CHANGING THE OUTPUT VOLTAGE
RANGE
The 50/750 output voltage can be pro-
grammed for any of the three output voltage
ranges: 0 to +1500 V, 0 to -1500 V, or -750
V to +750 V. The programming is accom-
plished by a programming plug located on
the power supply module. The program-
ming plugs are supplied with the loose-parts
kit that accompanies the instrument. Pro-
gramming plugs for 0 to +1500 V and for 0
to -1500 V are supplied in the loose-parts
kit. The programming plug for -750 V to
+750 V is installed on the power supply
module.
NOTE: Observe the following safety precau-
tions when changing the output voltage
range of the 50/750 unit:
1. Hazardous voltages exist within the
instrument enclosure. Always turn off
the 50/750 and disconnect it from its
power source before attempting to make
any output voltage range wiring
changes. Failure to observe this
precaution could result in electrical
shock.
2. Allow a cool-down period to reduce the
danger of burns from heated parts such
as transistors and heat sinks.
3. Refer all maintenance procedures to
qualified personnel.
Locating the Programming Plug
Remove the power supply module. The
programming connector is a white Molex
connector that is located at the rear of the
power supply board near the gold PC fin-
gers.
Programming the Output Voltage Range
Connect the appropriate programming plug
for the output voltage range required to the
programming connector on the power sup-
ply board.
Install the programming plug so that the
ridge of the plug faces away from the gold
fingers of the power supply board.
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