69
6 Maintenance and Troubleshooting
No. 99MAM029A
Error display
(symptom)
Types of er-
rors
Causes Handling method
"Û UNIT ERROR Û"
is printed out, and
the [-NG] and [+NG]
LEDs are blinking.
Difference in
units.
The units of the
input data are dif-
ferent.
y This message is printed
when the unit differs from
that of the data input rst.
Input the data with the same
unit as that of the data input
rst.
y A unit that differs from that
of the set limit data is input.
Input the data with the same
unit as that of the limit data.
"5.2 Various Parameter
Settings and Setting Items" on
page 63
"Û POINT ERROR
Û" is printed out,
and the [-NG] and
[+NG]
LEDs are blinking.
Decimal point
position error
The position of the
decimal point of
the input data are
different.
y This message is printed
when the position of the
decimal point differs from
that of the data input rst.
Input the data with the same
decimal point position as
that of the data input rst.
y A decimal point position that
differs from that of the set
limit data is input. Input the
data with the same decimal
point position as that of the
limit data.
The buzzer sounds
twice each time the
data are input.
Overow alarm
Overow of the
measurement data
storage is about to
happen.
Stop the measurement ahead
of time to perform the statis-
tical calculation. Then, delete
the data pressing
CLEAR
.
The buzzer sounds
during logging.
Alarm for num-
ber of log data
The number of log
data entries ex-
ceeds 950.
Up to 1,000 data entries can
be logged. Perform the output
of the log data.
"3.4 Logging of Measure-
ment Data and Printing/Output
of Log Data" on page 35
"Û
BACKUP BAT-
TERY LOW
Û
" is
printed.
Remaining level
drop of backup
batteries
Remaining level of
the backup batter-
ies has dropped.
The time for replacement of
backup batteries mounted
to the circuit board inside
the product is approaching.
Please contact Mitutoyo ser-
vice representative. Noted
that the battery life is about 10
years.
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