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TOPAZ EX Detector with optical connectors
Information
Two wavelength (200 up to 320 nm) in one external cell
Description
TOPAZ EX Detector with optical connectors
is a UV detector, which allows measuring absorbance of two wavelengths simultaneously in one cell
connected using fibre optic cable with SMA connectors.
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.
Noise level at 254 nm is ± 1 x 10-4 AU with an empty cell.
The unit’s DAD (diode array detector) design offers many advantages:
- A wavelength setting may be changed in steps of 1nm
- The unit is easy for operating, reference and sample signal are available for detector diagnostics
- Output signal is it available in digital and analogue form on the output connector
- Work hours of lamp are counted using build in counter.
Specification
Specification
| Wavelength range | 200 - 320 nm |
| Spectral half-width | 8 nm |
| Accuracy of adjustment | ± 1 nm |
| Reproducibility | ± 0.5 nm |
| Light source | Deuterium discharge lamp |
| Noise level at empty cell (240 nm, TC 1 s) | ± 1 x 10-4 AU |
| Drift at empty cell (240 nm after 1 h) | 5 x 10-4 AU/hr |
| Output and input optical connector | SMA |
| Time constant | 1 s |
| Output for integrator | 1 V/AU |
| Interface | RS 232 |
| Power supply | 230 V ± 10%, 50 Hz , 115/100 V± 10%, 50-60 Hz |
| Power input | 75 VA |
| Dimensions (W x H x D) | 220 x 178 x 435 mm |
| Weight | 12 kg |
Ecom cell used with unit
Preparative cell PLCC 20 (optionally)
| Optical path – Basic continuously changeable | 0.1 to 1.5 mm |
| Discontinuous changes of basic optical path | +1 and +2 mm |
| Connecting thread of inlet nipple | NPT 1/4”-18 |
| Inlet nipple I.D. | 1/4” (6,35 mm) |
| Internal cell diameter | 8 mm |
| Maximum flow rate | 15 l/min by pressure 0,5 MPa |
