Spellman DF3 Series, Инструкция по эксплуатации

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DF3/FF3 MANUAL 23 118018-001
Rev E
6 MAINTENANCE
This section describes periodic servicing and
performance testing procedures.
WARNING
:
THIS POWER SUPPLY GENERATES
VOLTAGES THAT ARE DANGEROUS
AND MAY BE FATAL. OBSERVE
EXTREME CAUTION WHEN
WORKING WITH HIGH VOLTAGE.
6.1 PERIODIC SERVICING
Approximately once a year, (more often in high
dust environments), disconnect the power to the
unit and remove the top cover. Use compressed
air to blow dust out of the inside of the unit.
Avoid touching or handling the high voltage
assembly. Be sure that the fans are not obstructed
and spin freely. The fans have sealed bearings
and do not need lubrication. Be sure to replace
the top cover before operating for proper
cooling.
6.2 PERFORMANCE TEST
WARNING:
HIGH VOLTAGE IS DANGEROUS.
Only
qualified personnel should perform these tests.
High voltage test procedures are described in
Spellman Bulletin STP-783, Standard Test
Procedures for High Voltage Power Supplies.
Copies can be obtained from the Spellman
Customer Service Department. Test equipment,
including an oscilloscope, a high impedance
voltmeter, and a high voltage divider such as the
Spellman HVD-100 or HVD-200, is needed for
performance tests. All test components must be
rated for operating voltage.
6.3 HIGH VOLTAGE
DIVIDERS
High voltage dividers for precise measurement
of output voltage with an accuracy up to 0.1%
are available from Spellman. The HVD-100 is
used for voltages up to 100kV. The HVD-200
measures up to 200kV. The Spellman divider is
designed for use with differential voltmeters or
high impedance digital voltmeters. The high
input impedance is ideal for measuring high
voltage low current sources, which would be
overloaded by traditional lower impedance
dividers.