156
::
CHEMISTRY / BIOLOGY
5455.00
Spectrophotometer
Items included as standard:
This robust single-ray spectrophotometer covers the
2 ea. quartz cuvettes
wavelength range from 190 to 1000 nanometers. Measu-
4 ea. glass cuvettes
rements of absorbance, transmittance and concentration
User’s Guide and Windows software for data collection
are easy to perform. The desired measurement type is
selected via the heavy-duty foil keyboard. The measure-
Technical specificaxtions:
ment type is indicated with LED’s, and the wavelength
interval is shown on a 31⁄2 digit digital display. The result
Wavelength region: 190-1000 nm
of the measurement is shown on a 4-digit display.
Bandwidth: 5 nm
The spectrophotometer is supplied with a sled with room
Wavelength accuracy: +/- 2 nm
for 4 standard cuvettes so that 3 test samples can be
Wavelength reproducibility: +/- 1 nm
inserted at once along with a reference sample. The
Wavelength resolution: 1 nm
instrument is supplied with 2 quartz cuvettes (for the UV)
Measuring ranges: 0-125% T; 0-2.5 A;
and 4 glass cuvettes. The spectrophotometer is equip-
0-1999 C
ped with an RS232 interface which makes it possible to
Light sources: Tungsten halogen and
perform measurements via a PC. A special facility per-
deuterium lamps
mits scanning under PC-control, and experiments with
Readout, results: 4 digit 13 mm LED display
reaction kinetics can also be performed. In addition it is
Readout, wavelength: 31⁄2 digit 13 mm LED
of course possible to record standard graphs for deter-
display
minations of concentration as well as individual measure-
Size: 47x40x14 cm.
ments of absorbance and transmittance. A range of
Mass: 12 kg
accessories are available, e.g. a flow-through cuvette
Power supply: 230/115 VAC selectable
and sleds designed for use with other cuvette types. 5455.00 Spectrophotometer UV-2100
Peristaltic pump
– For titration-experiments
– In connection with column chromatography
– For dosage in connection with relay control
The pump works after peristaltic principles with 4 rolling
steel cylinders that presses the liquid through the silico-
netube.
The motor runs with constant speed at a certain voltage,
so it is possible to change the speed by changing the
voltage in the range 3-12 V, for short periods of time up
to 24 V.
Pump capacity: 0-13 ml/min.
Dimensions: Height 101 mm, width 51 mm, depth 103,
mass 340 g.
5480.00 Peristaltic pump 5480.00
®
Science Equipment for Education Physics
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