: Check if the lamp is ignited. If not, see ERR D2 LAMP . If the lamp is on, the issue may be in the signal processing, the photomultiplier tube, or a communication failure.
Understanding the core specifications of the SPD-20A helps optimize chromatographic methods and ensure data integrity. Deuterium ( D2cap D sub 2 ) lamp for UV range; Tungsten ( ) lamp for visible range (on the SPD-20AV model). Wavelength Range: 190 nm to 700 nm. Spectral Bandwidth: 8 nm. Wavelength Accuracy: ±1plus or minus 1 Noise Level: AU (under specified conditions). Drift: Principle of Operation
Connect the OUTLET tubing from the upper port of the flow cell to the waste container or a subsequent detector (e.g., mass spectrometer or refractive index detector). shimadzu spd20a user manual
While there isn't a single "consumer review" in the traditional sense for a technical manual, experienced analysts and service technicians frequently highlight several critical operational and maintenance insights for the Shimadzu SPD-20A Prominence UV-VIS Detector that expand upon the standard Instruction Manual Key User Insights & Performance Highlights Sensitivity & Noise Floor : Users frequently praise the detector's low noise levels (
: This is often related to the mobile phase or flow path, not the detector itself. Investigation : Ensure the pump pressure is stable. Degas the mobile phase to remove bubbles. Check the flow cell for bubbles or contamination. Verify the column and guard column are not dirty. : Check if the lamp is ignited
: 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
Shimadzu SPD-20A UV-Vis detector Go to product viewer dialog for this item. Understanding the core specifications of the SPD-20A helps
The Shimadzu SPD-20A user manual provides troubleshooting guides for common issues, including:
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