Toggles through operational parameters (wavelength, absorbance, lamp status).
Use the [Auto-Zero] function to set the current absorbance to zero. 4. Routine Maintenance
Tares the current absorbance output to 0.0000 AU. Use this after the baseline has stabilized with the mobile phase flowing. [LAMP]: Turns the Deuterium ( D2cap D sub 2 ) or Tungsten ( ) lamps ON or OFF manually. [ENTER]: Confirms value entries and menu selections. 4. Standard Operating Procedure (SOP) Startup Sequence Turn on the main power switch of the SPD-20A. Press the [LAMP] key to ignite the D2cap D sub 2
Whether you are setting up a newly acquired system, troubleshooting a baseline issue, or searching for the original user manual specifications, this guide provides a comprehensive overview of how to operate, maintain, and optimize your SPD-20A detector. 1. Technical Specifications at a Glance shimadzu spd20a user manual
The system can be divided into four main functional blocks, each crucial for different aspects of detector operation:
Are you controlling the detector via or the front panel? Share public link
Room temperature fluctuations; mobile phase outgassing; column temperature unstable. Routine Maintenance Tares the current absorbance output to
Whether you are a seasoned chromatographer, a graduate student, or a lab manager training new staff, this guide will walk you through everything you need to know about the official user manual—from where to find it, how to interpret its sections, and how to use it to solve real-world problems.
Insert the new lamp, tighten the screws, and reconnect the power cable. Reset the lamp usage hours in the maintenance menu. Flow Cell Cleaning
Available on the SPD-20AV variant, which allows for simultaneous detection using deuterium and tungsten lamps (190 to 900 nm). 2. Key Components Explained in the Manual [ENTER]: Confirms value entries and menu selections
Is your detector operated or controlled by software (e.g., LabSolutions, Empower)?
The SPD-20A can monitor two different wavelengths simultaneously (e.g., 210 nm and 254 nm) by rapidly alternating the internal mirror mechanisms. Note that using dual-wavelength mode slightly increases baseline noise compared to single-wavelength mode due to the shared sampling time. 5. Maintenance: Lamp and Flow Cell Replacement