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V-770 UV-Visible/NIR Spectrophotometer

A wide range UV-Visible/Near Infrared Spectrophotometer with a unique optical design featuring a single monochromator and dual detectors for the wavelength range from 190 to 2700nm (3200nm option).

The V-770's single monochromator design provides for maximum light throughput with excellent absorbance linearity. A PMT detector is used for the UV to visible region and a Peltier-cooled PbS detector for the NIR region.

UV Spectrophotometers
Operating Systems

The V-770 UV-Visible/NIR spectrophotometer is operated using Spectra Manager™ Suite. This innovative cross-platform spectroscopy software is compatible with Windows 7 Pro (32- and 64-bit) and Windows 8.1 operating systems.
For simple operation, the handheld iRM has a great look and feel with a colour touch-sensitive screen. Data can also be downloaded to Spectra Analysis on a PC further PC data processing.
The V-700 Series has a growing list of software applications for both Spectra Manager™ and iRM. If you have an application which you don’t see listed, please let us know as we may already have it or we can prepare an application designed specifically for your requirements.

IQ Accessory and IQ Start

IQ Accessory provides automated accessory recognition with identification of the accessory within a method. The spectral data files include instrument and accessory information. IQ Start together with the Start Button on the front of the instrument can be used to start a method to make sample measurements routine.

Wavelength Range from UV to NIR

The V-770 measures the wavelength range of 190 to 2700nm (option 3200nm). The single monochromator design offers a significantly higher energy throughput than a double-monochromated design resulting in a better S/N ratio over the entire spectral range, even with narrow spectral bandwidth. The gratings and detectors switch-over can be set to change  automatically between 800-900nm.


An extensive range of accessories is available for the V-700 Series of UV-Visible/NIR spectrophotometers for virtually any biological, material science or routine QA/QC measurement. Some accessories are common across the V-700 Series and others are instrument specific. Refer to the instrument brochure for accessories specific to this instrument.
Options include a wide variety of liquid cell holders, micro and ultra-micro cell holders, flow cell units and accessories for solid samples. Advanced accessories, including automated cell changers, sippers, integrating spheres, automated and manual absolute reflectance accessories and programmable temperature control systems are available across the V-700 instrument systems.

Instrument Validation and Regulatory Compliance

The V-770 includes user-selectable validation to USP, EP and JP (or manually editable). With optional IQ/OQ.

V-770 UV-Visible-Near Infrared Spectrophotometer Specifications

Optical System Czerny-Turner grating mount
Single monochomator
Fully symmetrical double beam
Light source Halogen lamp, Deuterium lamp
Wavelength range 190 to 2700 nm (3200 nm option)
Wavelength accuracy +/-0.3 nm (at 656.1 nm)
+/-1.5 nm (at 1312.2 nm)
Wavelength repeatability +/-0.05 nm (UV-Vis), +/-0.2 nm (NIR)
Spectral bandwidth (SBW) UV-Visible: 0.1, 0.2, 0.5, 1, 2, 5, 10 nm
L2, L5, L10 nm (low stray light mode)
M1, M2 nm (micro cell mode)

NIR: 0.4, 0.8, 1, 2, 4, 8, 20, 40
L8, L20, L40 nm (low stray light mode)
M4, M8 nm (micro cell mode)
Stray light 1 % (198 nm KCL)
0.0005 % (220 nm NaI)
0.0005 % (340 nm NaNO2)
0.0005 % (370 nm NaNO2)
SBW: L2 nm

0.04 % (1420 nm: H2O)
0.1 % (1690 nm: CH2Br2)
SBW: L8 nm
Photometric range UV-Visible: -4~4 Abs
NIR: -3~3 Abs
Photometric accuracy +/-0.0015 Abs (0 to 0.5 Abs)
+/-0.0025 Abs (0.5 to 1 Abs)
+/-0.3 %T
Tested with NIST SRM 930D
Photometric repeatability +/-0.0005 Abs (0 to 0.5 Abs)
+/-0.0005 Abs (0.5 to 1 Abs)
Tested with NIST SRM 930D
Scanning speed 10~4000 nm/min (8000 nm/min in preview mode)
Slew speed UV-Vis: 12,000 nm/min
NIR: 48,000 nm/min
RMS noise 0.00003 Abs
(0 Abs, wavelength: 500 nm, measurement time: 60 sec, SBW: 2 nm)
Baseline stability 0.0003 Abs/hour
(Wavelength: 250 nm, response: slow and SBW: 2 nm)
Baseline flatness +/-0.0002 Abs (200 - 2500 nm)
Detector PMT, Peltier cooled PbS
Standard functions IQ accessories, Start button, Analog output
Standard programs Abs/%T meter, Quantitative analysis, Spectrum measurement, Time course measurement, Fixed wavelength measurement, Validation, Daily check, Dual wavelength time course measurement
Dimensions and weight 460(W) x 602(D) x 268(H) mm, 29 kg
Power requirements 150 VA
Installation requirements Room temperature: 15-30 Celsius, humidity: below 85%
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