High-precision benchtop liquid spectrophotometer for chroma measurement (DS-812N/DS-816N)
Image shown is the DS-816N
Left: DS-812N & Right: DS-816N
The DS-812N and DS-816N
are advanced benchtop spectrophotometers specifically developed for the accurate colour measurement of transparent and translucent liquids. Designed for use in pharmaceuticals, beverages, cosmetics, chemicals, and industrial oils, they provide dependable results across a wide range of standards and colour indices.
Using a d/0 geometry (diffused illumination, 0° observation) and covering an extended wavelength range of 360–780 nm, these instruments ensure precise and repeatable measurement even for low-volume or temperature-sensitive samples.
The DS-816N model includes a built-in heating module capable of maintaining sample temperatures up to 90 °C—ideal for materials like waxes and fats. Both models support a minimum sample volume of just 1 ml, fast 1.5-second test cycles, and store over 100,000 data entries locally.
With built-in support for over 30 industry chroma scales—including Pt-Co, Gardner, Saybolt, and Pharmacopoeia standards—and easy software upgrades via OTA, the DS-812N and DS-816N offer a complete and future-ready solution for high-precision liquid colour analysis.
Wide Wavelength Range (360–780 nm)
The DS-812N and DS-816N offer a spectral range of 360 to 780 nm—beyond the visible spectrum of the human eye—enabling accurate colour measurement of a wide range of transparent and translucent liquids.
Built-in Colour Scales for Industry Standards
Over 30 industry-recognised colour indicators are preloaded, including:
-
Pt-Co (Platinum-Cobalt)
-
Gardner
-
Saybolt
-
ASTM Colour
-
Pharmacopoeia Standards (Chinese, US, and European)
-
EBC (Beer)
-
ICUMSA (Sugar)
These make the instruments ideal for pharmaceuticals, beverages, cosmetics, petrochemicals, and industrial fluids.
Intelligent Zero Calibration
Advanced zero-point calibration ensures high stability and accuracy with repeatability as fine as ΔE*ab ≤ 0.01—even in fluctuating environmental conditions.
High-Precision Heating Module (DS-816N only)
The DS-816N includes a built-in PTC heating system capable of maintaining sample temperatures up to 90 °C. This feature is particularly useful for substances like waxes and fats that require liquefaction before measurement.
Minimum Sample Volume: Just 1 ml
Thanks to a refined optical design and precise light control, accurate readings are possible with as little as 1 millilitre of liquid—saving valuable sample material. Standard cuvettes are fully supported, with no need for custom holders.
OTA Software Upgrades
Users can easily upgrade the instrument’s software and colour indices via over-the-air (OTA) updates, ensuring long-term compatibility with evolving industry standards.
Fast Measurement in Under 2 Seconds
Each measurement takes only 1.5 seconds, significantly reducing testing time while maintaining high repeatability.
Intuitive 7” Touchscreen Interface
The large touch display provides clear visualization of results and supports standalone operation without the need for a connected PC. Up to 100,000 data records can be stored directly on the instrument.
821 Technical Specifications
Illumination/ Viewing System: Reflectance: d/8(Diffused illumination, 8 degree viewing); Simultaneous measurement of SCI/SCE, conforms to CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724/1, DIN5033 Teil7, JIS Z8722 condition C, ASTM E1164, ASTM-D1003-07
Transmittance d/0 (Diffused illumination, 0 degree viewing)
Sensor: Silicon Photodiode Array
Grating Method: Concave Grating
Sphere Diameter: 152mm
Wavelength: 360nm-780nm
Wavelength Pitch: 10nm
Half Band Width: 5nm
Reflectance Range Resolution: 0-200%,0.01%
Light Source: Pulse Xenon Lamp and LED
UV Measurements: Include UV, 400nm cut, 420nm cut, 460nm cut
Measurement Time: SCI/SCE < 2s;SCI+SCE < 4s
Measurement Aperture: Reflectance: XLAV Φ30mm, LAV 18mm,MAV Φ11mm,SAV Φ6mm
Transmittance: Φ25mm(Automatic aperture size recognition)
Transmittance Sample Size: No limit on sample width and height, thickness ≤50mm
Long Term Repeatability: XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 (20℃±10℃ arbitrary temperature change, white tile is measured every hour within 24 hours）
Repeatability: XLAV Spectrum Reflectance/Transmittance: standard deviation within 0.1%;XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 * When a white calibration plate is measured 30 x at 10-second intervals after white calibration.
Inter-Instrument Agreement: XLAV ΔE*ab 0.15 (BCRA Series II, Average measurement of 12 tiles, at 23℃)
Observer: 2° and 10°
Illuminants: A,C,D50,D55,D65,D75,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,CWF,U30,DLF,NBF,TL83,TL84.
Display: Reflectance and Transmittance graph/value, colour value, colour difference values, pass/fail, colour simulation, colour assessment, haze, liquid chromaticity values, colour tendency
Colour Spaces: L*a*b, L*C*h, Hunter Lab, Yxy, XYZ
Other Indices: White Index (ASTM E313-00, ASTM E313-73, CIE/ISO, AATCC, Hunter, Taube Berger, Stensby)
Yellow Index (ASTM D1925,ASTM E313-00,ASTM E313-73),Tint(ASTM E313-00), Metamerism index milm, stain fastness, colour fastness, ISO brightness, R457, A density, T density, E density, M Density, APHA/Pt-Co/Hazen, Gardner,
Saybolt, ASTM colour, Haze, Total Transmittance, Opacity, Colour Strength.
Colour Difference: ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔEab(Hunter), 555shade sort.
Storage Memory: 8GB
Screen Size: 7 Inch Touch Screen (Andriod)
Power Adaptor: 12V/3A
Operating Temperatures: 5 to 40℃ (40 to104F), relative humidity 80% (at 35℃) no condensation.
Storage Temperature: -20 to 45℃ (-4 to113F), relative humidity 80% (at 35℃) no condensation.
Included accessories: Power Adaptor, USB Cable, fixture for transmittance, USB (PC software), Black Calibration Cavity, White and Green Calibration Tile, Reflectance Test Support,30mm,18mm,11mm and 6mm apertures, reflectance sample fixture, Glass Cell 40x10mm.
Interfaces: RS-232, USB, USB-B
Other Functions:
1. Camera to view measurement area;
2. Supports horizontal, vertical and downward facing (requires pneumatic ram sold separately) measurements
3. Auto humidity and temperature compensation function
Language: English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish, Chinese.
821 Technical Specifications
Illumination/ Viewing System: Reflectance: d/8(Diffused illumination, 8 degree viewing); Simultaneous measurement of SCI/SCE, conforms to CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724/1, DIN5033 Teil7, JIS Z8722 condition C, ASTM E1164, ASTM-D1003-07
Transmittance d/0 (Diffused illumination, 0 degree viewing)
Sensor: Silicon Photodiode Array
Grating Method: Concave Grating
Sphere Diameter: 152mm
Wavelength: 360nm-780nm
Wavelength Pitch: 10nm
Half Band Width: 5nm
Reflectance Range Resolution: 0-200%,0.01%
Light Source: Pulse Xenon Lamp and LED
UV Measurements: Include UV, 400nm cut, 420nm cut, 460nm cut
Measurement Time: SCI/SCE < 2s;SCI+SCE < 4s
Measurement Aperture: Reflectance: XLAV Φ30mm, LAV 18mm,MAV Φ11mm,SAV Φ6mm
Transmittance: Φ25mm(Automatic aperture size recognition)
Transmittance Sample Size: No limit on sample width and height, thickness ≤50mm
Long Term Repeatability: XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 (20℃±10℃ arbitrary temperature change, white tile is measured every hour within 24 hours）
Repeatability: XLAV Spectrum Reflectance/Transmittance: standard deviation within 0.1%;XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 * When a white calibration plate is measured 30 x at 10-second intervals after white calibration.
Inter-Instrument Agreement: XLAV ΔE*ab 0.15 (BCRA Series II, Average measurement of 12 tiles, at 23℃)
Observer: 2° and 10°
Illuminants: A,C,D50,D55,D65,D75,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,CWF,U30,DLF,NBF,TL83,TL84.
Display: Reflectance and Transmittance graph/value, colour value, colour difference values, pass/fail, colour simulation, colour assessment, haze, liquid chromaticity values, colour tendency
Colour Spaces: L*a*b, L*C*h, Hunter Lab, Yxy, XYZ
Other Indices: White Index (ASTM E313-00, ASTM E313-73, CIE/ISO, AATCC, Hunter, Taube Berger, Stensby)
Yellow Index (ASTM D1925,ASTM E313-00,ASTM E313-73),Tint(ASTM E313-00), Metamerism index milm, stain fastness, colour fastness, ISO brightness, R457, A density, T density, E density, M Density, APHA/Pt-Co/Hazen, Gardner,
Saybolt, ASTM colour, Haze, Total Transmittance, Opacity, Colour Strength.
Colour Difference: ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔEab(Hunter), 555shade sort.
Storage Memory: 8GB
Screen Size: 7 Inch Touch Screen (Andriod)
Power Adaptor: 12V/3A
Operating Temperatures: 5 to 40℃ (40 to104F), relative humidity 80% (at 35℃) no condensation.
Storage Temperature: -20 to 45℃ (-4 to113F), relative humidity 80% (at 35℃) no condensation.
Included accessories: Power Adaptor, USB Cable, fixture for transmittance, USB (PC software), Black Calibration Cavity, White and Green Calibration Tile, Reflectance Test Support,30mm,18mm,11mm and 6mm apertures, reflectance sample fixture, Glass Cell 40x10mm.
Interfaces: RS-232, USB, USB-B
Other Functions:
1. Camera to view measurement area;
2. Supports horizontal, vertical and downward facing (requires pneumatic ram sold separately) measurements
3. Auto humidity and temperature compensation function
Language: English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish, Chinese.
821 Technical Specifications
Illumination/ Viewing System: Reflectance: d/8(Diffused illumination, 8 degree viewing); Simultaneous measurement of SCI/SCE, conforms to CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724/1, DIN5033 Teil7, JIS Z8722 condition C, ASTM E1164, ASTM-D1003-07
Transmittance d/0 (Diffused illumination, 0 degree viewing)
Sensor: Silicon Photodiode Array
Grating Method: Concave Grating
Sphere Diameter: 152mm
Wavelength: 360nm-780nm
Wavelength Pitch: 10nm
Half Band Width: 5nm
Reflectance Range Resolution: 0-200%,0.01%
Light Source: Pulse Xenon Lamp and LED
UV Measurements: Include UV, 400nm cut, 420nm cut, 460nm cut
Measurement Time: SCI/SCE < 2s;SCI+SCE < 4s
Measurement Aperture: Reflectance: XLAV Φ30mm, LAV 18mm,MAV Φ11mm,SAV Φ6mm
Transmittance: Φ25mm(Automatic aperture size recognition)
Transmittance Sample Size: No limit on sample width and height, thickness ≤50mm
Long Term Repeatability: XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 (20℃±10℃ arbitrary temperature change, white tile is measured every hour within 24 hours）
Repeatability: XLAV Spectrum Reflectance/Transmittance: standard deviation within 0.1%;XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 * When a white calibration plate is measured 30 x at 10-second intervals after white calibration.
Inter-Instrument Agreement: XLAV ΔE*ab 0.15 (BCRA Series II, Average measurement of 12 tiles, at 23℃)
Observer: 2° and 10°
Illuminants: A,C,D50,D55,D65,D75,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,CWF,U30,DLF,NBF,TL83,TL84.
Display: Reflectance and Transmittance graph/value, colour value, colour difference values, pass/fail, colour simulation, colour assessment, haze, liquid chromaticity values, colour tendency
Colour Spaces: L*a*b, L*C*h, Hunter Lab, Yxy, XYZ
Other Indices: White Index (ASTM E313-00, ASTM E313-73, CIE/ISO, AATCC, Hunter, Taube Berger, Stensby)
Yellow Index (ASTM D1925,ASTM E313-00,ASTM E313-73),Tint(ASTM E313-00), Metamerism index milm, stain fastness, colour fastness, ISO brightness, R457, A density, T density, E density, M Density, APHA/Pt-Co/Hazen, Gardner,
Saybolt, ASTM colour, Haze, Total Transmittance, Opacity, Colour Strength.
Colour Difference: ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔEab(Hunter), 555shade sort.
Storage Memory: 8GB
Screen Size: 7 Inch Touch Screen (Andriod)
Power Adaptor: 12V/3A
Operating Temperatures: 5 to 40℃ (40 to104F), relative humidity 80% (at 35℃) no condensation.
Storage Temperature: -20 to 45℃ (-4 to113F), relative humidity 80% (at 35℃) no condensation.
Included accessories: Power Adaptor, USB Cable, fixture for transmittance, USB (PC software), Black Calibration Cavity, White and Green Calibration Tile, Reflectance Test Support,30mm,18mm,11mm and 6mm apertures, reflectance sample fixture, Glass Cell 40x10mm.
Interfaces: RS-232, USB, USB-B
Other Functions:
1. Camera to view measurement area;
2. Supports horizontal, vertical and downward facing (requires pneumatic ram sold separately) measurements
3. Auto humidity and temperature compensation function
Language: English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish, Chinese.
Illumination/ Viewing System: Reflectance: d/8(Diffused illumination, 8 degree viewing); Simultaneous measurement of SCI/SCE, conforms to CIE No.15, GB/T 3978, GB 2893, GB/T 18833, ISO7724/1, DIN5033 Teil7, JIS Z8722 condition C, ASTM E1164, ASTM-D1003-07
Transmittance d/0 (Diffused illumination, 0 degree viewing)
Sensor: Silicon Photodiode Array
Grating Method: Concave Grating
Sphere Diameter: 152mm
Wavelength: 360nm-780nm
Wavelength Pitch: 10nm
Half Band Width: n/a
Reflectance Range Resolution: 0-200%,0.01%
Light Source: Pulse Xenon Lamp and LED
UV Measurements: Include UV, 400nm cut, 420nm cut, 460nm cut
Measurement Time: SCI/SCE < 2s;SCI+SCE < 4s
Measurement Aperture: Reflectance: XLAV Φ30mm, LAV 18mm,MAV Φ11mm,SAV Φ6mm
Transmittance: Φ25mm(Automatic aperture size recognition)
Transmittance Sample Size: No limit on sample width and height, thickness ≤50mm
Long Term Repeatability: XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 (20℃±10℃ arbitrary temperature change, white tile is measured every hour within 24 hours）
Repeatability: XLAV Spectrum Reflectance/Transmittance: standard deviation within 0.1%;XLAV Chromaticity value: Standard deviation within ΔE*ab 0.015 * When a white calibration plate is measured 30 x at 10-second intervals after white calibration.
Inter-Instrument Agreement: XLAV ΔE*ab 0.15 (BCRA Series II, Average measurement of 12 tiles, at 23℃)
Observer: 2° and 10°
Illuminants: A,C,D50,D55,D65,D75,F1,F2,F3,F4,F5,F6,F7,F8,F9,F10,F11,F12,CWF,U30,DLF,NBF,TL83,TL84.
Display: Reflectance and Transmittance graph/value, colour value, colour difference values, pass/fail, colour simulation, colour assessment, haze, liquid chromaticity values, colour tendency
Colour Spaces: L*a*b, L*C*h, Hunter Lab, Yxy, XYZ
Other Indices: White Index (ASTM E313-00, ASTM E313-73, CIE/ISO, AATCC, Hunter, Taube Berger, Stensby)
Yellow Index (ASTM D1925,ASTM E313-00,ASTM E313-73),Tint(ASTM E313-00), Metamerism index milm, stain fastness, colour fastness, ISO brightness, R457, A density, T density, E density, M Density, APHA/Pt-Co/Hazen, Gardner,
Saybolt, ASTM colour, Haze, Total Transmittance, Opacity, Colour Strength.
Colour Difference: ΔE*ab, ΔE*CH, ΔE*uv, ΔE*cmc, ΔE*94, ΔE*00, ΔEab(Hunter), 555shade sort.
Storage Memory: 8GB
Screen Size: 7 Inch Touch Screen (Andriod)
Power Adaptor: 12V/3A
Operating Temperatures: 5 to 40℃ (40 to104F), relative humidity 80% (at 35℃) no condensation.
Storage Temperature: -20 to 45℃ (-4 to113F), relative humidity 80% (at 35℃) no condensation.
Included accessories: Power Adaptor, USB Cable, fixture for transmittance, USB (PC software), Black Calibration Cavity, White and Green Calibration Tile, Reflectance Test Support,30mm,18mm,11mm and 6mm apertures, reflectance sample fixture, Glass Cell 40x10mm.
Interfaces: RS-232, USB, USB-B
Other Functions:
1. Camera to view measurement area;
2. Supports horizontal, vertical and downward facing (requires pneumatic ram sold separately) measurements
3. Auto humidity and temperature compensation function
Language: English, Russian, Spanish, Portuguese, Japanese, Thai, Korean, German, French, Polish, Chinese.
