Mantis 5000 Especificaciones descargar pdf (Pagina 54)

7. Suspend white light operations and remove the blocking device from the reference

beam. The accessory is aligned for polarizer operations.

The base mount can remain installed in the accessory when the polarizer is not being

used. If adjustment to the sample beam alignment is required, an alignment check should

be performed whenever the polarizer is removed.

Note

The polarizer is an attenuation device and may reduce significantly the signal-to-

noise ratio of the accessory during use.

Operation

Samples can be mounted at the transmission or reflectance ports. At the reference port,

attenuators may be mounted.

Routine DRA installation

The accessory must be installed in the sample compartment and the DRA cable

connected before turning the instrument power switch on. During initialization, the

spectrophotometer will adjust instrument radiation levels appropriate to the high

attenuation characteristics of the DRA, making the necessary gain adjustments to the

detector circuitry. Follow these instruction to install and configure for routine DRA

operation:

1. Turn the instrument off. Remove any cell holders or other accessories from the

instrument sample compartment.

Caution

The spectrophotometer must be turned OFF before plugging in the DRA, or serious

damage may result.

2. Slide back the sample compartment lid and remove the compartment front panel.

3. Remove the accessory from the wooden container by lifting the accessory by the "T"

handle and the corner marked "Lift Here".

4. Slide the DRA into the sample compartment at a 20° angle. Take care to align the

metal edges of the DRA with the guide tabs on the edge of the instrument sample

compartment. This will correctly align and engage the rear lockdown pins into the the

sample compartment floor.

5. Place the front lockdown pin into the hole in the DRA floor next to the "T" handle.

6. Gently maneuver the DRA until the pin falls into place.

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Mantis 5000 Especificaciones Pagina 54