2: Front-panel overview Model 2450 SourceMeter® Instrument
2-4 2450-900-01 Rev. E / August 2019
Control Graphic Description
Use the SENSE HI and SENSE LO terminal connections to measure
voltage at the device under test (DUT). When you use sense leads,
measurement of the voltage drop across the force leads is
eliminated. This produces more accurate voltage sourcing and
measurement at the DUT.
Use FORCE HI and FORCE LO terminal connections to source or
sink voltage or current to or from a device under test (DUT).
TERMINALS switch
Activates the terminals on the front or rear panel. When the
front-panel terminals are active, a green “F” is visible to the left of the
FRONT/REAR switch. When the rear-panel terminals are active, a
yellow “R” is visible to the left of the switch.
Banana jack connector that provides a chassis connection.
Turn the 2450 output on or off
You can turn the 2450 output on from the front panel or by sending remote commands.
Turning the 2450 output off does not place the instrument in a safe state (an interlock is
provided for this function).
Hazardous voltages may be present on all output and guard terminals. To prevent electrical
shock that could cause injury or death, never make or break connections to the 2450 while
the instrument is powered on. Turn off the equipment from the front panel or disconnect the
main power cord from the rear of the 2450 before handling cables. Putting the equipment into
an output-off state does not guarantee that the outputs are powered off if a hardware or
software fault occurs.
When the source of the instrument is turned off, it may not completely isolate the instrument from the
external circuit. You can use the Output Off setting to place the 2450 in a known, noninteractive state
during idle periods, such as when you are changing the device under test. The output-off states that
can be selected for a 2450 are normal, high-impedance, zero, or guard.
See “Output-off state” in the Model 2450 Reference Manual for additional details.
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