Shimadzu Spd20a User Manual Best – Working & Deluxe

190–700 nm (SPD-20A), 190–900 nm (SPD-20AV).

The system can be divided into four main functional blocks, each crucial for different aspects of detector operation:

Adjust the time constant to optimize the balance between noise reduction and peak shape resolution.

Turn off the detector power, unplug the power cord, and allow the lamp to cool for at least 30 minutes to avoid severe skin burns. shimadzu spd20a user manual

Type your target wavelength (e.g., 254 ) using the numeric keypad.

The SPD-20A allows you to set the wavelength manually via the front keypad or through software (LabSolutions).

The Shimadzu SPD-20A UV-Vis detector is a powerful tool for chromatographic analysis, offering high sensitivity and reliability. By understanding its features, proper operation, and maintenance, users can ensure optimal performance and extend the lifespan of the device. Always refer to the official user manual for detailed instructions and specifications. 190–700 nm (SPD-20A), 190–900 nm (SPD-20AV)

Allow the detector to stabilize for at least 30–60 minutes before running samples.

Shimadzu SPD-20A Service Manual | PDF | Optical Filter | Light

Standard daily operations follow a specific sequence to protect the instrument: Type your target wavelength (e

This section covers the core functions needed for daily operation.

The SPD-20A is a UV-VIS detector engineered for high-performance liquid chromatographs. It is renowned for pushing sensitivity to its limit, achieving a noise level of 0.5 × 10⁻⁵ AU, while offering a wide linearity range of 2.5 AU for accurate quantitation of both major components and trace impurities. A key feature is its ability to perform , allowing simultaneous monitoring at two different wavelengths (e.g., one in the UV and one in the visible range), which is ideal for analyzing complex samples and assessing peak purity.

For advanced electronic diagrams, specific part numbers for ordering gaskets, or complex communication settings (RS-232C vs. Ethernet/CBM parameters), always consult the factory-issued literature. You can find digital copies of the or instructional PDFs by logging into your registered account on the official Shimadzu Excellence in Science portal or contacting your local regional Shimadzu service representative.

Ensure the correct wavelength is selected and the flow cell is clean. Verify that the flow cell path is not obstructed.