400 B/W Reflection Densitometer
5-25-2
key in conjunction with FUNCTION (to decrease the value) or
ENTER (to increase). After entering the reference value, or if
you want to exit the reference function at anytime, momentarily
press FUNCTION and the display will return to normal
operation.
To enter a reference value:
Ÿ Press FUNCTION to select RANGE –R. If RANGE appears,
press ZERO to turn Reference on. READ NEW is displayed.
With unit up, depress and hold ZERO until REF is
momentarily displayed. The reference is then displayed. A new
reference can be entered by using the arrow keys. After
reference entry, press FUNCTION to return to normal
operation.
ABSOLUTE RANGE MEASUREMENT
1. Press FUNCTION to select RANGE. If RANGE –R appears,
press ZERO to turn Reference off. READ NEW is displayed.
2. Measure the patch. RANGE X is displayed while measuring,
where X is the installed optics. When the read head is down,
current density value is displayed. In addition, a ∧,∨, or D is
displayed to indicate Dmax, Dmin, or a density within range,
respectively.
3. When the read head is released the range is displayed.
NOTE: Momentary depressions of the ZERO key pages through the
minimum value, maximum value, READ NEW, and the range
value.
