Comfortech | UVmini-1240
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MEGA performance in a Mini space – MEGA capabilities at a Mini price

Minimal Training – Easy to Use
The large liquid-crystal display (LCD) has been incorporated with easy to follow prompts, large fonts, and graphics to help reduce the time needed to get your results. The description on the instrument’s soft keypad quickly guides you through specific programs.


Mighty Performance with Quantitative Methods
Everything from simple concentration measurements up to sophisticated quantitative calibration curves.
Some of the standard functions include:

  • Factor method for input of simple constants.
  • One point calibration curve with one standard sample and a point through the origin.
  • Multi-point calibration curve of the application requiring various standards. 1st, 2nd, and 3rd order polynomial fitting for calibration comes standard.
  • Two or Three wavelength quantitative analysis for measuring turbid samples or for measuring the effects of another distinguishable component.

Maximum Wavelength Scanning

The UV Mini comes standard with a Spectrum mode that allows for full spectral data acquisition over the wavelength range of 190nm to 1100nm. Upon completion of the spectral scan, the peaks and valleys can be marked within a few seconds. The standard peak pick function allows for clear and accurate detection of the most sensitive wavelengths.


..allows for full spectral data acquisition.”


Mega Data Archiving Capabilities
Methods, results, and raw data can be saved on either the standalone instrument, optional dedicated IC Data cards, or within a directory of an Windows PC with the help of the optional UV DATA MANAGER software. This provides unlimited storage and expanded capabilities in archiving methods and management of essential results.


Multiple Print Utilities
The UV Mini provide flexible print options with the use of either a thermal screen copy printer or a variety of different PC printers. The screen copy printer enables instant printing of tabulated data as well as copied information directly from the screen. The PC printers can be utilized for the same functions and for finer print resolution of spectral data.

Mini Effort to Customize
With over 35 different types of attachments including multicell positioners, sippers, temperature control devices, the UV Mini can provide the all the tools necessary to fit your specific application. The IC program cards quickly expand the functionally of the instrument. By simply inserting the appropriate IC card into the slot on the front panel, dedicated applications such as DNA/Protein analysis can now be performed.


Standard Applications with Each UV Mini Spectrophotometer !


Photometric Mode for Fixed Wavelengths
With the photometric mode, you can measure the absorbance or transmittance at a fixed wavelength. Simple quantitative analysis using the K-factor method can also be used. Results are automatically printed or are sent to the RS-232C port. With the various optional cell positioners or sipper/autosampler configuration, continuous measurement of samples is also possible.

Spectrum Mode for Wavelength Scanning
With this standard mode, you can acquire a full UV-Visible spectrum of samples from 190nm to 1100nm. Repeat scan will allow you to measure any spectral change over the entire range automatically. Also available as standard is spectral data processing functions such as scaling the graph and peak/valley detection.


Quantitation Mode for Single Component Analysis
This mode will allow you to setup a calibration curve for easy determination of unknown sample concentrations. One, two or three-wavelength modes are available. Selectable quantitative methods included K-factor, one point or multi-point calibration curves. 1st, 2nd, or 3rd order fits are also selectable.


Print Out
The measured spectrum can be printed out as a screen copy for quick display or plotted for the best-printing resolution.


UVMini 1240
Wavelength Range 190.0 ~ 1100.0 nm
Display Wavelength 0.1nm step
Selectable Wavelength 0.1nm step (1nm step in spectrum mode)
Scan Speed Wavelength change: approximately 3800nm/min
Scan: approximately 24~1400nm/min
Light Source Change Selectable from the following 3 types:

·                Auto change with wavelength, selectable wavelength 295nm ~ 364nm: 1nm interval, recommended wavelength: 340nm

·                Halogen lamp only

·                Deuterium (D2) lamp only

Measurement Method Single beam measurement
Light Source Auto correction with the computer memory
20W Halogen lamp (long-life 2000 hours)
Deuterium lamp (socket type)
Auto adjustment for maximum sensitivity
Monochromator Incorporates aberration-correcting concave blazed holographic grating
Detector Silicon photodiode
Spectrum Bandwidth 5nm
Wavelength accuracy ±1.0nm
Wavelength Repeatability ±0.3nm
Stray light less than 0.05%
(220.0nm Nal, 340.0nm NaNO2 & UV39)
Photometric Range Absorbance: -0.3~3.0 Abs
Transmittance: 0.0~200%
Recording Range Absorbance: -3.99~3.99 Abs
Transmittance: -399~399%
Photometric Accuracy ±0.005 Abs (at 1.0 Abs) – NIST 930D Filter
±0.003 Abs (at 0.5 Abs) – NIST 930D Filter
Photometric Repeatability ±0.002 Abs (at 1.0 Abs)
Drift less than ±0.001 Abs/h (after 2 hr warm-up)
Baseline Flatness ±0.010 Abs (after 1 hr warm-up, at 1100~200nm)
Noise less than 0.002 Abs, Peak to Peak
less than 0.0005 Abs, RMS
Sample Compartment Interior Dimensions: 110 (W) x 230 (D) x 105 (H)
(partial depth: 155.0mm)
2 Screw port for option accessory installation
Display 6 inc LCD (320 x 240 dot) with CFD lighting with contrast adjustment
Power Supply 100 ~ 120V 50/60Hz 160VA
200~240V 50/60Hz 160VA
Dimensions 416 (W) x 379 (D) x 274 (H) mm
Weight 11 kg
Ambient Temperature 15~35°C
Ambient Humidity 45~80%, less than 70% if over 30°C