2400 Series SourceMeter
®
User’s Manual Digital I/O Port, Safety Interlock, and Output Configuration 13-9
ZERO
When in this output-off state, the ZER message is displayed (instead of OFF), and the
SourceMeter is configured as follows:
When the V-Source is the selected source:
• The programmed V-Source value remains on the display.
• Internally, the V-Source is set to 0V.
• The current compliance setting remains the same as the output-on value. Real and
range compliance detection remains active.
• Measurements are performed and displayed.
When the I-Source is the selected source:
• The programmed I-Source value remains on the display.
• Internally, the V-Source is selected and set to 0V.
• Current compliance is set to the programmed Source I value or to 0.5% full scale of
the present current range, whichever is greater.
• Measurements are performed and displayed.
While in the ZERO output-off state, the SourceMeter can be used as an I-Meter.
The ZERO output-off state can also be used with the V-Source and Output Auto-Off to
generate very quick pulsed voltage waveforms. For example, with Output Auto-Off
enabled, you can generate 0 to +5V pulses. While in this relatively low-impedance output-
off state, the SourceMeter will be able to quickly dissipate (sink) current caused by high
input capacitance (i.e., cable capacitance) or an external source. This results in fast settling
time. If you instead used the NORMAL output-off state for this application, current would
dissipate very slowly (slow settling time) resulting in distorted pulses.
WARNING Hazardous voltages (30V rms) can appear on the selected INPUT/
OUTPUT LO terminal when generating quick, pulsed waveforms
using the ZERO, AUTO-OFF output state. To eliminate this shock
hazard, connect the LO terminal to earth ground. If using the front
panel terminals, ground the front panel LO terminal. If using the rear
panel terminals, ground the rear panel LO terminal. The ground con-
nection can be made at the chassis ground screw on the rear panel or to
a known safety earth ground.
GUARD
With this output-off state, the current source is selected and set to 0A. Voltage compliance
is set to 0.5% full scale of the present voltage range. This output-off state should be used
when performing 6-wire guarded ohms measurements or for any other load that uses an
active source.
Artisan Technology Group - Quality Instrumentation ... Guaranteed | (888) 88-SOURCE | www.artisantg.com
To Next Page
Loading...
Need help?
General
