manufacturer:      Agilent

model:                  8453

 Specifications

Optical performance

Wavelength range                  190–1100 nm

Slit width                                 1 nm

EP resolution test                    > 1.6 toluene in hexane, ratio abs. at 269 nm/266 nm

Stray light                                < 0.03 % at 340 nm (NaNO2, ASTM)

                                                < 0.05 % at 220 nm (NaI, ASTM)

                                                < 1 % at 198 nm (KCl, EP)

Wavelength accuracy              < ± 0.5 nm 0.5-second scan (NIST 2034)

                                                < ± 0.2 nm at 486.0 and 656.1 nm

Wavelength reproducibility      < ± 0.02 nm ten consecutive scans (NIST 2034)

Photometric accuracy              < ± 0.005 A at 440.0, 465.0, 546.1, 590.0, and 635.0 nm, 1 A (NIST 930e)

                                                 < ± 0.01 A at 235, 257, 313, 350, 430 nm, (potassium dichromate, EP method)

Photometric noise                    < 0.0002 A sixty 0.5 second scans at 0 A, 500 nm, rms

Photometric stability                 < 0.001 A/h at 0 A, 340 nm, after 1-hour warm up, measured over 1 hour, every 5 seconds, constant ambient temp.

Baseline flatness                      < 0.001 A 0.5-second blank, 0.5-second scan, rms

Typical scan time                      1.5 second full range

Shortest scan time                    0.1 second full range

Time until next scan                  0.1 second full range, 0.1-second scan, up to 150 consecutive scans

Physical dimensions

Height x width x depth              185 x 344 x 560 mm (7.3 x 13.5 x 22.0 inches)

Weight                                      16.5 kg (36.3 lb)

Power requirements

Line voltage                               90–264 V AC

Line frequency                           47–63 Hz

Power consumption                   70 VA typical

Environmental conditions

Operating temperature               0–50 °C (32–122 °F)

Non-operating temperature        -40–70 °C (-4–158 °F)

Humidity                                     < 95 %, at 25–40 °C (77–104 °F)