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CR-331c

CR-331c

Color Measurement

Specifications

Measuring Head Specifications

Receptors

6 silicon photocells (3 to measure source illumination, 3 to measure reflected light) filtered to detect primary stimulus values for red, green and blue light

Spectral response Closely matches CIE 1931 Standard Observer curves
Light Source Pulsed xenon lamp
Illumination/measurement system 45° circumferential illumination/0° viewing angle
Measuring area 25mm
Short-term repeatability Chromaticity (x, y): Within 0.0002
Color difference Δ(E* ab): Standard deviation within 0.07
(Measurement conditions: White calibration plate measured 30 times at 10-second intervals)
Inter-instrument agreement ΔE*ab within 0.8
(Measurement conditions : Comparison of average measured values of 13 BCRA Series || color tiles to values measured with master body)
Temperature range Operation: 0° to 40°C (32° to 104°F); Storage: -20 to 40°C(-4 to 104°F)
Humidity range Less than 85% relative humidity at 35°C/95°F with no condensation
Dimensions 262 x 116 x 116mm
(10-15/16 x 4-9/16 x 4-9/16 in.)
Connecting cable: 1300 x 8.5mm (51-3/16 x 5/18 in.)
Weight 1400g(49-3/8oz.)
Accessories Included Calibration Plate CR-A46;
Case CR-A61

DP-301 Specifications

Measurement modes Absolute and difference
Chromatic systems absolute: CIE Yxy, L*a*b*, L*C*h,
and XYZ; Hunter Lab Difference: Δ(Yxy),
Δ(L*a*b*)/ ΔE*ab, Δ(L*C*h*)/Δ E*ab,
and Hunter Δ(Lab)/ΔE
Illuminant conditions CIE Illuminant C or D65
Calibration channels 20; calibration channel 00 for primary standard(white calibration plate), channels 01 to19 for user-selected reference colors
Calibration functions Multi-calibration: data in all calibration channels utilized to determine measured values
Manual: Data in a single calibration channel selected by user utilized to determine measured values
Target-color channels 20; set by measurement or keyboard input
Data memory Space for 300 sets of measurement data; space divisible into 20 pages;
data remains in memory even if POWER switch is set to OFF
Display range 0.01 to 160% reflectance
Display 16 characters x 2 lines ;
dot-matrix LCD with adjustable
viewing angle
Printer 24-character thermal-dot
Statistical calculations Maximum, minimum, mean, and standard deviation
Calendar/clock/timer Data and time of first and last measurements on each memory page stored and printed out; timer intervals user-selectable from 3 sec. to 99 min.
Data input/output RS-232C format, ASCII code; transmission rate: 4800 baud (selctable by service personnel: from 600 to 9600 baud for data output or from 600 to 4800 baud for data input); output voltage: CMOS 5V; RS-232C terminal uses DIN 8-pin connector
Other High-repeatability multiple-measurement-averaging mode; remote-control socket; E ALARM output socket
Power source 6 AA-size alkaline-manganese or carbon-zinc (1.5V) or nickel-cadmium (1.2V) batteries, or included AC adapter connected to AC power source; memory equipped with built-in Ni-Cd battery
Battery performance Alkaline-manganese: 690 measurements; Carbon-zinc: 280 measurements; Nickel-cadmium: 600 measurements(Measurement conditions: Primary standard measured in ABS. measuring mode at 10-second intervals with printout in one color space after each measurement)
Temperature range Operation: 0 to 40°C (32 to 104°F)
Storage: -20 to 40°C(-4 to 104°F)
Humidity range Less than 85% relative humidity at 35°C/95°F with no condensation
Dimensions 50 x 220 x 200mm
(2 x 8 11/16 x 7 7/8 in.)
Weight 1300g (45 7/8 oz.) without batteries
Accessories Included AC Adapter (AC-A10 worldwide except N. America;
AC-A10N in N. America);
thermal paper (one roll);
DIN 8-pin plug (1); 3.5mm(1/8 in.) subminiature plug(2)

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