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General| Spectral Bandwidth | 20 nm |
|---|---|
| Light Source | Tungsten lamp |
| Detector | Silicon photodiode |
| Wavelength Accuracy | ±2 nm |
| Display | Digital display (Spectronic 20+) |
| Power Requirements | 50/60 Hz |
| Sample Holder | Accommodates standard 10 mm square cuvettes |
Details environmental considerations and initial setup procedures for instrument installation.
Provides essential techniques and simple rules for successful spectrophotometer use and sample measurements.
Explains sample measurement procedures for SPECTRONIC® 20/20+ and SPECTRONIC® 20D/20D* models.
Covers concentration modes, factor mode, printing, remote operation, data format, and baud rate settings.
Covers environmental conditions, line voltages, operating and storage environments, altitude, and installation categories.
Details the main operating controls like Power Switch/Zero Control, Wavelength Control, Filter Lever, and Transmittance/Absorbance Control.
Explains the Analog Output Jack and Serial I/O Port for data connection and remote operation.
Covers lamp replacement, cleaning the sample compartment, and calibration checks.
Provides a troubleshooting guide for common instrument problems and outlines the service procedure.
Lists accessories like printers, cables, and service manuals with catalog numbers and descriptions.
Details glassware selection, sampling options, and cell selection charts for compatible cuvettes and test tubes.
Explains how to use the Transmittance and Absorbance modes for measurements and correlation.
Describes the Concentration Mode and the Concentration-Factor-Check Feature for direct concentration readings.
Presents the optical diagram illustrating the light path from the tungsten lamp to the photodetector.
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