Instruction manual

361T
DENSITOMETER
3-1
3. Measurement Procedures
Density Function
The DEN function allows you to take density and density difference
measurements. The procedure for each of these are as follow.
DENSITY MEASUREMENT
1. Repeatedly depress [
FUNCTION] key until "DEN" is displayed.
Previous density is displayed.
2. Select color (ortho or ultraviolet).
3. Measure film. Density value is displayed.
DENSITY DIFFERENCE MEASUREMENT
1. Repeatedly depress [
FUNCTION] key until "DEN" is displayed.
Previous density is displayed.
2. Select color (ortho or ultraviolet).
3. Enter a reference value. Refer to "Reference and Base Entry" in
Chapter 2 for entry of reference via the keyboard, or via a
measurement.
4. Measure film that is to be compared. Density difference value is
displayed.
+DOT Function
The +DOT function allows positive dot measurements with zeroing to a
Base Dot value. +Dot can be calculated for a Base equal to 0% Dot or
can be adjusted to a value equal to a known Dot size (ex. 3%). +DOT is
normally used for positive films.
+DOT MEASUREMENT
1. Repeatedly depress [
FUNCTION] until "+DOT" is displayed.
Previous Dot value is displayed.
2. Select color (ortho or ultraviolet).
3. Zero unit to a Base Dot or Base Fog of film, by pressing [
ZERO]
while measuring this area of the film.
4. Measure the Dot area on the film. +Dot value is displayed.