User's Manual

400 B/W Reflection Densitometer
3-43-4
MISCELLANEOUS DISPLAY MESSAGES
During normal operation, some additional display messages may
appear. Following are these messages, what these messages mean
and what action must be taken when they appear.
BAT LO indicates that the batteries are getting low and will soon
need to be charged. BAT LO only appears while the measurement is
in progress. Once BAT LO is displayed, you will have approximately
100-200 measurements remaining before charging is required.
CHARGE indicates that the batteries are too low to operate the unit
and must be recharged. CHARGE does not appear until you begin
the recharge cycle. Thereafter, the unit will be functional and all
previous data will be accessible.
D TOO HI indicates density value measured is too high. Make sure
you are measuring the right color for the measurement sequence and
try again.
D TOO LO indicates density value measured is too low. Make sure
you are measuring the right color for the measurement sequence and
try again.
If D TOO HIGH or D TOO LO continues to appear, re-calibrate the
instrument using long calibration (see Chapter 2).
INVALID When the unit is not held down long enough during a
measurement, INVALID will display.
LAMP FAIL Measurement lamp has failed. The lamp should be
examined and replaced. When this message occurs, you can get out
of this condition (after replacing lamp) by pressing DEN/DOT then
COLOR then DEN/DOT or waiting until unit powers down.
MEM LOST (Displayed only during power-up) Internal lithium
battery is failing. Intermittent connection on Ni-Cad batteries.
NEED CAL Calibration has been lost.
PAPER Indicates that the next measurement should be paper. If
you do not measure paper, PAPER ? Z will be displayed during the
measurement.
PAPER ? Z Displayed during measurement. At this point the 400
is asking if this is a new paper value. If it is a new paper value,