Hitachi TM3000 Instruction Manual page 253

Code Error Message
1251 The image observation was
stopped.
Now ventilating the specimen
chamber.
1255 "Freeze" condition had
continued for 5 minutes or more.
The image observation was
stopped.
1256 "SPOT" condition has continued
for 4 minutes.
Change the mode to the other
view modes, otherwise Electron
beam will be turned off in one
minute.
1257 "SPOT" condition had continued
for 5 minutes or more. The
image observation was stopped.
Countermeasure
When [HV not Ready] is detected in the HV-ON
condition, the program turns off the HV and
displays the message. Click the [OK] button to
dismiss the message.
Restart the system in the following procedure.
1. Turn off the PC power.
2. Turn off the main unit power.
3. Restart the PC.
4. Turn on the main unit power and start the
application.
If the same message appears repeatedly after
restart of the system, contact the nearest service
representative.
With the HV-ON, to prevent damage to the
specimen by the electron beam when a still
image is displayed for 5 minutes in the Still
Image display mode, the program turns off the
electron beam and displays the message.
Click the [OK] button to dismiss the message.
After turning on the electron beam, image
observation can be started.
This message appears when 4 minutes have
passed in the "SPOT" mode during electron
beam irradiation (HV-ON status). Because the
specimen must be protected from beam damage,
the electron beam will be turned off in one
minute.
Click the [OK] button to dismiss the message.
After turning on the electron beam, image
observation can be started.
This message appears when 5 minutes have
passed in the "SPOT" mode during electron
beam irradiation (HV-ON status). Because the
specimen must be protected from beam damage,
the electron beam was turned off.
Click the [OK] button to dismiss the message.
After turning on the electron beam, image
observation can be started.
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