EPM/SMS MANUAL
18
118026-001 REV K
Chapter 6
M
AINTENANCE
his section describes periodic servicing and
performance testing procedures.
THIS POWER SUPPLY GENERATES VOLTAGES
THAT ARE DANGEROUS AND MAY BE FATAL.
OBSERVE EXTREME CAUTION WHEN WORKING
WITH HIGH VOLTAGE.
6.1 Periodic Servicing
The EPM/SMS series does not require periodic
maintenance or servicing.
6.2 Performance Test
HIGH VOLTAGE IS DANGEROUS.
ONLY QUALIFIED PERSONNEL SHOULD
PERFORM THESE TESTS
.
High voltage test procedures are described in 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 measurements 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.
T
WARNING
WARNING
