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9-2. Input Adjustment
“Inp Adj”
Perform scale calibration to improve accuracy which may be degraded by the surrounding environment or over time.
Zero/span adjustment is performed for input (measured) data of each channel. Before performing this adjustment, enable
“Input Correction” according to “8-27. System Settings”. When it is enabled, “Inp Adj” is shown on the menu window (list of
setting items).
(1) Pressing the
key displays the
menu window (list of setting items).
(2) Select
“Inp Adj”.
(3) Move the cursor to the target channel with
the ▲/▼ keys and press the
key.
The cursor does not move to parameters
other than CH.
A tester should be connected to the target
channel beforehand.
(4) The Zero and Span fields show respectively
the range lower limit and range upper limit
set
in “8-2. Input Type Settings”.
[Zero input]
(5) Apply the range lower limit specified in the Zero field
by the tester.
(6) Press the
key to take the input.
[Span input]
(7) Apply the range upper limit specified in the Span field
by the tester.
(8) Press the
key to take the input.
(9)
When zero and span inputs are completed, correction values will be displayed automatically at “A” and “B”. It is also
possible to enter values directly to A (tilt) and B (intercept) using the
keys if you know these values.
(10) After completing the settings of this item, move the cursor to Set .
(11) Press the
key to register the settings. To cancel the settings, press the
key.
Energize the unit for at least 30 minutes before
performing an adjustment.
For instrument safety
Note 2
The temperature of terminal varies when it is exposed
to wind. Attach the terminal cover especially when
using thermocouple input.
Attach terminal cover
Note 1