Lake Shore Model 475 Gaussmeter User’s Manual
Operation
4-29
If the Manual mode is selected, the manual entry screen appears following the analog mode setting screen. The setting
range is from 0% to 100% (if unipolar) or from -100% to 100% (if bipolar), with a setting resolution of 0.001%. A value
of +100% represents an output of 10 V and a value of -100% represents an output of -10V. The manual entry screen
appears as a prompt for setting the Analog Output 3 voltage.
Ent er f or Anal og
Ma n +1 0 . 0 0 0 %
Use the data entry keys to enter the manual output value between 0 and 100 (unipolar) or -100 and 100 (bipolar). Press
Enter
to accept the new value and return to the normal display. Press
Escape
to restart the setting sequence and enter a
new value. Press
Escape
again to cancel the sequence and return to the normal display.
If the Control mode is selected, Analog Output 3 is configured to operate with the field control algorithm of the Model
475. Refer to the
Control
key description for configuring the field control parameters, Paragraph 5.2.
4.12.2
Analog Output 3 Polarity
The Analog Output 3 can be configured to operate either in a unipolar fashion (output from 0 volts to +10 volts) or in a
bipolar fashion (output from -10 volts to +10 volts).
To configure the Analog Output 3 polarity,
press and hold
the
Analog
key for approximately 4 seconds. The following
screen appears as a prompt for configuring the polarity.
Sel ec t Wi t h ° ®
An a l o g Ou t Un i p o l a r
Use the
s
or
t
key to select from Unipolar or Bipolar. Press
Enter
to accept the new selection and continue to the next
setting screen. Press
Escape
to cancel the new selection and return to the normal display.
4.12.3
Analog Output 3 Volt limit
In some instances, it may be desirable to limit the maximum voltage of the Analog Output 3. This may be useful for
protecting sensitive power supplies, especially during field control.
The next analog output setup screen appears as a prompt for configuring the voltage limit.
Sel ec t Wi t h ° ®
An a l o g L i mi t 1 0 V
Use the
s
or
t
key to select from 1 volt through 10 volts. Press
Enter
to accept the new selection and return to the
normal display. Press
Escape
to cancel the new selection and return to the normal display.
