Indent

Touchscreen Single-Beam UV-Visible Spectrophotometer

Single-beam UV-visible spectrophotometer with a 7-inch touchscreen, 2 nm spectral bandwidth and on-board data handling, for fixed-wavelength assay and routine scanning.

Typical applications

  • Fixed-wavelength quantitative assay
  • Colorimetric determinations in water and effluent
  • Spectral scanning
  • DNA and protein quantification
  • Multi-wavelength analysis
  • Teaching and routine quality control

Conforms to

USP <857>
  • USP <857>Ultraviolet-Visible Spectroscopy

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Worth knowing before you order

This is the single-beam instrument in the touchscreen family. A single beam reads the blank and the sample at different moments, so lamp drift lands in the result: re-blank often, and choose a double-beam model if you scan or run kinetics. Two figures also separate it from the double-beam version and are easy to miss — the bandwidth is fixed at 2.0 nm rather than 1.0 nm, and wavelength accuracy is ± 0.5 nm rather than ± 0.3 nm; if a method names a bandwidth, this instrument will not meet a 1 nm requirement. The feature list on the model's own page repeats the double-beam page's wording about a 'dual optical path and dual detector' and the table lists a reference cuvette position, but the optical system row says single beam — take the table row and have it confirmed in writing. The baseline flatness row is printed in A/h, a drift unit rather than a flatness unit, and a 'Focal Length 10 mm' row duplicates the cell path length; both are left out. The 21 CFR Part 11 wording in the catalogue describes the software, and Part 11 compliance is demonstrated by your validated process, not shipped with a machine.

Specification

Technical specification for Touchscreen Single-Beam UV-Visible Spectrophotometer
Beam configurationSingle beam
Wavelength range190–1100 nm
Spectral bandwidth2.0 nm, fixed
Resolution0.1 nm
Wavelength accuracy± 0.5 nm
Wavelength repeatability± 0.2 nm
Photometric range0–200 %T; −0.3 to 3.0 A; 0–9999 C
Photometric accuracy± 0.2 %T (0–100 %T); ± 0.002 Abs (0–0.5 Abs); ± 0.004 Abs (0.5–1.0 Abs)
Photometric repeatability≤ 0.1 %T (0–100 %T); 0.001 Abs (0–0.5 Abs); 0.002 Abs (0.5–1.0 Abs)
Stability± 0.001 A/h at 500 nm
Stray light0.05 %T at 220 nm and 360 nm
Cell holder10 mm each, sample and reference cuvette holder
Light sourceTungsten and deuterium lamps, with usage-hour monitoring
DetectorSilicon photodiode
Display and memory7 in touchscreen, 800 x 480 HD TFT; 32 GB built-in
Control modeStand-alone, or PC software
Data outputUSB
Power supplyAC 220 V, 50/60 Hz
Packing dimensions (L x W x H)645 x 550 x 405 mm
Gross weight25 kg

Support available

  • Installation & commissioning
  • Calibration
  • Validation & qualification (IQ/OQ/PQ)
  • Operator training
  • Annual maintenance contract
  • Spares & consumables

Calibration is arranged through NABL-accredited laboratories under the relevant scope. We state the scope and the certificate number on the quotation — see what accreditation actually covers.

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