Spd20a User Manual | Shimadzu

Ensure instrument is away from drafts. Flush the flow cell with 0.1M Nitric Acid, followed by copious amounts of water. Contaminated flow cell or column bleed.

If the detector will sit idle for more than 48 hours, flush the flow cell with 100% Isopropyl Alcohol (IPA) or Methanol to prevent microbial growth. Deuterium ( D2cap D sub 2 ) Lamp Replacement D2cap D sub 2

Flush the cell with HPLC-grade water for at least 30 minutes. shimadzu spd20a user manual

Regular checks and adjustments of the mirrors and filters, as described in the service manual, ensure peak optical performance. B. Troubleshooting Common Issues

| Symptom | Likely Cause | Manual Section | |------------------------|-------------------------|-----------------------| | Lamp fails to ignite | End of lamp life | 5.2 – Lamp Replacement| | High baseline noise | Air bubbles in cell | 4.3 – Purging the Cell| | Negative peaks | Wavelength wrong / Ref cell dirty | 3.5 – Wavelength Setup | | Leak error persistent | Flow cell window cracked| 5.4 – Cell Replacement| | No communication | IP address conflict | 2.7 – LAN Configuration| Ensure instrument is away from drafts

The unit uses advanced, high-stability mirrors and filters designed for longevity, which the manual describes for proper calibration. 3. Operation and Method Development

: Users emphasize that while the detector can show "D2" on the display when the deuterium lamp is active, a common mistake is not checking the lamp's remaining lifetime before starting long, critical runs. Shimadzu Scientific Instruments Technical Quick Specs If the detector will sit idle for more

: Ensure the "Remote" LED is lit when connected via software like EZStart or LabSolutions. Lamp Control

Keep the unit away from direct sunlight, drafts, and rapid temperature changes.

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