: Turn on the CBM-20A system controller first, then the SPD-20A detector.
Don’t wait for a red "Error" light to appear on the front panel to take action. Shimadzu SPD-20A/20AV UV-VIS Manual | PDF - Scribd shimadzu spd20a user manual better
: Allow the detector at least 30 minutes of warm-up time before starting your run to minimize baseline drift. : Turn on the CBM-20A system controller first,
: Use this to monitor two wavelengths simultaneously. This is particularly useful for peak purity checks or monitoring different classes of compounds in a single injection. 2. Proactive Maintenance & Troubleshooting : Use this to monitor two wavelengths simultaneously
: The "D2" symbol on the display indicates the deuterium lamp is active. In the SPD-20AV model, you can light both the D2 and W lamps simultaneously to ensure seamless high-sensitivity analysis across the entire UV-VIS spectrum.
To ensure the longest possible life for your lamps and the most stable baseline, follow this refined startup sequence: