3-20
6. Press
[ENTER]
key to save the current input limit value and return to the main menu.
7. Repeat step 3 to 6 to select the percent tolerance mode(PER) or absolute tolerance
mode(ABS) .
8. Press
[
▼
]
key, the current nominal value will be displayed in the primary parameter
display area as shown in figure 3-8
Figure 3-8 Nominal value setup
9. If no change is required with the current nominal value, press
[
▲
]
or
[
▼
]
key to input
other high/low limits. Press
[ENTER]
key to enter the data input status, the first left digit
of the nominal value displayed in the primary display area will be flashing.
10. Press
[
▲
]
or
[
▼
]
key to input 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. If the current flashing digit is
the first left digit, “
-
” can also be inputted.
11. Press
[
▲
]
or
[
▼
]
key to select the digit, decimal or unit to be modified. The selected
digit, decimal or unit will be flashing.
12. Press [
ESC
] key to return to the main menu without changing the previous nominal
value.
13. Press
[ENTER]
key to save the current input nominal value, and return to the main
menu.
14. Repeat step 8 to 13 to input the value of P1L,P1H,P2L,P2H,P3L,P3H,SEC L and SEC
H.
15. After all the sorting limits are inputted, press [
ESC
] key to return to the measurement
status.
3.3.3 Primary Parameter Display Mode
U2810D provides three kinds of display modes for the primary parameter:
DIR
:
Direct reading display mode
ABS
⊿
: Absolute deviation display mode
%
⊿
:
Percent deviation display mode
ABS
⊿
deviation display mode:
The difference between the measured value of the DUT and a previously stored
reference value are displayed. The formula used to calculate the deviation is as follows.
ABS = X
⊿
– Y
Where, X: The measured value of DUT
Y: The stored reference value