Notes:
1. For a reading to be performed and returned via the bus, the :read?
command must be sent after the instrument is configured to the
desired mode.
2. The function “voltage,” “current,” “pcurrent,” and “dvmeter” in the
:sense:function command must be in quotes.
Trigger level — To avoid false pulse detection, use a trigger level of up to
5A. All pulses, noise, or other transients below the set trigger level will be ignored.
Note:
Pulsed current levels must exceed 5mA (the minimum trigger threshold) to be
detected.
Trigger delay — An optional trigger delay can be used to allow leading
edge pulse overshoot to settle. The integration period will not start until the trigger
delay period expires.
Integration times — The three integration time periods for pulse measure-
ments can be set automatically or manually by the user.
1. The PULSE HIGH TIME, PULSE LOW TIME, and PULSE AVG TIME can
be set manually from 33µs to 833ms. Make sure an integration period
does not extend into the wrong portion of the pulse or into the next
pulse. For example, if the pulse is high for 600µs, the high integration
time must be less than 600µs. If not, the instrument will integrate a low
portion of the pulse, making the high pulse measurement erroneous.
Always factor in trigger delay when determining integration times.
2. When the PULSE AUTO TIME operation is performed, the instrument
measures the high and low periods of the first detected pulse and sets
appropriate integration times. The three integration times apply for all
subsequent pulse measurements until another PULSE AUTO TIME is
performed or the times are changed manually. The PULSE AUTO TIME
feature can detect pulses from 80µs to 833ms.
Pulsed Average readings count — The average readings count specifies how
many measurements (integrations) are performed and averaged for each displayed
reading. This is a different setting than the average readings count specified for
“Actual V and I” and “DVM meter.”
M O D E L 2 3 0 4
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