A1 Specifications
Measuring Functions: Absolute Difference Indices:
CIE XYZ ∆(XYZ)
X%Y%Z% ∆(X%Y%Z%)
CIE Yxy ∆(Yxy)
CIE LAB ∆(L*a*b*) ∆E*
ab
Hunter LAB ∆(Lab) ∆E
CIE LUV ∆(L*u*v*) ∆E*
uv
CIE LCH ∆(L*C*H*) ∆E*(ab, CMC, or uv space)
Whiteness per ASTM E313
Whiteness & Tint per CIE
Yellowness per ASTM E313
Yellowness per ASTM D1925
Display: 2 row by 16 character Supertwist dot matrix LCD
Measuring Geometry: 0°/45°, fiber optic pickup, multi-sensor array
Measuring Area: 8.0mm & 4.0mm (20mm optional)
Light Source: Gas filled tungsten lamp, approx. 2856°Κ
(corrected for D65 illuminant)
Illuminant Types: C, D
65
, D
50,
A, F2 (cool white fluorescent),
F7 (broad-band white fluorescent),
F11 (TL84), & F12 (Ultralume 3000)
Standard Observers: 2° & 10°
Measurement Range: 0 to 200% reflectance
Spectral Range: 400nm - 700nm
Spectral Interval: 20nm (15nm bandwidth)
Resolution: .01%
Inter-Instrument Agreement:948: 0.40∆E*
ab
average (Based on average of 12 BCRA tiles)
968: 0.20∆E*
ab
average (Based on average of 12 BCRA tiles)
Short Term Repeatability: 948: 0.10 max ∆E*
ab
on a white ceramic (20 measurements)
968: 0.05 max ∆E*
ab
on a white ceramic (20 measurements)
Warm Up Time: None
Measurements Per Charge: Approx. 1000 typical
Measuring Time: Approx. 2 seconds
Data Interface: Patented Bidirectional RS-232, 300 to 9600 baud
(user selectable), bipolar output
Power Supply: Six rechargeable AA NiCad batteries
7.2v total rated @ 600mAh (included)
Charge Time: Approx. 14 hours
AC Adaptor Requirements: 948/968 90 - 130VAC, 50 - 60Hz, 18W Max.
948X/968X 180 - 260VAC, 50 - 60Hz, 20W Max.
12VDC @ 700ma: Positive Tip
Operating Temp. Range: 50° - 104°F (10° - 40°C)
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