Mantis 5000 Especificaciones descargar pdf (Pagina 86)

Division of Electrical Science

National Physical Laboratory

Teddington, Middlesex

TW11 OLW

UK.

Troubleshooting

Warning

This instrument contains electrical circuits, devices, and components

operating at dangerous voltages. Contact with these circuits, devices and

components can cause death, serious injury, or painful electrical shock.

To avoid electrical shock operators and other unauthorized personnel must

never remove the main cover. This must be opened only by Varian-trained,

Varian-qualified, or Varian-approved service engineers.

Problem Solution

Measurements on

standard materials are

not producing certified

values.

Ensure that you are referring to the hemispherical reflectance

values of the SRM, not the directional and hemispherical values.

Ensure that your PTFE disks are clean and in good condition.

If you are calibrating the PTFE disk, you need only apply the

necessary correction to your measured values.

The signal-to-noise

ratio is low.

This can be caused by degraded sphere coating, poor detector

performance, the lamps requiring replacement, unclean mirrors

or lens, or bad alignment.

Check the sample port image, and re-align the accessory if

necessary.

Check that the lens and mirrors are clean, and carry out a Zero

%R error check.

A Failure to initialize

instrument error

message occurs.

Error number:

9:9303SEQ:E9303

Check that the:

The DRA is plugged in.

The beams are not blocked.

The DRA is not out of alignment.

A Cary Exception error

occurs.

An ADL command is necessary to clear this error. Click here to

view/print a PDF instructing you how to use this ADL.

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