nm to 740 nm)
Chromaticity value: Standard deviation within ΔE*ab 0.04 * When a white calibration plate is measured 30 times at 10-second intervals after white calibration
- Inter-instrument agreement
- Within ΔE*ab 0.15 (Typical) (LAV/SCI)
(Based on 12 BCRA Series II color tiles compared to values measured with a master body under Konica Minolta standard conditions)
- Transmittance chamber
- No sides (unlimited sample length); Depth (maximum sample thickness): 60 mm
Sample holders (optional) for holding sheet samples or containers of liquid samples can be installed/removed
- Display
- 5.7-inch TFT color LCD
- Display languages
- English, Japanese, German, French, Italian, Spanish, Simplified Chinese, Portuguese
- Operating temperature/humidity range
- 13 to 33°C, relative humidity 80% or less with no condensation
- White/100% calibration
- Automatic white (reflectance)/100% (transmittance) calibration using internal white calibration plate
(Not applicable to 100% calibration when using cells for transmittance measurements of liquids.)
- Interfaces
- USB 1.1 (Connection to PC; USB memory stick); RS-232C standard (Connection to serial printer)
- Observer
- 2° Standard Observer or 10° Standard Observer
- Illuminant
- A, C, D50, D65, F2, F6, F7, F8, F10, F11, F12, ID50, ID65 (simultaneous evaluation with two light sources possible)
- Displayed data
- Spectral values/graph (reflectance, transmittance, absorbance), colorimetric values/graph, color-difference values/graph, pass/fail judgment, pseudo color, color assessment
- Color space
- L*a*b*, L*C*h, Hunter Lab, Yxy, XYZ, Munsell, and color differences in these spaces (except for Munsell)
- Index
Reflectance:
MI; WI (ASTM E 313-73, ASTM E 313-96); YI (ASTM E 313-73, ASTM E 313-96, ASTM D 1925);
ISO Brightness; B (ASTM E 313-73)Transmittance:
Gardner; Iodine Color Number; Hazen/APHA; European Pharmacopoeia; US Pharmacopeia
- User index
- User-defined index
- Color-difference equation
- ΔE*ab (CIE 1976), ΔE*94 (CIE 1994), ΔE00 (CIE 2000), ΔE (Hunter), CMC (l: c)
- 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.
- Power
- AC 100 to 240 V, 50/60 Hz (using exclusive AC adapter)
- Size
- Slide cover closed: 385 (W) × 192 (H) × 261 (D) mm
Slide cover open: 475 (W) × 192 (H) × 261 (D) mm
- Weight
- Approx. 5.8 kg
- Operating temperature/humidity range
- 13 to 33°C, relative humidity 80 % or less (at 35°C) with no condensation
- Storage temperature/ humidity range
- 0 to 40°C, relative humidity 80 % or less (at 35°C) with no condensation
Included Accessories
Suggested Accessories
Case Studies:
Clemson University: Understanding and Controlling Color
With the increasing diversity of products, product recognition is becoming more important. Along with product design, color is one of the major factors in creating a product image. It has a great effect on market appeal and sales.
The average consumer will not accept the color ranges that were the industry standard ten years ago. They are always searching for a better product - one that gives them the desired properties with a minimum of variation. Because of these requirements, companies are becoming increasingly concerned about color.
