Hitachi TM3000 Instruction Manual page 249

Code Error Message
1209 The electron gun or the high
voltage power supply stopped
due to the failure.
Start up the main unit and
application again.
Contact service if the failure
occurs repeatedly.
1210 The high voltage power supply
is wrong.
Start up the main unit and
application again.
Contact service if the failure
occurs repeatedly.
1211 The electron gun is wrong.
Start up the main unit and
application again.
Contact service if the failure
occurs repeatedly.
Countermeasure
Abnormality on the high voltage power supply
has been detected. It is possible that an
emission current greater than 200 μA (an
overcurrent) was detected.
Click the [OK] button to dismiss the message.
Verify that no particles are present at the tip of
the filament or in the opening on the Wehnelt,
and then 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.
Abnormality on the high voltage power supply
has been detected. 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.
An emission current of 7 µA or more has been
detected at a filament current of 0.0 A.
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.
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