The Olis S-16 Conversion

Procedures for upgrading to the S-16 ScanDisk

The latest improvement to the Olis RSM 1000 is the Olis S-16 ScanDisk. The original spinning ScanDisk uses a single synchronization pulse per revolution of the disk to adjust for wheel speed variations. The S-16 ScanDisk obtains a sync pulse at each slit, dramatically decreasing wheel speed variations and sinewave noise during data collection. Since each slit produces its own sync pulse, the correction for wheel speed variations occurs 16 times per revolution of the ScanDisk. The S-16 ScanDisk provides four-fold better wavelength accuracy during rapid-scanning.

For each original RSM system, the conversion will require modification of the ScanDisk, monochromator card assembly, internal monochromator cable, and control boxes. All cables connecting the computer to the control box and the control box to the RSM will be inspected, tested, and labeled to correspond to the S-16 control box.

Overview

The upgrade process can occur in one of two ways. For RSM owners who feel comfortable getting inside the RSM to remove the internal components required for conversion, we provide illustrated instructions for removing the original components and installing the upgraded components. RSM owners who do not feel comfortable removing internal components will need to remove only the external components required for conversion; Olis will modify the external components and then come to your lab to install the upgraded external components and upgrade the internal components. In either case, the upgrade process will require at least two weeks after receipt of your original components (either external only or both internal and external). For conversions involving on-site procedures, an Olis technician will call to schedule a site visit at your earliest convenience after the internal components have been received and upgraded at our facility.

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