5
Safety
The Model 3211 is a high-voltage amplifier capa-
ble of putting out 200 V at 120 mA. Because of the
high-voltage capabilities of the amplifier, proper
precautions should be taken to avoid electrical
shock. The unit is equipped with a High Voltage
On/Off switch which acts independently of the
AC power switch. The three high-voltage outputs
(High-voltage Output, -200 V and +200 V) will not
operate unless the front-panel rocker Power switch
is on and the green LED light is indicated on the
High Voltage On/Off switch.
In the typical application, the user may not want
to use the ±200 V outputs. Since these outputs are
turned on when the High-voltage Output is en-
abled, New Focus recommends putting dust covers
over these ±200 V outputs (which are DC current
limited to 2 mA) when they are not being used to
avoid electrical shock.
NOTE:
Your safe and effective use of this product
is of utmost importance to New Focus. Please read
through the entire manual before attempting to
operate the amplifier.
