User guide

Quantity One User Guide
8-14
A pop-up box will prompt you to enter a new reference dark exposure time in
seconds. Click on OK to implement your change. The new reference dark will
be created when you acquire your next image.
Note: Because of the high sensitivity of the CCD, fluctuations in background
radiation and/or temperature in the room can affect the level of dark
count. If you feel that radiation/temperature conditions have changed in
the room since your last reference dark was created, use the Reset
Reference button to delete your old reference and create a new one under
current conditions.
None
If you do not want to perform dark subtraction, select None. No dark
exposure will be acquired or subtracted.
8.6.b Live Acquire Mode
Exposure Count
If you are using the Live Acquire function (see previous section), you need to
specify how many intermediate exposures you want to view/save during
acquisition. Enter this number in the Exposure Count field.
The total exposure time will be divided by the number you enter in the
Exposure Count field. If you enter an exposure time of 10 minutes and a count
of 10, you will create 10 intermediate exposures at 1 minute intervals.
Note: Do not enter a count that will result in an intermediate exposure time that
is less than the minimum exposure time for the mode you are in. The
minimum exposure time in trans illuminated mode is 1 second, and the
minimum exposure time in epi illuminated mode is 0.1 second. (Example:
For a trans illuminated application, an exposure time of 20 seconds and
an exposure count of 21 would result in an error.)
Save All Intermediate Images
If Auto Save After Scan is selected (see following section), the Save All
Intermediate Images checkbox will become active. If you select this checkbox,