GX-A/GF-A Maintenance manual
Page 48
6.13
Method of identifying defect location (Electrical part or Mechanical part)
In this chapter it explains about how easily you can check the cause of malfunction in the
mechanical parts or in the electrical part, without disassembling the balance. It is advantageous
if the defect is
“unstable data” or “repeatability error”.
1. Method of identifying defects in the internal offset mode
* If i) is OK, the electrical part is not defective. In this case, it is likely that the cause is
in the mechanical part.
* If i) is NG, the electrical part is defective. It is necessary to check or replace the
electrical part especially analog board.
i)
Operation confirmation for the electrical portion of the weight A/D part by itself
Step 1. Display the data adjustment mode
d-d5p
after getting into check mode shown
on page 28,29.
Step 2. Press the PRINT key.
XXXX
is displayed. (D0 data mode-weight A/D count )
Step 3. Press and hold RE-ZERO key and press MODE key.
“
-1-
“ is displayed on the
upper left display in offset mode (seven segments). With a same key operation, the
mode can be moved to
“
-2-
“, “
-3
-
”. See the example at the bottom of this page.
(1) In the offset 2 (
-2-
), verify that the data is within 2300-2700.
(2) In the offset 3 (
-3-
), verify that the data is within 4800-5200
Step 4. Press the SAMPLE key.
XXXXXX
is displayed. (D1 display-Internal weight
data)
Step 5. Press and hold RE-ZERO key and press MODE key.
“
-1-
“ is displayed on the
upper left display in offset mode (seven segments). With the same key operation,
the mode can be moved to
“
-2-
“, “
-3
-
”. See the example at the bottom of this page.
(1) In the offset 3 (
-3-
), verify that the data is within 25000000-29000000, and
the data
of dispersion is within 15 counts (MAX-MIN) in 5 seconds.
Offset mode (Weight A/D)
Weight A/D input
Dot segments
on the upper left
D0 data
D1 data
Offset 1 only
-1-
Approx.0
Approx.11000
Offset 2 only
-2-
Approx.2500
Approx.13700000
Offset 3 only
-3-
Approx.5000
Approx.27500000
Ordinary state
(Connecting to the
mechanical part)
No display
Weight A/D count
Internal weight data D1
Example) In the D0 data mode, to display
“
-2-
”.
-2-
2502
D
0
Summary of Contents for GX-A Series
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