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VUV-24 Voice: 719-573-9692 Fax: 719-573-8780 Web:
www.jmstsystems.com
VUV-24
Variable Single Wavelength UV-VIS Absorbance Monitor
The VUV-24, is one of the most versatile, reliable and sensitive visible ultraviolet absorbance monitors on the
market today. The VUV-24 is particularly suited to the demands of Chromatography. The VUV-24 uses state of
the art photodiode design with complimentary high-photon throughput optics. Supported by a variety of
sample cell designs, this detector is capable of solving virtually every application needed in the laboratory.
The VUV-24 is capable of working from 190 to 940 nm. The working wavelength can be selected from the
front panel by simple up/down arrows or through the standard serial interface.
The VUV-24 has one of the lowest noise and drift specifications in the industry. Extremely high signal to noise
ratios are obtained with our standard flow cells and the sensitivity is substantially below the normal
"chromatographic drift" that is routinely found in most separations.
The VUV-24 is designed for the highest linearity in absorbance possible.
The VUV-24 is designed to allow in field modifications to any of our sample cells. Available sample cells
include, HPLC,
HPLC, preparative and capillary (CE and CEC).
All lamps for the VUV-24 are pre-aligned and readily accessible for in field service. The standard unit comes
with a high quality long life (>2000 hrs) Deuterium lamp for use from to 190 nm to 400 nm. The VUV-24 is
ready to be used at wavelengths as high as 940 nm with an increase in band pass in the visible region.
The VUV-24 is ready to go anywhere in the world. The universal power supply has an AC input voltage of 100
to 240 Volts at 50 or 60 Hz. A rear barrier strip provides easy access to event, auto-zero and high-resolution
analog Input/Output. The analog output is suitable for interface to integrators, chart recorders, or commonly
used computer interface boards. Computer control and data acquisition can also be performed via the
standard feature serial interface (RS-232) on the rear panel. Specifications of the VUV-24 Variable Wavelength Ultraviolet/Visible Absorbance
Monitor:
Light Source(s):
Deuterium lamp, typical lifetime of >2000 hours, easily changed, prealigned
Optical design:
Prism monochromator (patented) with dual beam silicon photodiodes: wavelength selection from 190 to 940
nm, one wavelength at a selection is output to the serial interface and the high resolution analog output
Wavelength selection:
190 nm to 940 nm in increments of 1 nm; user selected from front panel via push button input or selected from
computer via RS-232 input/output
Wavelength accuracy:
better than +/- 2 nm range
Wavelength precision:
better than +/- 0.2 nm
Wavelength band-pass:
<8.0 nm (typical) at half-height at 250 nm
Noise and Drift:
< +/- 1 X 10 -5 AU (over 30 sec period peak to peak, 1.0 sec rise time); < +/- 1 X 10-4 AU (over 30 min.
period peak to peak, 1.0 sec rise time) with STD sample cell at constant temperature
Input/Output connections:
RS-232 computer I/O; auto-injection input (event or run); auto-zero input; one analog integrator or chart
recorder output, (voltage range default 1.0 V/AU); selectable analog range outputs of 4.0, 2.0, 1.0, 0.5, 0.2,
0.1, 0.05, 0.01, 0.005, 0.002, 0.001, 0.0005 AU/V with voltage range of +/- 4 V at any scale
Displays:
Absorbance (5 digit LED); wavelength (3 digits LED); analog output range (momentarily from absorbance
display by pressing range switch); reference light level; sample light level
Size:
6.6" (height) X 9.4" (width) X 15" (depth with sample cell cover); Approx. 7.3 kg (16 lb. shipping weight)
Sample cells:
Standard HPLC flow cell with 10 mm pathlength, total dead volume of 18.0 ul (illuminated volume): other
optional cells: on column capillary cell, micro cell (1.0 µl), 5 mm path length HPLC cell (10 µl volume), high
volume preparative cell, high pressure/high volume preparative, cuvette holder. Please note all cells are can be
changed by the user. Other cells are available; not all are listed.
Product Ordering Information:
9024-0001
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, 10 mm
STD cell, 18 microliter
9024- 0002 Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, ADJ
PREP cell , 0 to 3 mm pathlength
9024-0006
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, 10 mm
X 10 mm CUVT holder
9024-0007
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, CAP
cell , for 365 micron capillary with ID from 25 to 300 microns
9024-0008
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, 10 mm
STD SS cell , 18 microliter
9024-0009 Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, 10mm
STD-PREP cell , low back pressure, high sensitivity
9024-0010
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, 5 mm
STD cell , 10 microliter, low RI efffect (this cell availbale in low back
pressure version)
9024-0011
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, PREP-
FIX cell, 0 to 3 mm pathlength, set to 1.0 mm if not specified, very very low
backpressure
9024-0012
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring, PREP-
FIX SS cell, high pressure rating cell (8000psi), 0 to 3.0 mm pathlength,
set to 1.0 mm by default
9024-0013
Variable wavelength ultraviolet/visible absorbance monitor
detector with D2 lamp 190 to 940nm, single wavelength monitoring,
MICRO-1000 cell, 2 mm pathlength, 1 microliter volume
9024-0014
Variable wavelength ultraviolet/visible absorbance
monitordetector with D2 lamp 190 to 940nm, single wavelength
monitoring,MICRO-250 cell, 1 mm pathlength, 0.250 microliter volume
JMST Systems
P.O. Box 15005
Colorado Springs, CO 80935 USA
Phone: 719-573-9692
Fax: 719-573-8780
sales@jmstsystems.com
www.jmstsystems.com
Specifications: rev 5.1
Specifications and prices are subject to change at any time