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Figure 3-4 Numeric Key Area
Numeric (character) keys are used to input the values while setting frequency, marker, distance, amplitude and other parameters, and
then press the corresponding unit key or Enter key to complete the input. There are 2 or 3 characters printed on the upper left corner of
each numerical key and when the user intends to input characters, press them in quick succession to switch between numbers and
characters. The correspondence relationship between entered character and press times is as shown below in Table 3-1:
Table 3-1 Instruction to Keys on the Keyboard
Press Times
Figure Key
1
2
3
4
1
1
A
B
C
2
2
D
E
F
3
3
G
H
I
4
4
J
K
L
5
5
M
N
O
6
6
P
Q
R
7
7
S
T
U
8
8
V
W
X
9
9
Y
Z
9
0
0
【
•
】
Decimal Point Key: Used to enter the decimals points when entering a decimal value with decimal places; used to enter the
character “.” When entering characters.
【
+/-
】
Plus/Minus Sign: Used to trigger a positive or negative value input before figure input; used to enter the characters “+” or “-” when
entering characters.
3.1.4.
Other Keys
Figure 3-5 Other Keys
【
↑
】
&
【
↓
】
: Mean increase and decrease respectively and used to control step or select current options.
