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25
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Troubleshooting
1. Load cell
If a load exceeding the rated value is imposed on the load cell, or a horizontal load is
imposed on it, it will be permanently distorted, and one or more of the symptoms listed
below will occur.
●
The digital load display will read "
". ---
This probably means that load cell is damaged and
should be replaced.
(
It displays "
", even when a small load is applied.
)
●
The displayed load value is extremely low. ---
The load cell may be distorted toward the negative.
●
The display seems unable to show values beyond a certain level. ---
The load cell may be distorted
toward the positive.
●
The display does not read zero, even when you press the reset button.
If the load cell is damaged, we will repair it, or we will replace it at cost shown in the table below. In this
case, we will also need you to send your measurement device in order to calibrate the two items at our
factory.
Load cell rating
Replacement and calibration fee
NOTE:
The units shown in curly
3kN｛306kgf｝
¥ 1 3 0 , 0 0 0 .-
brackets "
{ }
" are for reference purposes
30kN｛3060kgf｝
¥ 1 3 0 , 0 0 0 .-
only.
10kN｛1020kgf｝
¥ 1 3 0 , 0 0 0 .-
0.2kN｛20kgf｝
¥ 1 3 0 , 0 0 0 .-
100kN｛10.2tf｝
¥ 1 8 0 , 0 0 0 .-
200kN｛20.4tf｝
¥ 2 2 0 , 0 0 0 .-
2. Measurement device
●
The digital display doesn't work properly. ---
Some LEDs may be faulty.
You can find faulty LEDs during the ROM check procedure when turning ON the power. At that time the
device will light all the LED segments for checking.
●
If the contents of the EEPROM have been damaged by electrical noise, the display will show one of
the following displays while checking the ROM, depending on the cause.
a
Display:
The digital load display reads "
" or "
".
Problem:
The memory contents have been damaged.
Remedy :
Please send us the device as soon as possible. We will examine the memory and correct it.
b
Display:
The digital load display reads "
Ｘ
", the lower-limit display reads "
", and
all of the decimal points flash, then the character location marked "X" above will contain a
pair limit number from
to
.
Problem:
The upper or lower limit data for pair limit "X" may be wrong. These values may be
changed to "1000"
(
upper limit
)
or "500"
(
lower limit
)
, which are the default values
programmed into the microcomputer.
Remedy:
Enter the limit values again using the membrane switches. If you do not, the system cannot
operate properly.
c
Display:
The digital load display reads "
", the lower-limit display reads "
", and all
of the decimal points flash.
Problem:
Internal calibration data may be broken.
Remedy:
Please send us both the measurement device and the load cell. We will recalibrate and send
Summary of Contents for CHECK MAN CM-5
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