9-2
9-2 Zero and span adjustment of measured values [INPUT ADJ.]
Adjust zero and span if the accuracy is out of the specified value due to an surrounding environment, a secular
change, or other causes as calibration results. This zero and span adjustment applies to data display and digital
recording to the range setting every channel.
Refer to 8-16. System setting, and enable [Permit input correction setting] beforehand.
(Caution 1)
Continue feeding power to the unit for
longer than 30 minutes for the purpose of
stabilizing the unit before starting the
adjustment.
(Caution 2)
A wind causes fluctuations of the terminal
temperature. Mount the terminal cover in
case of thermocouple input, in particular.
(Caution 3)
If analog recording is deviated, adjust zero
and span of analog recording.
(Caution 4)
A range setting-free channel is not selectable.
①
Select the setting display mode by pressing Menu key.
A window opens to display a setting items table.
②
Move the cursor by
◄
•
►
•
▲
•
▼
keys and select an item to be set.
③
Select INPUT ADJ.
④
Enter the setting table display (collective 12 points) screen by
pressing Enter key. (For the setting table display (collective 12
points) screen, refer to
⑥
.)
⑤
For stopping the setting, the screen returns to the last once, each
time Esc key is pressed once.
⑥
The cursor moves to a desired channel number to be set by
▲
•
▼
keys. The cursor does not shift to any item other than CH No.
Connect a tester to the channel to be set.
⑦
Select a channel to be set and press Enter key.
(For the setting parameter entry screen, refer to
⑧
.)
⑧
The value displayed on the zero side shows the lower-limit value
of the range being set by CH PARAM. A higher -limit value of the
range is also displayed on the span side.
Zero adjustment
1. Apply the range lower-limit value being displayed on the zero side
from the tester.
2. Make sure that the cursor is present on [Zero input] and press
Enter key.
Span adjustment
1. Apply the range higher-limit value being displayed on the span
side from the tester.
2. Make sure that the cursor is present on [Span input] and press
Enter key.
After zero and span have been input, correction values [a], [b] are
developed automatically.
※
) If a (tilting) and b (intercept) are known in advance, they can
input directly by numeric keys.
⑧
After the end of setting on this screen, bring the cursor to
Set .
⑨
Terminate the setting (change, addition) by pressing Enter key.
Start
Menu key
Set?
①
Esc key
NO
⑤
End
YES
Setting (change,
addition) by using
◄
•
►
keys.
⑥
Selection of setting items
by
◄
•
►
•
▲
•
▼
keys
②
Enter key
④
Setting parameter display
Enter key
Setting end
⑦
INPUT
③
Содержание LE5100
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