TOPAZ EX Detector with optical connectors

Two wavelength (200 up to 320 nm) in one external cell

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Part number

 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.
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
Wavelength range 200-320 nm
Accuracy of adjustment ± 1 nm
Typical spectral half-width 8 nm
Reproducibility ± 0.5 nm
Light source Deuterium discharge lamp
Time constant 1.0 sec.
Output for integrator 1 V/AU
Communication RS232
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
Noise level at empty cell (254 nm, TC 1 s) ± 1 x 10-4 AU
Drift at empty cell (254 nm after 1 h) 5 x 10-4 AU/hr
Output and input optical connector SMA