: Always check the leak sensor at the bottom of the unit. If a leak is detected, the system will automatically stop the pump to prevent damage. Safety Precautions
The detector communicates via the CBM-20A communication bus module.
: Ensure all buffers and solvents are filtered ( or finer) to prevent clogging the delicate flow cell. D2cap D sub 2
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 shimadzu spd20a user manual
) solution, followed by a thorough flush with water until the pH returns to neutral. Never use hydrochloric acid. 5. Troubleshooting Common Issues Potential Cause Recommended Action Air bubble trapped in the flow cell.
The standard flow cell is temperature-controlled to prevent baseline drift from room temperature changes.
Usually resolved by allowing a longer warm-up time or checking for temperature stability in the room. The Shimadzu SPD-20A : Always check the leak sensor at the bottom of the unit
Unplug the lamp connector cable. Loosen the two fixing screws holding the lamp assembly in place and gently pull the lamp straight out.
Ensure the temperature-controlled cell is functioning properly and that the laboratory environment is stable.
The front panel allows for direct control without PC software configuration. : Ensure all buffers and solvents are filtered
: Switch on the main power at the bottom left of the unit.
Proper installation is crucial for safety and performance.