4 DESCRIPTION OF CONTROLS
EM210F-1
4-13
4.2.6c
Control panel P3
This is a power supply for the 150 L ion pump (an optional attachment used for the
microscope column evacuation).
①
②
③
④
Fig. 4.10 Control panel P3
①
Meter
Displays the value selected with the METER RANGE knob (P3-
④
).
②
POWER lamp
Indicates when lit, that the POWER switch (P3-
③
) is at the on position.
③
POWER switch
Setting this to the upper position turns on this power supply.
④
METER RANGE knob
Used to select the value to be displayed on the meter (P3-
①
).
4.2.6d Control panel P4
A FILAMENT and a POWER hour meters are mounted on this panel. The FILAMENT
displays the total period of time in which the filament is being heated. The POWER
displays the total period if time in which the power of the instrument is being turned on.
4.2.6e
Control panel P5
A circuit breaker is mounted on this panel. The breaker should be turned on usually.