Hitachi TM3030 Plus Instruction Manual page 188

Figure 4.3.12-4 Observation Condition Settings (5 kV - High Mag.)
The features of the observation condition of [5kV] are explained below.
Electron beam focusing
Image contrast
Image quality
Charge-up phenomenon
Sample damage
Figure 4.3.12-5 Features of the observation condition [5kV]
2. 15 kV
This observation condition tends to produce sharply defined images, suitable for
high-magnification observation.
When [15 kV] is selected, the [N] mark is displayed in the information area located in the
lower right part of the image observation area. (see 4.3.2)
Figure 4.3.12-6 Observation Condition Settings (15 kV)
3. EDX
This observation condition is well-suited for observing specimens that do not produce
adequate brightness / contrast levels. Select [EDX] for EDX analysis in addition to
general sample observation.
When [EDX] is selected, the [H] mark is displayed in the information area located in the
lower right part of the image observation area. (see 4.3.2)
Figure 4.3.12-7 Observation Condition Settings (EDX)
Low Mag. Middle Mag.
Coarse
High
Fine
High
High
4 - 69
High Mag.
Fine
Low
Coarse
Low
Low