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UV 780 UV/VIS/NIR Spectrophotometer article

System Description

The V-780 UV-Visible-Near Infrared (UV-Vis/NIR) spectrophotometer features a monochromator with automatically exchanged dual gratings: 1200 lines/mm for the UV/VIS region; 600 lines/mm for the NIR region. A PMT detector is provided for the UV-visible region and a high sensitivity InGaAs photodiode detector is employed for the NIR region. Both gratings and detectors are automatically exchanged within the user selectable 800 to 900 nm range.

Operating Systems

Two user interfaces are available. The Spectra Manager™ II software, the latest version of JASCO's innovative cross-platform spectroscopy software, is now compatible with Windows 7 Pro (32- and 64-bit configurations) and the Windows 8.1 operating systems.

For simple and routine operation, the intelligent remote module (iRM) has been completely redesigned with a new look and feel, with a color LCD touch screen. Data can also be downloaded to a USB memory stick for portability or further PC data processing.

The V-700 Series has a growing list of software applications for both Spectra Manager II and for the 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.

Both of these interfaces allow full system control and advanced data processing. Spectra Manager CFR is the 21 CFR part 11 compliant version of software and is available as an option.

System Features

IQ Accessory and IQ Start

The IQ Accessory function provides automated accessory recognition with identification of the accessory within the method. The spectral data files include the accessory information and serial number while designated instrument parameters can be configured and loaded for optimum sample measurements. IQ Start together with the Start Button is used to immediately start a sample method for immediate access when making routine measurements

Enhanced Sensitivity in the NIR region

The V-780 can measure the spectrum of a sample within the wavelength range of 190 to 1600 nm with enhanced sensitivity in the NIR region as a result of the InGaAs detector. The single monochromator design offers a higher energy throughput resulting in a better S/N ratio over the entire spectral range, even using narrow bandwidth settings.

Full Line of Sampling Accessories

A full complement 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 your desired 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, include automated cell changers, sippers, integrating spheres, automated and manual absolute reflectance accessories and programmable temperature control systems are available for any of the V-700 instrument systems.

V-780 UV-Vis Spectrophotometer Specifications

Optical System Czerny-Turner mount
Single monochromator
Fully symmetrical double beam type
Light Source Halogen lamp, Deuterium lamp
Wavelength range 190 to 1600 nm
Wavelength accuracy +/-0.3 nm (at 656.1 nm)
+/-1.0 nm (at 1312.2 nm)
Wavelength repeatability +/-0.05 nm (UV-Vis), +/-0.1 nm (NIR)
Spectral bandwidth (SBW) UV-Vis: 
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)
0.2, 0.4, 0.5, 1, 2, 4, 10, 20,
L4, L10, L20 nm (low stray light mode)
M2, M4 nm (micro cell mode)
Stray light 1 % (198 nm KCL 12 g/L aqueous solution)
0.005 % (220 nm NaI 10 g/L aqueous solution
0.005 % (340 nm NaNO2 50 g/L aqueous solution)
0.005 % (370 nm NaNO2 50 g/L aqueous solution)
SBW: L2nm

0.04 % (1420 nm: H2O)
SBW: L4 nm
Photometric range UV-Vis: -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: 12000 nm/min
NIR: 24000 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
0.04 % (220 nm NaI 10 g/L aqueous solution)
0.02 % (340 nm NaNO2 50 g/L aqueous solution)
0.02 % (370 nm NaNO2 50 g/L aqueous solution)
(10 mm cell)
Baseline Stability ±0.0004 Abs/hour
(Value obtained more than two hours after turning on the light source, 
when the room temperature is stabilized, wavelength: 250 nm,
response: slow and SBW: 2nm.)
Baseline flatness +/-0.0002 Abs (200 - 1600 nm)
Detector Photomultiplier tube, Peltier cooled InGaAs photodiode
Standard facilities  
Standard program  
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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