Fluke Biomedical 07-444 - Manual (Page 30)

Nuclear Associates 07-444
Operators Manual
4-16
11. To review the chart file values, press or to scroll through the available selections until Enter New
Params is displayed. Press ENTER. Continue to press ENTER to review each items baseline and
deviation.
Clear Chart Files
This procedure allows the user to selectively clear a particular chart file. This feature is useful when a
new baseline is established and the file contains outdated measurements.
Follow the steps under chart file setup before proceeding.
1. Press or to scroll through the selected file setup functions until Clear Chart File is displayed.
Press ENTER.
2. Hold ENTER to Clear... is displayed. Press and hold ENTER to clear the selected file. Press or
to abort the clear command.
3. Clearing Data... is displayed. Upon completion Data Cleared is displayed.
4. Exit File XX is displayed. Press ENTER to exit the chart file.
Set-Up And Use With X-Rite Step Wedges
Little Genius may be used to evaluate test films generated by X-Rite sensitometers. A specific technique
is required to properly scan these types of films. Little Genius can resolve images over a wide range of
exposures and scanning rates.
There are two types of X-Rite sensitometers that produce step wedges that can be read by the Little
Genius. Although the image produced by both units is nearly identical, the placement of the image on the
test film is different. One unit provides an image with the steps centered at approximately 7 mm from the
edge of the film, while the other unit places the image at 18 mm from the edge of the film. Two film
guides are supplied with Little Genius, one for the 7 mm type and another for the 18 mm type. The
standard film guide (18 mm type) is also used for the Nuclear Associates type step wedges (see Figure 4-
5).
Figure 4-5. Standard Film Guide
7 mm
Film
Edge
18 mm
Film
Edge
a b
a ) X-Rite Model 334
b ) X-Rite Model 383 & 384 & Victoreen Sensitometers