Section 2: General operation
Model DMM7510 7½ Digit Graphical Sampling Multimeter Reference Manual
2-92
DMM7510-901-01 Rev. B / May 2015
To generate an audible tone from the SCPI remote interface:
:SYSTem:BEEPer <frequency, time>
Where
frequency
is the frequency of the sound in Hz (20 to 20,000) and
time
is the length of the
sound in seconds.
To generate an audible tone from the TSP command interface:
Send the following command:
beeper.beep(
duration, frequency
)
Where
duration
is the length of the sound in seconds and
frequency
is the frequency of the
sound in Hz (20 to 20,000).
Test connections
To prevent electric shock, test connections must be configured such that the user cannot
come in contact with test leads or any device under test (DUT) that is in contact with the
conductors. It is good practice to disconnect DUTs from the instrument before powering the
instrument. Safe installation requires proper shields, barriers, and grounding to prevent
contact with test leads.
There is no internal connection between protective earth (safety ground) and the LO
terminals of the Model DMM7510. Therefore, hazardous voltages (more than 30 V
rms
) can
appear on LO terminals. This can occur when the instrument is operating in any mode. To
prevent hazardous voltage from appearing on the LO terminals, connect the LO terminal to
protective earth if your application allows it. You can connect the LO terminal to the chassis
ground terminal on the front panel or the chassis ground screw terminal on the rear panel.
Note that the front-panel terminals are isolated from the rear-panel terminals. Therefore, if
you are using the front-panel terminals, ground to the front-panel LO terminal. If using the
rear-panel terminals, ground to the rear panel LO terminal.
Be aware that hazardous voltages can appear on the LO terminals even if the terminals are
not presently selected. The TERMINALS FRONT/REAR switch selects the active terminals
for the measurement. It does not disconnect the terminals.
The maximum input voltage between INPUT HI and INPUT LO is 1000 V
peak
. Exceeding this
value may create a shock hazard.
The maximum common-mode voltage (the voltage between INPUT LO and chassis ground) is
500 V
peak
. Exceeding this value may cause a breakdown in insulation that can create a shock
hazard.
You can make test connections to the Model DMM7510 from the rear or front panel of the instrument.
