Lake Shore 625, User Manual

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Lake Shore Model 625 Superconducting MPS User’s Manual
4-4 Operation
4.4 DISPLAY SETUP
The display of the Model 625 is designed so that all of the pertinent operational information is being presented in a
logical manner. The most important readings, either output current and voltage or calculated magnetic field, are
displayed using large 11
× 15 block characters that can be seen from across the room. The remote voltage sense readings
can be displayed if they are being utilized or they can be removed from the display altogether.
4.4.1 Display Mode
The Model 625 is able to display in two modes, output current mode or magnetic field mode. In output current mode, the
output current and voltage are displayed using large 11
× 15 block characters. In magnet field mode, the calculated
magnet field is displayed using large 11 × 15 block characters. The display mode also changes the way the Output
Setting key works. In current mode, the output setting value will be in units of amps (A) but in field mode, the output
setting value will be in units of field, either kG or T. Refer to Paragraph 4.5 to set the output current.
To configure the display press Display Setup . The first display setup screen appears as a prompt for the display mode.
Display Setup
Select With °®
Display Mode: Current
Use the
s
or
t
key to select the display mode, either Current or Field. 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.
4.4.2 Display Remote Voltage Sense
The Model 625 has the ability to display a remote voltage sense reading. This connection is available on the rear panel of
the instrument. See Paragraph 3.5.2 for information on how to connect the remote voltage sense leads. These leads are
normally used to monitor the voltage at the terminals of the magnet. The remote voltage sense reading can be displayed
or hidden if the remote voltage sense leads are not being used. Note that the remote voltage sense leads will always be
read, only the display function can be turned on or off. The sense voltage cannot be used as the compliance voltage.
To change the remote voltage sense display, continue from the display mode screen or press Display Setup then Enter
until the following display setup screen appears as a prompt for the remote voltage sense display.
Display Setup
Select With °®
Remote Voltage Sense: On
Use the
s
or
t
key to select the remote voltage sense display, either On or Off. Press Enter to accept the new selection
and continue to other display features. Press Escape to cancel the new selection and return to the normal display.