
D00951 Revision B - Page 3
3101 Mt Carmel Ave. Glenside, PA
I. IMPORTANT SAFETY INFORMATION AND INSTRUCTIONS
The equipment described in this Manual is designed and manufactured to operate according to
defined procedures and within defined design limits. Any misuse may result in electric shock, fire,
injury, or damage. For safe operation, the following rules must be observed for installation, use,
and maintenance. Read the following safety instructions before operating the instrument.
POWER
POWER CORD: Use only the power cord specified for this equipment and certified for the
country of use. If the power (mains) plug is replaced, follow the wiring connections specified
for the country of use. When installing or removing the power plug hold the plug, not the
cord.
The power cord provided is equipped with a 3-prong grounded plug (a plug with a third
grounding pin). This is both a safety feature to avoid electrical shock and a requirement for
correct equipment operation. If the outlet to be used does not accommodate the 3-prong plug,
either change the outlet or use a grounding adapter.
FUSES: The Model 9910 utilizes switching power supplies that operate over the voltage range
of 90-260VAC, 50/60Hz. These units incorporate resettable fuses. To reset the instrument
must be powered down for 10 seconds before turning the power back on.
POWER LINE VOLTAGE (MAINS): If the line (mains) voltage is changed or isolated by an
autotransformer the common terminal must be connected to the ground (earth) terminal of the
power source.
OPERATION CAUTION!
THE MODEL 9910 DISCHARGE SIMULATOR IS CAPABLE OF PRODUCING HIGH
VOLTAGE OUTPUT PULSES UP TO 8,250 VOLTS AT A STORED ENERGY LEVEL OF
ABOUT 75x10-4 JOULES. WHEN IT IS NECESSARY TO HANDLE THE DUT OR ANY OF
THE OUTPUT INTERCONNECT TEST LEADS, IT IS RECOMMENDED THAT THE HIGH
VOLTAGE ON/OFF SWITCH BE PLACED IN THE OFF POSITION. THIS IS INDICATED BY
“VOLTAGE OFF” BEING DISPLAYED AND THE RED LED ABOVE THE HV ON/OFF
BUTTON TURNED OFF.