UV-VIS FIXED WAVELENGTH DETECTOR is a detector with an interference filter. By means of this filter can be this unit adjusted at one fixed wavelength in range of 200 – 800 nm. Noise level at 254 nm is ± 0.5 x 10-5 AU with an empty cell. (Filter is not include price) The unit may be used for routine analytical chromatography as well as for preparative chromatography, according to the selected cell. The unit is easy to operate, reference and sample signals are available for detector diagnostics as well as information on lamp operating hours. Output signal is available in both digital and analogue form on the output connector. It is possible to control the unit using the keypad or an RS232 interface Connecting capillaries are led from the detector’s right side panel. The detector is equipped with a high standard deuterium lamp in a special socket that enables easy changing. It is possible to change the interference filter by customer.
Wavelength
range |
200
- 800 nm |
Spectral
half-width |
depending
of used filter |
Light
source |
Deuterium
discharge lamp |
Noise
level at empty cell |
±
0,5 x 10-5 AU |
Drift
at empty cell |
2x 10-4
AU/hr |
Materials
in contact with mobile phase |
PTFE;
fused silica, stainless steel, Vespel, PEEK |
Time
constant |
Fast,
middle and slow |
Output
for integrator Interface |
1 V/AU |
Power
supply |
RS 232 |
Power
input |
100,
115 and 230V, 50/60 Hz |
Dimensions
(W x H x D) |
220 x
170 x 450 mm |
Weight
|
8 kg
|
The new DDT-3200
is the first detector of its class with DAD technology. With its versatile
possibilities it not olny copes with routine analyses but is also capable
for special tasks. The device is offered in three stages of expansion:
- DAD
- 1 channel VWD
- 4 channels VWD
The arrangement with a diode
array-monochromator by Carl Zeiss ® enables an clear, easy accessible
assembly. The detector is compact and thereby it saves place in the laboratory.
Lamps and cells can be replaced simply by the front drawer.
Already in the basic version has the possibility of external triggering, solvent
recycling with build-in solenoid-controlled valve driver, the time program
for the wavelength switching as well as the inspection of the lamp characteristics.
With the VWD's a option of scanning beyond a defined wavelength range and the RS232/USB interface is offered. A driver for chromatography software "Clarity" is available.
The unit is supplied completely
with analytic cell, vis lamp and 2000-hours working D2-lamp.
Specifications:
- DAD- and VWD-version (1- oo
4-channel design)
- D2-lamp with 2000 hours guaranteed durability
- Lamps and cell accessible from ahead
- Time program for wavelength shifting with 10 entries max. (VWD)
- Integrated Solvent-recycler with magnetical valve adapter
- Simply and clear handling
- Recallablee device data, i.e. intensity and working hours of the lamps
- External triggering for Autozero and start of wavelength programms
- Bio-compatibility trough PEEK cell and - compression couplings
- Saving of a snapshot of the spectrum
- RS232 and USB interface (optional at VWD's)
- Driver for Clarity software
Dual UV Detector is a new type of UV detector, which allows measuring absorbance of two wavelengths simultaneously in one cell. This unit is used in liquid chromatography to verify analyzed samples by means of a second wavelength or in situations when some peaks absorb on different wavelengths. It is possible to use the detector in analytical, preparative or flash applications by using different cells. Noise level at 254 nm is ± 1 x 10-4 AU with an empty cell.
Wavelength
range |
200
- 320 nm |
Accuracy
of adjustmenty |
8 nm |
Reproducibility |
±
1 nm |
Light
source |
±
0.5 nm |
Noise
level at empty cell |
Deuterium
discharge |
Materials
in contact with mobile phase |
PTFE;
fused silica, stainless steel, Vespel, PEEK |
Time
constant |
Fast,
middle and slow |
Output
for integrator Interface |
1 V/AU |
Power
supply |
RS 232 |
Power
input |
100,
115 and 230V, 50/60 Hz |
Dimensions
(W x H x D) |
220 x
178 x 435 mm |
Weight
|
12 kg
|
SAPPHIRE 800 UV-VIS Variable Wavelength DETECTOR is a detector with continuously variable wavelength in the range of 190 – 800 nm and a noise level ± 0.5 x 10-5 AU. The unit may be used for routine analytical chromatography as well as for preparative chromatography, according to the selected cell. The unit is easy to operate, reference and sample signals are available for detector diagnostics as well as information on lamp operating hours. Output signal is available in both digital and analogue form on the output connector. It is possible to control the unit using the keypad or an RS232 interface Connecting capillaries are led from the detector’s right side panel. The detector is equipped with a high standard deuterium lamp in a special socket that enables easy changing. For visible part of spectrum is used as secondary light source a tungsten lamp. Wavelength can be programmatically changed during the performance of an analysis. The detector performs automatic wavelength calibration after the lamp has been switched on. A cell is included as a component of the detector.
