Shimadzu Spd20a User Manual (2025)

If your SPD-20A is connected via CBM-20A to LabSolutions, the software includes a "Module Help" menu. Click on the SPD-20A icon → "Manual" to open context-sensitive pages for error codes.

The appropriate lamp must be selected for the measurement wavelength:

The user manual outlines specific procedures for setting up the detector for daily operation via HPLC software (such as LabSolutions or EZStart). A. Power-On and Initial Check Turn on the main power switches for all HPLC components. Launch the chromatography software (e.g., EZStart 7.4).

Sets the filter response time (lower value = faster response; higher = less noise). Lamp Control: Select deuterium ( D2cap D sub 2 ) or tungsten (W) lamp. 4. Maintenance and Best Practices shimadzu spd20a user manual

The SPD-20A balances high sensitivity with long-term stability. Understanding its core specifications helps optimize performance. Deuterium ( D2cap D sub 2 Wavelength Range: 190 nm to 700 nm. Spectral Bandwidth: 8 nm. Wavelength Accuracy: ±1 nm. Wavelength Reproducibility: ±0.1 nm. Noise Level: AU (under specified conditions). Drift: AU/hour (under specified conditions). 2. Installation and Initial Setup

Allows for the simultaneous detection of compounds at two different wavelengths, optimizing sensitivity for components with vastly different absorption spectra. Lamp Management The manual emphasizes proper lamp management, including:

Choose the appropriate wavelength (190-700 nm for 20A) based on the absorption spectrum of the analyte. If your SPD-20A is connected via CBM-20A to

: Details technical adjustments for optical and electrical systems, including mirror and filter calibration. Technical Specification Sheets

This can be used as a product description, a training guide summary, or a technical documentation overview.

(Interchangeable units):

Note: Using dual-wavelength mode slightly increases baseline noise compared to single-wavelength mode due to the rapid switching mechanism of the internal mirror. Adjust your method sensitivity requirements accordingly. 4. Routine Maintenance Procedures

Before diving into procedures, here are the core specifications you will consistently reference in the :

Never look directly into the flow cell or light source when the lamp is on. Sets the filter response time (lower value =