Waters ACQUITY UPLC Operator's, Overview And Maintenance Manual page 109

Performance specifications (Continued)
Attribute
b
Noise (3D channel;
10 mm analytical flow
cell)
b
Noise (2D channel;
10 mm analytical flow
cell)
Optical resolution
Order filter
Photodetector
Wavelength accuracy
Wavelength calibration
filter
Wavelength range
Wavelength
repeatability
a. ASTM drift tests require a temperature change of less than 2 °C/hour (3.6 °F/hour) over a one
hour period. Larger ambient changes will result in larger drift. Better drift performance
depends on better control of temperature fluctuations. To realize the highest performance,
minimize the frequency and the amplitude of temperature changes to below 1 °C/hour
(1.8 °F/hour). Turbulences around one minute or less can be ignored.
b. Perform wet testing with water/acetonitrile, 90/10, to minimize the effects of oxygen at
230 nm. Water/methanol, 90/10, can be substituted with appropriate solvent conditioning.
Specification
9 µAU, peak to peak, 1 sec time constant, 30 sec
interval at 230 nm, 3.6 nm digital resolution, 2 Hz,
0.4 mL/min, 10/90 Acetonitrile/water, 120 minute
warm-up time
6 µAU, peak to peak, 2 sec time constant, 30 sec
interval at 230 nm, 3.6 nm digital resolution, 2 Hz,
0.4 mL/min, 10/90 Acetonitrile/water, 120 minute
warm-up time, wavelength compensation 310 nm
to 410 nm
1.2 nm (nominal), full width, half maximum
Fixed, 370 to 800 nm
512 element selective access photodiode array
±1.0 nm
Erbium filter, used at startup or on-demand
190 to 800 nm
±0.1 nm
Specifications 97